CN101165345A - Sliding face modification material, method for producing sliding face modification material, method for using sliding face modification material, sliding members, and compressor - Google Patents

Sliding face modification material, method for producing sliding face modification material, method for using sliding face modification material, sliding members, and compressor Download PDF

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Publication number
CN101165345A
CN101165345A CNA2007101626900A CN200710162690A CN101165345A CN 101165345 A CN101165345 A CN 101165345A CN A2007101626900 A CNA2007101626900 A CN A2007101626900A CN 200710162690 A CN200710162690 A CN 200710162690A CN 101165345 A CN101165345 A CN 101165345A
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China
Prior art keywords
molybdenum disulfide
slip surface
projection
overlay film
compressor
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CNA2007101626900A
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Chinese (zh)
Inventor
吉见祐基
中村洋一郎
川端淳太
石渡正人
日当正人
鹿野胜弘
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Abstract

A highly reliable sliding face modification material capable of forming a stable film of molybdenum disulfide on the sliding face of a sliding member, the sliding face modification material having a molybdenum disulfide content of 95 wt% or more and an organic material content of 1500 ppm or less in weight ratio, and the sliding face modification material being projected onto the sliding face to form a coating layer.

Description

Slip surface material modified and method of manufacture and use thereof, slide member and compressor
Technical field
The present invention relates to be used to carry out the material modified using method of the manufacture method that slip surface is material modified, slip surface is material modified, the slip surface of slip surface modification of slide member, have the material modified slide member of slip surface and use the compressor of this slide member.
Background technique
In recent years, from the viewpoint of earth environment protection, the exploitation of energy-conservation electrical equipment makes progress, and for example, in the compressor that home electric refrigerator etc. uses, provides a kind of energy-saving equipment of friction factor reductionization of the slip surface of realizing slide member.
In the prior art, disclosed and a kind ofly on the slip surface of slide member, throwed molybdenum disulfide, its slip surface is carried out modification, forms the method for the low surface layer of friction factor (for example, with reference to No. 3670598 specifications of Japan Patent at slip surface.)。In addition, also disclosed a kind of compressor, its formation is that the slip surface at slide member roughly is formed uniformly trickle pit, by to its slip surface oil supply, thereby, in trickle pit, keep oil, reduce the friction factor between slide member, reduce slippage loss (for example, with reference to the international pamphlet that discloses No. 2004/055371.)。
Below, describe with reference to the slide member of accompanying drawing existing compressor.
Figure 16 is the longitudinal section that the existing compressor of expression constitutes.Figure 17 is that model utility represents to throw the surface layer cross section of modification has been carried out in existing molybdenum disulfide projection with material amplification stereogram.
As shown in figure 16, seal container 1 contains the electric element 5 that is made of stator 3 and rotor 4, the reciprocating type compressing member 6 that relies on this electric element 5 to drive simultaneously in its bottom store oil 2.Compressing member 6 will compress by the refrigeration agent that suction pipe 20 imports in the seal container 1.
Next, the compressing member 6 about the existing compressor that constitutes as mentioned above describes.
In the compressor, bent axle 7 is provided with oil feed pump 10 by being pressed into the main shaft 8 that is fixed with rotor 4 and constituting with respect to the eccentric shaft 9 of these main shaft 8 off-centre in eccentric shaft 9 lower ends.Eccentric shaft 9 links with piston 15 by the connecting rod 17 as coupling device.The cylinder bore 12 that piston 15 carries out reciprocating action is formed in the cylinder block 11.Cylinder block 11 is provided with the bearing portion 14 by the pressing chamber 13 and the axle supporting spindle 8 of cylinder bore 12 regulation inner peripheral surfaces of general cylindrical shape.
As mentioned above, in the existing compressor, movingly piston 15 links by connecting rod 17 and eccentric shaft 9 via wrist pin 16 slidably in cylinder bore 12.The end face of the cylinder bore 12 in the piston body 11 is by valve plate 18 sealings.In addition, the cylinder head 19 of cylinder block 11 has hyperbaric chamber (not diagram) and low pressure chamber (not diagram), and is fixed on valve plate 18 and opposition side cylinder block 11 (right side of Figure 16).
Suction pipe 20 is fixed on the seal container 1, is connected with the low voltage side (not diagram) of freeze cycle simultaneously, and refrigeration agent is imported in the seal container 1.With being directed to the suction silencing apparatus (suction muffler) 21 that seal container 1 interior refrigeration agent imports to pressing chamber 13, gripped by valve plate 18 and cylinder head 19.
In the existing compressor of Gou Chenging, the eccentric shaft 9 of the main shaft 8 of bent axle 7 and bearing portion 14, piston 15 and cylinder bore 12, wrist pin 16 and connecting rod 17, bent axle 7 and connecting rod 17 form the slide part that slides mutually as mentioned above.And, constitute the slide member of these slide parts, on the slide part surface of any one party, make the slip surface collision of molybdenum disulfide projection, formation surface layer 22 (with reference to Figure 17) with particle with the slide member of material.
Next, the action about the existing compressor that constitutes as mentioned above describes.
If to electric element 5 supply capabilities, then the rotor 4 of electric element 5 rotates from power supply (not diagram), rotor 4 makes bent axle 7 rotations.Based on the rotation of bent axle 7, eccentric shaft 9 carries out eccentric motion, and this eccentric motion makes piston 15 reciprocating actions from the connecting rod 17 as coupling device via wrist pin 16.Piston 15 to-and-fro motion in cylinder bore 12, the refrigeration agent that imports in the seal container 1 by suction pipe 20 is sucked from sucking silencing apparatus 21, is compressed continuously in pressing chamber 13.
Oil 2 rotations along with bent axle 7 to each slide part oil supply, are lubricated each slide part from oil feed pump 10.In addition, the effect of performance sealing in the gap of oil 2 between piston 15 and cylinder bore 12.
In the compressor, as the piston 15 and the cylinder bore 12 of slide member, with very narrow and small gap movingly to reduce leakage loss.Consequently, because piston 15 and the shape of cylinder bore 12, the deviation of precision exist the local position that is in contact with one another take place.
But, on slip surface, be formed with surface layer 22 as slide member one side's piston 15.Thereby, even piston 15 is zero in top dead center and lower dead center speed, and 12 of cylinder bores produce under the situation of Metal Contact, also, make friction factor decline and reduction slippage loss (with reference to No. 3670598 specifications of patent based on the fixed body lubricity that molybdenum disulfide had of the surface layer 22 that forms on piston 15 surfaces.)。In addition, by trickle pit 23 being set on the slide part surface, thereby, when compressed refrigerant, play a role as labyrinth sealing, reduce leakage loss, improve wearability simultaneously (with reference to the international pamphlet that discloses No. 2004/055371.)。
But, the surface layer of the slide part of existing compressor is that the molybdenum disulfide material as the mineral output is carried out ore dressing (pulverizing, classification), uses with material as projection.Thereby, in throwing with material, existing molybdenum disulfide except molybdenum disulfide, also contains a large amount of impurity, wherein contain a lot of organic substance.At this, so-called organic substance is meant the compound that contains C and H, work wet goods oils, dust, dust etc.Such molybdenum disulfide material is projected under the situation that slip surface forms surface layer, often on surface layer formation state, produce deviation, can not be formed uniformly the target overlay film on the whole at slip surface.
Trace it to its cause, can think that the molybdenum disulfide projection is organic existence with the impurity that contains in the material.For this reason, when measuring the organic substance amount that existing molybdenum disulfide projection contains in material, exist with weight ratio as can be known and count more than the 2000ppm.
Can infer, if the molybdenum disulfide projection is with containing organic substance in the material, then when material is used in this projection of projection, organic substance is brought into play the effect of padded coaming earlier attached to the slide part surface, weaken the power of molybdenum disulfide and slide part surface collision, and the energy when when projection and collision is used to organic substance and organic substance and the projection chemical reaction with material, thereby has reduced the energy that is used for surface modification.
Can infer in addition, adsorb with the first-class physical property of material attached to the molybdenum disulfide projection, cause organic desorption when then throwing, thereby because the desorb consumed energy reduce the energy that is used for surface modification if organic substance takes place.
Also have, with containing organic reason in the material, can think residual and the molybdenum disulfide projection is dropped into behind the grenade instrumentation with material adhering to, having again exactly of the mist of oil that contained in the atmosphere of projection in-process of actual projected and working oil as molybdenum disulfide projection owing to sneaking into of dust, dust causes containing organic substance owing to can't remove during ore dressing.
Thereby, use contains a lot of organic existing molybdenum disulfide and throws with material when the slide member surface of compressor is throwed with the formation surface layer, on skin covering of the surface formation state, produce deviation, can not guarantee desirable friction factor, consequently have the possibility that can not fully reduce slippage loss.
In addition, become the surface layer of slip surface etc. in the above-mentioned existing compressor, form by the molybdenum disulfide projection is throwed to the slide part surface with material, but, the slide part surface of surface layer and metal to connect airtight power low, have situation about peeling off from the mother metal of slide member easily.Consequently often do not form surface layer as the overlay film of the lubricated face of target.
The inventor has investigated these and has produced the slide member of peeling off, and found that, does not almost have to form the chemical reactant layer that is made of iron, molybdenum, sulphur between the surface layer of molybdenum disulfide and slide member.
Trace it to its cause, except relation as the projection pressure of the condition of projective techniques and projection amount, also think since the molybdenum disulfide projection with the existence of the impurity that contains in the material.For this reason, measured the amount of moisture that contains in the employed molybdenum disulfide projection material when generation is peeled off.Consequently, molybdenum disulfide throws with the amount of moisture that contains in the material, turns to about 7500ppm by weight.
The chemical reactant layer that forms between the surface layer of molybdenum disulfide and slide member is the particle that relies on molybdenum disulfide with slip surface collision as the metal of mother metal when the heat energy that produces, the particle one of mother metal and molybdenum disulfide reacts and forms.The effect of the surface layer of this chemical reactant layer performance molybdenum disulfide and the tackiness agent of mother metal improves the power of connecting airtight of surface layer that solid solution has molybdenum disulfide and slide member thus.
, be fine-powder as existing projection with the molybdenum disulfide of material, thereby, have the character of the moisture of easy absorption outside air.Thereby can infer, if the molybdenum disulfide projection is with containing moisture in the material, then the molybdenum disulfide particle is become the piece projection, collision energy disperseed when the grain of piece collided with the mother metal of slide member, be used to form the energy shortage of the chemical reactant layer of adhesive surface layer and mother metal, the power of connecting airtight of the mother metal of surface layer and slide member reduces, and produces peeling off of surface layer.
As mentioned above, the surface of the sliding material that uses at compressor is used the molybdenum disulfide projection that contains a lot of moisture to carry out surface layer with material and is formed when handling, and the friction factor that produces the peeling off of surface layer, slide member sometimes can fully not reduce.Consequently, the slide member of existing compressor can not fully reduce slippage loss, the possibility that has wearability to descend.
Summary of the invention
The problem that the present invention promptly solves as mentioned above the slide part of existing compressor etc. produces, its purpose is, the manufacture method that slip surface is material modified, this slip surface is material modified that the reliability that provides the stable overlay film that can carry out molybdenum disulfide to the slip surface of slide member to form is high, can form the material modified using method of the slip surface of stable overlay film of molybdenum disulfide reliably, utilizes the high slide member of the reliability of the material modified modification of slip surface and use the high reliability and the high efficiency compressor of this slide member.
In addition, the objective of the invention is to, provide a kind of mother metal that can form molybdenum disulfide and slide member by reducing the material modified moisture content of slip surface connect airtight the high overlay film layer of power, and can to reduce the slip surface of peeling off of mother metal of overlay film layer and slide member material modified, simultaneously, provide a kind of solid lubrication that friction factor is descended based on formed overlay film layer, thereby the slide member that the reliability that can reduce slippage loss is high also provides a kind of this slide member of use, reliability height and high efficiency compressor.
To achieve these goals, the slip surface of the 1st viewpoint of the present invention is material modified, be to contain the above molybdenum disulfide of 95 weight % and contain organic substance by weight material modified for the following slip surface of 1500ppm, material modified being projected onto of this slip surface forms the overlay film layer on the slip surface.So the slip surface of the present invention that constitutes is material modified, when utilizing blast etc. to project the slide part surface, organic substance reduces, can reduce that organic substance is brought into play the effect of padded coaming and the harmful effect that weakens the power of molybdenum disulfide and slide part surface collision power than the first probability attached to the slide part surface of molybdenum disulfide.In addition, in the time of can suppressing to throw and the energy in when collision be used to the chemical reaction of organic substance and organic substance and projection material and reduce the energy that is used for the slip surface modification, simultaneously can the mortifier rational faculty be adsorbed on the molybdenum disulfide projection and when throwing, cause desorption, can suppress owing to organic desorption consumed energy reduces the energy that is used for the slip surface modification with the organic substance in the material.
The slip surface of the 2nd viewpoint of the present invention is material modified, and the Mean particle diameter of the molybdenum disulfide of above-mentioned the 1st viewpoint is set at the scope below the 50 μ m more than the 1 μ m.So the slip surface of the present invention that constitutes is material modified, and the projection track of organic substance and molybdenum disulfide interference, molybdenum disulfide departs from the time of can preventing to utilize projection such as blast.
The manufacture method that the slip surface of the 3rd viewpoint of the present invention is material modified, the material that contains molybdenum disulfide in heating below 450 ℃, the organic compound combustion that above-mentioned material is contained removes organic substance, reach and contain described organic substance by weight for below the 1500ppm, the molybdenum disulfide that contains is more than the 95 weight %.So in the material modified manufacture method of the slip surface of the present invention that constitutes, heating molybdenum disulfide below 450 ℃, thereby make organic compound combustion remove organic substance, can prevent that molybdenum disulfide is oxidized, can not lose the original solid lubrication function of molybdenum disulfide, can remove to hinder and stablize the organic substance that overlay film forms.
The using method that the slip surface of the 4th viewpoint of the present invention is material modified, to contain the above molybdenum disulfide of 95 weight % and contain organic substance, and project on the slip surface to be heated to state more than 100 ℃, form the overlay film layer of molybdenum disulfide by weight material modified for the following slip surface of 1500ppm.So the material modified using method of slip surface of the present invention that constitutes can reduce owing to the moisture that contains in the projection cycle makes the particle of molybdenum disulfide sticking to each other, preventing because adhesion causes the energy loss increase when throwing.In addition, in the material modified using method of slip surface of the present invention, heated in advance, therefore can be formed stable overlay film with few projection energy because slip surface is material modified.
The slide member of the 5th viewpoint of the present invention will contain the above molybdenum disulfide of 95 weight % and contain organic substance by weight for following material modified the projecting on the slip surface of slip surface of 1500ppm, form the overlay film layer that solid solution has molybdenum disulfide.So the slide member of the present invention that constitutes is handled owing to implement the overlay film of molybdenum disulfide on the slide part surface, and therefore, molybdenum disulfide is with low friction factor division, performance solid lubrication effect.
The compressor of the 6th viewpoint of the present invention is the compressor that uses in making the system of refrigerant cycle, and wherein, at least one member with slip surface uses the slide member of above-mentioned the 5th viewpoint.So the compressor of the present invention that constitutes is handled owing to implement the overlay film of molybdenum disulfide on the slide part surface of slide member, and therefore, molybdenum disulfide is with low friction factor division, performance solid lubrication effect, and the friction factor step-down of slide part reduces slippage loss.
The compressor of the 7th viewpoint of the present invention, it accommodates electric element in the seal container of store oil and compressing member carries out the refrigeration agent compression, wherein,
Above-mentioned compressing member is a kind of reciprocal compressor structure, comprising:
Bent axle, it has the main shaft and the eccentric shaft of the rotor that is fixed with above-mentioned electric element;
Bearing portion, it has supporting above-mentioned rotor and make its thrust face that can rotate, and the main shaft of above-mentioned bent axle is carried out axle support it can be rotated;
Cylinder block, it constitutes cylinder bore;
Piston, its to-and-fro motion in the said cylinder internal diameter;
Wrist pin, itself and above-mentioned eccentric shaft parallel configuration and be fixed on the above-mentioned piston; With
Connecting rod, it links above-mentioned eccentric shaft and above-mentioned piston by above-mentioned wrist pin,
At least one of member that has slip surface in above-mentioned bent axle, above-mentioned bearing portion, said cylinder body, above-mentioned piston, above-mentioned wrist pin and the above-mentioned connecting rod used the slide member of above-mentioned the 5th viewpoint.So the reciprocal compressor of the present invention that constitutes becomes a kind of compressor with friction factor step-down, slippage loss reduction, high reliability and high efficiency reciprocating type compressing member of slide part.
The compressor of the 8th viewpoint of the present invention, it accommodates electric element in the seal container of store oil and compressing member carries out the refrigeration agent compression, wherein,
Above-mentioned compressing member is a kind of rotary plunger formula compressing mechanism, comprising:
Axle, its have the rotor that is fixed with above-mentioned electric element main shaft, from the eccentric part of the rotating shaft eccentric of above-mentioned main shaft and from above-mentioned eccentric part outstanding and with the countershaft of above-mentioned spindle parallel;
Cylinder, its formation have the pressing chamber with the cylinder space of the rotating shaft coaxle of above-mentioned axle;
Rotary plunger, itself and above-mentioned eccentric part and roll in above-mentioned pressing chamber movingly;
Blade, itself and above-mentioned rotary plunger butt, and will be divided into high pressure side and low voltage side in the above-mentioned pressing chamber;
Main bearing, it seals a side that is positioned at the electric element side of said cylinder, and the main shaft of above-mentioned axle is carried out the axle supporting;
Supplementary bearing, it seals another side of said cylinder, and the countershaft of above-mentioned axle is carried out the axle supporting;
The oil supply spring, it is fixed in above-mentioned countershaft; With
Rail, it takes in above-mentioned oil supply spring, and opening end is configured in the above-mentioned oil,
At least one of member that has slip surface in above-mentioned axle, said cylinder, above-mentioned rotary plunger, above-mentioned blade, above-mentioned main bearing, above-mentioned supplementary bearing, above-mentioned oil supply spring and the above-mentioned rail used the slide member of above-mentioned the 5th viewpoint.So the rotary plunger formula compressor of the present invention that constitutes becomes a kind of compressor with friction factor step-down, slippage loss reduction, high reliability and high efficiency rotary compressing member of slide part.
The slip surface of the 9th viewpoint of the present invention is material modified, its be contain the amount of moisture that contains in above molybdenum disulfide of 95 weight % and the molybdenum disulfide by weight for the following slip surface of 5000ppm material modified, wherein, the material modified overlay film layer that forms molybdenum disulfide on the slip surface that is projected onto of above-mentioned slip surface.So the slip surface of the present invention that constitutes is material modified, can prevent that the powder cohesion of molybdenum disulfide, energy that can the slip surface that be throwed is material modified nearly all are used for the chemical reaction of surface modification of the mother metal of slide member, therefore, can providing the power of connecting airtight of mother metal of overlay film layer and slide member, to raise, be difficult to the high performance slip surface peeled off from the mother metal of slide member material modified.
The slip surface of the 10th viewpoint of the present invention is material modified, and the Mean particle diameter that is set at the molybdenum disulfide of above-mentioned the 9th viewpoint is the solid lubrication powder of the following scope of the above 50 μ m of 1 μ m.So the slip surface of the present invention that constitutes is material modified, and the molybdenum disulfide particle is disperseed equably and throw, thereby, can form the overlay film layer of uniform molybdenum disulfide with high filling density, can provide high performance slip surface material modified.
The using method that the slip surface of the 11st viewpoint of the present invention is material modified, to contain the amount of moisture that contains in above molybdenum disulfide of 95 weight % and the molybdenum disulfide and be the material modified overlay film layer that forms molybdenum disulfide on the slip surface that projects of the following slip surface of 5000ppm by weight, wherein, the scope of projection pressure below the above 3.0MPa of 0.5MPa that above-mentioned slip surface is material modified, the scope of projection amount below the above 300g/min of 100g/min.The material modified using method of setting of slip surface of the present invention like this, any one projection can not make the projection material as fine-powder condense with the average diameter of material, it fully can also be quickened in addition, can give the collision energy that is used for being formed uniformly overlay film layer and chemical reactant layer on the mother metal surface of slide member.Consequently, can provide a kind of can form chemical reactant layer with even connecting airtight property and overlay film layer and form the high performance slip surface of uniform overlay film layer material modified.
The slide member of the 12nd viewpoint of the present invention, on the slip surface of the slide member that is made of metallic material, the slip surface that throws above-mentioned the 9th viewpoint or above-mentioned the 10th viewpoint is material modified, forms the overlay film layer that solid solution has molybdenum disulfide.Like this slide member of the present invention that constitutes, the overlay film layer is a layer lattice structure, thereby slippage easily under low shear action, can reduce friction factor, thereby, can provide that friction factor is low, high reliability and high efficiency slide member.
The compressor of the 13rd viewpoint of the present invention is the compressor that uses in making the system of refrigerant cycle, and wherein, at least one member with slip surface uses the slide member of above-mentioned the 12nd viewpoint.Like this compressor of the present invention that constitutes, can provide overlay film layer and slide member mother metal connect airtight the power height, prevent the overlay film layer from the mother metal of slide member peel off, reliability height and the high compressor of energy efficiency.
The compressor of the 14th viewpoint of the present invention, it accommodates electric element in the seal container of store oil and compressing member carries out the refrigeration agent compression, wherein,
Above-mentioned compressing member is a kind of reciprocal compressor structure, comprising:
Bent axle, it has the main shaft and the eccentric shaft of the rotor that is fixed with above-mentioned electric element;
Bearing portion, it has supporting above-mentioned rotor and make its thrust face that can rotate, and the main shaft of above-mentioned bent axle is carried out axle support it can be rotated;
Cylinder block, it constitutes cylinder bore;
Piston, its to-and-fro motion in the said cylinder internal diameter;
Wrist pin, itself and above-mentioned eccentric shaft parallel configuration and be fixed on the above-mentioned piston; With
Connecting rod, it links above-mentioned eccentric shaft and above-mentioned piston by above-mentioned wrist pin,
At least one of member that has slip surface in above-mentioned bent axle, above-mentioned bearing portion, said cylinder body, above-mentioned piston, above-mentioned wrist pin and the above-mentioned connecting rod used the slide member of above-mentioned the 12nd viewpoint.The reciprocal compressor of the present invention that constitutes like this, its slide member forms overlay film on any one slip surface at least in bent axle, bearing portion, cylinder block, piston, wrist pin and connecting rod, thereby connect airtight the power height, overlay film layer that become the mother metal of overlay film layer and slide member are difficult to the structure peeled off from the mother metal of slide member.In addition, the overlay film layer is a layer lattice structure, from but under low shear action the easy structure of slippage, thereby, can provide slide member the friction factor step-down, reduce slippage loss, high reliability and high efficiency reciprocal compressor.
The compressor of the 15th viewpoint of the present invention, it accommodates electric element in the seal container of store oil and compressing member carries out the refrigeration agent compression, wherein,
Above-mentioned compressing member is a kind of rotary plunger formula compressing mechanism, comprising:
Axle, its have the rotor that is fixed with above-mentioned electric element main shaft, from the eccentric part of the rotating shaft eccentric of above-mentioned main shaft and from above-mentioned eccentric part outstanding and with the countershaft of above-mentioned spindle parallel;
Cylinder, its formation have the pressing chamber with the cylinder space of the rotating shaft coaxle of above-mentioned axle;
Rotary plunger, itself and above-mentioned eccentric part and roll in above-mentioned pressing chamber movingly;
Blade, itself and above-mentioned rotary plunger butt, and will be divided into high pressure side and low voltage side in the above-mentioned pressing chamber;
Main bearing, it seals a side that is positioned at the electric element side of said cylinder, and the main shaft of above-mentioned axle is carried out the axle supporting;
Supplementary bearing, it seals another side of said cylinder, and the countershaft of above-mentioned axle is carried out the axle supporting;
The oil supply spring, it is fixed in above-mentioned countershaft; With
Rail, it takes in above-mentioned oil supply spring, and opening end is configured in the above-mentioned oil,
At least one of member that has slip surface in above-mentioned axle, said cylinder, above-mentioned rotary plunger, above-mentioned blade, above-mentioned main bearing, above-mentioned supplementary bearing, above-mentioned oil supply spring and the above-mentioned rail used the slide member of above-mentioned the 12nd viewpoint.The rotary plunger formula compressor of the present invention that constitutes like this, its slide member forms overlay film on any one slip surface at least in axle, cylinder, rotary plunger, blade, main bearing, supplementary bearing, oil supply spring and rail, thereby connect airtight the power height, overlay film layer that become the mother metal of overlay film layer and slide member are difficult to the structure peeled off from the mother metal of slide member.In addition, the overlay film layer is a layer lattice structure, from but under low shear action the easy structure of slippage, thereby, can provide slide member the friction factor step-down, reduce slippage loss, high reliability and high efficiency rotary plunger formula compressor.
The slip surface of the application of the invention is material modified, thereby the stable overlay film that can carry out molybdenum disulfide on the surface of slide part reliably forms, and high slide member of reliability and compressor can be provided.In addition, the material modified manufacture method of slip surface according to the present invention can be conscientiously and easily form the stable overlay film of molybdenum disulfide.Have, the material modified using method of slip surface according to the present invention can be carried out modification to slip surface effectively again, forms the high slide member of reliability.Compressor of the present invention becomes the reliability height of slide part and has the device of excellent refrigeration agent compression efficiency.
The present invention can provide the high slide member of reliability and use this slide member, reliability height and high efficiency compressor, this slide member can make the moisture content of slip surface in material modified be lower than specified value, form the peeling off of mother metal of connecting airtight the high overlay film layer of power, reducing overlay film layer and slide member of the mother metal of molybdenum disulfide and slide member, can make friction factor descend, reduce slippage loss simultaneously based on the solid lubrication of formed overlay film layer.
Description of drawings
Fig. 1 is the longitudinal section of formation of the reciprocal compressor of expression embodiments of the present invention 1.
Fig. 2 is the enlarged view of the A portion of Fig. 1.
Fig. 3 is the amplification stereogram of the B portion of Fig. 2.
Fig. 4 is the figure of overlay film layer formation method of the molybdenum disulfide of explanation embodiments of the present invention 1.
Fig. 5 is the longitudinal section of formation of the rotary plunger formula compressor of expression embodiments of the present invention 2.
Fig. 6 is the sectional view of the VI-VI line of Fig. 5.
Fig. 7 is the amplification stereogram of the E portion of Fig. 6.
Fig. 8 is near the enlarged view of compressing member of expression embodiments of the present invention 3.
Fig. 9 is the amplification stereogram as the C portion of sliding parts of Fig. 8.
Figure 10 is the figure of overlay film layer formation method of the molybdenum disulfide of explanation embodiments of the present invention 3.
Figure 11 is the plotted curve of the molybdenum disulfide projection of expression embodiments of the present invention 3 with the relation that contains amount of moisture and chemical reactant layer of material.
Figure 12 is the compressor of embodiments of the present invention 3 and the performance plot of existing compressor.
Figure 13 is the amplification stereogram of the sliding parts of expression embodiments of the present invention 4.
Figure 14 is the figure of overlay film layer formation method of the molybdenum disulfide of explanation embodiments of the present invention 4.
Figure 15 is the plotted curve of the molybdenum disulfide projection of expression embodiments of the present invention 4 with the relation that contains amount of moisture and chemical reactant layer of material.
Figure 16 is the longitudinal section of the formation of the existing compressor of expression.
Figure 17 is the amplification stereogram of the slip surface of the existing slide member of expression.
Embodiment
Below, the material modified using method of the manufacture method material modified about slip surface of the present invention, that slip surface is material modified, slip surface, and by the slide member of the material modified modification of slip surface,, describe as preferred forms with the compressor that uses slide member with reference to accompanying drawing.Also have, in the following mode of execution, invention is described with to a certain degree level of detail about preferred forms, but, the disclosure of this preferred forms, can suitably change in the trickle part that constitutes, the variation of the combination of each key element and order etc. does not break away from technological thought of the present invention and just can realize.
(mode of execution 1)
Fig. 1 is the longitudinal section that the inside of the reciprocal compressor of expression embodiments of the present invention 1 constitutes.Fig. 2 is the amplification sectional view of the part that symbol A represents among Fig. 1.Fig. 3 is the ideograph that symbol B represents in the enlarged view 2 part is represented with three-dimensional sectional drawing.Fig. 4 is the figure of overlay film layer formation method of the slide part of the model utility compressor of representing mode of execution 1.
Among Fig. 1, in seal container 101, be filled with the refrigeration agent 102 that constitutes by R600a or R134a, simultaneously, oil 103 arranged in its bottom storage.In addition, in seal container 101, contain electric element 106 that constitutes by stator 104 and rotor 105 and the reciprocating type compressing member 107 that drives by this electric element 106.Compressing member 107 will import to refrigeration agents 102 in the seal container 101 via sucking that silencing apparatus 127 sucks and with its compression by suction pipe 125.Compressed refrigeration agent 102 is transported in the freeze cycle as refrigerant-cycle systems by discharge pipe (not having diagram).
Next, the compressing member 107 about the reciprocal compressor of the mode of execution 1 that constitutes as mentioned above describes.
In the compressor of mode of execution 1, as the bent axle 108 of the live axle of compressing member 107, by being pressed into the main shaft 109 that is fixed with rotor 105 and constituting with respect to the eccentric shaft 110 of these main shaft 109 off-centre.In the lower end of eccentric shaft 110, be provided with the oil feed pump 111 of oil supply port in oil for lubricant oil 103.Eccentric shaft 110 is via linking as the connecting rod 122 of coupling device and the piston 119 of compressing member 107.The cylinder bore 113 that piston 119 carries out reciprocating action is formed in the cylinder block 112 that is made of cast iron.Cylinder block 112 has the pressing chamber 120 by cylinder bore 113 regulation inner peripheral surfaces of general cylindrical shape, is provided with the bearing portion 114 of a supporting spindle 109.
Make on main shaft 109 rotor rotated 105, be formed with flanged surface 115 with bearing portion 114 opposed positions (among Fig. 1 to following position), with the upper-end surface of the opposed bearing of this flanged surface 115 portion 114 as thrust face 116.Between the thrust face 116 of the flanged surface 115 of rotor 105 and bearing portion 114, be inserted with thrust washer 117.Constitute thrust bearing division 118 by flanged surface 115, thrust face 116 and thrust washer 117.
With micro-gap movingly piston 119 in cylinder bore 113, is that ferrous materials such as agglomerated material constitute by cast iron or iron in order to reduce leakage loss, forms pressing chamber 120 with cylinder bore 113.This piston 119 links with eccentric shaft 110 by the connecting rod 122 as the coupling device that can rotate via wrist pin 121.In the mode of execution 1, piston 119 and cylinder bore 113, for example with the diameter difference be about 5 μ m～15 μ m gap size movingly.In addition, the opposed end face of the end face with piston 119 of cylinder bore 113 is by valve plate 123 sealings that are fixed on the cylinder block 112.
On the face opposite of valve plate 123, cylinder head 124 is set, in this cylinder head 124, is formed with the hyperbaric chamber (not diagram) and the low pressure chamber (not diagram) that can be communicated with cylinder bore 113 with cylinder block 112.
At the suction pipe 125 that is provided with supply system cryogen 102 in seal container 101 on the seal container 101 with the discharge pipe (not diagram) of discharging of the refrigeration agent 102 after will compressing from seal container 101.Suction pipe 125 and discharge pipe (not diagram) are fixed on the seal container 101, link with freeze cycle (not diagram).Thereby suction pipe 125 imports to refrigeration agent 102 in the seal container 101, and discharge pipe (not diagram) passes out to freeze cycle (not diagram) with refrigeration agent 102.The refrigeration agent that is used for importing in the seal container 101 imports to pressing chamber 120 and the suction silencing apparatus 127 as silencer of connection, by valve plate 123 and cylinder head 124 clampings.
Constitute compressing member 107 as mentioned above, in the compressor of mode of execution 1 that the action of going forward side by side is done, the thrust face 116 of piston 119 and cylinder block 112, main shaft 109 and bearing portion 114, bearing portion 114 and thrust washer 117, wrist pin 121 and connecting rod 122, eccentric shaft 110 and connecting rod 122 form the slide part that slides mutually respectively.At least one side's slide part surface is formed with overlay film layer 128 in each slide part.The content that these overlay film layer 128 projection Mean particle diameters are 8 μ m, molybdenum disulfide is that the above molybdenum disulfide projection of 95 weight % forms with material.The molybdenum disulfide projection of overlay film layer 128 of compressor that is used to form mode of execution 1 is with in the material, and using the molybdenum disulfide projection that is about to before the projection is material below the 1500ppm with the content of organics that contains in the material by weight.
Below, about the overlay film 128 of the slide part of the compressor of mode of execution 1, be that example is elaborated with the situation that on the slip surface of piston 119, forms overlay film layer 128.
Fig. 3 is the partial enlarged drawing of the slide parts that form mutually of piston 119 in the cylinder bore 113 and cylinder block 112.As shown in Figure 3, in the slide part of piston 119 and cylinder block 112, the molybdenum disulfide projection material of the slip surface of piston 119 projection with special formation, formation overlay film layer 128.Among Fig. 3, the slip surface upper edge left and right directions to-and-fro motion that piston 119 forms in cylinder block 112 as cylinder bore 113 inner peripheral surfaces.
Next, describe about the method that on the slip surface of slide part, forms overlay film layer 128.
Fig. 4 is that explanation adopts the molybdenum disulfide projection to form the ideograph of the method for overlay film layer 128 on the slide part surface with material.
The projection material that uses in the overlay film layer formation method of the slide part of the compressor of embodiments of the present invention 1 (for example, piston 119), the content of molybdenum disulfide is more than the 95 weight %, its Mean particle diameter is 8 μ m.
In the overlay film layer forms, at first will be as the molybdenum disulfide material of natural goods 450 ℃ of heating, make content of organics by weight being the above molybdenum disulfide projection material X of 95 weight % for 1500ppm is following, Mean particle diameter is 8 μ m and molybdenum disulfide content.The molybdenum disulfide projection of so making with material keeping more than 100 ℃ temperature, (for example project with the speed more than the 100m/s with carrier gases such as dry airs as the slip surface of the slide member of metal, piston 119 surfaces), make the molybdenum disulfide projection collide (with reference to Fig. 4 (a)) with material X and slip surface.Molybdenum disulfide projection is with the preferred velocity of projection of material X, along with as the difference of the material of the slip surface of object and difference, but must be at least more than 100m/s.When velocity of projection was slower than the speed of 100m/s, molybdenum disulfide projection sometimes can not form preferred overlay film layer 128 with the heat energy deficiency of material X when slip surface collides.
Thus, by molybdenum disulfide projection is projected the slide part surface with material (X), thereby molybdenum disulfide throws kinetic energy with material (X) by being converted to heat energy (with reference to Fig. 4 (b)) with the slide part surface collision.Consequently, on slip surface, carry out surface modification treatment, formation overlay film layer 128 (with reference to Fig. 4 (c)) with the collision of material X based on molybdenum disulfide projection.
About as the action of the reciprocal compressor of the above mode of execution 1 that on slide member, forms overlay film layer 128 describe.
Electric power from power supply (not having diagram) is supplied with to electric element 106, rotor 105 rotations of electric element 106.Rotor 105 makes bent axle 108 rotations, and the eccentric shaft 110 of bent axle 108 carries out eccentric action.The eccentric action of dependence eccentric shaft 110 makes piston 119 reciprocating action in cylinder bore 113 of compressing member 107 via connecting rod 122 and wrist pin 121.Be directed to refrigeration agent 102 in the seal container 101 by suction pipe 125, rely on the reciprocating action of piston 119 cylinder bore 113 in, come in, in pressing chamber 120, be compressed from sucking silencing apparatus 127 suctions.
Be stored in the oil 103 in the seal container 101, along with the rotation of bent axle 108, supply with to each slide part from oil feed pump 111, lubricated each slide part is supplied with the function of performance sealing to the gap of 113 of piston 119 and cylinder bores simultaneously.
Compressed refrigeration agent 102 in the pressing chamber 120 of compressing member 107 is sent (not diagram) in the freeze cycle by discharge pipe (not diagram), circulates in freeze cycle, is directed in the seal container 101 via suction pipe 125 again.
In the existing compressor, when piston carries out reciprocating action in cylinder bore, because the gap of piston and cylinder bore is very narrow, thereby, exist owing to the shape of piston and cylinder bore and the deviation of precision produce the position that the part is in contact with one another.; in the compressor of embodiments of the present invention 1, the overlay film layer 128 that projection molybdenum disulfide projection forms with material is formed at least one side's the slip surface of slide part, thereby; can on slide part, not produce the part and be in contact with one another, can carry out sliding movement smoothly.
Molybdenum disulfide has the character that divides on glide direction, bulk of molecule is little of about 6 * 10 -4μ m, thereby with the division of low friction factor, the friction factor step-down of slide part thus, slippage loss descends.Therefore, have the overlay film layer 128 of molybdenum disulfide owing on slide part, form, thereby the compressor of high efficiency and high reliability can be provided.
Next, about molybdenum disulfide projection with the organic content that contains in the material to the formation of overlay film layer and slide part for example the influence that causes of the wearing and tearing of piston 119 describe.
Following (table 1) is molybdenum disulfide projection with the content of organics that contains in the material change between the 900ppm to 1600ppm, with this molybdenum disulfide projection with material project that the slide part surface forms overlay film layer 128, the piston 119 that will have this overlay film layer 128 is packed compressor into, as refrigeration agent 102 adopt R600a or R134a, reliability trial result during as oily 103 employing mineral oil or ester oil.
Table 1
Figure S2007101626900D00151
The result's of expression (table 1) reliability trial is carried out running in 500 hours under the operating condition of 51 ℃ of condensing temperatures, one 25 ℃ of evaporating temperatures, the wear condition of investigation piston 119.In addition, before the compressor of packing into, utilize EDX (energy dispersion type fluorescent x-ray analyzer) to measure the molybdenum disulfide concentration that contains in the overlay film layer 128 of piston 119.
Shown in (table 1), content of organics is under the situation of 1600ppm, and molybdenum disulfide concentration and content of organics are that the situation below the 1500ppm is compared and tailed off.Trace it to its cause, think that a factor is that the Mean particle diameter of the molybdenum disulfide that adopts in the mode of execution 1 is little of 8 μ m, thereby, interfere, throw track generation deviation mutually with organic substance during projection, the molybdenum disulfide concentration minimizing on the slide part surface of piston 119.Also have,, utilize the analyzer that adopts usually to measure based on the pore electric-resistivity method in this said Mean particle diameter.
Have again, among the result of reliability trial, when utilize content of organics for the projection of the molybdenum disulfide of 1600ppm projection material when the slip surface of piston 119 forms overlay film layer 128, peel off in the part of overlay film layer 128.Also have, when utilizing content of organics to form overlay film layer 128, can't confirm with naked eyes for wearing and tearing for the molybdenum disulfide projection material of 1600ppm.
Peel off about this, can think, because the molybdenum disulfide projection is with containing organic substance in the material, thereby, organic substance is earlier attached to the slide part surface when throwing this projection with material, the effect of performance padded coaming, weaken the power of molybdenum disulfide and slide part surface collision, during projection and the energy in when collision be used to the chemical reaction of organic substance and organic substance and projection material, thereby reduced the energy that is used for surface modification, reach attached to the molybdenum disulfide projection and when throwing, cause desorption with the first-class physical property adsorbed organic matter of material, because the desorb consumed energy, thereby reduced the energy that is used for surface modification, thereby weakened to produce with the connecting airtight property on slide part surface and peel off.
Thereby, overlay film layer formation method according to mode of execution 1, can infer, is below the 1500ppm by setting the molybdenum disulfide projection by weight with the organic substance that contains in the material, thereby, when utilizing blast etc. to project the slide part surface, reduce organic substance significantly than the first probability of molybdenum disulfide, thereby the effect that reduces organic substance performance padded coaming weakens the harmful effect of the power of molybdenum disulfide and slide part surface collision attached to the slide part surface.
In addition, overlay film layer formation method according to mode of execution 1, can infer, thereby in the time of can suppressing to throw and the energy in when collision chemical reaction that is used to organic substance and organic substance and projection material reduce the energy that is used for surface modification, can suppress simultaneously when throwing, to cause desorption with the first-class physical property adsorbed organic matter of material, can suppress owing to organic desorption consumed energy reduces the energy that is used for surface modification attached to the molybdenum disulfide projection.
In the overlay film layer formation method of mode of execution 1, heated by the short time below 450 ℃ as the molybdenum disulfide material of projection with material, make the organic compound combustion that contains in the molybdenum disulfide material, thus molybdenum disulfide can be not oxidized and also lubricating structure molybdenum disulfide undergo no deterioration, can remove almost all organic substance.By heating molybdenum disulfide material under the temperature that requires like this, thereby, can not lose the original solid lubrication function of molybdenum disulfide, can remove the organic substance that hinders stable overlay film to form.
Thereby, in the overlay film layer formation method of mode of execution 1, by heating molybdenum disulfide material under the temperature that requires, making organic content is below the 1500ppm, thereby, handle the molybdenum disulfide projection in the slide part surface projection of the metallic slide member as piston 119 and use material, form overlay film layer 128 reliably, thereby, the slide member that prevents slide part surface abrasion and high reliability can be provided.
In addition, when the projection of material is used in the molybdenum disulfide projection in the overlay film layer formation method of mode of execution 1, the formation that adopts is that the molybdenum disulfide projection is throwed to the slide part surface with the state that keeps temperature more than 100 ℃ with material, thereby can suppress a little moisture of containing owing to the dewfall that in projection cycle, produces and carrier gas etc. the particle of molybdenum disulfide is sticked to each other, suppress significantly because adhesion causes the energy loss when throwing.
Have again, keep molybdenum disulfide projection material in temperature more than 100 ℃ in advance, thereby, even sneak into mist of oil in carrier gas and the air, also can suppress in molybdenum disulfide throws with material, to sneak into, can form stable overlay film.Have again, because the molybdenum disulfide projection is heated in advance with material, therefore can form stable overlay film in the overlay film layer formation method with few projection energy.Also have, because the molybdenum disulfide projection is brought up to 450 ℃ with material temperature, thereby, even in carrier gas and air, sneak into mist of oil, also can further reduce the possibility of in molybdenum disulfide throws with material, sneaking into.
In addition, even molybdenum disulfide 450 ℃ of down heating, so long as the short time (for example, 1 minute in), just can suppress because the bad influence that oxidation reaction makes the lubricating structure of molybdenum disulfide go bad and cause.Thereby,, also can regulate organic content below 1500ppm even when material is used in the molybdenum disulfide projection of having adhered to such higher boiling (for example, the 400 ℃) oil of rust preventive oil in heating.
Also have, in the overlay film layer formation method of mode of execution 1, adopted the molybdenum disulfide projection material of Mean particle diameter 8 μ m, but as long as the scope of Mean particle diameter below 50 μ m more than the 1 μ m just can obtain same effect.According to inventor's experiment,, also often can not form overlay film with material even then handle the molybdenum disulfide projection in the projection of slide member surface if confirm Mean particle diameter less than 1 μ m.Infer that this is because if Mean particle diameter less than 1 μ m, the energy that produces when then the molybdenum disulfide projection is with material and slide member surface collision is too small.In addition, when Mean particle diameter surpasses 50 μ m, in the time of then will turning round, the effect that it should produce does not often appear in the slide member of slide member surface projection molybdenum disulfide projection formation with material overlay film layer 128 is packed compressor into.Infer this be because, because the surface roughness on slide member surface worsens the effect that is difficult to the reduction of acquisition friction factor.
In addition, in the mode of execution 1, compressor about certain speed is narrated, but, along with nearest change can (inverter) be changed development, advance the low speedization of compressor day by day, the more difficult fluid lubrication of keeping in the such ultra low speed operation of not enough 20Hz particularly, Metal Contact takes place and causes that the such problem of inordinate wear is very serious in slide part each other.For this reason, by the overlay film layer of explanation in slide part surface formation mode of execution 1, thereby, the such problem of inordinate wear when solving ultra low speed operation, its effect shows more significantly.
Have again, in the mode of execution 1, slide part surface projection molybdenum disulfide projection about the piston 119 of the one side's slip surface of the conduct in slide part is illustrated with the example that material forms overlay film layer 128, but, also can form the overlay film layer, perhaps also can form overlay film layer 128 at piston 119 and cylinder bore 113 both sides on slide part surface as the cylinder bore 113 of the opposing party's slip surface.So, owing to form overlay film layer 128 the slide part both sides, thus obtain higher wearability.
In addition, in the mode of execution 1, the example that forms overlay film layer 128 about the slide part surface at piston 119 has been described in detail, but, the thrust face 116 and the slide parts such as thrust washer 117, wrist pin 121 and connecting rod 122, eccentric shaft 110 and connecting rod 122 as the upper-end surface of the flanged surface 115 of other slide part that slides mutually in the compressor, the main shaft 108 of for example bent axle 108 and bearing portion 114, rotor 105 and thrust washer 117, bearing portion 114, also pass through to form above-mentioned overlay film layer 128, thus the same effect of effect of explanation in realization and the mode of execution 1.
Have again, in the mode of execution 1, with thrust bearing division 118, by flanged surface 115, thrust face 116 be configured in therebetween thrust washer 117 and constitute example and be illustrated as the slide member of 114 in rotor 105 and bearing portion, but, also can be arranged on other position.For example, can be on the flange part 129 that forms between the main shaft 109 of bent axle 108 and the eccentric shaft 110 and bearing portion 114 opposed positions, form the flanged surface 115A of bent axle 108, form thrust face 116A, constitute thrust bearing division in position with the bearing portion 114 of the opposed slip of this flange part 115A.At this moment, by at least one square one-tenth overlay film layer 128 at slide part, thereby, the same effect of effect of explanation in realization and the mode of execution 1.
Also have, in the compressor of embodiments of the present invention 1, as refrigeration agent 102 so long as R600a, R290 or contain their mix refrigerant or any one refrigeration agent among R134a, R152, R407C, R404A, the R410 just can obtain equal effect.
As more than, as illustrated in the embodiments of the present invention 1, can provide employing to form overlay film layer, slide member that reliability is high on the slide part surface with material, the device that can provide the compressor that this slide member is housed to have high reliability and can compress with high efficiency simultaneously as the projection of the material modified molybdenum disulfide of slip surface.
Material is used in throwing as the material modified molybdenum disulfide of slip surface of embodiments of the present invention 1, the organic substance that wherein contains is by weight for below the 1500ppm, utilize blast etc. to project when the slide part surface, can reduce organic substance weakens the power of molybdenum disulfide and slide part surface collision than the first probability attached to the slide part surface of molybdenum disulfide, the effect that reduces organic substance performance padded coaming influence.
In addition, the slip surface of embodiments of the present invention 1 is material modified, in the time of can suppressing to throw and the energy in when collision be used to the chemical reaction of organic substance and organic substance and projection material and reduce the energy that is used for surface modification, simultaneously can the mortifier rational faculty be adsorbed on the molybdenum disulfide projection and cause desorption when the projection, can suppress owing to organic desorption consumed energy reduces the energy that is used for surface modification with the organic substance on the material.
Material is used in throwing as the material modified molybdenum disulfide of slip surface of mode of execution 1, at the molybdenum disulfide material of the conduct of heating below 450 ℃ projection with the raw material of material, thereby makes the organic compound combustion removal organic substance that wherein contains.The slip surface of the mode of execution 1 of Xing Chenging is material modified thus, thereby prevents that by the short time heating molybdenum disulfide is oxidized, can not lose the original solid lubrication function of molybdenum disulfide, can remove the organic substance that hinders the overlay film layer to form, and forms stable overlay film layer.
In addition, material is used in throwing as the material modified molybdenum disulfide of slip surface of mode of execution 1, because its Mean particle diameter is in the scope of 1～50 μ m, organic substance only contains below the 1500ppm, therefore, organic substance and molybdenum disulfide is interfered, the projection track of molybdenum disulfide departs from the time of can preventing to utilize projection such as blast.
In addition, material is used in throwing as the material modified molybdenum disulfide of slip surface of mode of execution 1, throw to slide part surface with the state that is heated to more than 100 ℃ as object, thereby, can reduce owing to the moisture that contains in the projection cycle makes the particle of molybdenum disulfide sticking to each other, preventing to increase owing to adhesion causes the energy loss in when projection.In addition, also will keeping more with material as the material modified molybdenum disulfide projection of slip surface, high temperature throws, thereby, also can reduce the possibility of in molybdenum disulfide throws with material, sneaking into even in carrier gas and air, sneak into mist of oil, can form stable overlay film.Have again,, in overlay film layer formation operation, heated in advance, therefore can form stable overlay film with few projection energy as the material modified molybdenum disulfide projection material of slip surface.
In addition, projection molybdenum disulfide projection material on the slip surface of the slide part of the slide member of mode of execution 1, for example piston etc., implementing the overlay film of molybdenum disulfide handles, therefore, molybdenum disulfide is with low friction factor division, performance solid lubrication effect, thereby the friction factor step-down of slip surface can reduce slippage loss.
Have again, in the reciprocal compressor of the slide member of employing mode of execution 1, the projection of projection molybdenum disulfide is formed with the overlay film layer with material on the slip surface of at least one slide member of the bent axle as slide member that is made of metallic material, bearing portion, cylinder block, piston, wrist pin, connecting rod, thereby, the friction factor step-down of slide member can realize reducing significantly the excellent like this effect of slippage loss.Particularly between piston and cylinder bore, can not increase gap, refrigerant compressed can be from the clearance leakage of piston and cylinder bore, thereby the compressor of embodiments of the present invention 1 can provide the compressor with high reliability and high efficiency reciprocating type compressing member.
(mode of execution 2)
Next, the rotary plunger formula compressor (rolling pistoncompressor) about embodiments of the present invention 2 describes with reference to accompanying drawing.
Fig. 5 is the longitudinal section of the rotary plunger formula compressor of embodiments of the present invention 2.Fig. 6 is the sectional view of the VI-VI line of Fig. 5.Fig. 7 is the amplification stereogram of the E portion of Fig. 6.
Among Fig. 5 and Fig. 6, in seal container 201, enclose refrigeration agent 202, take in electric element 205 that constitutes by stator 203 and rotor 204 and the rotary plunger formula compressing member 206 that drives by this electric element 205 with oil 207 simultaneously.
Compressing member 206 comprises: the axle 211 that drives by electric element 205, run through this cylinder of 211 213, be fixed on, be fixed on supplementary bearing 215 on the another side of cylinder 213 as the main bearing 214 on the face of the electric element side of 213 1 faces of cylinder, with the rotary plungers 216 of axle 211 interlocks with respect to the blade (vane) 217 of rotary plunger 216 crimping.Axle 211 is made of eccentric part 208, main shaft 209 and countershaft 210.On the main shaft 209 of axle 211, be pressed into the rotor 204 that is fixed with electric element 205.Be formed with pressing chamber 212 in the cylinder 213 of the eccentric part 208 that disposes axle 211, the both ends of the surface of pressing chamber 212 are sealed by the main bearing 214 of axle supporting spindle 209 and the supplementary bearing 215 of axle supporting countershaft 210.Rotary plunger 216 its formations be with eccentric part 208 movingly, in pressing chamber 212, to roll.End at tabular blade 217 is provided with press device, and the other end of blade and rotary plunger 216 surperficial butts and constitute, blade 217 have the function that pressing chamber 212 is divided into high pressure side (not having diagram) and low voltage side (not having to illustrate).
At the suction pipe 222 that is provided with supply system cryogen 202 in seal container 201 on the seal container 201 with the discharge pipe 223 of discharging of the refrigeration agent 202 after will compressing from seal container 201.Suction pipe 222 and discharge pipe 223 are fixed on the seal container 201, with freeze cycle (not diagram) binding as refrigerant-cycle systems.Thereby suction pipe 222 imports to refrigeration agent 202 in the seal container 201, and discharge pipe 223 passes out to freeze cycle (not diagram) with refrigeration agent 202.
As shown in Figure 5, fixing oil pump 218 on supplementary bearing 215, oil pump 218 is made of rail 219 and oil supply springs (spring) 220 of being configured in this rail 219.The opening end of rail 219 front ends is configured in the oil 207.The oil 207 that oil pump 218 will be accommodated in the seal container 201 is supplied with to the slide part of compressor, the slide part that for example is made of respectively eccentric part 208 and rotary plunger 216, main shaft 209 and main bearing 204, countershaft 210 and supplementary bearing 215 etc.
In the rotary plunger formula compressor of mode of execution 2, be that the content of 8 μ m, molybdenum disulfide is that molybdenum disulfide projection more than the 95 weight % is formed with overlay film layer 221 with material in the slide part surface projection Mean particle diameter of eccentric part 208, main shaft 209 and the countershaft 210 of axle 211.When forming this overlay film layer 221, be about to projection molybdenum disulfide projection before and be set at by weight below 1500ppm with the content of organics that contains in the material.
Next, describe with the method that material forms overlay film layer 221 about projection molybdenum disulfide projection in the mode of execution 2.The projection material that adopts in the overlay film layer formation method with respect to the slide part (for example, eccentric part 208) of the compressor of mode of execution 2, the content of molybdenum disulfide is more than the 95 weight % as mentioned above, its Mean particle diameter is 8 μ m.In the overlay film layer formation method of mode of execution 2, same with above-mentioned mode of execution 1, at first, projection 450 ℃ of heating, makes content of organics by weight for below the 1500ppm with material.The overlay film layer formation method of mode of execution 2, identical with the overlay film layer formation method of above-mentioned mode of execution 1, thereby, carry out following explanation with reference to above-mentioned Fig. 4.
With content of organics as mentioned above by weight for the projection of the molybdenum disulfide below the 1500ppm with material keeping more than 100 ℃ temperature, with carrier gases such as dry air with the speed more than the 100m/s to (for example as the slip surface of the slide part of metal, eccentric part 208 surfaces) projection makes the slip surface collision (with reference to Fig. 4 (a)) of molybdenum disulfide and metal.
Thus, by with molybdenum disulfide projection with material to the projection of slide part surface, thereby, the molybdenum disulfide projection with the kinetic energy of material by being converted to heat energy (with reference to Fig. 4 (b)) with the slide part surface collision.Consequently, on slip surface, carry out surface modification treatment with the collision of material, form overlay film layer 221 (representing with overlay film layer 128 among Fig. 4) based on molybdenum disulfide projection.
About describing as the above action that on slide part, forms the rotary plunger formula compressor of overlay film layer 221.
To supply with rotor 204 rotations of electric element 205 from the electric power of power supply (not having diagram) to electric element 205.Along with the rotation of this rotor 204, axle 221 rotations, in pressing chamber 212, roll with eccentric part 208 rotary plunger 216 movingly of axle 211.Consequently, the high pressure side of pressing chamber 212 and the V/V of low voltage side change continuously, and refrigeration agent 202 is compressed continuously thereupon.In a single day compressed refrigeration agent 202 is ejected in the seal container 201, will become the atmosphere of high pressure in the seal container 201, because in the seal container 201 is high pressure, so the atmosphere pressures in the seal container 201 to blade 217 effects, is pressed on the front end of blade 217 outer surface of rotary plunger 216 as back pressure.
In addition, compressed refrigeration agent 202 in pressing chamber 212, the back is sent (not diagram) in the freeze cycle from discharge pipe 223 in the seal container 201 that spues, and circulates in freeze cycle, is directed in the seal container 201 via suction pipe 222 again.In addition, along with the rotation of axle 211, movingly oil supply spring 220 is supplied with oil 207 continuously to each slide part in rail 219.
In the mode of execution 2, owing to adopt rotary plunger formula compressor, thus rotary plunger 216 rotates movingly freely with eccentric part 208.Thereby the relative velocity between rotary plunger 216 and the eccentric part 208 is compared slack-off with the relative velocity between relative velocity, countershaft 210 and the supplementary bearing 215 between main shaft 209 and the main bearing 214.Suo Mofei (Sommerfeld) the number S (shown in the following formula (1)) that this means the expression radial bearing characteristic of being tried to achieve by bearing radius R, bearing play C, axle rotational speed N, oil viscosity μ and bearing surface pressure P diminishes, slide lubricated aspect, be the adverse condition that Metal Contact takes place easily.
S＝μ×N/P×(R/C) 2 (1)
Have again, owing to be condensing pressure in the common seal container 201 of rotary plunger formula compressor, thereby, be that a kind of interior pressure is high, refrigeration agent 202 dissolves in the structure in the oil 207 easily.This structure can make oil 207 viscosity reduce, if the viscosity of oil 207 reduces, the Sommerfeld number S of then above-mentioned expression radial bearing characteristic diminishes, and becomes adverse condition aspect lubricated sliding.
But, in the rotary plunger formula compressor of mode of execution 2, even the Sommerfeld number S shown in the formula (1) diminish such sliding lubricated aspect under the disadvantageous condition, also the slide part surface projection molybdenum disulfide projection of eccentric part 208, main shaft 209 and the countershaft 210 of axle 211 with material, form overlay film layer 221, therefore, because molybdenum disulfide has the character in the glide direction division, bulk of molecule is little of about 6 * 10 -4μ m, thereby with low friction factor division.Consequently, in the compressor of mode of execution 2, the friction factor step-down of slide part, slippage loss descends, thereby, become the compressor of high efficiency and high reliability.
As illustrated in the above-mentioned mode of execution 1, the content of organics that molybdenum disulfide projection contains with material makes a big impact to the molybdenum disulfide concentration and the peeling off of overlay film layer 221 on slide part surface, in the formation of mode of execution 2 too.
That is, if molybdenum disulfide projection with the organic substance that contains in the material by weight for more than the 1500ppm, just find the tendency of the molybdenum disulfide concentration decline on axle 211 surfaces after projection is handled.Think that the Mean particle diameter that a factor is a molybdenum disulfide is little of 8 μ m, thereby, during projection and organic substance interfere mutually, the projection track depart from, the axle 211 surfaces molybdenum disulfide concentration reduce.Confirm in addition, when having implemented failtests, by make the molybdenum disulfide projection with the organic substance that contains in the material by weight being below the 1500ppm, thereby, peeling off phenomenon (with reference to table 1) not.
The overlay film layer formation method of mode of execution 2, with the overlay film layer formation method of above-mentioned mode of execution 1 is identical formation method, thereby, the overlay film layer 221 that forms in the compressor of mode of execution 2, with the overlay film layer 128 that forms in the compressor of mode of execution 1 similarly to metal surface modification, molybdenum disulfide concentration with expectation becomes the stable overlay film that does not have deviation.In addition, the overlay film layer 221 of mode of execution 2, the equal effect of effect that the overlay film layer 128 of realization and mode of execution 1 produces.
Formation according to mode of execution 2, in the time of can suppressing to throw and the energy in when collision be used to the chemical reaction of organic substance and organic substance and projection material and reduce the energy that is used for surface modification, simultaneously can the mortifier rational faculty be adsorbed on the molybdenum disulfide projection and when throwing, cause desorption, can suppress owing to organic desorption consumed energy reduces the energy that is used for surface modification with the organic substance in the material.
Use material as projection with the molybdenum disulfide projection of material, heated by the short time below 450 ℃, thereby make organic compound combustion remove organic substance.Thereby, prevent that molybdenum disulfide is oxidized, can not lose the original solid lubrication function of molybdenum disulfide, can remove the organic substance that hinders stable surface modification.
Make organic compound combustion as mentioned above, making organic content is below the 1500ppm, thereby, molybdenum disulfide projection material, when handling the molybdenum disulfide projection as the slide part surface projection of the metallic slide member of axle 211 and use material, provide to prevent to wear and tear and the slide member of high reliability.
In addition, in the overlay film layer formation method, the molybdenum disulfide projection is throwed to the slide part surface with the state that keeps temperature more than 100 ℃ with material, thereby can suppress owing to a little moisture that the dewfall that produces in projection cycle and carrier gas contain the particle of molybdenum disulfide to be sticked to each other, the energy loss when preventing to cause projection owing to adhesion increases.
Have again, keep molybdenum disulfide projection material in temperature more than 100 ℃ in advance, thereby, even sneak into mist of oil in carrier gas and the air, also can suppress in molybdenum disulfide throws with material, to sneak into, can form stable overlay film.Have, constituting heats molybdenum disulfide projection in advance with material throws, thereby can form stable overlay film with few projection energy again.Also have, because the molybdenum disulfide projection is brought up to 450 ℃ with material temperature, thereby, even in carrier gas and air, sneak into mist of oil, also can further reduce the possibility of in molybdenum disulfide throws with material, sneaking into.
In addition, even molybdenum disulfide 450 ℃ of down heating, so long as the short time (for example, 1 minute in), just can suppress because the bad influence that oxidation reaction makes the lubricating structure of molybdenum disulfide go bad and cause.Thereby,, also can regulate organic content below 1500ppm even when material is used in the molybdenum disulfide projection of having adhered to such higher boiling (for example, the 400 ℃) oil of rust preventive oil in heating.
Also have, in the overlay film layer formation method of mode of execution 2, adopted the molybdenum disulfide projection material of Mean particle diameter 8 μ m, but as long as the scope of Mean particle diameter below 50 μ m more than the 1 μ m just can obtain same effect.According to inventor's experiment,,, also often can not form overlay film even then handle molybdenum disulfide projection material in the projection of slide member surface if confirm Mean particle diameter less than 1 μ m.Infer that this is because if Mean particle diameter less than 1 μ m, the energy that produces when then molybdenum disulfide throws material and slide member surface collision is too small.In addition, when Mean particle diameter surpasses 50 μ m, then will throw slide member that molybdenum disulfide projection material formed the overlay film layer on the surface and pack into and often do not occur effect when turning round in the compressor.Infer this be because, because the surface roughness on slide member surface worsens the effect that is difficult to the reduction of acquisition friction factor.
Have again, in the mode of execution 2, eccentric part 208 about the one side's slip surface of the conduct in slide part, the slide part surface projection molybdenum disulfide projection of main shaft 209 and countershaft 210 is illustrated with the example that material forms overlay film layer 221, but, also can be in interior perimeter surface as the rotary plunger 216 of the opposing party's slip surface, main bearing 214, the slide part of supplementary bearing 215 surface forms the overlay film layer, perhaps also can be in eccentric part 208 and rotary plunger 216 the perimeter surface both sides, main shaft 209 and main bearing 214 both sides, countershaft 210 and supplementary bearing 215 both sides form overlay film layer 221.So, owing to form overlay film layer 221 the slide part both sides, thus obtain higher wearability.
In addition, in the mode of execution 2, the example that forms overlay film layer 221 about the slide part surface at axle 211 has been described in detail, but, by other slide part that in compressor, slides mutually, for example rotary plunger 216 and blade 217, main bearing 214 and blade 217, supplementary bearing 215 and blade 217, main bearing 214 and rotary plunger 216, supplementary bearing 215 and rotary plunger 216, cylinder 213 and blade 217, cylinder 213 and rotary plunger 216, and the slide part surface of rail and oil supply spring, the projection of projection molybdenum disulfide forms overlay film layer 221 with material, thus the same effect of effect of explanation in realization and the mode of execution 2.
Also have, in the compressor of embodiments of the present invention 2, as refrigeration agent 202 so long as R600a, R290 or contain their mix refrigerant or any one refrigeration agent among R134a, R152, R407C, R404A, the R410 just can obtain equal effect.
Along with the development that nearest change can be changed, advance the low speedization of compressor day by day, particularly Metal Contact takes place and causes that the such problem of inordinate wear is more serious in slide part each other in the such ultra low speed operation of not enough 20Hz.In the mode of execution 2, compressor about certain speed is illustrated, but passes through the surperficial overlay film layer that forms explanation in the mode of execution 2 of slide part at the compressor of variable velocity, thereby, the such problem of inordinate wear when solving ultra low speed operation, its effect shows more significantly.
As more than, as explanation in the embodiments of the present invention 2, can provide employing to form overlay film layer, slide member that reliability is high as the projection of the material modified molybdenum disulfide of slip surface on the slide part surface with material, the compressor that this slide member is housed simultaneously can provide the device that has high reliability and can compress with high efficiency.
Material is used in throwing as the material modified molybdenum disulfide of slip surface of embodiments of the present invention 2, be defined as the organic substance that wherein contains below the 1500ppm by weight, utilize blast etc. to project when the slide part surface, can reduce organic substance weakens the power of molybdenum disulfide and slide part surface collision than the first probability attached to the slide part surface of molybdenum disulfide, the effect that reduces organic substance performance padded coaming harmful effect.
In addition, use material by adopting throwing of embodiments of the present invention 2 as the material modified molybdenum disulfide of slip surface, thereby in the time of can suppressing to throw and the energy in when collision be used to the chemical reaction of organic substance and organic substance and projection material and reduce the energy that is used for surface modification, simultaneously can the mortifier rational faculty be adsorbed on the molybdenum disulfide projection and when throwing, cause desorption, can suppress owing to organic desorption consumed energy reduces the energy that is used for surface modification with the organic substance in the material.
In addition, material is used in throwing as the material modified molybdenum disulfide of slip surface of mode of execution 2, use the molybdenum disulfide material of the raw material of material as projection in heating below 450 ℃, thereby the organic compound combustion that wherein contains is removed organic substance, thereby prevent that by the short time heating molybdenum disulfide is oxidized, can not lose the original solid lubrication function of molybdenum disulfide, remove the organic substance that hinders stable overlay film layer to form.
In addition, material is used in throwing as the material modified molybdenum disulfide of slip surface of mode of execution 2, because its Mean particle diameter is the following scope of 50 μ m more than the 1 μ m, organic substance only contains below the 1500ppm, therefore, organic substance and molybdenum disulfide is interfered, the projection track of molybdenum disulfide departs from the time of can preventing to utilize projection such as blast.
In addition, material is used in throwing as the material modified molybdenum disulfide of slip surface of mode of execution 2, throw to slide part surface with the state that is heated to more than 100 ℃ as object, thereby, can reduce owing to the moisture that contains in the projection cycle makes the particle of molybdenum disulfide sticking to each other, preventing to increase owing to adhesion causes the energy loss in when projection.In addition, to further keep the high temperature projection with material as the material modified molybdenum disulfide projection of slip surface, thereby, also can reduce the possibility of in molybdenum disulfide throws with material, sneaking into even in carrier gas and air, sneak into mist of oil, can form stable overlay film.Have again, use material, heated in advance, therefore can form stable overlay film with few projection energy as the molybdenum disulfide projection that slip surface is material modified.
In addition, the overlay film that the projection of projection molybdenum disulfide is implemented molybdenum disulfide with material on the slip surface of the slide part of the slide member of mode of execution 2, for example piston etc. is handled, therefore, molybdenum disulfide is with low friction factor division, performance solid lubrication effect, thereby, the friction factor step-down of slip surface can reduce slippage loss.
Have again, adopted in the rotary plunger formula compressor of slide member of embodiments of the present invention 2, the projection of projection molybdenum disulfide is formed with the overlay film layer with material at least one of the axle as slide member that is made of metallic material, cylinder, rotary plunger, blade, main bearing, supplementary bearing, oil supply spring, rail, thereby, the solid lubrication effect of performance molybdenum disulfide, the friction factor step-down of slide member can realize reducing significantly the excellent like this effect of slippage loss.Thereby the compressor of embodiments of the present invention 2 can provide the compressor with high reliability and high efficiency rotary compressing member.
(mode of execution 3)
Next, the reciprocal compressor about embodiments of the present invention 3 describes with reference to accompanying drawing.The inside of the reciprocal compressor of mode of execution 3 constitutes, and has the practically identical formation of compressor with above-mentioned mode of execution 1 shown in Figure 1, thereby, utilize Fig. 1 to describe about the compressor of mode of execution 3.
Fig. 8 is the amplification sectional view of part corresponding with part shown in the symbol A in the compressor shown in Figure 1.Fig. 9 is the figure with the amplification of part shown in the symbol C of Fig. 8, stereo representation.Figure 10 is the figure of overlay film layer formation method of the slide part of the model utility compressor of representing mode of execution 3.Figure 11 is that expression is as the plotted curve of the material modified molybdenum disulfide of slip surface projection with the relation of the thickness of amount of moisture that contains in the material and chemical reactant layer.Figure 12 is the reciprocal compressor of mode of execution 3 and the performance plot of existing compressor.
Identical with the reciprocal compressor of mode of execution 1 shown in Figure 1, in the reciprocal compressor of mode of execution 3, also be in seal container 101, to fill the refrigeration agent 102 that constitutes by R600a or R134a, simultaneously, in its bottom store oil 103.In addition, in seal container 101, accommodate electric element 106 that constitutes by stator 104 and rotor 105 and the reciprocating type compressing member 107 that drives by this electric element 106.Compressing member 107 will import to refrigeration agents 102 in the seal container 101 via sucking that silencing apparatus 127 sucks and with its compression by suction pipe 125.Compressed refrigeration agent 102 is not transported to the freeze cycle as refrigerant-cycle systems by there being illustrated discharge pipe (not having diagram).
The formation of the compressing member 107 of the reciprocal compressor of mode of execution 3, identical with the reciprocal compressor of above-mentioned mode of execution 1, thereby in this omission.
In the compressor of the mode of execution 3 that constitutes as mentioned above, the thrust face 116 of piston 119 and cylinder block 112, main shaft 109 and bearing portion 114, bearing portion 114 and thrust washer 117, wrist pin 121 and connecting rod 122, eccentric shaft 110 and connecting rod 122 form the slide part that slides mutually respectively.At least one side's slide part surface forms overlay film layer 328 in each slide part.This overlay film layer 328 is that the content of 8 μ m, molybdenum disulfide is that molybdenum disulfide projection more than the 95 weight % forms with material projection, solid solution with Mean particle diameter.
Below, about the overlay film 328 of the slide part of the compressor of mode of execution 3, be that example is elaborated with the situation that on the slip surface of piston 119, forms overlay film layer 328.
The slip surface of the piston 119 in the slide part that the inner face of the cylinder bore 113 of piston 119 and cylinder block 112 slides mutually, forming solid solution has the overlay film layer 328 of molybdenum disulfide projection with material.
Figure 10 is that explanation adopts the molybdenum disulfide projection to form the ideograph of the method for overlay film layer 328 on the slide part surface with material.In the mode of execution 3, the method that the molybdenum disulfide projection that employing will have been managed amount of moisture is collided with the slip surface of fixing speed and slide member together with gases such as material and dry airs.
In the overlay film layer formation method of mode of execution 3, projection is more than the 95 weight % with the content of molybdenum disulfide in the material, and its Mean particle diameter is 8 μ m.In addition, being about to throw the amount of moisture that contains in the preceding molybdenum disulfide is below the 5000ppm by weight.As the projection condition, projection pressure is the following scope of the above 3.0MPa of 0.5MPa, and the projection amount is the following scope of the above 300g/min of 100g/min.Utilize on the piston 119 as slide member of this overlay film layer formation method formation, between the mother metal of overlay film layer 328 and slide member, form the chemical reactant layer 329 (with reference to Fig. 9) that constitutes by iron, carbon, molybdenum, sulphur.
At first making the amount of moisture that contains in the molybdenum disulfide material during the overlay film layer forms is the above molybdenum disulfide projection material X of 95 weight % for the content that 5000ppm is following, Mean particle diameter is 8 μ m and molybdenum disulfide by weight.Is that scope, projection amount 0.5MPa above 3.0MPa below be scope 100g/min above 300g/min below with carrier gases such as dry airs according to throwing pressure with material X with the molybdenum disulfide projection of so making, to (for example as the slip surface of the slide member of metal, piston 119 surfaces) projection makes the molybdenum disulfide projection collide (with reference to Figure 10 (a)) with material X and slip surface.Molybdenum disulfide projection is with the preferred projection amount of material X, along with as the difference of the material of the slip surface of object and difference, but must be at least more than the 100g/min.When the projection amount was less than 100g/min, molybdenum disulfide projection sometimes can not form preferred overlay film layer 328 with the heat energy deficiency of material X when slip surface collides.
Thus, by with molybdenum disulfide projection with material X to the projection of slide part surface, thereby, the molybdenum disulfide projection with the kinetic energy of material X by being converted to heat energy (with reference to Figure 10 (b)) with the slide part surface collision.Consequently, projection is carried out surface modification treatment with the collision of material X based on molybdenum disulfide on slip surface, forms overlay film layer 328 and chemical reactant layer 329 on the slip surface on the mother metal of slide member.
About as the action of the reciprocal compressor of the above mode of execution 3 that on slide member, forms overlay film layer 328 because identical with the action of the reciprocal compressor of above-mentioned mode of execution 1, thereby, in this omission.
In the existing compressor, when piston carries out reciprocal compressed action in cylinder bore, because the gap of piston and cylinder bore is very narrow, thereby, exist owing to the position that the part is in contact with one another takes place for the shape of piston and cylinder block and the deviation of precision.; in the compressor of embodiments of the present invention 3, with the molybdenum disulfide that material uses, has character in the glide direction division as projection; the overlay film layer 328 of molybdenum disulfide is a layer lattice structure, thereby has the character of easy slippage under low shear action.Consequently according to the formation of the compressor of mode of execution 3, the friction factor of slip surface reduces, and slippage loss descends, and high reliability and high efficiency compressor can be provided.
In addition, in the compressor of embodiments of the present invention 3, the connecting airtight property height of the mother metal of overlay film layer 328 and slide member, for example piston 119, overlay film layer 328 can be peeled off from the mother metal of piston 119 hardly, thereby the slide part that becomes piston 119 and cylinder bore 113 is difficult to the structure of wearing and tearing.Consequently, in the compressor of mode of execution 3, suppress because the wear and tear piston 119 that causes and the expansion in the gap between the cylinder bore 113, reduce the clearance leakage of refrigerant compressed 102 significantly from 113 of piston 119 and cylinder bores.Consequently, according to the formation of mode of execution 3, can provide more high reliability and high efficiency compressor.Also have, about as the efficient aftermentioned of the compressor of the present invention of above formation.
Next, the chemical reactant layer that connects airtight power 329 about the mother metal of the overlay film layer 328 that improves molybdenum disulfide and slide member describes with reference to Figure 11.Figure 11 is that expression is as the plotted curve of the material modified molybdenum disulfide of slip surface projection with the relation of amount of moisture that contains in the material and chemical reactant layer 329.Among Figure 11, transverse axis is represented molybdenum disulfide projection with the amount of moisture that contains in the material [ppm], and the longitudinal axis is illustrated in the thickness [nm] of chemical reactant layer 329 of the slip surface formation of slide member.
As shown in figure 11, can be interpreted as if the molybdenum disulfide projection contains by weight the moisture more than 5000ppm, the then rapid attenuation of thickness of the chemical reactant layer 329 of Xing Chenging with material.Thereby can be interpreted as by the molybdenum disulfide projection is suppressed to by weight below 5000ppm with the amount of moisture that contains in the material, thereby, form the chemical reactant layer 329 stablize thickness, can guarantee the big power of connecting airtight of the mother metal of overlay film layer 328 and slide member reliably.In addition, what confirm by experiment is that this connects airtight power, is below the 50 μ m in molybdenum disulfide projection with the Mean particle diameter of material, and projection pressure is the scope below the above 3.0MPa of 0.5MPa, and the projection amount can access when being scope below the above 300g/min of 100g/min to be guaranteed.
Throw with the amount of moisture that contains in the material by reducing molybdenum disulfide, thereby, prevent because the cohesion of the molybdenum disulfide powder that the influence of moisture causes, in addition, at projection pressure is scope below the above 3.0MPa of 0.5MPa, and the projection amount is that the following scope projection molybdenum disulfide of the above 300g/min of 100g/min throws and uses material, thereby, the molybdenum disulfide powder can not condense, and can fully quicken.
Thereby, can will almost all supply with the kinetic energy that material produces by the projection of projection molybdenum disulfide to slide member.And, its kinetic energy is converted into heat energy, thereby, molybdenum disulfide projection material thermodiffusion on slide member, promote the reaction of molybdenum disulfide projection with material and slide member, thereby, between overlay film layer 328 and slide member, form the chemical reactant layer 329 of the stable thickness that constitutes by iron, carbon, molybdenum, sulphur.
Like this chemical reactant layer 329 that forms, the effect of the tackiness agent between performance piston 119 slide members such as grade and the overlay film layer 328 can improve the power of connecting airtight between the mother metal of slide members such as overlay film layer 328 that solid solution has molybdenum disulfide and piston 119.Consequently, can form the overlay film layer 328 that has the extremely strong power of connecting airtight with respect to the mother metal of slide member.
In the embodiments of the present invention 3, use material as the molybdenum disulfide projection that slip surface is material modified, being stored in humidity is below 50%, preferentially is the scope below 40% more than 30%, and temperature is set in the place of the scope below 35 ℃ more than 19 ℃.In addition, the data when molybdenum disulfide projection has been preserved 7 days with material in above-mentioned place of retention, the moisture that contains reduces to 1215ppm from 2856ppm, and molybdenum disulfide throws and can't discern with the organic increase and decrease that contains in the material.At this, so-called organic substance, basically be the compound that contains C and H, work wet goods oils, dust, dust.As mentioned above, preserve under rated condition as slip surface when material use in material modified molybdenum disulfide projection, the amount of moisture that contains reaches easily by weight below 5000pmm.What also confirm is to preserve the molybdenum disulfide projection when use material in not setting the free warehouse of preservation condition as mentioned above, the value that preservation became above 5000ppm in 7 days.
Next, the characteristic of compressor that projection molybdenum disulfide projection material forms the slide member of overlay film layer 328 that is equipped with about embodiments of the present invention 3 describes.
Figure 12 is the compressor of employing slide member of expression embodiments of the present invention 3 and the characteristic plotted curve relatively of existing compressor.Among Figure 12, the longitudinal axis is represented efficient [C.O.P. (achievement coefficient)], and the right side is the compressor of embodiments of the present invention 3, and the left side is the efficient of existing compressor.
In the compressor of mode of execution 3 shown in Figure 12, the slide member that forms overlay film layer 328 and chemical reactant layer 329 with material as the projection molybdenum disulfide projection piston 119 of packing into.In addition, the piston 119 of the compressor of mode of execution 3 and the gap of cylinder bore 113 are set at identical gap with the piston and the cylinder bore of existing compressor.
Show that by Figure 12 distinguish that the compressor of embodiments of the present invention 3 compares with existing compressor, the deviation of efficient is little, efficient height on mean value.
In reciprocal compressor shown in Figure 1, when piston 119 arrival top dead centers also had lower dead center, speed was 0, does not produce oil pressure in theory, does not form oil film.For this reason, also have lower dead center, often produce Metal Contact at piston 119 and 113 of cylinder bores at the top dead center of piston 119.
In addition, when piston 119 is near the top dead center, piston 119 is subjected to big compressive load under compressed high-pressure refrigerant effect, this compressive load passes to bent axle 108 via wrist pin 121, connecting rod 122, and bent axle 108 is pushed to the direction opposite with the movement direction of piston 119 and tilts.If bent axle 108 tilts, then piston 119 tilts in the cylinder bore 113.Consequently, in the upper-end surface of piston 119 side (the face side of symbol 130 expressions among Fig. 8) and lower end surface side (the face side of symbol 131 expressions among Fig. 8), and the inner face of cylinder bore 113 between produce chucking, wear and tear thereby piston 119 moves generation when contact with cylinder bore 113.
But, in the embodiments of the present invention 3, the overlay film layer 328 of molybdenum disulfide improves the power of connecting airtight with the mother metal of piston 119 based on chemical reactant layer 329.Thereby overlay film layer 328 is difficult to peel off from the mother metal of piston 119, and overlay film layer 328 is a layer lattice structure, thereby structure with easy slippage under low shear action, thereby the friction factor of the slip surface of slide member reduces, and slippage loss descends significantly.Consequently, the structure of 3 compressor can provide high reliability and high efficiency compressor according to the embodiment of the present invention.
Particularly in the situation of the reciprocating type compression of the structure of single armed block bearing shown in the mode of execution 3, near the inclination of the bent axle 108 the top dead center of above-mentioned piston 119 is big especially, thereby, become the contacting of piston 119 and cylinder bore 113, chucking, wearing and tearing and show significant structure, load to overlay film layer 328 increases, and when this, have the overlay film layer 328 of mode of execution 3 and the piston 119 of chemical reactant layer 329, give full play to overlay film layer 328 and be difficult to peel off such excellent effect.
Also have, in the mode of execution 3, adopt the molybdenum disulfide projection of Mean particle diameter 8 μ m to use material, but, so long as the solid lubrication powder of Mean particle diameter below 50 μ m just can obtain same effect.When Mean particle diameter surpasses 50 μ m, even will also often when its compressor operation, can't bring into play effect in the formation during the slide member that slide member surface projection molybdenum disulfide projection material has formed the overlay film layer is packed compressor into.Infer this be because, because the surface roughness on slide member surface worsens the effect that is difficult to the reduction of acquisition friction factor.
Along with becoming the development that to change, advance the low speedization of compressor day by day, the particularly more difficult establishment of fluid lubrication in the such Ultra-Low Speed of not enough 20Hz moves, Metal Contact takes place easily, therefore, although the compressor about certain speed is narrated in the mode of execution 3, but, by at the slide member that can Ultra-Low Speed adopts mode of execution 3 in the compressor of action, thereby its effect shows more significantly.
Also have, in the mode of execution 3, form the overlay film layer 328 that solid solution has molybdenum disulfide, but, also can form, have again also and can on piston 119 and cylinder bore 113 both sides, form on the slide part surface of cylinder bore 113 on the slide part surface of piston 119.When on piston 119 and cylinder bore 113 both sides, forming overlay film layer 328, obtain higher wearability.
In addition, in the mode of execution 3, in the formation solid solution of the slide part surface of piston 119 situation of the overlay film layer 328 of molybdenum disulfide to be arranged is that example has been described in detail, but, in the main shaft 109 and the bearing portion 114 that form the bent axle 108 of slide part mutually, the flanged surface 115 of rotor 105 and thrust washer 17, the thrust face 116 of the upper-end surface of bearing portion 114 and thrust washer 117, wrist pin 121 and connecting rod 122, eccentric shaft 110 and connecting rod 122 wait in each slide part, also pass through to form overlay film layer 328, thus the same excellent effect of narrating in the formation of realization and mode of execution 3 of effect.
Have again, in the mode of execution 3, with thrust bearing division 118, by flanged surface 115, thrust face 116 be configured in therebetween thrust washer 117 and constitute example and be illustrated as the slide member of 114 in rotor 105 and bearing portion, but, also thrust bearing division can be arranged on other position.For example, can be on the flange part 129 that forms between the main shaft 109 of bent axle 108 and the eccentric shaft 110 and bearing portion 114 opposed positions, form the flanged surface 115A of bent axle 108, form thrust face 116A, constitute thrust-bearing in position with the bearing portion 114 of the opposed slip of this flanged surface 115A.At this moment, by at least one square one-tenth overlay film layer 328 at slide part, thereby, the same effect of effect of explanation in realization and the mode of execution 3.
Also have, in the compressor of embodiments of the present invention 3, as refrigeration agent 102 so long as R600a, R290 or contain their mix refrigerant or any one refrigeration agent among R134a, R152, R407C, R404A, the R410 just can obtain equal effect on slide part.
As more than, as illustrated in the embodiments of the present invention 3, can provide employing to form overlay film layer and chemical reactant layer, slide member that reliability is high as the projection of the material modified molybdenum disulfide of slip surface on the slide part surface with material, the compressor that this slide member is housed simultaneously can provide the device that has high reliability and can compress with high efficiency.
(mode of execution 4)
Next, the rotary plunger formula compressor about embodiments of the present invention 4 describes with reference to accompanying drawing.The inside of the rotary plunger formula compressor of mode of execution 4 constitutes, and has the practically identical formation of compressor with above-mentioned Fig. 5 and mode of execution 2 shown in Figure 6, thereby, utilize Fig. 5 and Fig. 6 to describe about the compressor of mode of execution 4.
Figure 13 is the amplification stereogram of the sliding parts of the expression mode of execution 4 corresponding with the E portion of Fig. 6.Figure 14 is the figure that the overlay film layer of the molybdenum disulfide of explanation mode of execution 4 forms.Figure 15 is that expression is as the plotted curve of the material modified molybdenum disulfide of slip surface projection with the relation that contains amount of moisture and chemical reactant layer of material.
As Fig. 5 and shown in Figure 6, the rotary plunger formula compressor of mode of execution 4, in seal container 201, fill refrigeration agent 202, take in electric element 205 that constitutes by stator 203 and rotor 204 and the rotary plunger formula compressing member 206 that drives by this electric element 205 with oil 207 simultaneously.
The formation of compressing member 206 grades of the rotary plunger formula compressor of mode of execution 4, identical with the compressor of mode of execution 2, thereby, in this omission.
In the rotary plunger formula compressor of mode of execution 4, slide part surface in eccentric part 208, main shaft part 209 and the countershaft portion 210 of axle 211, forming and making Mean particle diameter is that the content of 8 μ m, molybdenum disulfide is the molybdenum disulfide of solid solution was collided, makes it in the above molybdenum disulfide projection of 95 weight % with material and slip surface overlay film layer 421.
Next, material modified molybdenum disulfide projection describes with the method that material forms overlay film layer 421 as slip surface about projection in the embodiments of the present invention 4.The projection material that adopts in the overlay film layer formation method with respect to the slide part (for example, eccentric part 208 shown in Figure 6) of the compressor of mode of execution 4, the content of molybdenum disulfide is more than the 95 weight % as mentioned above, its Mean particle diameter is 8 μ m.In the overlay film layer formation method of mode of execution 4, the method that the molybdenum disulfide projection that employing will have been managed amount of moisture is collided with the slip surface of fixing speed and slide member together with gases such as material and dry airs.
In the mode of execution 4, being about to the preceding molybdenum disulfide of projection throws with the amount of moisture that contains in the material by weight for below the 5000ppm, as the projection condition, projection pressure is the following scope of the above 3.0MPa of 0.5MPa, and the projection amount is the following scope of the above 300g/min of 100g/min.Utilize on the slide member of this overlay film layer formation method formation, between the mother metal of overlay film layer 421 and slide member, form the chemical reactant layer 422 (with reference to Figure 13) that constitutes by iron, carbon, molybdenum, sulphur.
At first make during the overlay film layer forms the molybdenum disulfide material the amount of moisture that contains by weight below the 5000ppm, Mean particle diameter is that the content of 8 μ m and molybdenum disulfide is the molybdenum disulfide projection material X more than the 95 weight %.Is that scope, projection amount 0.5MPa above 3.0MPa below be scope 100g/min above 300g/min below with carrier gases such as dry airs according to throwing pressure with material with the molybdenum disulfide projection of so making, to (for example as the slip surface of the slide member of metal, the surface of eccentric part 208) projection makes the molybdenum disulfide projection collide (with reference to Figure 14 (a)) with material X and slip surface.Molybdenum disulfide projection is with the preferred projection amount of material X, along with as the difference of the material of the slip surface of object etc. and difference, but must be at least more than the 100g/min.When the projection amount was less than 100g/min, molybdenum disulfide projection sometimes can not form preferred overlay film layer 421 with the heat energy deficiency of material X when slip surface collides.
Thus, by with molybdenum disulfide projection with material X to the projection of slide part surface, thereby, the molybdenum disulfide projection with the kinetic energy of material X by being converted to heat energy (with reference to Figure 14 (b)) with the slide part surface collision.Consequently, projection is carried out surface modification treatment with the collision of material X based on molybdenum disulfide on slip surface, forms overlay film layer 421 and chemical reactant layer 422 (with reference to Figure 14 (c)) on the slip surface on the mother metal of slide member.
About as the action of the rotary plunger formula compressor of the above mode of execution 4 that on slide member, forms overlay film layer 421 because identical with the action of the compressor of above-mentioned mode of execution 2, thereby, in this omission.
In the mode of execution 4, owing to adopt rotary plunger formula compressor, thus rotary plunger 216 rotates movingly freely with eccentric part 208.Thereby the relative velocity between rotary plunger 216 and the eccentric part 208 is compared slack-off with the relative velocity between relative velocity, countershaft 210 and the supplementary bearing 215 between main shaft 209 and the main bearing 214.Thereby, become oil film and form difficulty relatively, easily the structure of Metal Contact take place.
In addition, owing to be condensing pressure in the common seal container 201 of rotary plunger formula compressor, thereby, be that a kind of interior pressure is high, refrigeration agent 202 dissolves in the structure in the oil 207 easily.This structure becomes the reason of the viscosity that reduces oil 207, becomes adverse condition aspect lubricated sliding.
But, in the mode of execution 4, the overlay film layer 421 of molybdenum disulfide improves the connecting airtight property with the mother metal of the eccentric part 208 of axle 211 based on chemical reactant layer 422, thereby, overlay film layer 421 is difficult to peel off and overlay film layer 421 is layer lattice structure slippage easily under low shear action, thereby the friction factor of slip surface reduces, and slippage loss descends.Thereby, by overlay film layer 421 and the chemical reactant layer 422 that mode of execution 4 is set on slide member, thereby, high reliability and high efficiency rotary plunger formula compressor can be provided.
Also have, about as the efficient aftermentioned of the rotary plunger formula compressor of the mode of execution 4 of above formation.
Next, the chemical reactant layer that connects airtight power 422 about the mother metal of the overlay film layer 421 that improves molybdenum disulfide and slide member describes with reference to Figure 15.Figure 15 is that expression is as the plotted curve of the material modified molybdenum disulfide of slip surface projection with the relation of amount of moisture that contains in the material and chemical reactant layer 422.Among Figure 15, transverse axis represents that molybdenum disulfide throws with the amount of moisture that contains in the material [ppm], and the longitudinal axis is illustrated in the thickness [nm] of the chemical reactant layer 422 that forms on the slip surface of slide member.
As shown in figure 15, can be interpreted as if the molybdenum disulfide projection contains by weight the moisture more than 5000ppm, the then rapid attenuation of thickness of the chemical reactant layer 422 of Xing Chenging with material.Thereby by molybdenum disulfide projection is suppressed to by weight below 5000ppm with the amount of moisture that contains in the material, thereby the chemical reactant layer 422 of thickness is stablized in formation, can guarantee the big power of connecting airtight between the mother metal of overlay film layer 421 and slide member.In addition, affirmation is by experiment, and the Mean particle diameter of throwing with material at molybdenum disulfide is below the 50 μ m, and projection pressure is the following scope of the above 3.0MPa of 0.5MPa, when the projection amount is the following scope of the above 300g/min of 100g/min, can guarantee the big power of connecting airtight.
Throw with the amount of moisture that contains in the material by reducing molybdenum disulfide, thereby, prevent because the cohesion of the molybdenum disulfide powder that the influence of moisture causes, in addition, by being that scope, projection amount below the above 3.0MPa of 0.5MPa is the scope projection molybdenum disulfide projection material below the above 300g/min of 100g/min at projection pressure, thereby the molybdenum disulfide powder can not condense, and can fully quicken.
Thereby, can will almost all supply with the kinetic energy that material produces by the projection of projection molybdenum disulfide to slide member.And, its kinetic energy is converted into heat energy, thereby, molybdenum disulfide projection material thermodiffusion on slide member, promote the reaction of molybdenum disulfide projection with material and slide member, thereby, between the overlay film layer 421 of molybdenum disulfide and slide member, form the chemical reactant layer 422 of the stable thickness that constitutes by iron, carbon, molybdenum, sulphur.
Like this chemical reactant layer 422 that forms, the effect of the tackiness agent between performance eccentric part 208 slide members such as grade and the overlay film layer 421 can stably improve the power of connecting airtight of overlay film layer 421 that solid solution has molybdenum disulfide and axle 211 slide members such as grade.Consequently think, can form the overlay film layer 421 that has the extremely strong power of connecting airtight with respect to the mother metal of slide member.
Also have, in the mode of execution 4, adopt the molybdenum disulfide projection of Mean particle diameter 8 μ m to use material, but, so long as the solid lubrication powder of Mean particle diameter below 50 μ m just can obtain same effect.When Mean particle diameter surpasses 50 μ m,, also often when its compressor operation, can't bring into play effect even then will throw pack into formation in the compressor of the molybdenum disulfide projection formed the overlay film layer with material slide member on the surface.Infer this be because, because the surface roughness on slide member surface worsens the effect that is difficult to the reduction of acquisition friction factor.
Along with becoming the development that can change, advance the low speedization of compressor day by day, particularly Metal Contact takes place in the more difficult establishment of fluid lubrication easily in the such Ultra-Low Speed of not enough 20Hz moves.Therefore, although the rotary plunger formula compressor about certain speed is illustrated in the mode of execution 4, but, by the slide member of employing mode of execution 4 in the compressor of Ultra-Low Speed action, thereby its effect shows more significantly.
Have again, in the mode of execution 4, be on the slip surface of the eccentric part 208 of axle 211, to form the overlay film layer 421 that solid solution has molybdenum disulfide, but, also can form, have again also and can on the both sides of eccentric part 208 and rotary plunger 216, form in the interior perimeter surface of rotary plunger 216.When on eccentric part 208 and rotary plunger 216 both sides, forming overlay film layer 421, obtain higher wearability.
In addition, in the mode of execution 4, the situation of the overlay film layer 421 of molybdenum disulfide is arranged is that example has been described in detail to form solid solution on the slide part surface of the eccentric part 208 of axle 211, but, also can be formed in and form overlay film layer 421, the formation of the rotation of retainer shaft 211 more efficiently on main bearing 214 with slip surface and the supplementary bearing 215.Have again, can certainly form overlay film layer 421, realize more superior effect the main shaft part 209 and main bearing 214 both sides, countershaft portion 210 and supplementary bearing 215 both sides that form slide part mutually.
In addition, in the compressor of mode of execution 4, on the rotary plunger 216 that mutually forms slide part and blade 217, main bearing 214 and blade 217, supplementary bearing 215 and blade 217, main bearing 214 and rotary plunger 216, supplementary bearing 215 and rotary plunger 216, cylinder 213 and blade 217, cylinder 213 and rotary plunger 216, and each slide part surface of rail 219 and oil supply spring 220, forming solid solution has under the situation of molybdenum disulfide projection with the overlay film layer 421 of material, also can obtain excellent effect.
Also have, in the embodiments of the present invention 4, as refrigeration agent 202 so long as R600a, R290 or contain their mix refrigerant or any one refrigeration agent among R134a, R152, R407C, R404A, the R410 just can obtain equal effect on slide part.
As more than, as illustrated in the embodiments of the present invention 4, can provide employing to form overlay film layer and chemical reactant layer, slide member that reliability is high as the projection of the material modified molybdenum disulfide of slip surface on the slide part surface with material, the compressor that this slide member is housed simultaneously can provide the device that has high reliability and can compress with high efficiency.
Also have, in the respective embodiments described above, described with the example that slide member is used for compressor, but, the present invention is not specific to compressor, just can be suitable for so long as carry out the slip surface of the member of sliding action, can reduce the friction factor of the slide member of the equipment that is suitable for significantly.
In addition, in the respective embodiments described above, be that the situation of metal is illustrated about slide member, but, the present invention is not defined in metal with slide member, can be suitable for too in members such as resin, glass, pottery.
Utilizability on the industry
As more than, the present invention can reduce coefficient of friction, the decrease slippage loss of slipper, Useful in having the equipment of slipper.

Claims (15)

1. a slip surface is material modified, its be contain the above molybdenum disulfide of 95 weight % and contain by weight for the following organic slip surface of 1500ppm material modified, wherein,
Material modified being projected onto of described slip surface forms the overlay film layer on the slip surface.
2. slip surface according to claim 1 is material modified, wherein,
The scope of the Mean particle diameter of molybdenum disulfide below 50 μ m more than the 1 μ m.
3. manufacture method that slip surface is material modified, wherein,
The material that contains molybdenum disulfide in heating below 450 ℃, make the organic compound combustion that described material contains remove described organic substance, obtaining to contain is that following described organic substance of 1500ppm and the slip surface that contains the above molybdenum disulfide of 95 weight % are material modified by weight.
4. using method that slip surface is material modified, wherein,
Containing the above molybdenum disulfide of 95 weight % and containing is that the following organic slip surface of 1500ppm is material modified by weight, is projected onto the overlay film layer that forms molybdenum disulfide on the slip surface with the state that is heated to more than 100 ℃.
5. slide member, wherein,
Described slide member forms the overlay film layer that solid solution has molybdenum disulfide by containing the molybdenum disulfide more than the 95 weight % and containing by weight projecting for the organic slip surface below the 1500ppm is material modified on the slip surface.
6. compressor, it is used for making the system of refrigerant cycle, wherein,
At least one member with slip surface uses the described slide member of claim 5.
7. compressor, it accommodates electric element in the seal container of store oil and compressing member carries out the refrigeration agent compression, wherein,
Described compressing member is a kind of reciprocal compressor structure, comprising:
Bent axle, it has the main shaft and the eccentric shaft of the rotor that is fixed with described electric element;
Bearing portion, it has supporting described rotor and make its thrust face that can rotate, and the main shaft of described bent axle is carried out axle support it can be rotated;
Cylinder block, it constitutes cylinder bore;
Piston, its to-and-fro motion in described cylinder bore;
Wrist pin, itself and described eccentric shaft parallel configuration and be fixed on the described piston; With
Connecting rod, it links described eccentric shaft and described piston by described wrist pin,
At least one of member that has slip surface in described bent axle, described bearing portion, described cylinder block, described piston, described wrist pin and the described connecting rod used the described slide member of claim 5.
8. compressor, it accommodates electric element in the seal container of store oil and compressing member carries out the refrigeration agent compression, wherein,
Described compressing member is a kind of rotary plunger formula compressing mechanism, comprising:
Axle, its have the rotor that is fixed with described electric element main shaft, from the eccentric part of the rotating shaft eccentric of described main shaft and from described eccentric part outstanding and with the countershaft of described spindle parallel;
Cylinder, its formation have the pressing chamber with the cylinder space of the rotating shaft coaxle of described axle;
Rotary plunger, itself and described eccentric part and roll in described pressing chamber movingly;
Blade, itself and described rotary plunger butt, and will be divided into high pressure side and low voltage side in the described pressing chamber;
Main bearing, it seals a side that is positioned at the electric element side of described cylinder, and the main shaft of described axle is carried out the axle supporting;
Supplementary bearing, it seals another side of described cylinder, and the countershaft of described axle is carried out the axle supporting;
The oil supply spring, it is fixed in described countershaft; With
Rail, it takes in described oil supply spring, and opening end is configured in the described oil,
The described slide member of at least one use claim 5 that has the member of slip surface in described axle, described cylinder, described rotary plunger, described blade, described main bearing, described supplementary bearing, described oil supply spring and the described rail.
9. a slip surface is material modified, its be contain the amount of moisture that contains in above molybdenum disulfide of 95 weight % and the molybdenum disulfide by weight for the following slip surface of 5000ppm material modified, wherein,
The material modified overlay film layer that forms molybdenum disulfide on the slip surface that is projected onto of described slip surface.
10. slip surface according to claim 9 is material modified, wherein,
Described slip surface is material modified to be the solid lubrication powder of the scope of Mean particle diameter below 50 μ m more than the 1 μ m of molybdenum disulfide.
11. using method that slip surface is material modified, to contain the amount of moisture that contains in above molybdenum disulfide of 95 weight % and the molybdenum disulfide and be the material modified overlay film layer that forms molybdenum disulfide on the slip surface that projects of the following slip surface of 5000ppm by weight, wherein
The scope of projection pressure below the above 3.0MPa of 0.5MPa that described slip surface is material modified, the scope of projection amount below the above 300g/min of 100g/min.
12. a slide member, wherein,
On the slip surface of the slide member that is made of metallic material, projection claim 9 or 10 described slip surfaces are material modified, form the overlay film layer that solid solution has molybdenum disulfide.
13. a compressor, it is used for making the system of refrigerant cycle, wherein,
At least one member with slip surface uses the described slide member of claim 12.
14. a compressor, it accommodates electric element in the seal container of store oil and compressing member carries out the refrigeration agent compression, wherein,
Described compressing member is a kind of reciprocal compressor structure, comprising:
Bent axle, it has the main shaft and the eccentric shaft of the rotor that is fixed with described electric element;
Bearing portion, it has supporting described rotor and make its thrust face that can rotate, and the main shaft of described bent axle is carried out axle support it can be rotated;
Cylinder block, it constitutes cylinder bore;
Piston, its to-and-fro motion in described cylinder bore;
Wrist pin, itself and described eccentric shaft parallel configuration and be fixed on the described piston; With
Connecting rod, it links described eccentric shaft and described piston by described wrist pin,
At least one of member that has slip surface in described bent axle, described bearing portion, described cylinder block, described piston, described wrist pin and the described connecting rod used the described slide member of claim 12.
15. a compressor, it accommodates electric element in the seal container of store oil and compressing member carries out the refrigeration agent compression, wherein,
Described compressing member is a kind of rotary plunger formula compressing mechanism, comprising:
Axle, its have the rotor that is fixed with described electric element main shaft, from the eccentric part of the rotating shaft eccentric of described main shaft and from described eccentric part outstanding and with the countershaft of described spindle parallel;
Cylinder, its formation have the pressing chamber with the cylinder space of the rotating shaft coaxle of described axle;
Rotary plunger, itself and described eccentric part and roll in described pressing chamber movingly;
Blade, itself and described rotary plunger butt, and will be divided into high pressure side and low voltage side in the described pressing chamber;
Main bearing, it seals a side that is positioned at the electric element side of described cylinder, and the main shaft of described axle is carried out the axle supporting;
Supplementary bearing, it seals another side of described cylinder, and the countershaft of described axle is carried out the axle supporting;
The oil supply spring, it is fixed in described countershaft; With
Rail, it takes in described oil supply spring, and opening end is configured in the described oil,
The described slide member of at least one use claim 12 that has the member of slip surface in described axle, described cylinder, described rotary plunger, described blade, described main bearing, described supplementary bearing, described oil supply spring and the described rail.
CNA2007101626900A 2006-10-16 2007-10-16 Sliding face modification material, method for producing sliding face modification material, method for using sliding face modification material, sliding members, and compressor Pending CN101165345A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103104438A (en) * 2011-11-11 2013-05-15 松下电器产业株式会社 Refrigerant compressor
CN103306930A (en) * 2012-03-08 2013-09-18 日立建机株式会社 Slantwise axial type hydraulic rotary machine and method for manufacturing same
CN110318053A (en) * 2018-03-28 2019-10-11 丰田自动车东日本株式会社 Sliding component and its manufacturing method
CN113167325A (en) * 2018-12-17 2021-07-23 大丰工业株式会社 Sliding member

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103104438A (en) * 2011-11-11 2013-05-15 松下电器产业株式会社 Refrigerant compressor
CN103104438B (en) * 2011-11-11 2016-04-06 松下电器产业株式会社 Coolant compressor
CN103306930A (en) * 2012-03-08 2013-09-18 日立建机株式会社 Slantwise axial type hydraulic rotary machine and method for manufacturing same
CN110318053A (en) * 2018-03-28 2019-10-11 丰田自动车东日本株式会社 Sliding component and its manufacturing method
CN113167325A (en) * 2018-12-17 2021-07-23 大丰工业株式会社 Sliding member
CN113167325B (en) * 2018-12-17 2023-05-30 大丰工业株式会社 Sliding member

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