CN104047834A - Piston ring for rolling piston compressor of air conditioner and preparation method thereof - Google Patents
Piston ring for rolling piston compressor of air conditioner and preparation method thereof Download PDFInfo
- Publication number
- CN104047834A CN104047834A CN201410317320.XA CN201410317320A CN104047834A CN 104047834 A CN104047834 A CN 104047834A CN 201410317320 A CN201410317320 A CN 201410317320A CN 104047834 A CN104047834 A CN 104047834A
- Authority
- CN
- China
- Prior art keywords
- piston ring
- plating
- preparation
- air
- chemical plating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Chemically Coating (AREA)
- Compressor (AREA)
Abstract
The invention belongs to the field of surface engineering and discloses a piston ring for a rolling piston compressor of an air conditioner and a preparation method thereof. An alloy coating is plated on a piston ring base, and zirconia nanofibers are doped in the alloy coating. The preparation method comprises the following steps that (1) pretreatment is carried out on the surface of the piston ring base, and the pretreatment aims to carry out deoiling and rust removal on the base, so that the surface of the base can be smooth and easy to plate; (2) chemical plating is carried out on the surface of the piston ring base, wherein the zirconia nanofibers are added to plating solutions for chemical plating, the pretreated piston ring base is completely steeped into the plating solutions with the zirconia nanofibers added for chemical plating, and stirring is carried out during the chemical plating. The preparation method for the piston ring for the rolling piston compressor of the air conditioner is simple in process, convenient to operate, safe and environmentally friendly, the abrasive resistance of the piston ring for the rolling piston compressor of the air conditioner can be improved remarkably, cost is saved effectively, and the effective utilizing rate of resources and energy is improved.
Description
Technical field
The invention belongs to surface engineering field, particularly a kind of piston ring for air-conditioning rolling piston compressor and preparation method thereof.
Background technique
Along with building industry, industrial and commercial facility and people are more and more higher for the requirement of the comfort level of life, the demand of air-conditioning increases day by day.As the maximum country of world population, China has become family's national ranks larger to the demand of air-conditioning, and the market potential of the air-conditioning rolling piston for air condition compressor of high abrasion will be huger.
It is that on piston compressor, a pair of very important pairing is secondary that air-conditioning piston type compressor cylinder coordinates with piston ring.In piston compressor working procedure, wearing and tearing between piston ring and cylinder wall are modal faults, and inordinate wear can cause in-cylinder pressure to decline and not reach between working pressure, the attenuation of machine oil oil film, piston ring and cylinder and form boundary lubrication or dry friction.Cylinder wall surface after wearing and tearing is dolioform at centerline direction, and cross section is oval, and size is vertically larger than substantially horizontal, thereby causing that piston is in operation beats, and produces string oil, gas leakage, and air displacement is reduced.The wearing and tearing of cylinder wall surface have aggravated the wearing and tearing of piston ring, even cause fracture, and the wearing and tearing of piston ring are especially ruptured and can be caused erosion of wall to be accelerated, the vicious circle of unstable wear.Along with the increase of operating time, this is changed to matching secondary cooperation, good gas tightness progressively worsens.High load, high parameter, high automation degree make the operating conditions of piston compressor harsher, and wear problem becomes increasingly conspicuous becomes a key factor that affects piston compressor functional reliability and working life.Improve its frictional behaviour, improve the antiwear and antifriction ability of piston type compressor cylinder, can set about from material aspect, the one, change material component or use new material, Domestic Air-condition rolling piston all adopts and adds Cr at present, Ni, the high alloy iron of the alloying elements such as Mo, refrigeration industry compressor air-conditioning rolling piston material property regulation is Japan: in JIS5G5501 grey cast iron FC300, add Mo, Ni, Cr composition is also heat-treated, or China is GB HT300, add Cr, Ni, the low-alloy cast iron of Mo (alloy total amount is below 3%), quench, matrix after tempering is that this standard of martensite+alloy carbide is below 0.3% to the content regulation of phosphorus, the 2nd, adopt surface engineering technology to carry out modification to material surface, give the ability that material and product surface thereof are resisted environmental activity, as improve material and goods are corrosion-resistant, resistance to high temperature oxidation, wear resistant friction reducing, lubricated and anti-fatigue performance etc., thereby extend its working life, there is material-saving, energy-conservation, efficient, high-quality, environmental protection, low cost and other advantages.Surface engineering technology includes plating, chemical plating, thermal spraying, paint spraying, hot dipping, vapor deposition etc.
Electroless plating technology, according to principle of oxidation and reduction, forms the technology of the coat of metal by strong reductant by metal ion reduction at workpiece surface.Electroless plating technology does not need energising, utilizes chemical reaction to apply coating at matrix surface, so surface can adhere to more evenly, can not produce variable thickness with strong and weak variation of electric current; And as long as the place that plating solution is impregnated into can easily apply, can not worry complex parts matrix plating leakage problem.Along with the development of electroless plating technology technique is ripe, it is functional more and more stronger, and application area is also more and more wider, in every field, has all obtained important application.
Electroless plating technology is different according to the kind of plated metal, can be divided into chemical nickel plating, chemical gilding, chemical silvering, electroless copper, chemical palladium-plating, composite chemical plating etc.Along with scientific and technological progress and social development, people are also more and more higher to the requirement of material, and single chemical nickel plating wear resistant coating cannot meet people's demand.So people begin one's study, composite deposite is to obtaining better wear-resisting property.The common method of typical case is in coating, to add the particles such as SiC, diamond, aluminium oxide to improve the hardness of coating, improves thus its wear-resisting property.Another kind method be add inorfil come coating to strengthen toughness reinforcing, such as alumina fibre etc.And no matter utilize particle to strengthen or fiber reinforcement, rarely seen have the zirconium oxide of adding to carry out modification to it, more do not utilize zirconium oxide nanofiber coating to be carried out to the trial of modification.What is more important, in traditional oxide ceramics, zirconic thermal expansion coefficient and metallic matrix are the most approaching, this just guaranteed utilize fiber coating is strengthened toughness reinforcing in, the adhesive strength of coating and matrix is further improved.
Summary of the invention
For the poor present situation of existing air-conditioning rolling piston compressor piston ring wear resistance, the technical problem that quasi-solution of the present invention is determined is to design a kind of piston ring for air-conditioning rolling piston compressor and preparation method thereof.Method provided by the invention can effectively improve the wear resistance of piston ring, and simple to operation.
A kind of piston ring for air-conditioning rolling piston compressor provided by the invention, plating one deck alloy coat on piston ring matrix, is characterized in that: doped zirconia nanofiber in described alloy coat.
Described alloy coat is nickel phosphor alloy coating.
The present invention also provides a kind of preparation method of the piston ring for air-conditioning rolling piston compressor, and the method comprises the steps:
1. the pretreatment of piston ring matrix surface, pretreated object is that matrix is deoiled and eliminated rust, and makes the level and smooth polishing of matrix surface, is easy to plating;
2. the chemical plating of piston ring matrix surface;
It is characterized in that: in the chemical plating step of piston ring matrix surface, in the plating solution of chemical plating, add zirconium oxide nanofiber, pretreated piston ring matrix thorough impregnation is carried out to chemical plating to having added in the plating solution of zirconium oxide nanofiber, and stir when chemical plating.
In chemical plating process, the object stirring is the hydrogen in discharge course of reaction, and prevents the breakage of nanofiber; The present invention further provides applicable mixing speed, and speed of agitator is 900～1200r/min.
The present invention further provides applicable zirconium oxide nanofiber addition, and in chemical plating fluid, the addition of zirconium oxide nanofiber is 0.5g/L～3.0g/L.Preferred addition is 0.8g/L～3.0g/L, most preferably 3.0g/L.The amount that addition crosses that I haven't seen you for ages and cause the zirconium oxide nanofiber in final coating very little, makes the utilization ratio of zirconium oxide nanofiber too low, and not obvious to the raising of coating hardness and wear-resisting property.Addition is too much, cannot make whole zirconium oxide nanofibers be distributed in uniformly in plating solution, has all the time partial oxidation zirconium nanofiber to be deposited on container bottom with the form of precipitation, causes the waste of raw material.
In said method, the smooth glossiness plating piece of the smooth surface after plating can be put into electric furnace of resistance type, under 200～400 ℃ of temperature conditions, be incubated 1～3 hour, more cooling with stove, take out plating piece.Be incubated and process the hardness that can increase coating, reduce the wear rate of coating, improve the wear-resisting property of coating.
Method of the present invention is applicable to the plating solution of plated nickel phosphorus alloy, the plating solution that is chemical plating is the plating solution in order to plated nickel phosphorus alloy, adds zirconium oxide nanofiber in plating solution, stirs, carry out chemical plating, exemplify a kind of plating solution of air-conditioning rolling piston compressor piston ring matrix surface chemical plating below;
In this plating solution, main salt nickelous sulfate is 28～36g/L, reducing agent inferior sodium phosphate is 24～32g/L, complexing agent lactic acid is that 18～25g/L, complexing agent propionic acid are 6～10g/L, buffer agent anhydrous sodium acetate is 15～22g/L, stabilizer thiocarbamide is 1～2mg/L, and Surfactant SDS is 5～10mg/L.
Above-mentioned plating solution preparation method can be as follows: weighed respectively each material quality that chemical plating bath is used, each raw material is dissolved in respectively in distilled water, stir on dissolving limit, limit, the reductant solution of preparation is added and contains main salt under stirring condition, complexing agent, buffer agent, in the solution of stabilizer and surface active agent, mixed overall solution volume is controlled at 3/4 left and right of obtain solution total volume, main salt nickelous sulfate is 28～36g/L, reducing agent inferior sodium phosphate is 24～32g/L, complexing agent lactic acid is 18～25g/L+ propionic acid, 6～10g/L, buffer agent anhydrous sodium acetate is 15～22g/L, stabilizer thiocarbamide is 1～2mg/L, Surfactant SDS is 5～10mg/L, add a certain amount of zirconium oxide nanofiber, then with distilled water regulator solution, arrive volume required.
In chemical plating process, every 20～30min, drip ammoniacal liquor to keep pH to be stabilized in 4.8～5.4 scopes, bath temperature is 80～90 ℃, plating time is 1～2h.
The pretreatment of piston ring matrix surface, pretreated object, for matrix is deoiled and to be eliminated rust, makes the level and smooth polishing of matrix surface, is easy to plating; Pretreatment comprises the steps:
1. will after air-conditioning rolling piston compressor piston ring matrix polishing, put into anhydrous alcohol ultrasonic cleaning, dry 10min at 80 ℃～100 ℃.
2. cleaned piston ring matrix in is 1. carried out to pretreatment as follows: (85～90 ℃ of alkali cleanings, 5～8min) → hot water cleans (70～80 ℃, 2min) → cold water cleans (room temperature, 2min) → weak acid activation (dilute sulfuric acid activation, 2～4s, general there is even tiny bubble when matrix) (70～80 ℃ of → hot water cleanings, 2min) → cold water cleans (room temperature, each component and the content thereof of the alkali degreasing solution that 2min), wherein alkali cleaning is used are: 0.25～0.35mol/L Na
2cO
3, 0.025～0.03mol/LNa
3pO
412H
2o, 0.5～1mol/L NaOH, 0.0025～0.003mol/L neopelex.
The present invention has provided a kind of preparation method of zirconium oxide nanofiber, and the method is as follows:
1. 10%～16% (mass percent) polyvinyl-pyrrolidone (PVP) is dissolved in to anhydrous alcohol, form after clear solution, add the dimethyl sulfoxide (DMSO) (DMSO) with quality such as anhydrous alcohols, add again appropriate zirconium oxychloride powder, after ultrasonic processing 10～20min, obtained the precursor that electrostatic spinning is used;
2. the precursor in is 1. sucked to teflon needle tubing 3～5ml, put metal needle, be fixed on electrospinning device, in ambient temperature, it is 15 ℃～25 ℃, ambient humidity is 35%～65%, curing distance is 14～19cm, and teflon needle tubing and syringe needle horizontal cross angle of inclination are under 14～16 ° of conditions, to carry out spinning to prepare PVP/ZrClO
2composite fiber loads positive pole on syringe needle, receives aluminium foil as negative pole, carries out electrostatic spinning and obtain primary PVP/ZrClO under the voltage of 15～30kV
2fiber;
3. by primary PVP/ZrClO
2fiber carries out calcination processing at 600 ℃～800 ℃ under air atmosphere in tube furnace, and insulation 1～2h, is cooled to room temperature naturally, obtains ZrO
2nanofiber.
During preparation Static Spinning precursor solution, zirconium oxychloride powder is 1: 10～1: 100 with solution quality ratio.
When carrying out chemical plating, zirconium oxide nanofiber prepared by the method that adopts the present invention to provide, gained plating piece superior performance, plating piece coating has good wear-resisting property.
Beneficial effect of the present invention is:
Novelty zirconium oxide nanofiber is added to plating solution, utilize fiber reinforced principle to strengthen coating toughness reinforcing, further improve the wear-resisting property of coating.
(2) chemical nickel phosphorus plating layer, in the successful coating of air-conditioning rolling piston compressor piston ring matrix surface, can effectively improve air-conditioning rolling piston compressor piston ring surface performance, for the performance improvement of high alloy iron matrix workpiece provides new thinking.
(3) the improvement of air-conditioning rolling piston compressor piston ring surface wear resistance, can effectively expand the application area of identical material workpiece, extends the working life of air-conditioning rolling piston compressor piston ring.
(4) the method has improved the effective rate of utilization of resource, the energy, and safety and environmental protection is pollution-free.
Preparation method's technique simple operations of the present invention facilitates and safety and environmental protection, can obviously improve the wear resistance of air-conditioning rolling piston compressor piston ring, effectively cost-saving, improves resource, effective utilization rate of energy.
Accompanying drawing explanation
Fig. 1 is the PVP/ZrClO that in embodiment 2, Static Spinning makes
2the scanning electron microscope of protofibre (SEM) picture;
Fig. 2 is zirconium oxide nanofiber scanning electron microscope (SEM) picture after sintering in embodiment 2;
Fig. 3 is ZrO in embodiment 2
2the power spectrum EDX spectrogram on/Ni-P alloy layer surface;
Fig. 4 is ZrO in embodiment 2
2the scanning electron microscope at/Ni-P alloy layer and piston ring interface (SEM) picture;
Fig. 5 is ZrO in embodiment 2
2scanning electron microscope (SEM) picture on/Ni-P alloy layer surface;
Fig. 6 is ZrO in embodiment 2
2scanning electron microscope (SEM) picture of/Ni-P alloy layer wear surface.
Embodiment
Adopt chemical plating method, the air-conditioning rolling piston compressor piston ring matrix of take is sample, by surperficial alkali cleaning and acid etching, and electrostatic spinning, the techniques such as chemical plating, invent a kind of wear-resisting air-conditioning rolling piston compressor piston ring and preparation method thereof.
The following examples can make those skilled in the art more fully understand the present invention, but do not limit the present invention in any way.
Embodiment 1
For a piston ring for air-conditioning rolling piston compressor, plating layer of Ni-P alloy layer on piston ring matrix, doped zirconia nanofiber in described Ni-P alloy layer.
The preparation method of the above-mentioned piston ring for air-conditioning rolling piston compressor, the method step is as follows:
(1) air-conditioning rolling piston compressor piston ring matrix surface pretreatment;
1. will after air-conditioning rolling piston compressor piston ring matrix polishing, put into anhydrous alcohol ultrasonic cleaning, dry 10min at 100 ℃.
2. cleaned piston ring matrix in is 1. carried out to pretreatment as follows: (90 ℃ of alkali cleanings, 5min) → hot water cleans (70 ℃, 2min) → cold water cleans (room temperature, 2min) → weak acid activation (dilute sulfuric acid activation, 4s, general there is even tiny bubble when matrix) (70 ℃ of → hot water cleanings, 2min) → cold water cleans (room temperature, 2min), wherein, alkali degreasing solution is used in alkali cleaning, and each component and the content thereof of the alkali degreasing solution that alkali cleaning is used are: 28g/L Na
2cO
3, 8g/L Na
3pO
412H
2o, 28g/L NaOH, 1.0g/L neopelex.
(2) spinning of zirconium oxide nanofiber
1. polyvinyl-pyrrolidone (PVP) is dissolved in to anhydrous alcohol with 16% mass fraction, add the dimethyl sulfoxide (DMSO) (DMSO) with quality such as anhydrous alcohols, after obtaining quality and being the clear solution of 20g, add 1g zirconium oxychloride powder, after ultrasonic processing 20min, obtained the precursor that electrostatic spinning is used.
2. the precursor in is 1. sucked to plastic injector 5ml, put metal needle, be fixed on electrospinning device.In ambient temperature, be 15 ℃, ambient humidity is 35%, and solidifying distance is 14cm, and teflon needle tubing and syringe needle horizontal cross angle of inclination are under 14 ° of conditions, to carry out spinning to prepare PVP/ZrClO
2composite fiber loads positive pole on syringe needle, receives aluminium foil as negative pole, carries out electrostatic spinning under 25KV voltage, obtains primary PVP/ZrClO
2fiber, by spin protofibre in tube furnace, under air atmosphere, at 800 ℃, carry out calcination processing, insulation 1h, is cooled to room temperature naturally, acquisition zirconium oxide nanofiber.
(3) air-conditioning rolling piston compressor piston ring matrix surface chemical plating;
1. weigh respectively good each material quality, be specially: main salt nickelous sulfate 14g, reducing agent inferior sodium phosphate 15g, complexing agent lactic acid 9g, complexing agent propionic acid 3g, buffer agent anhydrous sodium acetate 7.5g, stabilizer thiocarbamide 0.5mg, Surfactant SDS 2.5mg.Each raw material is dissolved in respectively in 30ml distilled water, stir on dissolving limit, limit, the reductant solution of preparation is added and contains main salt under stirring condition, complexing agent, buffer agent, in the solution of stabilizer and surface active agent, mixed overall solution volume is controlled at 3/4 left and right of obtain solution total volume (500ml), add 0.4g zirconium oxide nanofiber, then with distilled water regulator solution, arrive volume required, in plating solution, main salt nickelous sulfate is 28g/L, reducing agent inferior sodium phosphate is 30g/L, complexing agent lactic acid is 18g/L+ propionic acid 6g/L, buffer agent anhydrous sodium acetate is 15g/L, stabilizer thiocarbamide is 1mg/L, Surfactant SDS is 5mg/L, zirconium oxide nanofiber is 0.8g/L,
2. pretreated piston ring matrix thorough impregnation is carried out to chemical plating in plating solution, and stir when chemical plating, speed of agitator is 1000r/min, to discharge the hydrogen producing in course of reaction, and prevent the breakage of nanofiber, in process, every 30min, drip ammoniacal liquor to keep pH to be stabilized in 4.8 left and right, bath temperature is 90 ℃, and plating time is 2h;
3. the satisfactory plating piece after plating is put into electric furnace of resistance type, under 400 ℃ of temperature conditions, 2h is processed in insulation, cooling with stove, takes out plating piece.
Through test, the surface hardness of prepared sample is increased to 991HV by the 238Hv of matrix, and friction and wear test is 10N in load, rotating speed 200r/min, and under the condition of 15 minutes test times, test result is: wear rate is by 1.62 * 10 of matrix
-4g/s is down to 3.25 * 10
-7g/s, the coating wear rate that does not add zirconium oxide nanofiber is correspondingly 3.36 * 10
-7g/s.
Embodiment 2
For a piston ring for air-conditioning rolling piston compressor, plating layer of Ni-P alloy layer on piston ring matrix, doped zirconia nanofiber in described Ni-P alloy layer.
The preparation method of the above-mentioned piston ring for air-conditioning rolling piston compressor, the method step is as follows:
(1) air-conditioning rolling piston compressor piston ring matrix surface pretreatment;
1. will after air-conditioning rolling piston compressor piston ring matrix polishing, put into anhydrous alcohol ultrasonic cleaning, dry 10min at 80 ℃.
2. cleaned piston ring matrix in is 1. carried out to pretreatment as follows: (90 ℃ of alkali cleanings, 5min) → hot water cleans (80 ℃, 2min) → cold water cleans (room temperature, 2min) → weak acid activation (dilute sulfuric acid activation, 4s, general there is even tiny bubble when matrix) (80 ℃ of → hot water cleanings, 2min) → cold water cleans (room temperature, 2min), wherein, alkali degreasing solution is used in alkali cleaning, and each component of alkali degreasing solution and content thereof are 30g/L Na
2cO
3, 10g/L Na
3pO
412H
2o, 30g/L NaOH, 1.0g/L neopelex.
(2) spinning of zirconium oxide nanofiber
1. polyvinyl-pyrrolidone (PVP) is dissolved in to anhydrous alcohol with 10% mass fraction, add again the dimethyl sulfoxide (DMSO) (DMSO) with quality such as anhydrous alcohols, after obtaining quality and being the clear solution of 20g, add 0.5g zirconium oxychloride powder, after ultrasonic processing 20min, obtained the precursor that electrostatic spinning is used.
2. 1. middle precursor sucks plastic injector 5ml, put metal needle, be fixed on electrospinning device, in ambient temperature, it is 25 ℃, ambient humidity is 65%, solidifying distance is 19cm, and teflon needle tubing and syringe needle horizontal cross angle of inclination are under 16 ° of conditions, to carry out spinning to prepare PVP/ZrClO
2composite fiber loads positive pole on syringe needle, receives aluminium foil as negative pole, carries out electrostatic spinning under 30KV voltage, obtains primary PVP/ZrClO
2fiber, by spin protofibre in tube furnace, under air atmosphere, at 600 ℃, carry out calcination processing, insulation 2h, is cooled to room temperature naturally, acquisition zirconium oxide nanofiber.
(3) air-conditioning rolling piston compressor piston ring matrix surface chemical plating;
1. weigh respectively good each material quality, be specially: main salt nickelous sulfate 15g, reducing agent inferior sodium phosphate 13.5g, complexing agent lactic acid 10g, complexing agent propionic acid 5g, buffer agent anhydrous sodium acetate 10g, stabilizer thiocarbamide 0.5mg, Surfactant SDS 2.5mg.Each raw material is dissolved in respectively in distilled water, stir on dissolving limit, limit, the reductant solution of preparation is added and contains main salt under stirring condition, complexing agent, buffer agent, in the solution of stabilizer and surface active agent, mixed overall solution volume is controlled at 3/4 left and right of obtain solution total volume (about 500ml), add 1.5g zirconium oxide nanofiber, then with distilled water regulator solution, arrive volume required, in plating solution, main salt nickelous sulfate is 30g/L, reducing agent inferior sodium phosphate is 27g/L, complexing agent lactic acid is 20g/L+ propionic acid 10g/L, buffer agent anhydrous sodium acetate is 20g/L, stabilizer thiocarbamide is 1mg/L, Surfactant SDS is 5mg/L, zirconium oxide nanofiber is 3.0g/L,
2. pretreated piston ring matrix thorough impregnation is carried out to chemical plating in plating solution, and stir when chemical plating, speed of agitator is 950r/min, to discharge the hydrogen producing in course of reaction, and prevents the breakage of nanofiber; In process, every 25min, drip ammoniacal liquor to keep pH to be stabilized in 5.1 left and right, bath temperature is 88 ℃, and plating time is 2h;
3. the satisfactory plating piece after plating is put into electric furnace of resistance type, under 350 ℃ of temperature conditions, 2h is processed in insulation, cooling with stove, takes out plating piece.
Through test, the surface hardness of prepared sample is increased to 1340Hv by the 238Hv of matrix, and friction and wear test is 10N in load, and rotating speed 200r/min carries out under the condition of test time 15min, and test result is: wear rate is by 1.62 * 10 of matrix
-4g/s is down to 1.1 * 10
-7g/s, the wear rate of the coating that does not add zirconium oxide nanofiber is correspondingly 3.36 * 10
-7g/s.
Fig. 1 is the PVP/ZrClO that in embodiment 2, Static Spinning makes
2the stereoscan photograph of protofibre, as can be seen from the figure the diameter of protofibre is 100～300nm.Fig. 2 is zirconium oxide nanofiber scanning electron microscope (SEM) picture after sintering in embodiment 2, as can be seen from the figure, after sintering, fiber diameter reduces compared with protofibre diameter, between 10-80nm, it is coarse that surface becomes, due to PVP decomposition removal.Fig. 3 is ZrO in embodiment 2
2the power spectrum EDX spectrogram on/Ni-P alloy layer surface can be seen the feature peak position that has occurred Zr, O, Ni, P element from spectrogram, illustrates in Ni-P alloy and is distributed with zirconium oxide.Fig. 4 is scanning electron microscope (SEM) picture at coating and piston ring interface in embodiment 2, and as can be seen from the figure the thickness of coating is about 19 μ m, between coating and matrix in conjunction with better.Fig. 5 is ZrO in embodiment 2
2scanning electron microscope (SEM) picture on/Ni-P alloy layer surface, coating surface presents typical Ni-P alloy " cauliflower " Organizational Structure as we can see from the figure.Fig. 6 is ZrO in embodiment 2
2scanning electron microscope (SEM) picture of/Ni-P alloy layer wear surface, as can be seen from the figure there is the cut of a rule in Ni-P alloy layer wear surface, groove mark is low weight, there is a small amount of fiber to expose, because the high hardness of Ni-P alloy and the rough extensive damage of wear surface that can stop crackle etc. to cause because of fiber, make coating show good wear resistance.
Claims (10)
1. for a piston ring for air-conditioning rolling piston compressor, plating one deck alloy coat on piston ring matrix, is characterized in that: doped zirconia nanofiber in described alloy coat.
2. the piston ring for air-conditioning rolling piston compressor according to claim 1, is characterized in that: described alloy coat is nickel phosphor alloy coating.
3. the preparation method of the piston ring for air-conditioning rolling piston compressor described in claim 1 or 2, the method comprises the steps:
(1). the pretreatment of piston ring matrix surface, pretreated object is that matrix is deoiled and eliminated rust, and makes the level and smooth polishing of matrix surface, is easy to plating;
(2). the chemical plating of piston ring matrix surface;
It is characterized in that:
In the chemical plating step of piston ring matrix surface, in the plating solution of chemical plating, add zirconium oxide nanofiber, pretreated piston ring matrix thorough impregnation is carried out to chemical plating to having added in the plating solution of zirconium oxide nanofiber, and stir when chemical plating.
4. the preparation method of the piston ring for air-conditioning rolling piston compressor according to claim 3, is characterized in that: in chemical plating process, speed of agitator is 900～1200r/min.
5. the preparation method of the piston ring for air-conditioning rolling piston compressor according to claim 3, is characterized in that: in chemical plating fluid, the addition of zirconium oxide nanofiber is 0.5g/L～3.0g/L.
6. the preparation method of the piston ring for air-conditioning rolling piston compressor according to claim 3, it is characterized in that: the smooth glossiness plating piece of the smooth surface after plating is put into electric furnace of resistance type, under 200～400 ℃ of temperature conditions, be incubated 1～3 hour, more cooling with stove, take out plating piece.
7. the preparation method of the piston ring for air-conditioning rolling piston compressor according to claim 3, it is characterized in that: the plating solution of chemical plating is the plating solution in order to plated nickel phosphorus alloy, in plating solution, main salt nickelous sulfate is 28～36g/L, reducing agent inferior sodium phosphate is 24～32g/L, and complexing agent lactic acid is that 18～25g/L, complexing agent propionic acid are 6～10g/L, and buffer agent anhydrous sodium acetate is 15～22g/L, stabilizer thiocarbamide is 1～2mg/L, and Surfactant SDS is 5～10mg/L;
In chemical plating process, every 20～30min, drip ammoniacal liquor to keep pH to be stabilized in 4.8～5.4 scopes, bath temperature is 80～90 ℃, plating time is 1～2h.
8. the preparation method of the piston ring for air-conditioning rolling piston compressor according to claim 3, is characterized in that: the pretreatment of piston ring matrix surface comprises the steps:
1. will after air-conditioning rolling piston compressor piston ring matrix polishing, put into anhydrous alcohol ultrasonic cleaning, dry 10min at 80 ℃～100 ℃.
2. cleaned piston ring matrix in is 1. carried out to pretreatment as follows: alkali cleaning → hot water cleaning → cold water cleaning → weak acid activation → hot water cleaning → cold water cleans, each component and the content thereof of the alkali degreasing solution that wherein alkali cleaning is used are: 0.25～0.35mol/L Na
2cO
3, 0.025～0.03mol/L Na
3pO
412H
2o, 0.5～1mol/L NaOH, 0.0025～0.003mol/L neopelex.
9. the preparation method of the piston ring for air-conditioning rolling piston compressor according to claim 3, is characterized in that the preparation method of zirconium oxide nanofiber is as follows:
1. 10%～16% (mass percent) polyvinyl-pyrrolidone (PVP) is dissolved in to anhydrous alcohol, form after clear solution, add the dimethyl sulfoxide (DMSO) (DMSO) with quality such as anhydrous alcohols, add again appropriate zirconium oxychloride powder, after ultrasonic processing 10～20min, obtained the precursor that electrostatic spinning is used;
2. the precursor in is 1. sucked to teflon needle tubing 3～5ml, put metal needle, be fixed on electrospinning device, in ambient temperature, it is 15 ℃～25 ℃, ambient humidity is 35%～65%, curing distance is 14～19cm, and teflon needle tubing and syringe needle horizontal cross angle of inclination are under 14～16 ° of conditions, to carry out spinning to prepare PVP/ZrClO
2composite fiber loads positive pole on syringe needle, receives aluminium foil as negative pole, carries out electrostatic spinning and obtain primary PVP/ZrClO under the voltage of 15～30kV
2fiber;
3. by primary PVP/ZrClO
2fiber carries out calcination processing at 600 ℃～800 ℃ under air atmosphere in tube furnace, and insulation 1～2h, is cooled to room temperature naturally, obtains ZrO
2nanofiber.
10. the preparation method of the piston ring for air-conditioning rolling piston compressor according to claim 9, is characterized in that: during preparation Static Spinning precursor solution, zirconium oxychloride powder is 1: 10～1: 100 with solution quality ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410317320.XA CN104047834B (en) | 2014-07-03 | 2014-07-03 | A kind of piston ring for air-conditioning rolling piston compressor and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410317320.XA CN104047834B (en) | 2014-07-03 | 2014-07-03 | A kind of piston ring for air-conditioning rolling piston compressor and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104047834A true CN104047834A (en) | 2014-09-17 |
| CN104047834B CN104047834B (en) | 2016-08-24 |
Family
ID=51501117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410317320.XA Active CN104047834B (en) | 2014-07-03 | 2014-07-03 | A kind of piston ring for air-conditioning rolling piston compressor and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104047834B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108048164A (en) * | 2017-12-08 | 2018-05-18 | 合肥工业大学 | Face coat cooperates with the method for improving internal combustion engine tribological property with nano lubricating agent |
| CN108570668A (en) * | 2018-05-22 | 2018-09-25 | 江苏昊科汽车空调有限公司 | High heat insulation and wear resistance composite membrane of vehicle-mounted air conditioner compressor vortex disk and preparation method thereof |
| CN108708854A (en) * | 2018-05-29 | 2018-10-26 | 江苏昊科汽车空调有限公司 | The compressor of air conditioner of volume-variable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1776019A (en) * | 2005-11-18 | 2006-05-24 | 邹志尚 | Hard composite nano ceramic film cladding for use on engine piston ring sarface |
| US20080311306A1 (en) * | 1997-08-22 | 2008-12-18 | Inframat Corporation | Superfine ceramic thermal spray feedstock comprising ceramic oxide grain growth inhibitor and methods of making |
| CN101532151A (en) * | 2009-04-22 | 2009-09-16 | 合肥工业大学 | Electric deposition nickel pottery plating solution and preparing method thereof |
| CN102817017A (en) * | 2012-09-03 | 2012-12-12 | 天津工业大学 | Preparation method for surface modification of bakelite groove drum |
| CN202867019U (en) * | 2012-08-29 | 2013-04-10 | 芜湖鼎恒材料技术有限公司 | Piston ring with nano ceramic coating |
| US20140225329A1 (en) * | 2011-10-31 | 2014-08-14 | Kabushiki Kaisha Riken | Piston ring |
-
2014
- 2014-07-03 CN CN201410317320.XA patent/CN104047834B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080311306A1 (en) * | 1997-08-22 | 2008-12-18 | Inframat Corporation | Superfine ceramic thermal spray feedstock comprising ceramic oxide grain growth inhibitor and methods of making |
| CN1776019A (en) * | 2005-11-18 | 2006-05-24 | 邹志尚 | Hard composite nano ceramic film cladding for use on engine piston ring sarface |
| CN101532151A (en) * | 2009-04-22 | 2009-09-16 | 合肥工业大学 | Electric deposition nickel pottery plating solution and preparing method thereof |
| US20140225329A1 (en) * | 2011-10-31 | 2014-08-14 | Kabushiki Kaisha Riken | Piston ring |
| CN202867019U (en) * | 2012-08-29 | 2013-04-10 | 芜湖鼎恒材料技术有限公司 | Piston ring with nano ceramic coating |
| CN102817017A (en) * | 2012-09-03 | 2012-12-12 | 天津工业大学 | Preparation method for surface modification of bakelite groove drum |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108048164A (en) * | 2017-12-08 | 2018-05-18 | 合肥工业大学 | Face coat cooperates with the method for improving internal combustion engine tribological property with nano lubricating agent |
| CN108570668A (en) * | 2018-05-22 | 2018-09-25 | 江苏昊科汽车空调有限公司 | High heat insulation and wear resistance composite membrane of vehicle-mounted air conditioner compressor vortex disk and preparation method thereof |
| CN108708854A (en) * | 2018-05-29 | 2018-10-26 | 江苏昊科汽车空调有限公司 | The compressor of air conditioner of volume-variable |
| CN108708854B (en) * | 2018-05-29 | 2020-10-13 | 江苏昊科汽车空调有限公司 | Air conditioner compressor with variable capacity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104047834B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102554385B (en) | Brazing and casting process of metal ceramic composite lining board | |
| CN103103597B (en) | A kind of titanium alloy self-lubricating composite membrane and preparation method thereof | |
| CN102936706B (en) | A kind of Carbon fiber cloth-titanium alloy composite material and preparation method thereof | |
| CN104047834A (en) | Piston ring for rolling piston compressor of air conditioner and preparation method thereof | |
| CN107475710A (en) | A kind of Ni of sandwich construction3Al based self-lubricating materials and preparation method thereof | |
| CN102304739B (en) | Micro-arc oxidation preparation method of high wear resistant and corrosion resistant self-lubricating ceramic layer and electrolyte thereof | |
| CN105950914B (en) | A kind of new Ni using hollow over spherical powder as lubrication phase3Al based self-lubricating materials and preparation method | |
| CN110029387B (en) | Wear-resistant graphene modified micro-arc oxidation coating for aluminum alloy drill rod and preparation method thereof | |
| CN103205667A (en) | Thermal spraying composite coating material for piston ring and preparation method of thermal spraying composite coating material | |
| CN102392277B (en) | Preparation method of nickel-molybdenum-rare earth plating | |
| CN201538067U (en) | Metal piece | |
| CN105088129B (en) | The preparation method of micro-nano texturing titanium nitride solid lubricant film | |
| CN103834866A (en) | High-strength high-wear resistance high-temperature self-lubricating composite material and preparation method thereof | |
| CN106762631A (en) | A kind of scroll compressor thermomechanical components and its manufacture method and scroll compressor | |
| CN104148267A (en) | Thermal-insulating wear-resistant air conditioner rolling piston compressor piston ring and preparation method thereof | |
| CN106947935B (en) | A kind of method that thermal spraying prepares wear-resistant coating | |
| CN105714172A (en) | Corrosion-resistant grounding grid metal ceramic coating material and preparation device and method thereof | |
| CN112048752A (en) | Preparation method and application of cBN/Ni-Mo titanium alloy blade tip protective coating | |
| CN105200364A (en) | Method for generating ceramic coating | |
| CN202732711U (en) | Antifriction bearing | |
| CN110885995A (en) | Processing method of surface texture solid lubricating coating | |
| CN105038110B (en) | A kind of electrochemical modification carbon cloth enhancing friction material and preparation method thereof | |
| CN104388933B (en) | A kind of insulating and wear-resistant air-conditioning rolling piston compressor piston ring and preparation method thereof | |
| CN103642559B (en) | A kind of compressor molybdenum-disulfide radical composite solid lubricant material and preparation method thereof | |
| CN104264096A (en) | Ni60B-Al2O3 nano-coating and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |