CN102812147A - Self-lubricated coating and method - Google Patents

Self-lubricated coating and method Download PDF

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Publication number
CN102812147A
CN102812147A CN2011800166285A CN201180016628A CN102812147A CN 102812147 A CN102812147 A CN 102812147A CN 2011800166285 A CN2011800166285 A CN 2011800166285A CN 201180016628 A CN201180016628 A CN 201180016628A CN 102812147 A CN102812147 A CN 102812147A
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China
Prior art keywords
bearing
porous layer
substrate
hole
metal
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CN2011800166285A
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CN102812147B (en
Inventor
I.萨武
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Nuovo Pignone SpA
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Nuovo Pignone SpA
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/06—Lubrication
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/123—Spraying molten metal
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/60—Ferrous alloys, e.g. steel alloys

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Sliding-Contact Bearings (AREA)
  • Lubricants (AREA)
  • Compressor (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

Provided are a coating and a method for providing a self-lubricated coating on a substrate. The method includes spraying with an inert gas at least a layer of liquid metal on the substrate; adding a compound to the liquid metal while being sprayed on the substrate; forming a porous layer on the substrate that includes the metal and the compound, where the porous layer has plural pores; heating the porous layer to open the pores; flooding the open pores with a greasing substance such that part of the greasing substance is stored in one or more pores; and cooling the porous layer to close the pores and trap the greasing substance inside the pores.

Description

Self-lubricating coat in use and method
Technical field
The embodiment of theme disclosed herein relates generally to the method and system that is used to provide self-lubricating coat in use, and more specifically relates to the mechanism that is used to provide self-lubricating coat in use and technological.
Background technology
Between the several years, along with the increase of fossil oil price, all respects relevant with the processing of fossil oil are more and more paid close attention in the past.In addition, more and more pay close attention to produce more efficient and reliable motor, turbine, compressor etc. so that produce better and distribute based on the gentle product of oil.
Such machine generally includes fixing part, stator, and turning unit, rotor.Rotor is configured to respect to the stator rotation to realize compression medium, produce electric energy or to change electric energy in the mechanical energy one.Rotor need rotate with respect to stator with minimized friction and in certain temperature range.Because the lasting rotation and the weight (this weight can and increase friction between 20 kg and 20,000 kg) thereof of rotor, thereby produce big calorimetric.The main heat that in the bearing of support rotor, occurs.
Therefore, can use the various mechanism that are used for cooling bearing.A kind of such mechanism is to make medium (for example oil) circulation and remove excessive heat through cooling oil between rotor and bearing continuously.It is oil circulation to use pump to force.Yet if pump lost efficacy, oil stops to flow and therefore stopping to remove the heat that forms at the interface between rotor and bearing.Under these situations, possibly there is not oil to be present between rotor and the bearing at the interface, this has determined bearing temperature to be increased to the point that other member to rotor and/or bearing or this machine is caused damage.
Thereby if the operator of machine or dedicated system not this unusual condition of quick identification stop machine, then entire machine may be badly damaged, thereby causes the interruption of the related whole process of machine, this is expensive and do not expect in oil and gas industry.Even quick identification the faulty condition of machine; Sometimes also can not stop affected machine immediately because this machine be the cooperation of a plurality of machines process a part and under the situation of the safety of not disturbing other machine, to make a machine quick shutdown be impossible.
Therefore, such system and method is provided with expectation, its moment that machine can't appropriately be worked and machine for example since the high temperature that occurs during in oil pump failure and between impaired moment the operator to machine the time buffering is provided.
Summary of the invention
According to an exemplary embodiment, there is a kind of method that is used on substrate, providing self-lubricating coat in use.This method comprises: utilize rare gas element on substrate, to spray one deck liquid metal at least; When on substrate, spraying compound is added into liquid metal; On the substrate that comprises metal and compound, form porous layer, wherein porous layer has a plurality of holes; The heating porous layer is to open hole; Fill with the hole of opening with lubricating substance, make the part of lubricating substance be housed in one or more in the porous crack; And the cooling porous layer is trapped in the hole with closed hole and with lubricating substance.
According to another exemplary embodiment, there is a kind of method that is used for operating turbine, this turbo has the security mechanism that is used for bearing.This method comprises: make the stator rotation of rotor with respect to turbo; Utilize the bearings rotor, bearing comprises at least one porous layer, and this at least one porous layer comprises the compound of metal and a plurality of holes of formation and is housed in the lubricating substance in the hole; And when rotor rotates, lubricant is provided to bearing, make the service temperature substantially constant of bearing.
According to another exemplary embodiment, there is a kind of turbo, this turbo comprises: stator, it is configured to fix; Rotor, it is configured to rotate with respect to stator; Bearing, the rotation that it is configured to support rotor and is convenient to rotor; And self-lubricating coat in use, it is located on bearing or the rotor.Self-lubricating coat in use comprises at least one porous layer, and this at least one porous layer comprises the compound of metal and a plurality of holes of formation and is housed in the lubricating substance in the hole; And, when the service temperature of bearing is lower than preset value, closed hole, thus hold back lubricating substance.
Description of drawings
The accompanying drawing of incorporating in the specification sheets and constituting the part of this specification sheets shows one or more embodiment, and explains these embodiment with describing.In the accompanying drawings:
Fig. 1 is the synoptic diagram with machine of rotor and stator;
Fig. 2 is the synoptic diagram according to the substrate with self-lubricating coat in use of exemplary embodiment;
Fig. 3 is the diagram according to the porous layer of exemplary embodiment;
Fig. 4 is the schema of method that is used on substrate, providing self-lubricating coat in use that illustrates according to exemplary embodiment; And
Fig. 5 is that this turbo has the security mechanism that is used for bearing according to the schema of the method that is used for operating turbine of exemplary embodiment.
Embodiment
The following description of exemplary embodiment is with reference to accompanying drawing.Identical label is represented identical or similar elements in different accompanying drawings.The detailed description of hereinafter does not limit the present invention.But scope of the present invention is defined by the following claims.For simplicity, about the term and the structure of compressor following embodiment has been discussed.Yet, next the embodiment that discusses is not limited to compressor, but can be applicable to comprise other system by the rotor of bearings.
The expression of mentioning to " embodiment " or " embodiment " in whole specification sheets combines described specific characteristic, structure or the characteristic of an embodiment to be included among at least one embodiment of disclosed theme.Therefore, may not refer to identical embodiment at each position phrase " in one embodiment " of whole specification sheets or the appearance of " in one embodiment ".In addition, specific characteristic, structure or characteristic can any suitable method be combined among one or the more embodiment.
According to an exemplary embodiment; Rotor, bearing or their both parts have been applied self-lubricating coat in use, storage lubricant and be increased at machine temperature and discharge this lubricant when surpassing certain threshold temperature when this self-lubricating coat in use is formed at machine and turns round with normal temps.
According to an exemplary embodiment shown in Figure 1, compressor 10 comprises and being configured to respect to rotor 14 rotating rotor 12 etc.Rotor 12 for example at two ends by one or more multiple bearing 16 support.Various bearings are as known in the art, and any bearing in these bearings can be used for support rotor 12.One of bearing is exemplified as shaft bearing, and it is described in United States Patent(USP) No. 6,361, and in 215, the whole contents of this patent is incorporated herein by reference.
Shaft bearing 16 uses or more liners (pad) 18 of support rotor 12, and oil injects at 20 places, interface between liner 18 and the rotor 12 to reduce friction and/or to cool off this interface.Pump (not shown) can be used for pump oil and passes 20 places, interface that the passage 22 in each liner arrives between liner 18 and the rotor 12.If oil fails to be sent to interface 20, then this temperature at the interface will be increased to above acceptable value, this possibly damage bearing 16, rotor 12 or they both.
According to an exemplary embodiment shown in Figure 2, the two a part of rotor 12 or bearing 16 any or they can be applied self-lubricating layer 24.Self-lubricating layer 24 can as shown in Figure 2ly be deposited on the substrate 26, and substrate 26 can be one of rotor 12 and/or bearing 16.When self-lubricating layer 24 is deposited on 12 last times of rotor, expect that this layer is deposited as directly towards bearing 16.
Layer 24 can comprise the base material 28 that is deposited on the substrate 24.Base material can comprise the metal that is used for bearing, for example graphitic cast iron, stainless steel, carbon steel, nonferrous alloy etc.In an application, base material is a plasticity, for example comprises the material with low carbon content and high Fe, Ni or cobalt contents.In Another Application, base material does not comprise Cr.In another application, base material can comprise non-ferrous metal, makes that base material is a plasticity.Base material can deposit through method as known in the art.For example, base material can be sprayed on the substrate.Yet in an application, substrate material layer 28 is not the part of layer 24.Deposition substrate material layer 28 is to guarantee the better adhesion between self-lubricating layer 24 and the substrate 26.
Provide the porous layer 30 of self-lubricating function to be formed on the substrate material layer 28 or directly be formed on the substrate 26.Porous layer 30 can comprise metal and the compound that promotes that hole forms in porous layer 30.Metal can be one or more of the metal that is used for bearing, for example graphitic cast iron, stainless steel, carbon steel etc., and this depends on layer hardness, the bearing load of application, expectation.Compound can be powdered graphite, molybdenumdisulphide (MoS 2), tungsten sulfide (WS 2) in one or more.Metal as liquid spray on substrate material layer 28.For example, electric arc or plasma spraying can be used for spraying liquid metal and compound.Be in rare gas element under the pressure and not only can be used for transmitting molten metal, but also can be used for compound is embedded in the molten metal from rifle or other device of being used for coated substrates.For example, rare gas element can be nitrogen (N).
Porous layer 30 is being to have a plurality of holes 32 that run through metal and compound 34 distributions shown in Fig. 3.The quantity of a plurality of holes 32 depends on many variablees.For example, the quantity of hole can be depending on liquid metal and sprays to the temperature on the substrate, the pressure of rare gas element, the rifle that sprays liquid metal and the distance between the substrate, used concrete metal, used particular compound etc.In an application, the thickness of self-lubricating layer 30 is between several microns and several millimeters.
In case porous layer 30 is formed on the substrate 26 and the temperature of assembly is reduced to (for example, 25 ℃) about room temperature, the then closing of pores, for example, if porous layer 30 is immersed in the liquid bath, then this liquid of very small amount gets into the hole of layer 30.Yet if layer 30 exposes (for example, submergence) to being in the pyritous oil bath with substrate 26, the hole 32 of layer 30 opens and oil begins to fill with hole.High temperature range can be from 80 ℃ to 500 ℃, and this for example depends on the type (synthetic or nonsynthetic etc.) of oil.Use oil as an example, but any lubricant all can be used for packing layer 30 partly hole partly or entirely.
Substrate 26 is cooled to room temperature with the sealing hole then with layer 30, makes the lubricant that is absorbed be housed in the hole 32.In the machine that preceding text are discussed one or more middle uses have this substrate of self-lubricating layer 30 then.Therefore; When this machine can't be between rotor and bearing at the interface oil is provided the time; Temperature at the interface is increased to and surpasses the temperature that the hole make self-lubricating layer 30 is opened, and this has determined the at the interface release lubricant of porous layer 30 beginnings between rotor and bearing.
This self-lubricating layer 30 depends on its size and in bearing and/or epitrochanterian distribution, can to the operator of machine the provide several minutes safety operation of (if not several hours), although the major oil of this machine supply mechanism failure.Like this, the operator has makes whole processing line shut down time necessary with controlled way, and does not damage the safety of other machine that constitutes this processing line.
Though can on conscious, thick self-lubricating layer 30 be provided,, find that thick-layer is easy to ftracture and therefore the shorter life-span is arranged so that the longer supply of lubricant is provided.In addition, the cracking in the thick-layer allows the more Zao effusion of expection of lubricant ratio and also can endanger the adhesion of porous layer to substrate.On the contrary, thin layer is owing to possibly preserve insufficient lubricant but do not expect.Therefore, the appropriate thickness of self-lubricating layer 30 depends on the type of machine, the weight of rotor, the quantity of liner and the quantity of bearing etc.
According to exemplary embodiment shown in Figure 4, there is a kind of method that is used on substrate, providing self-lubricating coat in use.This method comprises: step 400, and utilize gas on substrate, to spray one deck liquid metal at least; Step 402 is added into liquid metal with compound when on substrate, spraying; Step 404 forms porous layer on the substrate that comprises metal and compound, wherein porous layer has a plurality of holes; Step 406, the heating porous layer is to open hole; Step 408 is filled with hole with lubricating substance, makes the part of lubricating substance be housed in one or more in the porous crack; And step 410, the cooling porous layer is trapped in the hole with closed hole and with lubricating substance.
Should be pointed out that the gas that is used to deposit liquid metal can be rare gas element.Yet,, can use N in order to deposit non-iron layer 2Gas is because N 2More cheap.And, N 2Gas can provide more plasticity to porous layer, and this is desired.N 2Gas ratio argon gas or pressurized air are better, because this gas has been avoided the oxidation of liquid metal interalloy element, and also do not change the composition of settled layer.
According to an exemplary embodiment shown in Figure 5, exist a kind of bearing that is used in the turbo that the method for security mechanism is provided.This method comprises: step 500 makes the stator rotation of rotor with respect to turbo; Step 502 is utilized the bearings rotor, and bearing comprises at least one porous layer, and at least one porous layer comprises the compound of metal and a plurality of holes of formation and preserves the lubricating substance in hole; And step 504,, rotor lubricant is provided when rotating to bearing, make the service temperature substantially constant of bearing.
Disclosed exemplary embodiment provides the system and method that is used for when the special use supply of lubricant was lost efficacy, providing lubricant.Should understand, this description is not intended to limit the present invention.On the contrary, exemplary embodiment intention contains and is included in substituting in the spirit and scope of the present invention that are defined by the claims, modification and equivalent.In addition, in the detailed description of exemplary embodiment, many details have been set forth, so that the complete understanding of the present invention that requires protection to be provided.Yet it will be apparent to those skilled in the art that not to have putting into practice various embodiment under the situation of this type of detail.
Although described the characteristic and the key element of the exemplary embodiment that is proposed in an embodiment with particular combination, each characteristic or key element can be used with various combinations under the situation of using or be with or without further feature disclosed herein and element under the situation of further feature that does not have embodiment and key element separately.
This written description uses the example of disclosed theme to make any technician of this area can put into practice the present invention, comprises making and using any device or system and carry out any method of incorporating into.The patentable scope of this theme is defined by the claims, and can comprise other example that those skilled in the art expect.This other example intention within the scope of the claims.

Claims (10)

1. method that is used on substrate, providing self-lubricating coat in use, said method comprises:
Utilize gas on said substrate, to spray one deck liquid metal at least;
When on said substrate, spraying compound is added into said liquid metal;
Form porous layer comprising on the said substrate of said metal and said compound, wherein, said porous layer has a plurality of holes;
Heat said porous layer to open said hole;
Fill with the said hole of opening with lubricating substance, make the part of said lubricating substance be housed in one or more in the porous crack; And
Cooling off said porous layer is trapped in the said hole with the said hole of closure and with said lubricating substance.
2. method according to claim 1 is characterized in that, said liquid metal is to be used for one of metal of bearing: graphitic cast iron, stainless steel, carbon steel or nonferrous alloy.
3. method according to claim 1 and 2 is characterized in that, said compound is powdered graphite, molybdenumdisulphide (MoS 2), tungsten sulfide (WS 2) or their one of combination.
4. according to each the described method in the aforementioned claim, it is characterized in that, also comprise:
Before spraying, on said substrate, base material is provided, said base material comprises low carbon content and high Fe, Ni or cobalt contents or plasticity non-ferrous metal, makes said porous layer be formed on the said base material to adhere to said substrate better.
5. according to each the described method in the aforementioned claim, it is characterized in that, realize said heating through said porous material is immersed in the said lubricating substance that is in preset temperature.
6. according to each the described method in the aforementioned claim, it is characterized in that said substrate is the bearing of compressor.
7. according to each the described method in the aforementioned claim, it is characterized in that said gas comprises nitrogen (N).
8. method that is used for operating turbine, said turbo has the security mechanism that is used for bearing, and said method comprises:
Make the stator rotation of axle with respect to said turbo;
Utilize the said axle of bearings, said bearing comprises at least one porous layer, and said at least one porous layer comprises the compound of metal and a plurality of holes of formation and is housed in the lubricating substance in the said hole; And
To said bearing lubricant is provided in said when rotation axle, makes the service temperature substantially constant of said bearing.
9. method according to claim 8 is characterized in that, also comprises:
Said lubricant can't be provided;
Increase the service temperature of said bearing; And
Open the hole of said at least one porous layer, make the lubricating substance of being preserved leave said hole and lubricated said bearing.
10. turbo comprises:
Stator, it is configured to fix;
Axle, it is configured to respect to said stator rotation;
Bearing, the rotation that it is configured to support said axle and is convenient to said axle; And
Self-lubricating coat in use, it is located on said bearing or the said axle,
Wherein, said self-lubricating coat in use comprises at least one porous layer, and said at least one porous layer comprises the compound of metal and a plurality of holes of formation and is housed in the lubricating substance in the said hole; And
When the service temperature of said bearing is lower than preset value, the said closing of pores, thus hold back said lubricating substance.
CN201180016628.5A 2010-04-06 2011-04-01 Self-lubricated coating and method Expired - Fee Related CN102812147B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITCO2010A000014A IT1399157B1 (en) 2010-04-06 2010-04-06 SELF-LUBRICATING COATING AND METHOD
ITCO2010A000014 2010-04-06
PCT/EP2011/055123 WO2011124534A1 (en) 2010-04-06 2011-04-01 Self-lubricated coating and method

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CN102812147A true CN102812147A (en) 2012-12-05
CN102812147B CN102812147B (en) 2015-06-17

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US (1) US20130202405A1 (en)
EP (1) EP2556179A1 (en)
JP (1) JP5820463B2 (en)
KR (1) KR20130040790A (en)
CN (1) CN102812147B (en)
AU (1) AU2011237981A1 (en)
BR (1) BR112012025269A2 (en)
CA (1) CA2794792A1 (en)
IT (1) IT1399157B1 (en)
MX (1) MX2012011628A (en)
RU (1) RU2012142135A (en)
WO (1) WO2011124534A1 (en)

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CN106086766A (en) * 2016-07-26 2016-11-09 中国科学院兰州化学物理研究所 A kind of preparation method of high wear-resistant low-friction coefficient thermal Sperayed Ceramic Coatings
CN111919041A (en) * 2018-03-12 2020-11-10 日产自动车株式会社 Bearing component
CN117612795A (en) * 2024-01-22 2024-02-27 华东交通大学 Liquid metal patterning method, patterned liquid metal material and circuit

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RU2012142135A (en) 2014-05-27
CA2794792A1 (en) 2011-10-13

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