CN106222656A - Soft or hard for bush material surface replaces composite coating and preparation method thereof - Google Patents
Soft or hard for bush material surface replaces composite coating and preparation method thereof Download PDFInfo
- Publication number
- CN106222656A CN106222656A CN201610712259.8A CN201610712259A CN106222656A CN 106222656 A CN106222656 A CN 106222656A CN 201610712259 A CN201610712259 A CN 201610712259A CN 106222656 A CN106222656 A CN 106222656A
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- Prior art keywords
- coating
- bush material
- soft
- hard
- material surface
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Classifications
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- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
- C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
- C23C28/341—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one carbide layer
Abstract
The invention provides a kind of soft or hard for bush material surface and replace composite coating and preparation method thereof, described composite coating includes Cu coating, WC coating and the MoS outwards set gradually by bush material surface2Coating.Flame-spraying is used to be sequentially prepared Cu coating, WC coating on bush material surface；Then suspension spray is used to prepare MoS in WC coating2Coating, obtains described composite coating.The present invention has following beneficial effect: by preparing soft or hard alternate coatings on bush material, improves bearing shell wear resistant friction reducing performance, improves bearing shell bearing capacity, improves bearing shell embedded performance, thus improve bearing shell working life and anti-lock performance.
Description
Technical field
The invention belongs to metal surface field of engineering technology, be specifically related to a kind of soft or hard for bush material surface alternately
Composite coating and preparation method thereof.
Background technology
Ordinary copper Alloy bearing liner coefficient of friction high-wearing feature is not strong, and embeddability is poor, easy locking after working long hours.Excellent
Friction mechanism performance is the essential condition of long-life bearing shell, therefore extends bearing shell copper alloy working life mainly from anti-friction wear-resistant
Can carry out.Research the most both at home and abroad shows wear resistant friction reducing coating many uses novel synthetic material, and material is rare and expensive, and
Common single antifriction, three layers of soft or hard alternate coatings of anti-wear performance material composition are not the most studied.
The material possessing wear resistant friction reducing dual function at present mostly is the new material of synthesis type, expensive and synthesis technique
Complicated.Conventional material performance is single.Use composite coating technology can effectively combine the advantage of single coating material, the most rationally select
Select material carrying out three layers of soft or hard alternate coatings of coating formation arranged evenly is novel research contents.
In prior art, the open a kind of bearing shell coating material of patent documentation CN 104893450A and spraying coating process, described painting
Layer material is made up of following material by weight: polytetrafluoroethylene 3%, molybdenum bisuphide 8%, silicon carbide ceramics 10%, graphite
10%, surplus is organic solvent.But, this design coating is single coating, increases with the operating mode time when coating crack produces
Crackle can be expanded rapidly, thus causes coating failure.And soft or hard replaces composite coating, soft coating wrap up hard particles, be firmly coated with
Layer improves bearing capacity, has cushioning effect between coating, can effectively reduce and slow down crackle and produce.CN103216530A discloses
A kind of bearing shell with composite high-molecular antifriction coat, described wear-reduced coating is by poly-four that percentage by weight is 5～10%
The molybdenum bisuphide of the Graphene of the graphite of the tungsten disulfide of fluorothene, 3～7%, 6～28%, 1～5%, 2～4%, 1～3%
The titanium oxide of the pottery of the corundum of the corundum of CNT, 2～6%, 1～5%, 1～3%, 6～15%, 5～8%
The acrylic resin of the epoxy resin of fluorinated polyimide resin, 4～10%, 3～20% of fluorographite, 3～16%, 11～
The N-Methyl pyrrolidone of 45% and 0～8% surface treatment agent for powder composition.Due to MoS2 thermal coefficient of expansion and matrix material
Difference is relatively big, and the frictional heat when bearing shell works, under thermal environment and shear action, coating is easily peeled off.And the design is by Cu
Coating, WC coating are to MoS2 coating transition, and each material thermal expansion coefficient difference is less, and Gradient Effect can reduce by thermal coefficient of expansion
The disbonding problem that difference causes.
Summary of the invention
For defect of the prior art, the invention provides the most compound painting of a kind of soft or hard for bush material surface
Layer and preparation method thereof.Axle is improved by using conventional cheap material to prepare wear resistant friction reducing coating at bearing shell copper alloy surface
Watt friction mechanism performance.
It is an object of the invention to be achieved through the following technical solutions:
The invention provides a kind of soft or hard for bush material surface and replace composite coating, including by bush material surface
Cu coating, WC coating and the MoS outwards set gradually2Coating.
Preferably, described Cu coating layer thickness be 15-50 μm, WC coating layer thickness be 15-50 μm, MoS2Coating layer thickness is 15-
50μm；Composite coating gross thickness is less than 100 μm.
Present invention also offers a kind of soft or hard for bush material surface and replace the preparation method of composite coating, including with
Lower step:
A1, bush material is carried out blasting treatment after, clean, dry；
A2, will dry after bush material be preheated to 150-200 DEG C after, use flame-spraying on bush material surface successively
Preparation Cu coating, WC coating；
A3, in WC coating use suspension spray prepare MoS2Coating；
A4, by with three layer coating bush material clean, dry, obtain described composite coating.
Preferably, the roughness of the bush material after described blasting treatment is RZ 25-100 μm.
Preferably, in step A2, described preparation Cu coating specifically uses following methods: regulation flame-spraying oxygen pressure is
0.8～1Mpa, acetylene pressure is 0.07Mpa, and flame-spraying distance is 250mm, and spray gun translational speed is 150mm/s, angle of spray
Degree be 65～85 ° to bearing shell material spraying Cu powder.
Preferably, the size of described Cu powder is 20 μm, and coating thickness is 15-50 μm.
Preferably, in step A2, described preparation WC coating specifically uses following methods: regulation flame-spraying oxygen pressure is
2.5Mpa, acetylene pressure is 0.05Mpa, and flame-spraying distance is 150mm, and spray gun translational speed is 200mm/s, and spray angle is
65～85 ° to bearing shell material spraying WC powder.
Preferably, the size of described WC powder is 30 μm, and coating thickness is 15-50 μm.
Preferably, in step A3, described spray distance is 100mm, and spray gun translational speed is 100mm/s, and spray angle is
65-85°。
Preferably, in step A3, described suspension includes each component of following weight/mass percentage composition: MoS2Powder 20%-
40%；Epoxy resin 5%-8%；Organic siliconresin 3%-5%；Sb2O31%-5%；WS21%-5%；Surplus is mixed solution.
Preferably, described MoS2Size of powder particles is 10 μm；Described mixed solution includes each component of following mass percent:
Toluene 10-20%；Acetone 15-25%；Ethylene glycol 20-30%, butanone 25-35%.
Preferably, in described step A1, clean concrete employing: in acetone soln, carry out ultrasonic vibration clean 20min；Institute
Stating drying condition is: dry 30min in 80 DEG C of baking ovens.
Preferably, in described step A4, clean concrete employing: in acetone soln, carry out ultrasonic vibration clean 10min；Institute
Stating drying condition is: dry 30min in 80 DEG C of baking ovens.
In the present invention, described Cu coating uses flame spraying method to prepare, Cu coating thermal coefficient of expansion and bush material phase
Closely, the adhesive property of coating and bush material can be improved, improve anchoring strength of coating.Described WC coating uses flame spraying method
Preparation, described WC is hard ceramic material, and hardness is high, can improve bush material abrasion resistance and load-bearing performance.Described MoS2It is coated with
Layer uses suspension spray method to prepare, described MoS2For self-lubricating soft material, MoS2Coating can wrap up hard coat abrasive particle, fall
The coefficient of friction of low coating, makes bearing shell have self-lubricating property.
Compared with prior art, the present invention has following beneficial effect: by preparing soft or hard on bush material alternately
Coating, improves bearing shell wear resistant friction reducing performance, improves bearing shell bearing capacity, improves bearing shell embedded performance, thus improves axle
Watt working life and anti-lock performance.
Accompanying drawing explanation
By the detailed description non-limiting example made with reference to the following drawings of reading, the further feature of the present invention,
Purpose and advantage will become more apparent upon:
Fig. 1 is that the soft or hard for bush material surface of the present invention replaces composite coating structure figure；
Wherein, 1-Cu coating；2-WC coating；3-MoS2Coating；
Fig. 2 is the PVvalue testing result of bush material.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following example will assist in the technology of this area
Personnel are further appreciated by the present invention, but limit the present invention the most in any form.It should be pointed out that, the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement.These broadly fall into the present invention
Protection domain.
Embodiment 1
Present embodiments provide a kind of soft or hard for bush material surface and replace composite coating, as it is shown in figure 1, include by
Cu coating, WC coating and the MoS that bush material surface outwards sets gradually2Coating.Described Cu coating layer thickness is 15-50 μm, WC
Coating layer thickness is 15-50 μm, MoS2Coating layer thickness is 15-50 μm.Described composite coating gross thickness is less than 100 μm.
The present embodiment additionally provides a kind of soft or hard for bush material surface and replaces the preparation method of composite coating, including
Following steps:
1. inner surface of bearing bush carries out blasting treatment and makes roughness reach RZ 25-100 μm, is put into by bush material after spraying
Acetone soln carries out ultrasonic vibration and cleans 10min, after cleaning, bush material is placed in 80 DEG C of baking ovens drying 30min.
2. utilize flame-spraying to prepare Cu soft coating.First bearing shell is preheated to 150-200 DEG C.Regulation flame-spraying oxygen pressure
Power is 0.8～1Mpa, and acetylene pressure is 0.07Mpa, and flame-spraying distance is 250mm, and spray gun translational speed is 150mm/s, spray
It is coated with angle and is 65-85 °.Cu size of powder particles is 20 μm, and Cu is soft metal, first prepares one layer of Cu soft coating on bearing shell surface.
3. utilize flame-spraying to prepare WC coating.First by the bearing shell substrate preheating with Cu coating to 150-200 DEG C.Regulation
Flame-spraying oxygen pressure is 2.5Mpa, and acetylene pressure is 0.05Mpa, and flame-spraying distance is 150mm, and spray gun translational speed is
200mm/s, spray angle is 65-85 °.WC powder size is 30 μm, and WC is hard ceramic material, prepares one layer at Cu coating surface
WC hard conating.
4. utilize suspension spray method to prepare MoS2Coating.First by the bearing shell substrate preheating with Cu coating and WC coating extremely
150-200℃.Spray distance is 100mm, and spray gun translational speed is 100mm/s, and spray angle is 65-85 °.MoS2Size of powder particles
It is 10 μm, MoS2Powder mixture ratio is 20%-40%；Epoxy resin 5%-8%；Organic siliconresin 3%-5%；Sb2O31%-5%；
WS21%-5%；Mixed solution is surplus.Mixed solution proportioning is toluene 10-20%；Acetone 15-25%；Ethylene glycol 20-
30%, butanone 20-35%.Being incubated 2 hours after spraying in an oven, temperature is 200 DEG C.MoS2For soft material, at Cu coating table
One layer of MoS is prepared in face2Soft coating.
5. the bearing shell with three layer coating is put into and acetone soln carries out ultrasonic vibration cleaning 20min, by axle after cleaning
Watt material is placed in 80 DEG C of baking ovens drying 30min, finally forms soft or hard on bearing shell surface and replaces composite coating.
Spraying soft or hard prepared by the present embodiment replaces the coefficient of friction of the bush material of composite coating as in figure 2 it is shown, detect
Equipment is U.S. UTM-2 (CETR) multifunction friction wear testing machine, tests load 10N, speed 15mm/s, time 10min.Knot
Fruit shows, compared with the bush material of uncoated soft or hard alternately composite coating, coefficient of friction significantly reduces.
The bearing shell matrix maximum equivalent of spraying soft or hard alternately composite coating prepared by the present embodiment is 61.638Mpa,
And bearing shell matrix maximum equivalent without composite coating is 85.867Mpa under the same terms, soft or hard alternately composite coating can have
Effect reduces bearing shell matrix equivalent stress.Simulated conditions: ANSYS Workbench 15.0. load 5N, speed 10mm/s, display is dynamic
Mechanics Simulation.Result shows, compared with the bush material of uncoated soft or hard alternately composite coating, bearing capacity significantly improves.
The concrete application approach of the present invention is a lot, and the above is only the preferred embodiment of the present invention.It should be pointed out that, above
Embodiment is merely to illustrate the present invention, and is not limited to protection scope of the present invention.Common skill for the art
For art personnel, under the premise without departing from the principles of the invention, it is also possible to make some improvement, these improvement also should be regarded as this
Bright protection domain.
Claims (10)
1. the soft or hard for bush material surface replaces composite coating, it is characterised in that include by bush material surface to
Cu coating, WC coating and the MoS set gradually outward2Coating.
2. the soft or hard for bush material surface as claimed in claim 1 replaces composite coating, it is characterised in that described Cu is coated with
Layer thickness be 15-50 μm, WC coating layer thickness be 15-50 μm, MoS2Coating layer thickness is 15-50 μm；Described composite coating gross thickness
Less than 100 μm.
3. the soft or hard for bush material surface as claimed in claim 1 replaces a preparation method for composite coating, and it is special
Levy and be, comprise the following steps:
A1, bush material is carried out blasting treatment after, clean, dry；
A2, will dry after bush material be preheated to 150-200 DEG C after, use flame-spraying be sequentially prepared on bush material surface
Cu coating, WC coating；
A3, in WC coating use suspension spray prepare MoS2Coating；
A4, by with three layer coating bush material clean, dry, obtain described composite coating.
4. the soft or hard for bush material surface as claimed in claim 3 replaces the preparation method of composite coating, and its feature exists
In, in step A2, described preparation Cu coating specifically uses following methods: regulation flame-spraying oxygen pressure is 0.8～1Mpa, second
Alkynes pressure is 0.07Mpa, and flame-spraying distance is 250mm, and spray gun translational speed is 150mm/s, spray angle be 65～85 ° right
Bush material spraying Cu powder.
5. the soft or hard for bush material surface as claimed in claim 4 replaces the preparation method of composite coating, and its feature exists
In, the size of described Cu powder is 20 μm, and coating thickness is 15-50 μm.
6. the soft or hard for bush material surface as claimed in claim 3 replaces the preparation method of composite coating, and its feature exists
In, in step A2, described preparation WC coating specifically uses following methods: regulation flame-spraying oxygen pressure is 2.5Mpa, acetylene
Pressure is 0.05Mpa, and flame-spraying distance is 150mm, and spray gun translational speed is 200mm/s, spray angle be 65～85 ° countershaft
Watt material spraying WC powder.
7. the soft or hard for bush material surface as claimed in claim 6 replaces the preparation method of composite coating, and its feature exists
In, the size of described WC powder is 30 μm, and thickness is 15-50 μm.
8. the soft or hard for bush material surface as claimed in claim 3 replaces the preparation method of composite coating, and its feature exists
In, in step A3, described spray distance is 100mm, and spray gun translational speed is 100mm/s, and spray angle is 65-85 °.
9. the soft or hard for bush material surface as claimed in claim 3 replaces the preparation method of composite coating, and its feature exists
In, in step A3, described suspension includes each component of following weight/mass percentage composition: MoS2Powder 20%-40%；Epoxy resin
5%-8%；Organic siliconresin 3%-5%；Sb2O31%-5%；WS21%-5%；Surplus is mixed solution.
10. the soft or hard for bush material surface as claimed in claim 9 replaces the preparation method of composite coating, and its feature exists
In, described MoS2Size of powder particles is 10 μm；Described mixed solution includes each component of following mass percent: toluene 10-20%；
Acetone 15-25%；Ethylene glycol 20-30%, butanone 25-35%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712259.8A CN106222656B (en) | 2016-08-23 | 2016-08-23 | Soft or hard alternately composite coating and preparation method thereof for bush material surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712259.8A CN106222656B (en) | 2016-08-23 | 2016-08-23 | Soft or hard alternately composite coating and preparation method thereof for bush material surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106222656A true CN106222656A (en) | 2016-12-14 |
| CN106222656B CN106222656B (en) | 2019-11-19 |
Family
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| CN201610712259.8A Expired - Fee Related CN106222656B (en) | 2016-08-23 | 2016-08-23 | Soft or hard alternately composite coating and preparation method thereof for bush material surface |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107513684A (en) * | 2017-07-17 | 2017-12-26 | 中国兵器科学研究院宁波分院 | Self-lubricating composite coating, coating production and the product with the coating |
| CN108950550A (en) * | 2018-07-24 | 2018-12-07 | 首都航天机械有限公司 | MoS is used in Space Pyrotechnics Devices separation2/ GIC MULTILAYER COMPOSITE solid lubricant coating and preparation method |
| CN114959617A (en) * | 2022-06-28 | 2022-08-30 | 西安工程大学 | Ag/WS 2 DLC coating and method for producing the same |
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| US20080056631A1 (en) * | 2006-08-28 | 2008-03-06 | Roller Bearing Company Of America, Inc. | Tungsten carbide enhanced bearing |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107513684A (en) * | 2017-07-17 | 2017-12-26 | 中国兵器科学研究院宁波分院 | Self-lubricating composite coating, coating production and the product with the coating |
| CN107513684B (en) * | 2017-07-17 | 2019-12-10 | 中国兵器科学研究院宁波分院 | Self-lubricating composite coating, coating preparation method and product with coating |
| CN108950550A (en) * | 2018-07-24 | 2018-12-07 | 首都航天机械有限公司 | MoS is used in Space Pyrotechnics Devices separation2/ GIC MULTILAYER COMPOSITE solid lubricant coating and preparation method |
| CN108950550B (en) * | 2018-07-24 | 2020-07-14 | 首都航天机械有限公司 | MoS for aerospace firer separation2GIC multilayer composite solid lubricating coating and preparation method thereof |
| CN114959617A (en) * | 2022-06-28 | 2022-08-30 | 西安工程大学 | Ag/WS 2 DLC coating and method for producing the same |
| CN114959617B (en) * | 2022-06-28 | 2024-01-26 | 西安工程大学 | Ag/WS 2 DLC coating and method for producing same |
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| CN106222656B (en) | 2019-11-19 |
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Granted publication date: 20191119 Termination date: 20210823 |