CN103849311B - A kind of method preparing solid lubricant coating on copper standard shaft watt - Google Patents
A kind of method preparing solid lubricant coating on copper standard shaft watt Download PDFInfo
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- CN103849311B CN103849311B CN201210498063.5A CN201210498063A CN103849311B CN 103849311 B CN103849311 B CN 103849311B CN 201210498063 A CN201210498063 A CN 201210498063A CN 103849311 B CN103849311 B CN 103849311B
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Abstract
The invention discloses a kind of method preparing solid lubricant coating on copper standard shaft watt.The present invention selects a kind of suitable coating, is coated in a copper standard shaft watt surface and forms solidified coating.This coating and metallic copper alloy substrate have good adhesion, can below 260 DEG C life-time service; This coating has good lubrication, wear-resistant and antiseized copper performance, significantly can reduce the frictional coefficient of copper base bearing alloy, reduce copper standard shaft watt and bent axle thereof at start and stop, low engine oil viscosity and without the scratch under oil condition and sticky copper, tile kilning phenomenon, improve the resistance to abrasion of copper standard shaft watt, emergency operating ability and work-ing life.
Description
Technical field
The present invention relates to a kind of method preparing solid lubricant coating on copper standard shaft watt, belong to matrix material preparation and coating technology field.
Background technology
Bearing shell is sliding surface bearing and the tactile part that is coupling, during sliding surface bearing work, direct and indirect Frotteurism is there is between bearing shell and rotating shaft, because of insufficient lubrication under start and stop operating mode, load is excessive, temperature is too high, lubricating oil exists impurity or viscosity is abnormal etc., and factor causes tile kilning, wearing and tearing increase and the damage of sliding surface bearing, thus requires that bearing shell has good self-lubricating and wear resisting property.The shortcoming of the plain tri-metal bearing of traditional steel backing+copper alloy layer+coating structure is that its soft coating wear resistance is not enough, and coating is once be damaged, and hard middle nickel-barrier layer can cause bearing shell to lose emergency operating ability very soon.Therefore the high-abrasive material must finding new solid lubricant coating technology and excellent property, to improve wear-resisting, load-carrying properties and the adaptability of traditional bearing shell bearing materials, improves bearing shell work-ing life, with the active demand of satisfied advanced engine fast development.
In recent years, research and development new work engine bearing shell self-lubricating solid lubricant, improved bearing shell supporting capacity, wear resistance and military service performance, became the emphasis of each large bearing shell development of company engine bearing new technology in the world.As Austrian Miba company develops based on MoS
2be the polymeric coating of solid lubricant with graphite, be applied over copper-based material bearing shell surface, efficiently solve engine bearing rise-stop wear and tear.But because business information is maintained secrecy and the reason such as fund, Technical investment, seldom publish current research result related to this in the world.The research and development of China's like product are also in the initial stage, CN101629601B discloses a kind of high molecular abrasion-proof bearing bush, relate to the metal bush high molecular abrasion-proof layer be made up of polyamidoimide complex polyester and molybdenumdisulphide, the work-ing life of bearing shell is increased, but this patent of invention more lay particular emphasis on formulating of recipe and the preparation of bearing shell metal level.
Summary of the invention
The object of the present invention is to provide a kind of method preparing solid lubricant coating on copper standard shaft watt, the lubricity solving traditional copper Base Metal bearing shell is undesirable, there is sticky copper and the problem such as wear resistance is not enough.
Technical scheme provided by the invention:
The present invention is by containing the organic/inorganic compound coating of solid lubrication phase in watt surface preparation of copper standard shaft, the friction contact between metal is made to change over friction contact between metal and polymer-based carbon solid lubricant, effectively reduce the wearing and tearing of copper standard shaft watt, improve bearing shell emergency operating ability and work-ing life.We have prepared a kind of suitable coating, are coated in copper standard shaft watt surface, solidify to form the slip coating with good combination power.
Copper standard shaft watt is prepared a method for solid lubricant coating, it is characterized in that the method comprises:
A, coating quality per-cent form: molybdenumdisulphide 3.0-9.0%, graphite 0-3.0%, hexagonal boron nitride 0.5-3.0%, cerous fluoride 0.1-2.0%, antimonous oxide 2.0-5.0%, polyamidoimide 5.0-20.0%, tetrafluoroethylene 0-5.0%, silicone resin 0.1-1.0% and organic solvent surplus;
The preparation method of B, solid lubricant coating: the mixture of molybdenumdisulphide, graphite, hexagonal boron nitride, cerous fluoride, antimonous oxide, silicone resin and part organic solvent is carried out grinding distribution, add polyamidoimide, tetrafluoroethylene and surplus organic solvent, stir and obtain coating; Again with spray gun by the copper substrate surfaces of paint spay-coating at metal bush, leave standstill and at 280 ± 10 DEG C, solidify 2-3 hour, cool to room temperature after surface drying in 10-30 minute, obtain copper standard shaft watt solid lubricant coating.
Organic solvent of the present invention is by any one in N,N-DIMETHYLACETAMIDE, N-N-methyl 2-pyrrolidone N-and dimethyl formamide, and aromatic solvent, acetone, vinyl acetic monomer, Acetanilide, one composition in methylene dichloride.
Weight ratio in N,N-DIMETHYLACETAMIDE of the present invention, N-N-methyl 2-pyrrolidone N-or dimethyl formamide and aromatic solvent, acetone, vinyl acetic monomer, Acetanilide or methylene dichloride is 0.6-4:1.
Molybdenumdisulphide of the present invention, graphite, hexagonal boron nitride, cerous fluoride, antimonous oxide component, be the powder that granularity is less than 30um.
Silicone resin of the present invention, for silicone content is more than or equal to the liquid of 50wt%.
Polyamidoimide of the present invention is pressed powder.
Of the present invention on copper standard shaft watt, prepare solid lubricant coating leading indicator and external (Miba company) like product to such as table 1:
Table 1
As seen from Table 1, under oil lubrication state, copper standard shaft of the present invention watt is all better than Miba company like product by the lubricity of solid lubricant coating, and under DRY SLIDING, both are suitable.
The present invention has good combination power at the solid lubricant coating of copper standard shaft watt surface preparation and copper alloy substrate, can below 260 DEG C life-time service; This coating has good lubricating properties and abrasion resistance, the frictional coefficient of remarkable reduction copper alloy layer, solve the not enough and problem such as sticky copper, tile kilning phenomenon of the wear resistance of traditional copper standard shaft watt, improve copper standard shaft watt without lubrication, the wear-resisting and military service performance under oil or oil starvation state, meet the update requirement of high-performance enginer.
The present invention prepares solid lubricant coating on copper standard shaft watt, the lubrication and the wearing and tearing that are applicable to the various metal bush copper substrate surfaces of life-time service temperature≤260 DEG C reduce, as supported the metal bush copper substrate surfaces of sliding surface bearing in automobile, aircraft, steamer and mechanical means.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but the protection domain of application claims is not limited to the scope that embodiment represents.
Embodiment 1
Take 100 grams of molybdenumdisulphide, 20 grams of graphite, 10 grams of hexagonal boron nitrides, 15 grams of cerous fluorides, 35 grams of antimonous oxides and 5 grams of silicone resins put into grinding pot, add 100 grams of organic solvents and carry out grinding distribution; Add 215 grams of polyamidoimides and 650 grams of organic solvents again, stir and obtain solid lubricating coating (organic solvent is N-N-methyl 2-pyrrolidone N-and aromatic solvent 3:1 mixing by weight); Then with spray gun by the copper substrate surfaces of this coating even application at metal bush, leave standstill within 10-30 minute, after surface drying, put into baking oven, at 280 ± 10 DEG C, be incubated 2-3 hour, after cooling, obtain copper standard shaft watt surface solid lubricating coating.
Embodiment 2
Molybdenumdisulphide 6.0%, graphite 3.0%, hexagonal boron nitride 2.0%, cerous fluoride 1.5%, antimonous oxide 5.0%, polyamidoimide 15.0%, tetrafluoroethylene 2.0%, silicone resin 0.8%, organic solvent surplus (the 3:1 mixing by weight of N-N-methyl 2-pyrrolidone N-and Acetanilide); Method is with embodiment 1.
Embodiment 3
Molybdenumdisulphide 3.0%, graphite 2.0%, hexagonal boron nitride 3.0%, cerous fluoride 0.7%, antimonous oxide 5.0%, polyamidoimide 17.0%, tetrafluoroethylene 5.0%, silicone resin 0.1%, organic solvent surplus (the 1:1.5 mixing by weight of N-N-methyl 2-pyrrolidone N-and methylene dichloride); Method is with embodiment 1.
Embodiment 4
Molybdenumdisulphide 7.0%, graphite 2.0%, hexagonal boron nitride 1.0%, cerous fluoride 0.5%, antimonous oxide 3.0%, polyamidoimide 10.0%, silicone resin 0.2%, organic solvent surplus (the 2:1 mixing by weight of N,N-DIMETHYLACETAMIDE and aromatic solvent); Method is with embodiment 1.
Embodiment 5
Molybdenumdisulphide 5.0%, graphite 1.0%, hexagonal boron nitride 0.5%, cerous fluoride 1.50%, antimonous oxide 5.0%, polyamidoimide 12.0%, silicone resin 0.8%, organic solvent surplus (dimethyl sulfoxide (DMSO) and aromatic solvent are by weight 3:1 mixing); Method is with embodiment 1.
Embodiment 6
Molybdenumdisulphide 8.0%, hexagonal boron nitride 1.0%, cerous fluoride 1.5%, antimonous oxide 3.0%, polyamidoimide 15.0%, silicone resin 0.8%, organic solvent surplus (dimethyl formamide and vinyl acetic monomer are by weight 4:1 mixing); Method is with embodiment 1.
Claims (6)
1. on copper standard shaft watt, prepare a method for solid lubricant coating, it is characterized in that the method comprises:
A, coating quality per-cent form: molybdenumdisulphide 3.0-9.0%, graphite 0-3.0%, hexagonal boron nitride 0.5-3.0%, cerous fluoride 0.1-2.0%, antimonous oxide 2.0-5.0%, polyamidoimide 5.0-20.0%, tetrafluoroethylene 0-5.0%, silicone resin 0.1-1.0% and organic solvent surplus;
The preparation method of B, solid lubricant coating: the mixture of molybdenumdisulphide, graphite, hexagonal boron nitride, cerous fluoride, antimonous oxide, silicone resin and part organic solvent is carried out grinding distribution, add polyamidoimide, tetrafluoroethylene and surplus organic solvent, stir and obtain coating; Again with spray gun by the copper substrate surfaces of paint spay-coating at metal bush, leave standstill and at 280 ± 10 DEG C, solidify 2-3 hour, cool to room temperature after surface drying in 10-30 minute, obtain copper standard shaft watt solid lubricant coating.
2. the method for claim 1, is characterized in that organic solvent is made up of the one in any one in N,N-DIMETHYLACETAMIDE, N-N-methyl 2-pyrrolidone N-and dimethyl formamide and aromatic solvent, acetone, vinyl acetic monomer, Acetanilide, methylene dichloride.
3. method as claimed in claim 2, is characterized in that the weight ratio in N,N-DIMETHYLACETAMIDE, N-N-methyl 2-pyrrolidone N-or dimethyl formamide and aromatic solvent, acetone, vinyl acetic monomer, Acetanilide or methylene dichloride is 0.6-4:1.
4. the method for claim 1, is characterized in that molybdenumdisulphide, graphite, hexagonal boron nitride, cerous fluoride, antimonous oxide component are the powder that granularity is less than 30 μm.
5. the method for claim 1, is characterized in that silicone resin is the liquid that silicone content is more than or equal to 50wt%.
6. the method for claim 1, is characterized in that polyamidoimide is pressed powder.
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| CN103849311B true CN103849311B (en) | 2016-01-13 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893502A (en) * | 2015-06-08 | 2015-09-09 | 烟台大丰轴瓦有限责任公司 | Bearing bush coating and spraying technique thereof |
| CN104879385B (en) * | 2015-06-08 | 2018-03-30 | 烟台大丰轴瓦有限责任公司 | A kind of spraying coating process of the coating of bearing shell containing molybdenum disulfide |
| CN106118452A (en) * | 2016-06-24 | 2016-11-16 | 安徽九华金润铜业有限公司 | A kind of processing technique of self-lubricating composite coating |
| CN106189819A (en) * | 2016-07-26 | 2016-12-07 | 中国科学院兰州化学物理研究所 | A kind of environment-friendly water-based molybdenum-disulfide radical bonded solid lubricant coating and its preparation method and application |
| CN106222656B (en) * | 2016-08-23 | 2019-11-19 | 上海交通大学 | Soft or hard alternately composite coating and preparation method thereof for bush material surface |
| CN106881256A (en) * | 2017-03-14 | 2017-06-23 | 蚌埠奥特压缩机有限公司 | A kind of oil-free lubrication method of bearing liner for compressor |
| KR102391002B1 (en) * | 2017-09-11 | 2022-04-27 | 현대자동차주식회사 | Coating material and washer for drive shaft using thereof |
| CN108611606A (en) * | 2018-05-10 | 2018-10-02 | 山东大学 | A kind of compound soft coating cutters of Mo-S-Sb-C and preparation method thereof |
| CN110079209B (en) * | 2019-04-02 | 2021-09-21 | 曹均 | Wide-temperature-range internal combustion engine bearing bush self-lubricating coating and spraying method thereof |
| CN110565132A (en) * | 2019-09-10 | 2019-12-13 | 江苏师范大学 | Equipment and method for locally repairing abrasion of press bearing bush |
Citations (3)
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| CN1073968A (en) * | 1991-12-31 | 1993-07-07 | 中国科学院兰州化学物理研究所 | Dry-film lubricant |
| CN1186827A (en) * | 1996-12-24 | 1998-07-08 | 中国科学院兰州化学物理研究所 | Polyimide self lubricating composite material |
| CN1552782A (en) * | 2003-05-31 | 2004-12-08 | 中国科学院兰州化学物理研究所 | High temperature resistant and wear resistant lubricating paint |
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2012
- 2012-11-29 CN CN201210498063.5A patent/CN103849311B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073968A (en) * | 1991-12-31 | 1993-07-07 | 中国科学院兰州化学物理研究所 | Dry-film lubricant |
| CN1186827A (en) * | 1996-12-24 | 1998-07-08 | 中国科学院兰州化学物理研究所 | Polyimide self lubricating composite material |
| CN1552782A (en) * | 2003-05-31 | 2004-12-08 | 中国科学院兰州化学物理研究所 | High temperature resistant and wear resistant lubricating paint |
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