CN103849311A - Method for preparing solid lubricant coating on copper base bearing bush - Google Patents
Method for preparing solid lubricant coating on copper base bearing bush Download PDFInfo
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- CN103849311A CN103849311A CN201210498063.5A CN201210498063A CN103849311A CN 103849311 A CN103849311 A CN 103849311A CN 201210498063 A CN201210498063 A CN 201210498063A CN 103849311 A CN103849311 A CN 103849311A
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Abstract
The invention discloses a method for preparing a solid lubricant coating on a copper base bearing bush. According to the invention, a selected suitable coating coats on the surface of the copper base bearing bush to form a curing coating. The coating has good adhesion with the metal copper alloy substrate, and can be used for a long time under 260 DEG C; and the coating has good lubricity, wear resistance and anti-copper sticking property, and can significantly reduce the friction coefficient of the alloy layer of the copper base bearing bush and reduce the phenomena of scratching, copper sticking and burnout of the copper base bearing bush and crankshaft under start and stop state, low machine oil viscosity state and oil free state, so as to improve wear resistance, emergency operation capability and service life of the copper base bearing bush.
Description
Technical field
The present invention relates to a kind of method of preparing solid lubricant coating on copper base bearing shell, belong to matrix material preparation and coating technology field.
Background technology
Bearing shell is sliding surface bearing and the tactile part that is coupling, when sliding surface bearing work, between bearing shell and rotating shaft, there is direct and indirect Frotteurism, because insufficient lubrication under start and stop operating mode, excessive, the excess Temperature of loading, lubricating oil exist impurity or viscosity is abnormal etc. that factor causes tile kilning, wearing and tearing to increase and the damage of sliding surface bearing, thereby require bearing shell to there is 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 its soft coating wear resistance deficiency, once coating is damaged, hard middle nickel-barrier layer can cause bearing shell to lose very soon emergency operating ability.Therefore the high-abrasive material that must find new solid lubricant coating technology and excellent property to be to improve wear-resisting, load-carrying properties and the adaptability of traditional bearing shell bearing materials, improves bearing shell work-ing life, to meet the active demand of 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 the each large bearing shell development of company engine bearing new technology in the world.As Austrian Miba company develops based on MoS
2with the polymeric coating that graphite is solid lubricant, be applied over copper-based material bearing shell surface, efficiently solve the wearing and tearing that rise-stop of engine bearing.But because business information is maintained secrecy and the reason such as fund, technology input, seldom publish in the world current research result related to this.The research and development of China's like product are also in the initial stage, CN 101629601B discloses a kind of high molecular abrasion-proof bearing bush, relate to the metal bush high molecular abrasion-proof layer being formed by polyamidoimide complex polyester and molybdenumdisulphide, increased the work-ing life of bearing shell, 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 of preparing solid lubricant coating on copper base bearing shell, the lubricity that solves traditional copper Base Metal bearing shell is undesirable, have the problems such as sticky copper and wear resistance deficiency.
Technical scheme provided by the invention:
The present invention is by the organic/inorganic compound coating containing solid lubrication phase in the preparation of copper base bearing shell surface, make the friction contact between metal change over the friction contact between metal and polymer-based carbon solid lubricant, effectively reduce the wearing and tearing of copper base bearing shell, improved bearing shell emergency operating ability and work-ing life.We have prepared a kind of suitable coating, are coated in copper base bearing shell surface, solidify to form the slip coating with good combination power.
On copper base bearing shell, prepare a method for solid lubricant coating, it is characterized in that the method comprises:
A, coating quality per-cent composition: 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 to grinding distribution, add polyamidoimide, tetrafluoroethylene and surplus organic solvent, stir and obtain coating; Again with spray gun by paint spay-coating the copper substrate surface at metal bush, leave standstill after 10-30 minute surface drying and at 280 ± 10 ℃, solidify 2-3 hour, cool to room temperature, obtains copper base bearing shell 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 one composition in aromatic solvent, acetone, vinyl acetic monomer, Acetanilide, 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.
The leading indicator of preparing solid lubricant coating on copper base bearing shell of the present invention and external (Miba company) like product are to such as table 1:
Table 1
As seen from Table 1, under oil lubrication state, copper base bearing shell of the present invention 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 in solid lubricant coating and the copper alloy substrate of the surface preparation of copper base bearing shell, can be below 260 ℃ life-time service; This coating has good lubrication and abrasion resistance, significantly reduce the frictional coefficient of copper alloy layer, solve the problem such as wear resistance deficiency and sticky copper, tile kilning phenomenon of traditional copper base bearing shell, improve copper base bearing shell in lubricated, the wear-resisting and military service performance without under oil or oil starvation state, meet the update requirement of high-performance enginer.
The present invention prepares solid lubricant coating on copper base bearing shell, lubricated and the wearing and tearing that are applicable to the various metal bush copper substrate surfaces of life-time service temperature≤260 ℃ reduce, as the metal bush copper substrate surface for supporting 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 that the present invention requires 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 and put into grinding pot, add 100 grams of organic solvents to carry out grinding distribution; Add again 215 grams of polyamidoimides and 650 grams of organic solvents, 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, this coating is evenly sprayed on to the copper substrate surface of metal bush, leaves standstill and after surface drying, put into baking oven in 10-30 minute, at 280 ± 10 ℃, be incubated 2-3 hour, obtain copper base bearing shell surface solid lubricating coating after cooling.
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 (N-N-methyl 2-pyrrolidone N-and Acetanilide by weight 3:1 mix); 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 (N-N-methyl 2-pyrrolidone N-and methylene dichloride by weight 1:1.5 mix); 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 (N,N-DIMETHYLACETAMIDE and aromatic solvent by weight 2:1 mix); 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 mix by weight 3:1); 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 mix by weight 4:1); Method is with embodiment 1.
Claims (6)
1. a method of preparing solid lubricant coating on copper base bearing shell, is characterized in that the method comprises:
A, coating quality per-cent composition: 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 to grinding distribution, add polyamidoimide, tetrafluoroethylene and surplus organic solvent, stir and obtain coating; Again with spray gun by paint spay-coating the copper substrate surface at metal bush, leave standstill after 10-30 minute surface drying and at 280 ± 10 ℃, solidify 2-3 hour, cool to room temperature, obtains copper base bearing shell solid lubricant coating.
2. the method for claim 1, is characterized in that organic solvent is by any one in N,N-DIMETHYLACETAMIDE, N-N-methyl 2-pyrrolidone N-and dimethyl formamide, and one composition in 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, is the powder that granularity is less than 30um.
5. the method for claim 1, is characterized in that silicone resin, for silicone content is more than or equal to the liquid of 50wt%.
6. the method for claim 1, is characterized in that polyamidoimide is pressed powder.
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| CN201210498063.5A CN103849311B (en) | 2012-11-29 | 2012-11-29 | A kind of method preparing solid lubricant coating on copper standard shaft watt |
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| CN201210498063.5A CN103849311B (en) | 2012-11-29 | 2012-11-29 | A kind of method preparing solid lubricant coating on copper standard shaft watt |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879385A (en) * | 2015-06-08 | 2015-09-02 | 烟台大丰轴瓦有限责任公司 | Coating containing molybdenum disulfide and process applying coating on bearing bush spraying |
| 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 |
| 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 |
| CN106222656A (en) * | 2016-08-23 | 2016-12-14 | 上海交通大学 | Soft or hard for bush material surface replaces composite coating and preparation method thereof |
| 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 |
| 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 |
| CN109486410A (en) * | 2017-09-11 | 2019-03-19 | 现代自动车株式会社 | Coating composition and the washer for vehicle drive shaft being produced from it |
| CN110079209A (en) * | 2019-04-02 | 2019-08-02 | 曹均 | Wide temperature range internal combustion engine bearing self-lubricating coat in use and its spraying method |
| 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 |
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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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Patent 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 |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN104879385A (en) * | 2015-06-08 | 2015-09-02 | 烟台大丰轴瓦有限责任公司 | Coating containing molybdenum disulfide and process applying coating on bearing bush spraying |
| 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 |
| CN106222656A (en) * | 2016-08-23 | 2016-12-14 | 上海交通大学 | Soft or hard for bush material surface replaces composite coating and preparation method thereof |
| 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 |
| CN114392909A (en) * | 2017-03-14 | 2022-04-26 | 蚌埠奥特压缩机有限公司 | Ultrathin spraying oil-free lubrication method for compressor bearing bush |
| CN109486410A (en) * | 2017-09-11 | 2019-03-19 | 现代自动车株式会社 | Coating composition and the washer for vehicle drive shaft being produced from it |
| CN109486410B (en) * | 2017-09-11 | 2022-03-15 | 现代自动车株式会社 | Coating composition and gasket for vehicle drive shaft manufactured therefrom |
| 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 |
| CN110079209A (en) * | 2019-04-02 | 2019-08-02 | 曹均 | Wide temperature range internal combustion engine bearing self-lubricating coat in use and its spraying method |
| 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 |
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| CN103849311B (en) | 2016-01-13 |
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