CN104893450B - Bearing bush coating material and spraying technique thereof - Google Patents
Bearing bush coating material and spraying technique thereof Download PDFInfo
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- CN104893450B CN104893450B CN201510307947.1A CN201510307947A CN104893450B CN 104893450 B CN104893450 B CN 104893450B CN 201510307947 A CN201510307947 A CN 201510307947A CN 104893450 B CN104893450 B CN 104893450B
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Abstract
The invention discloses a bearing bush coating material and a spraying technique thereof. The coating material is composed of the following materials in percentage by weight: 3% of polytetrafluoroethylene, 8% of molybdenum disulfide, 10% of silicon carbide ceramic, 10% of graphite and the balance of organic solvent. The technique comprises the following steps: cleaning and polishing, primary drying, primary ultrasonic deoiling, secondary drying, secondary ultrasonic deoiling, tertiary drying, sandblasting, primary spraying, secondary spraying, thermosetting, inspection and subpackaging. By combining the coating material and spraying technique, the adhesiveness of the coating with the bearing bush alloy layer is obviously enhanced, the coating has higher uniformity and low shedding tendency, and the product has high qualification rate.
Description
Technical field
The invention belongs to bearing shell manufacture field, and in particular to a kind of bearing shell coating material and spraying coating process.
Background technology
The structure of traditional bearing shell is to adhere to an alloy-layer on steel back layer, is added by way of plating or sputter on alloy-layer
One layer of soft anti-attrition layer.The main purpose of the anti-attrition layer is to increase the compliance of inner surface of bearing bush, mosaicism, wearability.
However, constantly riseing with engine power, bearing shell is faced with more and more severe working environment, and traditional bearing shell Jing often goes out
Existing alloy-layer peels off the phenomenon with plating exfoliation, causes the situation of electromotor tile kilning.And electroplate anti-attrition layer mode and belong to high dirty
Dye processing mode, and requirement of the sputtering way to equipment is very high, increases production cost.
In recent years, each bearing shell producer progressively forms coating replacement anti-attrition layer and becomes a kind of using spraying coating process on bearing shell surface
Emerging trend, in such a process, molybdenum bisuphide becomes irreplaceable first-selection in coating material component as kollag,
Certainly, bearing shell final performance has close ties with the addition of the proportioning and other matching components of molybdenum bisuphide.Jing is retrieved, application
Number CN201210498063.5 patents disclose a kind of method that solid lubricant coating is prepared on cuprio bearing shell, the patent application
In in greater detail disclose coating material therefor component and proportioning, in addition publication number CN 101629601B patents provide one kind
High molecular abrasion-proof bearing bush, the metal bush for being related to be made up of polyamidoimide complex polyester and molybdenum bisuphide is resistance to macromolecule
Mill layer, the service life for making bearing shell increases, and this two patents of invention all lay particular emphasis on the formula design of bearing shell metal level and make
It is standby, and for spraying coating process lacks preferably innovation.For spraying coating process, applicant retrieves application number 201310061734.1
Molybdenum bisuphide is solidificated in bearing shell base by number alloy-free floor bearing shell spraying molybdenum bisuphide technique, the stronger dependence cohesive material of the technique
Body surface face, but this mode can not preferably solve the problems, such as coating shedding.
Applicant has found in production, with reference to rational production technology, can obtain in the case where coating cost is saved
Same or more excellent possesses compliance, mosaicism, wearability bearing shell, and coating can be made to obtain higher bonding with bearing shell matrix
Power, coating is difficult for drop-off, and bearing shell has higher conforming product rate and longer service life.
The content of the invention
The present invention provides a kind of bearing shell coating material spraying coating process, keep or possess more excellent compliance, mosaicism,
On the basis of wearability use requirement, it is possible to resolve the technical problem that bearing shell coating is easy to fall off and coating production cost is higher.
The present invention is adopted the technical scheme that：
A kind of bearing shell coating material and spraying coating process, it is characterised in that：It is made up of following material by weight：Polytetrafluoro
Second is dilute 3%, molybdenum bisuphide 8%, silicon carbide ceramics 10%, graphite 10%, balance of organic solvent, wherein the polytetrafluoroethylene and carbon
SiClx ceramics are 1-2 micron particle, and graphite and molybdenum bisuphide are that the organic solvent is by epoxy resin less than 3-5 micron particle
1 is pressed with dimethyl acetylamide：3 ratios are mixed.
A kind of bearing shell coating material spraying coating process, it is characterised in that：Comprise the following steps：
A, cleaning polishing：Bearing shell matrix is positioned in vibrating finishing machine carries out cleaning polishing, and polished amount reaches 40kg
≤G≤60kg；
B, first drying：Bearing shell matrix is positioned in vacuum dryer and is dried, 220 DEG C ± 5 DEG C of temperature control, time control
50-60 minutes processed；
C, a ultrasound wave deoil：Ultrasound wave cleaning cleanout fluid operating temperature controls 35-40 DEG C, ultrasound wave cleaning electricity
Flow control 4-5A, ultrasound wave cleaning oil removing time control 50-60min；
D, secondary drying：Bearing shell matrix is positioned in vacuum dryer and is dried, 220 DEG C ± 5 DEG C of temperature control, time control
50-60 minutes processed；
E, twice ultrasonic ripple deoil；Ultrasound wave cleaning cleanout fluid operating temperature controls 35-40 DEG C, ultrasound wave cleaning electricity
Flow control 4-5A, ultrasound wave cleaning oil removing time control 50-60min；
F, three drying：Drying temperature controls 180 DEG C ± 5 DEG C, drying time control 50-60 minutes;
G, sandblasting：Blasting treatment, air compressor pressure control are carried out to bearing shell matrix using sandblasting machine and air compressor
0.72-0.82MPa processed, blasting pressure control 0.4-0.45MPa, blast time control is not less than 60min, and the abrasive material that sandblasts selects 30
Darkish eye corundum；
H, once spray：Bearing shell latch inclined-plane is divided upwards on plastics magnetic sheet, and spray gun is by claim 1 gained coating
Bearing shell surface is sprayed at, the direction of spray gun operation is parallel with coated article face all the time, spray gun 300 ~ 400mm/s of the speed of service, spray
0.02 ~ 0.03mm of paint thickness is applied, is entered drying oven together with plastics magnetic sheet and is dried 45 ~ 50 minutes at 135 DEG C
I, secondary spraying：Bearing shell latch inclined-plane is divided downwards on plastics magnetic sheet, and spray gun is by claim 1 gained coating
Bearing shell surface is sprayed at, the direction of spray gun operation is parallel with coated article face all the time, spray gun 300 ~ 400mm/s of the speed of service, spray
0.02 ~ 0.03mm of paint thickness is applied, is entered drying oven together with plastics magnetic sheet and is dried 45 ~ 50 minutes at 135 DEG C；
J, it is heating and curing：Product is put on solidification frame and enters drying oven solidification, 180 DEG C ± 5 DEG C of temperature control, time control
60 minutes；
K, inspection subpackage.
In coating material component, polytetrafluoroethylene and molybdenum bisuphide have good lubricity, and this can ensure bearing shell
Fatigue resistance, and carborundum and graphite with the use of making coefficient of friction greatly reduce, effectively improve bearing shell anti-wear performance,
Simultaneously silicon-carbide particle forms rigid support, thoroughly prevents the alloy face of bearing shell and the direct friction of bent axle, becomes bent axle and bearing shell
The friction in alloy face is the friction between coating material molecule.
The spraying coating process differs from two aspects with other spraying coating process：1st, this technique has to bearing shell matrix surface
Strict processing requirement of deoiling, after deoiling and dry after ultrasound wave twice, bearing shell matrix surface is remained without any oil stain, light
Sliding clean surface makes that any gap will not be produced between bearing shell matrix and coating, and 2, sandblasting, in smooth bearing shell matrix surface
Blasting treatment is done, makes the surface form roughness, the hard particles in coating can be very good to be attached on matsurface so as to table
The face uniformity is more excellent than the bearing shell of other usual manner productions, and this point is especially apparent under metallograph contrast.Above-mentioned two
Aspect can greatly improve the degree of adhesion of coating and bearing shell matrix, bearing shell production qualification rate is obviously improved and is extended and use
Life-span.
Table 1 is to illustrate coating of the present invention and be contrasted using sputtered layer abrasion detection
Testing equipment：MM-U10A end face frictional wear testers, detection load：1600N, 60 minutes time, gained knot
Fruit is as follows
| Experimental subject | Conventional sputter layer material | Coating material of the present invention |
| Coefficient of friction | 0.085 | 0.055 |
| Wear extent | 0.3μm | 0.04μm |
Specific embodiment
A kind of bearing shell coating material and spraying coating process, it is characterised in that：It is made up of following material by weight：Polytetrafluoro
Second is dilute 3%, molybdenum bisuphide 8%, silicon carbide ceramics 10%, graphite 10%, balance of organic solvent, wherein the polytetrafluoroethylene and carbon
SiClx ceramics are 1-2 micron particle, and graphite and molybdenum bisuphide are that the organic solvent is by epoxy resin less than 3-5 micron particle
1 is pressed with dimethyl acetylamide：3 ratios are mixed.
A kind of bearing shell coating material spraying coating process, it is characterised in that：Comprise the following steps：
A, cleaning polishing：Bearing shell matrix is positioned in vibrating finishing machine carries out cleaning polishing；
B, first drying：Bearing shell matrix is positioned in vacuum dryer and is dried, 220 DEG C ± 5 DEG C of temperature control, time control
50-60 minutes processed；
C, a ultrasound wave deoil：Ultrasound wave cleaning cleanout fluid operating temperature controls 35-40 DEG C, ultrasound wave cleaning electricity
Flow control 4-5A, ultrasound wave cleaning oil removing time control 50-60min；
D, secondary drying：Bearing shell matrix is positioned in vacuum dryer and is dried, 220 DEG C ± 5 DEG C of temperature control, time control
50-60 minutes processed；
E, twice ultrasonic ripple deoil；Ultrasound wave cleaning cleanout fluid operating temperature controls 35-40 DEG C, ultrasound wave cleaning electricity
Flow control 4-5A, ultrasound wave cleaning oil removing time control 50-60min；
F, three drying：Drying temperature controls 180 DEG C ± 5 DEG C, drying time control 50-60 minutes;
G, sandblasting：Blasting treatment, air compressor pressure control are carried out to bearing shell matrix using sandblasting machine and air compressor
0.72-0.82MPa processed, blasting pressure control 0.4-0.45MPa, blast time control is not less than 60min, and the abrasive material that sandblasts selects 30
Darkish eye corundum；
H, once spray：Bearing shell latch inclined-plane is divided upwards on plastics magnetic sheet, and spray gun is by claim 1 gained coating
Bearing shell surface is sprayed at, the direction of spray gun operation is parallel with coated article face all the time, spray gun 300 ~ 400mm/s of the speed of service, spray
0.02 ~ 0.03mm of paint thickness is applied, is entered drying oven together with plastics magnetic sheet and is dried 45 ~ 50 minutes at 135 DEG C
I, secondary spraying：Bearing shell latch inclined-plane is divided downwards on plastics magnetic sheet, and spray gun is by claim 1 gained coating
Bearing shell surface is sprayed at, the direction of spray gun operation is parallel with coated article face all the time, spray gun 300 ~ 400mm/s of the speed of service, spray
0.02 ~ 0.03mm of paint thickness is applied, is entered drying oven together with plastics magnetic sheet and is dried 45 ~ 50 minutes at 135 DEG C；
J, it is heating and curing：Product is put on solidification frame and enters drying oven solidification, 180 DEG C ± 5 DEG C of temperature control, time control
60 minutes；
K, inspection subpackage.
Claims (1)
1. a kind of spraying coating process of bearing shell coating material, it is characterised in that：The bearing shell coating material by it is following by weight
Material is constituted：Polytetrafluoroethylene 3%, molybdenum bisuphide 8%, silicon carbide ceramics 10%, graphite 10%, balance of organic solvent, its
Described in polytetrafluoroethylene and silicon carbide ceramics be 1-2 micron particle, graphite and molybdenum bisuphide are 3-5 micron particle, described to have
Machine solvent presses 1 by epoxy resin and dimethyl acetylamide：3 ratios are mixed；
The spraying coating process of the bearing shell coating material is comprised the following steps：
A, cleaning polishing：Bearing shell matrix is positioned in vibrating finishing machine carries out cleaning polishing；
B, first drying：Bearing shell matrix is positioned in vacuum dryer and is dried, 220 DEG C ± 5 DEG C of temperature control, time control
50-60 minutes；
C, a ultrasound wave deoil：Ultrasonic cleaning solution operating temperature controls 35-40 DEG C, ultrasound wave cleaning current control 4-
5A, ultrasound wave cleaning oil removing time control 50-60min；
D, secondary drying：Bearing shell matrix is positioned in vacuum dryer and is dried, 220 DEG C ± 5 DEG C of temperature control, time control
50-60 minutes；
E, twice ultrasonic ripple deoil；Ultrasonic cleaning solution operating temperature controls 35-40 DEG C, ultrasound wave cleaning current control 4-
5A, ultrasound wave cleaning oil removing time control 50-60min；
F, three drying：Drying temperature controls 180 DEG C ± 5 DEG C, drying time control 50-60 minutes；
G, sandblasting：Blasting treatment, air compressor pressure control are carried out to bearing shell matrix using sandblasting machine and air compressor
0.72-0.82MPa, blasting pressure control 0.4-0.45MPa, blast time control is not less than 60min, and the abrasive material that sandblasts selects 30 mesh
Black corundum；
H, once spray：Bearing shell latch inclined-plane is divided upwards on plastics magnetic sheet, and the coating material is sprayed at axle by spray gun
Watt surface, the direction of spray gun operation is parallel with coated article face all the time, and spray gun 300~400mm/s of the speed of service, sprayed coating is thick
0.02~0.03mm of degree, enters drying oven and dries 45~50 minutes at 135 DEG C together with plastics magnetic sheet；
I, secondary spraying：Bearing shell latch inclined-plane is divided downwards on plastics magnetic sheet, and the coating material is sprayed at axle by spray gun
Watt surface, the direction of spray gun operation is parallel with coated article face all the time, and spray gun 300~400mm/s of the speed of service, sprayed coating is thick
0.02~0.03mm of degree, enters drying oven and dries 45~50 minutes at 135 DEG C together with plastics magnetic sheet；
J, it is heating and curing：Product is put on solidification frame and enters drying oven solidification, 180 DEG C ± 5 DEG C of temperature control, 60 points of time control
Clock；
K, inspection subpackage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510307947.1A CN104893450B (en) | 2015-06-08 | 2015-06-08 | Bearing bush coating material and spraying technique thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510307947.1A CN104893450B (en) | 2015-06-08 | 2015-06-08 | Bearing bush coating material and spraying technique thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN104893450A CN104893450A (en) | 2015-09-09 |
| CN104893450B true CN104893450B (en) | 2017-05-17 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106118153A (en) * | 2016-08-02 | 2016-11-16 | 福缔汽车（太仓）有限公司 | A kind of wear-resistant coating for bearing 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 |
| CN107337987A (en) * | 2017-07-07 | 2017-11-10 | 合肥新意境材料有限责任公司 | A kind of novel high wear-resistant chromium-free Dyclo paint and preparation method thereof |
| CN107201147A (en) * | 2017-07-07 | 2017-09-26 | 合肥新意境材料有限责任公司 | A kind of anti-aging chromium-free Dyclo paint and preparation method thereof |
| CN107868609A (en) * | 2017-10-25 | 2018-04-03 | 中国第汽车股份有限公司 | A kind of bearing shell polymer coating and its preparation technology |
| CN108047930A (en) * | 2017-12-29 | 2018-05-18 | 中国第汽车股份有限公司 | A kind of bearing shell polymer coating and its spraying process |
| CN109248843B (en) * | 2018-09-11 | 2021-10-29 | 在邦润滑材料（上海）有限公司 | Processing technology of lubricating wear-resistant coating of engine bearing bush |
| CN113881375B (en) * | 2021-10-08 | 2022-03-25 | 成都托克密封件有限责任公司 | Slip coating and preparation method thereof, slip and soluble bridge plug |
| CN114634739A (en) * | 2022-04-22 | 2022-06-17 | 包坤 | Preparation method of coating of male and female rotors of screw compressor |
| CN116040966A (en) * | 2023-01-17 | 2023-05-02 | 东华大学 | Glass chemical strengthening method by using heat high pressure treatment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4583750B2 (en) * | 2003-12-25 | 2010-11-17 | 大豊工業株式会社 | Sliding material |
| AT502546B1 (en) * | 2005-09-16 | 2007-10-15 | Miba Gleitlager Gmbh | BEARING ELEMENT |
| JP4921894B2 (en) * | 2006-08-30 | 2012-04-25 | 住鉱潤滑剤株式会社 | Multi-layer lubricating coating composition, multi-layer lubricating coating and piston having the coating |
| CN103143487B (en) * | 2013-02-27 | 2014-12-17 | 烟台春生滑动轴承有限公司 | Process for spaying MoS2 on bearing bush without alloy layer |
| CN103817413B (en) * | 2014-03-20 | 2016-02-17 | 哈尔滨工业大学 | A kind of preparation method of copper-based alloy bearing bush wearing layer |
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Inventor after: Mu Jianpu Inventor after: Zhao Yangang Inventor after: Su Shengshan Inventor after: Qin Liming Inventor after: Wang Jiping Inventor after: Di Weigang Inventor after: Liu Kun Inventor before: Mu Jianpu |
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Denomination of invention: A coating material for bearing bush and its spraying process Effective date of registration: 20220609 Granted publication date: 20170517 Pledgee: China Everbright Bank Limited by Share Ltd. Yantai branch Pledgor: YANTAI DAFENG PLAIN BEARING Co.,Ltd. Registration number: Y2022980007364 |
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