CN104289391B - A kind of bearing surface protection processing method - Google Patents
A kind of bearing surface protection processing method Download PDFInfo
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- CN104289391B CN104289391B CN201410573473.0A CN201410573473A CN104289391B CN 104289391 B CN104289391 B CN 104289391B CN 201410573473 A CN201410573473 A CN 201410573473A CN 104289391 B CN104289391 B CN 104289391B
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Abstract
The present invention relates to a kind of bearing surface protection processing method, it is characterized in that: the outer ring outer surface of described bearing is coated with one deck plastic-blasting layer, and its concrete steps comprise successively: cleaning, pre-assembled, low-temperature primary are dried, plastic-blasting operation and low temperature secondary drying.By workmanship of spraying plastics at bearing outer ring surface spraying layer protective layer, play a protective role to bearing outer ring, technique is simple, pollution-free; Bearing outer ring is dried and protective layer solidification dry time, adopt the parameter lower than heat treatment critical value, avoid surface treatment impact bearing performance parameter and fluctuate, guarantee bearing quality.In addition, workmanship of spraying plastics can adopt coloured sprayed on material according to demand, is convenient to classify to each specification, purposes product while shielding to product surface.
Description
Technical field
The present invention relates to a kind of surface treatment method, particularly a kind of bearing surface protection processing method.
Background technology
Door frame bearing is a kind of very important parts in logistics carrier.Its major function supports and realize vehicle door frame to move up and down.
The surface of usual door frame bearing needs to do antirust treatment, such as, when vehicle works under the adverse circumstances such as border on the sea, saltern, humidity, requires stricter to the barrier propterty of bearing.Particularly in recent years, because environmental protection receives the great attention of world's every country, the technique such as original door frame bearing surface process phosphatization, blackout (turning blue), plating is restricted
Above-mentioned treatment process can impact performances such as the case hardnesses of bearing in processing procedure, is unfavorable for that bearing quality controls; Technique is comparatively complicated, and is needs pickling or electrochemical reaction, and cost is higher, if three-protection design is bad be easy to the pollution causing environment.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of can extend bearing service life and technique simple, pollute little bearing surface protection processing method.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of door frame bearing surface protection processing method, its innovative point is: the outer ring outer surface of described bearing is coated with one deck plastic-blasting layer, its concrete steps are: step S1 cleans: carry out Integral cleaning with clear water to bearing outer ring, inner ring, the dust of removal bearing outer ring, inner peripheral surface and impurity; Step S2 is pre-assembled: bearing outer ring and inner ring, rolling element are tentatively assembled, and adopts circular baffle plate to replace bearing sealed ring to be arranged in the spacer ring groove at bearing outer ring two ends; Step S3 low-temperature primary is dried: the bearing outer ring cleaned is placed in tunnel-type drying furnace and dries, bake out temperature is 100-120 DEG C, and drying time is 1-3min, and bearing rotates with the speed of 5-10r/min; Subsequent processing is entered immediately after baking operation completes; Step S4 plastic-blasting operation: by nozzle to bearing surface spraying polyurethane powder protective finish, guarantee that coating only covers the surface of bearing outer ring by circular baffle plate; During spraying, nozzle alignment bearing, bearing outer ring rotates with the speed of 12-20r/min, and nozzle exit pressure is 0.10-0.12Mp, coating layer thickness 5-8 μm; Sent in hot-blast stove by bearing after sprayed protection coating and dry, bake out temperature is≤180 DEG C, and bearing rotates with the speed of 12-20r/min, and drying time is 7-10min.
Preferably, in plastic-blasting operation, several coaxial bearing be sleeved in same rotating shaft, each bearing is all connected and fixed with rotating shaft, leaves gap between adjacent bearing, to realize the surface plastic spraying process of multiple bearing outer ring simultaneously.
The invention has the advantages that: by workmanship of spraying plastics at bearing outer ring surface spraying layer protective layer, play a protective role to bearing outer ring, technique is simple, pollution-free; Bearing outer ring is dried and protective layer solidification dry time, adopt the parameter lower than heat treatment critical value, avoid surface treatment impact bearing performance parameter and fluctuate, guarantee bearing quality.In addition, workmanship of spraying plastics can adopt coloured sprayed on material according to demand, is convenient to classify to each specification, purposes product while shielding to product surface.
Accompanying drawing explanation
Fig. 1 is middle (center) bearing surfacecti proteon processing method process chart of the present invention.
Detailed description of the invention
Be coated with one deck plastic-blasting layer to the outer ring outer surface of bearing in the present invention, its concrete steps are:
Step S1 cleans: carry out Integral cleaning with clear water to bearing ring (i.e. bearing outer ring, inner ring), the dust of removal bearing outer ring, inner peripheral surface and impurity;
Step S2 is pre-assembled: bearing outer ring and inner ring, rolling element are tentatively assembled, and adopts circular baffle plate to replace bearing sealed ring to be arranged in the spacer ring groove at bearing outer ring two ends;
Step S3 low-temperature primary is dried: the bearing outer ring cleaned is placed in tunnel-type drying furnace and dries, bake out temperature is 100-120 DEG C, and drying time is 1-3min, and bearing rotates with the speed of 5-10r/min; Subsequent processing is entered immediately after baking operation completes;
By circular baffle plate, step S4 plastic-blasting operation: by nozzle to bearing surface sprayed protection coating, guarantees that coating only covers the surface of bearing outer ring; During spraying, nozzle alignment bearing, bearing outer ring rotates with the speed of 12-20r/min, and nozzle exit pressure is 0.10-0.12Mp, coating layer thickness 5-8 μm; Protective finish is polyurethane powder.
Step S5 low temperature secondary drying: the bearing after sprayed protection coating is sent in hot-blast stove and dries; bake out temperature is≤180 DEG C, makes polyurethane powder melted join generating polyurethane layer, in this process; bearing rotates with the speed of 12-20r/min, and drying time is 7-10min.
Following table is the parameter comparison such as secondary drying case hardness before and after treatment, metallographic structure in the present invention:
conclusion: after the process of low temperature secondary drying, the outer ring of bearing, inner ring and roller surface hardness, metallographic structure are all unchanged, can not impact bearing performance.
Following table be after middle (center) bearing outer peripheral surface of the present invention process with surface treatment before size comparison's (a collection of bearing produced in early July, 2014 for Rugao Wanda Special Bearing Co., Ltd.):
External diameter * outer ring, specification one: MG40A1-25 outer ring width
External diameter * outer ring, specification two: MG45A7-14 outer ring width
External diameter * outer ring, specification three: CG40A1-22 outer ring width
conclusion: adopt the bearing outer ring of process of surface treatment of the present invention and untreated bearing outer ring size substantially unchanged.
In the present invention, in plastic-blasting operation, several coaxial bearing be sleeved in same rotating shaft, each bearing outer ring is all connected and fixed with rotating shaft, leaves gap between adjacent bearing, to realize the surface plastic spraying process of multiple bearing outer ring simultaneously.
Above-mentioned technique is adopted to carry out the contrast with phosphorating treatment, hot spray painted zinc process after surface treatment to bearing outer ring:
| Project | Phosphorating treatment | Hot spray painted zinc process | Surface treatment of the present invention |
| Performance is with or without impact | Nothing | Nothing | Nothing |
| Environmental pollution | Have | Have | Nothing |
| Cost | 1.3 yuan/kilogram | 1.8 yuan/kilogram | 1.5 yuan/kilogram |
| Salt fog checks | 72 hours | 100 hours | > 500 hours |
As can be seen from the above table, bearing surface protection processing method longer service life of the present invention, and environmental protection is pollution-free.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (2)
1. a door frame bearing surface protection processing method, is characterized in that: the outer ring outer surface of described bearing is coated with one deck plastic-blasting layer, and its concrete steps are:
Step S1 cleans: carry out Integral cleaning with clear water to bearing outer ring, inner ring, the dust of removal bearing outer ring, inner peripheral surface and impurity;
Step S2 is pre-assembled: bearing outer ring and inner ring, rolling element are tentatively assembled, and adopts circular baffle plate to replace bearing sealed ring to be arranged in the spacer ring groove at bearing outer ring two ends;
Step S3 low-temperature primary is dried: the bearing outer ring cleaned is placed in tunnel-type drying furnace and dries, bake out temperature is 100-120 DEG C, and drying time is 1-3min, and bearing rotates with the speed of 5-10r/min; Subsequent processing is entered immediately after baking operation completes;
Step S4 plastic-blasting operation: by nozzle to bearing surface spraying polyurethane powder protective finish, guarantee that coating only covers the surface of bearing outer ring by circular baffle plate; During spraying, nozzle alignment bearing, bearing outer ring rotates with the speed of 12-20r/min, and nozzle exit pressure is 0.10-0.12Mpa, coating layer thickness 5-8 μm;
Step S5 low temperature secondary drying: sent in hot-blast stove by the bearing after sprayed protection coating and dry, bake out temperature is≤180 DEG C, and bearing rotates with the speed of 12-20r/min, and drying time is 7-10min.
2. bearing surface protection processing method according to claim 1, it is characterized in that: in plastic-blasting operation, several coaxial bearing is sleeved in same rotating shaft, each bearing is all connected and fixed with rotating shaft, gap is left, to realize the surface plastic spraying process of multiple bearing outer ring simultaneously between adjacent bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410573473.0A CN104289391B (en) | 2014-10-24 | 2014-10-24 | A kind of bearing surface protection processing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410573473.0A CN104289391B (en) | 2014-10-24 | 2014-10-24 | A kind of bearing surface protection processing method |
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| CN104289391A CN104289391A (en) | 2015-01-21 |
| CN104289391B true CN104289391B (en) | 2016-04-06 |
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| CN201410573473.0A Active CN104289391B (en) | 2014-10-24 | 2014-10-24 | A kind of bearing surface protection processing method |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930064A (en) * | 2015-06-09 | 2015-09-23 | 卢家雄 | Bearing surface treatment method |
| CN105032741A (en) * | 2015-06-09 | 2015-11-11 | 卢家雄 | Surface treatment method for rolling bearing |
| CN108187987A (en) * | 2018-01-09 | 2018-06-22 | 海宁迪万沃浦建材科技有限公司 | A kind for the treatment of process of bearing surface |
| CN110374999A (en) * | 2018-04-13 | 2019-10-25 | 徐州罗特艾德回转支承有限公司 | The method for detecting the pivoting support of warning function with automatic fracture and manufacturing it |
| CN109402366A (en) * | 2018-10-10 | 2019-03-01 | 米巴精密零部件（中国）有限公司 | A method of improving bearing shell steel back performance |
| CN115090449B (en) * | 2022-06-21 | 2023-12-08 | 金寨县聚鑫包装有限公司 | Omnibearing plastic spraying device and plastic spraying method for tea gift boxes |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934264A (en) * | 2010-09-30 | 2011-01-05 | 瓦房店轴承集团有限责任公司 | Novel anticorrosive process of wind power bearing |
| CN102527612A (en) * | 2011-12-30 | 2012-07-04 | 上海市轴承技术研究所 | Surface modification processing method of knuckle bearing |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011077023A1 (en) * | 2011-06-07 | 2012-12-13 | Schaeffler Technologies AG & Co. KG | Coating process and coating for a bearing component |
| DE102012101649A1 (en) * | 2012-02-29 | 2013-08-29 | Thyssenkrupp Rothe Erde Gmbh | Method for producing a roller bearing cage, in particular for slewing bearings, and device for carrying out the method |
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2014
- 2014-10-24 CN CN201410573473.0A patent/CN104289391B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934264A (en) * | 2010-09-30 | 2011-01-05 | 瓦房店轴承集团有限责任公司 | Novel anticorrosive process of wind power bearing |
| CN102527612A (en) * | 2011-12-30 | 2012-07-04 | 上海市轴承技术研究所 | Surface modification processing method of knuckle bearing |
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Address after: 226500 No. 189, Yishou South Road, Rugao City, Nantong City, Jiangsu Province Patentee after: Jiangsu Wanda Special Bearing Co.,Ltd. Address before: 226500 No. 189, Yishou South Road, Rugao City, Nantong City, Jiangsu Province Patentee before: JIANGSU WANDA SPECIAL BEARING Co.,Ltd. |
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Address after: 226500 No. 333, Fushou East Road, Rucheng street, Rugao City, Nantong City, Jiangsu Province Patentee after: Jiangsu Wanda Special Bearing Co.,Ltd. Address before: 226500 No. 189, Yishou South Road, Rugao City, Nantong City, Jiangsu Province Patentee before: Jiangsu Wanda Special Bearing Co.,Ltd. |
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