CN104451649A - Surface treatment method of bearing - Google Patents
Surface treatment method of bearing Download PDFInfo
- Publication number
- CN104451649A CN104451649A CN201410614207.8A CN201410614207A CN104451649A CN 104451649 A CN104451649 A CN 104451649A CN 201410614207 A CN201410614207 A CN 201410614207A CN 104451649 A CN104451649 A CN 104451649A
- Authority
- CN
- China
- Prior art keywords
- bearing
- basic solution
- surface treatment
- treatment method
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/60—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH greater than 8
- C23C22/66—Treatment of aluminium or alloys based thereon
Abstract
The invention discloses a surface treatment method of a bearing, belonging to the technical field of machine manufacturing. The method comprises the following processing steps: (1) preparing an alkaline liquid; (2) preparing a bearing material; (3) carrying out surface treatment; and (4) carrying out post-treatment. The surface treatment method disclosed by the invention solves the problem that the bearing is subjected to fatigue failure as rolling friction between the inner surface of the bearing and balls for a long time occurs and has the advantages of being simple in method, low in cost and easy to process.
Description
Technical field
The invention belongs to machinery manufacturing technology field, more particularly, relate to a kind of oxidation treatment method of bearing surface.
Background technology
The main failure forms of engineering materials is surface failure, comprise wearing and tearing, burn into surface damage etc., and general fatigue fracture failure is also from surface.Make the ability inside and outside all with opposing surface failure of material, both add technical difficulty to manufacturing processed, also uneconomical.Under material body keeps original performance, resist it by surface treatment and lost efficacy, there is positive economic implications.
Bearing uses extensively at mechanical field, and the material that bearing mnanufacture is conventional has soft matrix Hard Inclusion bearing metal and the hard soft spot bearing alloy of matrix.For the soft spot bearing alloy of hard matrix, wherein conventional is high tin Z-alloy, wherein containing the aluminium of 79%, the tin of 20% and 1% copper.Because the bearing of hard matrix soft spot bearing alloy manufacture has stronger supporting capacity, and be widely used, but its internal surface is because causing fatigue failure with the long rolling resistance of ball, the process for this reason for its surface is quite important.
Summary of the invention
Cause the problem of fatigue failure because of long-time and ball generation rolling resistance for the internal surface of existing bearing, the invention provides a kind of surface treatment method of bearing, by to bearing inner surface oxide treatment, to obtain hard oxide film, thus improve its wear resistance, delay the generation of the fatigue failure of bearing.
For solving the problem, the present invention adopts following technical scheme.
A surface treatment method for bearing, comprises the following steps:
(1) preparation of basic solution:
Basic solution is by anhydrous sodium carbonate 40-50g/L, Sodium chromate 13-15 g/L, caustic soda 2.5 g/L, and excess water composition;
(2) preparation of bearing materials:
After bearing precision work, clean;
(3) surface treatment:
Bearing is put into basic solution, and the temperature of basic solution is 80-100 DEG C, and the treatment time is 6-10min;
(4) post-processed:
Bearing is taken out from basic solution, and cleans with clear water, dry.
Preferably, in described step (1), basic solution is by anhydrous sodium carbonate 45g/L, Sodium chromate 15g/L, caustic soda 2.5 g/L, and excess water composition.
Preferably, in described step (3), the temperature of basic solution is 90 DEG C, and the treatment time is 7min.
Compared to prior art, beneficial effect of the present invention is:
(1) the present invention is processed aluminum-based bearing material by the basic solution of configuration, makes its surface produce oxide film, and is combined firmly with base aluminum, improve the anticorrosive and wear resisting property on surface, thus delay the generation of the fatigue failure of bearing.
(2) the inventive method is simple, and cost is low, handling ease.
Embodiment
Describe the present invention below in conjunction with embodiment.
embodiment 1
A surface treatment method for bearing, comprises the following steps:
(1) preparation of basic solution:
Basic solution is by anhydrous sodium carbonate 40g/L, Sodium chromate 13 g/L, caustic soda 2.5 g/L, and excess water composition;
(2) preparation of bearing materials:
After bearing precision work, clean;
(3) surface treatment:
Bearing is put into basic solution, and the temperature of basic solution is 80 DEG C, and the treatment time is 6min;
(4) post-processed:
Bearing is taken out from basic solution, and cleans with clear water, dry.
embodiment 2
A surface treatment method for bearing, comprises the following steps:
(1) preparation of basic solution:
Basic solution is by anhydrous sodium carbonate 50g/L, Sodium chromate 15 g/L, caustic soda 2.5 g/L, and excess water composition;
(2) preparation of bearing materials:
After bearing precision work, clean;
(3) surface treatment:
Bearing is put into basic solution, and the temperature of basic solution is 100 DEG C, and the treatment time is 10min;
(4) post-processed:
Bearing is taken out from basic solution, and cleans with clear water, dry.
embodiment 3
A surface treatment method for bearing, comprises the following steps:
(1) preparation of basic solution:
Basic solution is by anhydrous sodium carbonate 45g/L, Sodium chromate 14 g/L, caustic soda 2.5 g/L, and excess water composition;
(2) preparation of bearing materials:
After bearing precision work, clean;
(3) surface treatment:
Bearing is put into basic solution, and the temperature of basic solution is 90 DEG C, and the treatment time is 8min;
(4) post-processed:
Bearing is taken out from basic solution, and cleans with clear water, dry.
Claims (3)
1. a surface treatment method for bearing, is characterized in that following steps:
(1) preparation of basic solution:
Basic solution is by anhydrous sodium carbonate 40-50g/L, Sodium chromate 13-15 g/L, caustic soda 2.5 g/L, and excess water composition;
(2) preparation of bearing materials:
After bearing precision work, clean;
(3) surface treatment:
Bearing is put into basic solution, and the temperature of basic solution is 80-100 DEG C, and the treatment time is 6-10min;
(4) post-processed:
Bearing is taken out from basic solution, and cleans with clear water, dry.
2. the surface treatment method of a kind of bearing according to claim 1, is characterized in that, in described step (1), basic solution is by anhydrous sodium carbonate 45g/L, Sodium chromate 15g/L, caustic soda 2.5 g/L, and excess water composition.
3. the surface treatment method of a kind of bearing according to claim 1, is characterized in that, in described step (3), the temperature of basic solution is 90 DEG C, and the treatment time is 7min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410614207.8A CN104451649A (en) | 2014-11-05 | 2014-11-05 | Surface treatment method of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410614207.8A CN104451649A (en) | 2014-11-05 | 2014-11-05 | Surface treatment method of bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104451649A true CN104451649A (en) | 2015-03-25 |
Family
ID=52898381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410614207.8A Pending CN104451649A (en) | 2014-11-05 | 2014-11-05 | Surface treatment method of bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104451649A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009280845A (en) * | 2008-05-20 | 2009-12-03 | Nissan Motor Co Ltd | Treatment method for metal surface, and sliding component having metal surface by the treatment method |
| CN103374720A (en) * | 2013-07-02 | 2013-10-30 | 天长市京发铝业有限公司 | Aluminum alloy oxidation solution and oxidation process using solution |
-
2014
- 2014-11-05 CN CN201410614207.8A patent/CN104451649A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009280845A (en) * | 2008-05-20 | 2009-12-03 | Nissan Motor Co Ltd | Treatment method for metal surface, and sliding component having metal surface by the treatment method |
| CN103374720A (en) * | 2013-07-02 | 2013-10-30 | 天长市京发铝业有限公司 | Aluminum alloy oxidation solution and oxidation process using solution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 605-606 room 35, electronic Pioneer Park, Hengshan Road, Wuhu economic and Technological Development Zone, Anhui 241006, China Applicant after: Wuhu Jinlong Mold Forging Co.,Ltd. Address before: 241006 Anhui Province, Wuhu City Development Zone, Wuyi Road No. 13 (City Industrial Park) Applicant before: Wuhu Jinlong Mold Forging Co.,Ltd. |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
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| WD01 | Invention patent application deemed withdrawn after publication |