CN104454996A - Anti-corrosion treatment method for sliding bearing shaft sleeve - Google Patents
Anti-corrosion treatment method for sliding bearing shaft sleeve Download PDFInfo
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- CN104454996A CN104454996A CN201410613837.3A CN201410613837A CN104454996A CN 104454996 A CN104454996 A CN 104454996A CN 201410613837 A CN201410613837 A CN 201410613837A CN 104454996 A CN104454996 A CN 104454996A
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Abstract
The invention discloses an anti-corrosion treatment method for a sliding bearing shaft sleeve, belonging to the technical field of machine manufacturing. The anti-corrosion treatment method comprises the following machining steps: (1) chemically removing oil; (2) washing with water; (3) washing with an acid; (4) washing with cooling water; (5) carrying out phosphating treatment; (6) washing with the cooling water; (7) carrying out phosphating post-treatment; and (8) washing with de-ionized water and drying. The problem that the surface of the shaft sleeve is abraded due to a promoting effect of friction temperature rising of additional work of water and oil corrosion when an existing sliding bearing works in media including water, oil and the like is solved. The anti-corrosion treatment method for the sliding bearing shaft sleeve has the advantages of simple method, low cost and easiness for machining.
Description
Technical field
The invention belongs to machinery manufacturing technology field, more particularly, relate to a kind of processing method of sliding bearing boss surfaces.
Background technique
sliding bearing because friction factor is little, the resistance of start is little and be widely used, and is selected for it, lubricates and is safeguarded all more for convenience.Although it is not as good as rolling bearing in some performance, contain the workplace in water or Korrosionsmedium at some, its performance is higher than rolling bearing, and therefore sliding bearing occupies critical role at some special dimensions.Because sliding bearing does not have the ball as rolling bearing, therefore it relies on friction to realize relative movement completely.In the process of friction, its axle sleeve becomes the easily damaged parts in sliding bearing.Because sliding bearing needs to contain in water or Korrosionsmedium at some to work, very high requirement is proposed to its corrosion resistance, especially when abrasive wear or scratch appear in easily damaged parts axle sleeve, the surface of axle sleeve is just more easily subject to extraneous corrosion, and when sliding bearing works, temperature increases substantially, and its corrosive action will be accelerated greatly.Therefore, for the corrosion resistance process of sliding bearing axle sleeve, the key factor affecting sliding bearing working life is become.
Summary of the invention
When working in water, wet goods medium for existing sliding bearing, the promoting effect that the additional operating friction of corrosion because of water oil heats up, make the problem that boss surfaces is easy to wear, the invention provides a kind of corrosion-resistant treatment method of sliding bearing axle sleeve, by the phosphorating treatment to sliding bearing axle sleeve, its corrosion resistance when high temperature is improved, and then improves its working life.
For solving the problem, the present invention adopts following technological scheme.
A corrosion-resistant treatment method for sliding bearing axle sleeve, comprises the following steps:
(1) electrochemical deoiling:
Axle sleeve is put into the solution of the caustic soda containing 30-50g/L, the sodium carbonate of 30-50g/L, the tertiary sodium phosphate of 30-50g/L, the water glass composition of 5-10g/L, solution temperature is 70 DEG C, and standing time is 20-25min;
(2) wash:
Axle sleeve through step (1) is put into hot water clean, water temperature is 90 DEG C, and then puts into cold water and rinse, and water temperature is 20 DEG C;
(3) pickling:
Axle sleeve is put into the solution of corrosion inhibitor of the sulfuric acid containing 60-120g/L, 0.8-1.5g/L, solution temperature is 80 DEG C, and pickling time is 10-15min;
(4) Cold Wash:
By the axle sleeve after pickling, again put into cold water and rinse, water temperature is 20 DEG C;
(5) phosphorating treatment:
Axle sleeve is put into the solution of zinc nitrate of the zinc dihydrogen phosphate containing 30-40g/L, 90-100g/L, solution temperature is 50-70 DEG C, and the processing time is 20-25min;
(6) Cold Wash:
By the axle sleeve after phosphorating treatment, put into cold water and rinse, water temperature is 20 DEG C;
(7) phosphatization reprocessing:
Axle sleeve after step (6) is put in the potassium bichromate solution of 30-50g/L, and solution temperature is 60-70 DEG C, and the processing time is 15min;
(8) deionization washing is also dry.
Preferably, in described step (1), solution is made up of the caustic soda of 40g/L, the sodium carbonate of 45g/L, the tertiary sodium phosphate of 40g/L, the water glass of 8g/L, and standing time is 23min.
Preferably, in described step (5), phosphating solution contains the zinc dihydrogen phosphate of 35g/L, the zinc nitrate of 95g/L, and solution temperature is 60 DEG C, and the processing time is 23min.
Compared to prior art, beneficial effect of the present invention is:
(1) the present invention is by carrying out phosphorating treatment to the surface of axle sleeve, its corrosion resistance when high temperature is improved, and then improves its working life.
(2) the inventive method is simple, and cost is low, easy processing.
Embodiment
Describe the present invention below in conjunction with embodiment.
embodiment 1
A corrosion-resistant treatment method for sliding bearing axle sleeve, comprises the following steps:
(1) electrochemical deoiling:
Axle sleeve is put into the solution of the caustic soda containing 30g/L, the sodium carbonate of 30g/L, the tertiary sodium phosphate of 30g/L, the water glass composition of 5g/L, solution temperature is 70 DEG C, and standing time is 20min;
(2) wash:
Axle sleeve through step (1) is put into hot water clean, water temperature is 90 DEG C, and then puts into cold water and rinse, and water temperature is 20 DEG C;
(3) pickling:
Axle sleeve is put into the solution of corrosion inhibitor of the sulfuric acid containing 60g/L, 0.8g/L, solution temperature is 80 DEG C, and pickling time is 10min;
(4) Cold Wash:
By the axle sleeve after pickling, again put into cold water and rinse, water temperature is 20 DEG C;
(5) phosphorating treatment:
Axle sleeve is put into the solution of zinc nitrate of the zinc dihydrogen phosphate containing 30g/L, 90g/L, solution temperature is 50 DEG C, and the processing time is 20min;
(6) Cold Wash:
By the axle sleeve after phosphorating treatment, put into cold water and rinse, water temperature is 20 DEG C;
(7) phosphatization reprocessing:
Axle sleeve after step (6) is put in the potassium bichromate solution of 30g/L, and solution temperature is 60 DEG C, and the processing time is 15min;
(8) deionization washing is also dry.
embodiment 2
A corrosion-resistant treatment method for sliding bearing axle sleeve, comprises the following steps:
(1) electrochemical deoiling:
Axle sleeve is put into the solution of the caustic soda containing 50g/L, the sodium carbonate of 50g/L, the tertiary sodium phosphate of 50g/L, the water glass composition of 10g/L, solution temperature is 70 DEG C, and standing time is 25min;
(2) wash:
Axle sleeve through step (1) is put into hot water clean, water temperature is 90 DEG C, and then puts into cold water and rinse, and water temperature is 20 DEG C;
(3) pickling:
Axle sleeve is put into the solution of corrosion inhibitor of the sulfuric acid containing 120g/L, 1.5g/L, solution temperature is 80 DEG C, and pickling time is 15min;
(4) Cold Wash:
By the axle sleeve after pickling, again put into cold water and rinse, water temperature is 20 DEG C;
(5) phosphorating treatment:
Axle sleeve is put into the solution of zinc nitrate of the zinc dihydrogen phosphate containing 40g/L, 100g/L, solution temperature is 70 DEG C, and the processing time is 25min;
(6) Cold Wash:
By the axle sleeve after phosphorating treatment, put into cold water and rinse, water temperature is 20 DEG C;
(7) phosphatization reprocessing:
Axle sleeve after step (6) is put in the potassium bichromate solution of 50g/L, and solution temperature is 70 DEG C, and the processing time is 15min;
(8) deionization washing is also dry.
embodiment 3
A corrosion-resistant treatment method for sliding bearing axle sleeve, comprises the following steps:
(1) electrochemical deoiling:
Axle sleeve is put into the solution of the caustic soda containing 40g/L, the sodium carbonate of 45g/L, the tertiary sodium phosphate of 40g/L, the water glass composition of 8g/L, solution temperature is 70 DEG C, and standing time is 23min;
(2) wash:
Axle sleeve through step (1) is put into hot water clean, water temperature is 90 DEG C, and then puts into cold water and rinse, and water temperature is 20 DEG C;
(3) pickling:
Axle sleeve is put into the solution of corrosion inhibitor of the sulfuric acid containing 80g/L, 1.3g/L, solution temperature is 80 DEG C, and pickling time is 13min;
(4) Cold Wash:
By the axle sleeve after pickling, again put into cold water and rinse, water temperature is 20 DEG C;
(5) phosphorating treatment:
Axle sleeve is put into the solution of zinc nitrate of the zinc dihydrogen phosphate containing 35g/L, 95g/L, solution temperature is 60 DEG C, and the processing time is 23min;
(6) Cold Wash:
By the axle sleeve after phosphorating treatment, put into cold water and rinse, water temperature is 20 DEG C;
(7) phosphatization reprocessing:
Axle sleeve after step (6) is put in the potassium bichromate solution of 40g/L, and solution temperature is 65 DEG C, and the processing time is 15min;
(8) deionization washing is also dry.
Claims (3)
1. a corrosion-resistant treatment method for sliding bearing axle sleeve, is characterized in that following steps:
(1) electrochemical deoiling:
Axle sleeve is put into the solution of the caustic soda containing 30-50g/L, the sodium carbonate of 30-50g/L, the tertiary sodium phosphate of 30-50g/L, the water glass composition of 5-10g/L, solution temperature is 70 DEG C, and standing time is 20-25min;
(2) wash:
Axle sleeve through step (1) is put into hot water clean, water temperature is 90 DEG C, and then puts into cold water and rinse, and water temperature is 20 DEG C;
(3) pickling:
Axle sleeve is put into the solution of corrosion inhibitor of the sulfuric acid containing 60-120g/L, 0.8-1.5g/L, solution temperature is 80 DEG C, and pickling time is 10-15min;
(4) Cold Wash:
By the axle sleeve after pickling, again put into cold water and rinse, water temperature is 20 DEG C;
(5) phosphorating treatment:
Axle sleeve is put into the solution of zinc nitrate of the zinc dihydrogen phosphate containing 30-40g/L, 90-100g/L, solution temperature is 50-70 DEG C, and the processing time is 20-25min;
(6) Cold Wash:
By the axle sleeve after phosphorating treatment, put into cold water and rinse, water temperature is 20 DEG C;
(7) phosphatization reprocessing:
Axle sleeve after step (6) is put in the potassium bichromate solution of 30-50g/L, and solution temperature is 60-70 DEG C, and the processing time is 15min;
(8) deionization washing is also dry.
2. the corrosion-resistant treatment method of a kind of sliding bearing axle sleeve according to claim 1, it is characterized in that, in described step (1), solution is made up of the caustic soda of 40g/L, the sodium carbonate of 45g/L, the tertiary sodium phosphate of 40g/L, the water glass of 8g/L, and standing time is 23min.
3. the corrosion-resistant treatment method of a kind of sliding bearing axle sleeve according to claim 1, is characterized in that, in described step (5), phosphating solution contains the zinc dihydrogen phosphate of 35g/L, the zinc nitrate of 95g/L, and solution temperature is 60 DEG C, and the processing time is 23min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410613837.3A CN104454996A (en) | 2014-11-05 | 2014-11-05 | Anti-corrosion treatment method for sliding bearing shaft sleeve |
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| CN201410613837.3A CN104454996A (en) | 2014-11-05 | 2014-11-05 | Anti-corrosion treatment method for sliding bearing shaft sleeve |
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| CN104454996A true CN104454996A (en) | 2015-03-25 |
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| CN201410613837.3A Pending CN104454996A (en) | 2014-11-05 | 2014-11-05 | Anti-corrosion treatment method for sliding bearing shaft sleeve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134783A (en) * | 2015-09-10 | 2015-12-09 | 安庆银泰轴承有限公司 | Machining technology of bearing inner sleeve of air conditioner |
| CN106222638A (en) * | 2016-08-26 | 2016-12-14 | 桐乡市恒泰精密机械有限公司 | Swash plate outer peripheral surface processes technique |
| CN106521518A (en) * | 2016-11-26 | 2017-03-22 | 龚广兴 | Four-in-one treating fluid formula and treating method |
| CN108166006A (en) * | 2017-12-26 | 2018-06-15 | 合肥南方汽车零部件有限公司 | A kind of process of surface treatment of the automobile metal parts of surface texture complexity |
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| CN101054672A (en) * | 2007-05-23 | 2007-10-17 | 泉州师范学院 | Coating technique for decoration chromium |
| CN101671825A (en) * | 2009-10-13 | 2010-03-17 | 广东联塑科技实业有限公司 | Pre-treating technique for composite metal plastic pipe |
| CN102230171A (en) * | 2011-06-15 | 2011-11-02 | 武昌船舶重工有限责任公司 | Phosphating solution of iron and steel pipe piece before painting |
| CN102628167A (en) * | 2012-04-19 | 2012-08-08 | 常熟市异型钢管有限公司 | Uniform phosphorizing technology for surface coating of steel tube |
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2014
- 2014-11-05 CN CN201410613837.3A patent/CN104454996A/en active Pending
Patent Citations (4)
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| CN101054672A (en) * | 2007-05-23 | 2007-10-17 | 泉州师范学院 | Coating technique for decoration chromium |
| CN101671825A (en) * | 2009-10-13 | 2010-03-17 | 广东联塑科技实业有限公司 | Pre-treating technique for composite metal plastic pipe |
| CN102230171A (en) * | 2011-06-15 | 2011-11-02 | 武昌船舶重工有限责任公司 | Phosphating solution of iron and steel pipe piece before painting |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134783A (en) * | 2015-09-10 | 2015-12-09 | 安庆银泰轴承有限公司 | Machining technology of bearing inner sleeve of air conditioner |
| CN105134783B (en) * | 2015-09-10 | 2017-09-19 | 安庆银泰轴承有限公司 | A kind of processing technology of air-conditioning bearing inner sleeve |
| CN106222638A (en) * | 2016-08-26 | 2016-12-14 | 桐乡市恒泰精密机械有限公司 | Swash plate outer peripheral surface processes technique |
| CN106521518A (en) * | 2016-11-26 | 2017-03-22 | 龚广兴 | Four-in-one treating fluid formula and treating method |
| CN108166006A (en) * | 2017-12-26 | 2018-06-15 | 合肥南方汽车零部件有限公司 | A kind of process of surface treatment of the automobile metal parts of surface texture complexity |
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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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Application publication date: 20150325 |
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