CN101092722B - Planet gear shaft and process method - Google Patents
Planet gear shaft and process method Download PDFInfo
- Publication number
- CN101092722B CN101092722B CN2007100247930A CN200710024793A CN101092722B CN 101092722 B CN101092722 B CN 101092722B CN 2007100247930 A CN2007100247930 A CN 2007100247930A CN 200710024793 A CN200710024793 A CN 200710024793A CN 101092722 B CN101092722 B CN 101092722B
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- Prior art keywords
- plating
- planet pin
- treatment
- gear shaft
- plating bath
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 23
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 10
- 238000009713 electroplating Methods 0.000 claims abstract description 5
- 238000007747 plating Methods 0.000 claims description 22
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 238000002203 pretreatment Methods 0.000 claims description 6
- 150000002815 nickel Chemical class 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 3
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 3
- 239000004327 boric acid Substances 0.000 claims description 3
- 238000005255 carburizing Methods 0.000 claims description 3
- 238000002242 deionisation method Methods 0.000 claims description 3
- 210000000981 epithelium Anatomy 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 229910052573 porcelain Inorganic materials 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 claims description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 210000001138 tear Anatomy 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Electroplating Methods And Accessories (AREA)
Abstract
This invention discloses a satellite gear shaft, which has a wear- and burning-resistant non-ferrous metal (nickel) electroplating layer on the outer surface. The electroplating layer has such advantages as high hardness, high wear resistance and high corrosion resistance. This invention also provides a treatment method for the satellite gear shaft. The mechanical properties of the treated satellite gear shaft are more reliable. The treatment method has such advantages as simple process, easy operation, reliable product performance, long service life and lwo cost.
Description
Technical field
The invention belongs to a kind of manufacturing field of vehicle transmission, specifically, relate to a kind of planet pin and treatment process thereof.
Background technology
In the prior art, planet pin is component commonly used in the vehicle transmission field, particularly is applied in the vitals in the physical construction such as differential mechanism.Because the applying working condition of planet pin is comparatively abominable, situation such as usually wear and tear, burn to death has a strong impact on the performance and the life-span of physical constructions such as differential mechanism.Therefore often need to adopt various complete processings to guarantee the normal use of planet pin.
At present, common have a bonderizing.Planet pin through bonderizing is crossed though mechanical property is greatly improved, provides protection to matrix metal, prevents that to a certain extent metal is corroded.But for wear resistance and the anti-high working conditions of performance requriements of burning to death, the result of use of above-mentioned treatment process is unsatisfactory, usually causes planet pin not use normally.
Summary of the invention
Technical problem to be solved by this invention is that wear resistance and anti-burning to death under the high working conditions of performance requriements, planet pin such as weares and teares, burns to death at the technical problem of phenomenon, and a kind of planet pin and treatment process thereof are provided
The technical scheme that the present invention will provide is, a kind of planet pin is provided with wear-resisting, the anti-high rigidity non-ferrous metal coating of burning to death of one deck at the outside surface of described planet pin.
Described metal level is galvanized nickel layer.
Described nickel layer comprises the coating that adheres on mother metal and the described mother metal.
The hardness of described coating is Hv0.05/700-1000.
The hardness of described mother metal is more than the Hv0.3/500.
Described a kind of planetary treatment process, the first step, clean metal porcelain spare; In second step, dilute hydrochloric acid soaks; In the 3rd step, wash down; The 4th step, the plating pre-treatment; In the 5th step, immerse plating bath; In the 6th step, regulate electric current and electroplate; In the 7th step, in plating bath, take out; In the 8th step, wash down; The 9th step, the deionization poach; The tenth step, oven dry.
During described plating pre-treatment, the plating front surface of mother metal is treated to, does not have the carburizing abnormal layer on the circumference change face;
The oil groove position does not have burr, wedge angle; Remove oil groove portion acidifying epithelium; Cylindrical Grinding Processes, mill back Ra0.63; Can not regrind after the surface treatment and cut cylindrical.
The composition of described plating bath is single nickel salt 100-170 (g/l), sal epsom 21-30 (g/l), boric acid 14-30 (g/l), sodium-chlor 4-12 (g/l).
When described adjusting electric current was electroplated, current density was 0.5 (A/dm2).
In the process of described electroplating processes, temperature is a room temperature, is preferably the 15-28 degree; The pH value of solution is 5-6.
The technical solution adopted in the present invention is a kind of planet pin, compared with prior art, the outside surface of this planet pin is coated with the galvanization coating of one deck hardness height, wear resistance, excellent corrosion resistance, and the treatment process to this planet pin that this programme provided, by specific processing requirement and treatment scheme, make the mechanical property of planet pin firm more, reliable, characteristics such as simultaneously, the technical solution adopted in the present invention has also that technology is simple, easy and simple to handle, product performance are reliable, long service life, cost are low.
Description of drawings
The experiment structural representation of coating of the present invention.
Embodiment
Design concept of the present invention is that in order to solve wear resistance and anti-burning to death under the high working conditions of performance requriements, planet pin such as weares and teares, burns to death at the technical problem of phenomenon.Along with the technical development between the nearest more than ten years, the nickel plating technology of China has had very big improvement, especially electroless nickel plating is by feat of its good coating performance, and is all very excellent as hardness height, wear resistance, erosion resistance, now has been applied to growing field.The present invention combines the planet pin in the differential mechanism with electroless nickel plating technology, and makes the mechanical property of planet pin firm more, reliable by specific processing requirement.Can be applied to wear resistance and the exigent applying working condition of the anti-property burnt to death through the planet pin of handling like this, such processing requirements also can be applicable on the part that similar operating mode is used simultaneously.
The technical solution adopted in the present invention is, a kind of planet pin is provided with wear-resisting, the anti-high rigidity non-ferrous metal coating of burning to death of one deck at the outside surface of described planet pin; Described metal level is galvanized nickel layer.Described nickel layer comprises the coating that adheres on mother metal and the described mother metal.The hardness of described coating is Hv0.05/700-1000.The hardness of described mother metal is more than the Hv0.3/500.Described a kind of planetary treatment process, the first step, clean metal porcelain spare; In second step, dilute hydrochloric acid soaks; In the 3rd step, wash down; The 4th step, the plating pre-treatment; In the 5th step, immerse plating bath; In the 6th step, regulate electric current and electroplate; In the 7th step, in plating bath, take out; In the 8th step, wash down; The 9th step, the deionization poach; The tenth step, oven dry.
During described plating pre-treatment, the plating front surface of mother metal is treated to, does not have the carburizing abnormal layer on the circumference change face; The oil groove position does not have burr, wedge angle; Remove oil groove portion acidifying epithelium; Cylindrical Grinding Processes, mill back Ra0.63; Can not regrind after the surface treatment and cut cylindrical.The composition of described plating bath is single nickel salt 100-170 (g/l), sal epsom 21-30 (g/l), boric acid 14-30 (g/l), sodium-chlor 4-12 (g/l).When described adjusting electric current was electroplated, current density was 0.5 (A/dm2).In the process of described electroplating processes, temperature is a room temperature, is preferably the 15-28 degree; The pH value of solution is 5-6.
The chemical ingredients of coating:
| P (weight %) | Ni (weight %) |
| 8～10 | Residual |
The quality of coating:
A kind of planetary treatment process provided by the present invention is that part is immersed in the solution of nickel salt as negative electrode, and metal nickel plate is as anode, connect direct supply after, on part, will deposit metallic nickel plated layer.The prescription and the processing condition of electronickelling see Table 1
The prescription of table 1 electronickelling and processing condition
Claims (2)
1. a planet pin is characterized in that, is electroplate with the plating nickel layer of wear-resisting, the anti-high rigidity of burning to death of one deck at the outside surface of described planet pin, and the hardness of coating is Hv0.05/700-1000; The hardness of mother metal is more than the Hv0.3/500.
2. the treatment process of the described a kind of planet pin of claim 1 is characterized in that,
The first step, clean metal porcelain spare;
In second step, dilute hydrochloric acid soaks;
In the 3rd step, wash down;
In the 4th step, the plating pre-treatment during described plating pre-treatment, is treated to the plating front surface of mother metal, does not have the carburizing abnormal layer on the circumference change face; The oil groove position does not have burr, wedge angle; Remove oil groove portion acidifying epithelium; Cylindrical Grinding Processes, mill back Ra0.63; Can not regrind after the surface treatment and cut cylindrical;
The 5th step, immerse plating bath, the composition of described plating bath is single nickel salt 100-170g/l, sal epsom 21-30g/l, boric acid 14-30g/l, sodium-chlor 4-12g/l;
The 6th step, regulate electric current and electroplate, when described adjusting electric current was electroplated, current density was 0.5A/dm2, in the process of described electroplating processes, temperature is a room temperature; The pH value of solution is 5-6;
In the 7th step, in plating bath, take out;
In the 8th step, wash down;
The 9th step, the deionization poach;
The tenth step, oven dry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100247930A CN101092722B (en) | 2007-06-25 | 2007-06-25 | Planet gear shaft and process method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100247930A CN101092722B (en) | 2007-06-25 | 2007-06-25 | Planet gear shaft and process method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101092722A CN101092722A (en) | 2007-12-26 |
| CN101092722B true CN101092722B (en) | 2010-10-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100247930A Active CN101092722B (en) | 2007-06-25 | 2007-06-25 | Planet gear shaft and process method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101092722B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10077484B2 (en) | 2016-10-28 | 2018-09-18 | Schaeffler Technologies AG & Co. KG | Method for producing a planetary gear shaft having increased hardness |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1056134A (en) * | 1991-03-26 | 1991-11-13 | 中国石油天然气总公司第二石油机械厂 | Continuous chromium plating for super long shaft and equipment |
| CN1697939A (en) * | 2003-03-13 | 2005-11-16 | 松下电器产业株式会社 | Fluid bearing device |
-
2007
- 2007-06-25 CN CN2007100247930A patent/CN101092722B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1056134A (en) * | 1991-03-26 | 1991-11-13 | 中国石油天然气总公司第二石油机械厂 | Continuous chromium plating for super long shaft and equipment |
| CN1697939A (en) * | 2003-03-13 | 2005-11-16 | 松下电器产业株式会社 | Fluid bearing device |
Non-Patent Citations (8)
| Title |
|---|
| 刘慧卿.陶瓷-金属封接的化学镀镍工艺.真空电子技术 2.2006,(2),55-58. |
| 刘慧卿.陶瓷-金属封接的化学镀镍工艺.真空电子技术 2.2006,(2),55-58. * |
| 徐关庆等.汽车电镀使用技术 1.北京理工大学出版社,1999,160-162. |
| 徐关庆等.汽车电镀使用技术 1.北京理工大学出版社,1999,160-162. * |
| 李天佑，李飞.浅谈井式电镀硬铬.电镀与精饰27 3.2005,27(3),38-39. |
| 李天佑,李飞.浅谈井式电镀硬铬.电镀与精饰27 3.2005,27(3),38-39. * |
| 黄林彬.自动变速箱系统 1.福建科学技术出版社,2001,5. |
| 黄林彬.自动变速箱系统 1.福建科学技术出版社,2001,5. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10077484B2 (en) | 2016-10-28 | 2018-09-18 | Schaeffler Technologies AG & Co. KG | Method for producing a planetary gear shaft having increased hardness |
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| Publication number | Publication date |
|---|---|
| CN101092722A (en) | 2007-12-26 |
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