JPS55134189A - Surface processing method - Google Patents
Surface processing methodInfo
- Publication number
- JPS55134189A JPS55134189A JP4183679A JP4183679A JPS55134189A JP S55134189 A JPS55134189 A JP S55134189A JP 4183679 A JP4183679 A JP 4183679A JP 4183679 A JP4183679 A JP 4183679A JP S55134189 A JPS55134189 A JP S55134189A
- Authority
- JP
- Japan
- Prior art keywords
- plating
- lustless
- current density
- mainly composed
- chromic acid
- 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.)
- Pending
Links
Abstract
PURPOSE: Not to produce the crack on the plating surface, by using a specified plating bath mainly composed of chromic acid and controlling the liquid temperature and current density in a fixed range and then, carrying out lustless chromium plating and after that, finishing the surface.
CONSTITUTION: Lustless hard chromium plating is carried out under the following condition by using the plating bath contained a very small amount of additives stably supplying trivalent chromium in the water solution mainly composed of chromic acid. Solution temperature; 40W50°C, current density; 80W100A/dm2. After that, buff finishing of the surface of lustlessly plated material to be plated, is carried out until lustrous face is obtained. By the above method, plating face having no minute crack, is able to obtain.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4183679A JPS55134189A (en) | 1979-04-06 | 1979-04-06 | Surface processing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4183679A JPS55134189A (en) | 1979-04-06 | 1979-04-06 | Surface processing method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55134189A true JPS55134189A (en) | 1980-10-18 |
Family
ID=12619340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4183679A Pending JPS55134189A (en) | 1979-04-06 | 1979-04-06 | Surface processing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55134189A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103046085A (en) * | 2012-12-27 | 2013-04-17 | 南通市申海工业技术科技有限公司 | Chromium plating process of nuclear generator unit members |
CN105063676A (en) * | 2015-08-17 | 2015-11-18 | 内蒙古第一机械集团有限公司 | Method for electroplating hard chromium by using trivalent chromium |
-
1979
- 1979-04-06 JP JP4183679A patent/JPS55134189A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103046085A (en) * | 2012-12-27 | 2013-04-17 | 南通市申海工业技术科技有限公司 | Chromium plating process of nuclear generator unit members |
CN103046085B (en) * | 2012-12-27 | 2016-05-18 | 南通市申海工业技术科技有限公司 | Nuclear power generating sets member chrome-plated process |
CN105063676A (en) * | 2015-08-17 | 2015-11-18 | 内蒙古第一机械集团有限公司 | Method for electroplating hard chromium by using trivalent chromium |
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