JPS54101729A - Surface treating method for aluminum and its alloy - Google Patents
Surface treating method for aluminum and its alloyInfo
- Publication number
- JPS54101729A JPS54101729A JP843678A JP843678A JPS54101729A JP S54101729 A JPS54101729 A JP S54101729A JP 843678 A JP843678 A JP 843678A JP 843678 A JP843678 A JP 843678A JP S54101729 A JPS54101729 A JP S54101729A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- parts
- surfactant
- pref
- bath
- 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.)
- Granted
Links
Landscapes
- Electrochemical Coating By Surface Reaction (AREA)
Abstract
PURPOSE: To efficiently surface treat Al or its alloy with no environmental pollution problem by electro-polishing the Al or its alloy in a bath obtd. by adding a water sol. high molecular cpd. and a surfactant to an aq. soln. of sulfuric acid, followed by formation of an oxide film at a different current density.
CONSTITUTION: Current is supplied to Al or its alloy as an electrode at an electrode current density of 2W100 A/dm2 for 30 secW5 min in a bath soln. of 50W100, pref. 60W80°C consisting of 25W40 parts of water, 20W50 parts of sulfuric acid, 20W50 parts of a water sol. high molecular cpd. with an average MW of 200W400, e.g. polyethylene glycol, and 0.1W5 parts of a surfactant, pref. a mixt. of a cationic surfactant and an anionic or nonionic surfactant to electro-polish the Al or its alloy. Next current is supplied in the same bath of 30W80°C at an electrode current density of 0.3W20, pref. 1.5W6 A/dm2 and an electrolytic voltage of 4W20 V for 5W30 min to form an oxide film. The current may be DC, AC or DV-AC.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP843678A JPS6039758B2 (en) | 1978-01-28 | 1978-01-28 | Surface treatment method for aluminum and its alloys |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP843678A JPS6039758B2 (en) | 1978-01-28 | 1978-01-28 | Surface treatment method for aluminum and its alloys |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54101729A true JPS54101729A (en) | 1979-08-10 |
JPS6039758B2 JPS6039758B2 (en) | 1985-09-07 |
Family
ID=11693064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP843678A Expired JPS6039758B2 (en) | 1978-01-28 | 1978-01-28 | Surface treatment method for aluminum and its alloys |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6039758B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5751300A (en) * | 1980-09-08 | 1982-03-26 | Honda Motor Co Ltd | Method for electrolytic polishing of aluminum or aluminum alloy |
CN108728893A (en) * | 2017-04-13 | 2018-11-02 | 通用电气公司 | Electropolishing for brush carriage equipment and anodization process |
-
1978
- 1978-01-28 JP JP843678A patent/JPS6039758B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5751300A (en) * | 1980-09-08 | 1982-03-26 | Honda Motor Co Ltd | Method for electrolytic polishing of aluminum or aluminum alloy |
CN108728893A (en) * | 2017-04-13 | 2018-11-02 | 通用电气公司 | Electropolishing for brush carriage equipment and anodization process |
Also Published As
Publication number | Publication date |
---|---|
JPS6039758B2 (en) | 1985-09-07 |
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