JPS57188698A - Surface treatment of aluminum - Google Patents
Surface treatment of aluminumInfo
- Publication number
- JPS57188698A JPS57188698A JP7446581A JP7446581A JPS57188698A JP S57188698 A JPS57188698 A JP S57188698A JP 7446581 A JP7446581 A JP 7446581A JP 7446581 A JP7446581 A JP 7446581A JP S57188698 A JPS57188698 A JP S57188698A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- anodic
- oxidized film
- electrolyzing
- warm water
- 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 improve the throwing power and uniformity of coloring and to make the reproduction of tones sure and easy in a method of electrolyzing the Al formed with an anodic oxidation film with a bath of phosphoric acid or the like prior to an electrolytic coloring treatment by rinsing the Al with warm water after said electrolyzing.
CONSTITUTION: The anodic-oxidized film formed on Al is electrolyzed in a bath consisting essentially of ≥1 kind of org. acids contg. OH or COOH groups, orthophosphoric acid, pyrophosphoric acid, phosphorous acid, chromic acid, sulfuric acid amide, high concn. sulfuric acid of or their salts ≥40V/V%. Thereafer, the Al changed of the properties of the anodic-oxidized film is rinsed with warm water, by which the oxidized film is made uniform over the entire part of the Al while maintaining its activity even with the rugged Al in particular. As a result, variances in the deposition of metals in the electrolytic coloring of a post stage are eliminated.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7446581A JPS6020478B2 (en) | 1981-05-18 | 1981-05-18 | Aluminum surface treatment method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7446581A JPS6020478B2 (en) | 1981-05-18 | 1981-05-18 | Aluminum surface treatment method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57188698A true JPS57188698A (en) | 1982-11-19 |
JPS6020478B2 JPS6020478B2 (en) | 1985-05-22 |
Family
ID=13548025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7446581A Expired JPS6020478B2 (en) | 1981-05-18 | 1981-05-18 | Aluminum surface treatment method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6020478B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5956596A (en) * | 1982-09-24 | 1984-04-02 | Nippon Light Metal Co Ltd | Manufacture of colored aluminum material |
JPS60110895A (en) * | 1983-11-21 | 1985-06-17 | Nippon Alum Mfg Co Ltd:The | Electrolytic coloring method of aluminum and aluminum alloy |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6029751U (en) * | 1983-08-05 | 1985-02-28 | ダイハツ工業株式会社 | Reinforcement structure of rear seat belt anchor |
-
1981
- 1981-05-18 JP JP7446581A patent/JPS6020478B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5956596A (en) * | 1982-09-24 | 1984-04-02 | Nippon Light Metal Co Ltd | Manufacture of colored aluminum material |
JPS60110895A (en) * | 1983-11-21 | 1985-06-17 | Nippon Alum Mfg Co Ltd:The | Electrolytic coloring method of aluminum and aluminum alloy |
JPS633038B2 (en) * | 1983-11-21 | 1988-01-21 | Nippon Aluminium Mfg |
Also Published As
Publication number | Publication date |
---|---|
JPS6020478B2 (en) | 1985-05-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees | ||
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |