JPS5524944A - Surface treatment of aluminium alloy - Google Patents
Surface treatment of aluminium alloyInfo
- Publication number
- JPS5524944A JPS5524944A JP9687778A JP9687778A JPS5524944A JP S5524944 A JPS5524944 A JP S5524944A JP 9687778 A JP9687778 A JP 9687778A JP 9687778 A JP9687778 A JP 9687778A JP S5524944 A JPS5524944 A JP S5524944A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- oxidation treatment
- anodic oxidation
- sulfonic acid
- majority
- 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 form a weather-resistant and uniform greyish black film by subjecting an Al alloy containing a majority of Fe in the form of Al6Fe in a specific amount to an anodic oxidation treatment in an aqueous colution containing an organic sulfonic acid and a small amount of sulfunic acid.
CONSTITUTION: Al is added 0.5 to 2.2% Fe ti precipitate the majority of Fe in the form of an intermetallic compound, Al6Fe, and then the Al alloy is deoiled, washed, and then subjected to an anodic oxidation treatment in an electrolyte by the usual method. The electrolyte used is prepared by adding 0.5 to 2.0% sulfuonic acid to a 5 to 20% organic sulfonic acid aqueous solution of sulfosalcylic acid, sulfophthalic acid, or cresol sulfonic acid. The conditions of anodic oxidation treatment include a liquid temperature of approx. 20°C and an anodic current density of 1.0 to 3.0A/dm2. Thus, colored anodically oxidized film which is of an uniform greyish black color and also excellent in weather resistance can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9687778A JPS6039759B2 (en) | 1978-08-09 | 1978-08-09 | Surface treatment method for aluminum alloy materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9687778A JPS6039759B2 (en) | 1978-08-09 | 1978-08-09 | Surface treatment method for aluminum alloy materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5524944A true JPS5524944A (en) | 1980-02-22 |
| JPS6039759B2 JPS6039759B2 (en) | 1985-09-07 |
Family
ID=14176639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9687778A Expired JPS6039759B2 (en) | 1978-08-09 | 1978-08-09 | Surface treatment method for aluminum alloy materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6039759B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57194294A (en) * | 1981-05-25 | 1982-11-29 | Nippon Light Metal Co Ltd | Production of gray-colored expanded aluminum material |
| WO2019098378A1 (en) * | 2017-11-17 | 2019-05-23 | 株式会社東亜電化 | Magnesium or aluminum metal member provided with black oxide coating, and method for manufacturing same |
-
1978
- 1978-08-09 JP JP9687778A patent/JPS6039759B2/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57194294A (en) * | 1981-05-25 | 1982-11-29 | Nippon Light Metal Co Ltd | Production of gray-colored expanded aluminum material |
| JPH0146598B2 (en) * | 1981-05-25 | 1989-10-09 | Nippon Light Metal Co | |
| WO2019098378A1 (en) * | 2017-11-17 | 2019-05-23 | 株式会社東亜電化 | Magnesium or aluminum metal member provided with black oxide coating, and method for manufacturing same |
| CN111344439A (en) * | 2017-11-17 | 2020-06-26 | 株式会社东亚电化 | Magnesium or aluminum metal part with black oxide coating and preparation method thereof |
| JPWO2019098378A1 (en) * | 2017-11-17 | 2020-10-01 | 株式会社東亜電化 | Magnesium or aluminum metal member having a black oxide film and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6039759B2 (en) | 1985-09-07 |
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