JPS5524947A - Formation of nontransparent anodic oxide film in aluminium-clad material - Google Patents
Formation of nontransparent anodic oxide film in aluminium-clad materialInfo
- Publication number
- JPS5524947A JPS5524947A JP9713778A JP9713778A JPS5524947A JP S5524947 A JPS5524947 A JP S5524947A JP 9713778 A JP9713778 A JP 9713778A JP 9713778 A JP9713778 A JP 9713778A JP S5524947 A JPS5524947 A JP S5524947A
- Authority
- JP
- Japan
- Prior art keywords
- clad material
- oxide film
- nontransparent
- anodic oxide
- aluminium
- 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: To form nontransparent anodic oxide film having beautiful appearance on the Cu-containing Al-alloy side with simple process without necessity for high voltage by the application of a low-voltage electrolytic treatment following an anodic oxidation treatment on a Cu-containing Al alloy-clad material.
CONSTITUTION: An Al-clad material consisting of an Al-based alloy in which at least one-side material contains 0.5 to 4.0% Cu is dipped in an oxalic acid electrolytic bath containing 2 to 3% oxalic acid and also provided with a carbon plate or stainless steel as cathode, where the Al-cald material is subjected to an anodic oxidation treatment for 10 to 100 min. at 65 to 90 V. Then, a 5 to 30 min. electrolytic treatment is made by lowering the voltage to 5 to 30 V during electrolysis. Thus, a beautiful nontransparent anodic oxide film is formed on the surface of the Cu-containing Al-based alloy side of Al-clad material.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9713778A JPS5524947A (en) | 1978-08-08 | 1978-08-08 | Formation of nontransparent anodic oxide film in aluminium-clad material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9713778A JPS5524947A (en) | 1978-08-08 | 1978-08-08 | Formation of nontransparent anodic oxide film in aluminium-clad material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5524947A true JPS5524947A (en) | 1980-02-22 |
Family
ID=14184173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9713778A Pending JPS5524947A (en) | 1978-08-08 | 1978-08-08 | Formation of nontransparent anodic oxide film in aluminium-clad material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5524947A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56146895A (en) * | 1980-04-14 | 1981-11-14 | Furukawa Alum Co Ltd | Aluminum alloy which colors to pure black color |
CN109208055A (en) * | 2017-06-30 | 2019-01-15 | 比亚迪股份有限公司 | A kind of aluminium alloy and preparation method thereof and handset shell |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52117844A (en) * | 1976-03-30 | 1977-10-03 | Showa Aluminium Co Ltd | Process for forming opaque anodized coating of aluminum |
JPS52121686A (en) * | 1976-12-27 | 1977-10-13 | Macdermid Inc | Alminium*resin laminate and its production |
JPS52156737A (en) * | 1976-06-24 | 1977-12-27 | Yamazaki Keiichiro | Surface treatment of cast aluminum |
-
1978
- 1978-08-08 JP JP9713778A patent/JPS5524947A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52117844A (en) * | 1976-03-30 | 1977-10-03 | Showa Aluminium Co Ltd | Process for forming opaque anodized coating of aluminum |
JPS52156737A (en) * | 1976-06-24 | 1977-12-27 | Yamazaki Keiichiro | Surface treatment of cast aluminum |
JPS52121686A (en) * | 1976-12-27 | 1977-10-13 | Macdermid Inc | Alminium*resin laminate and its production |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56146895A (en) * | 1980-04-14 | 1981-11-14 | Furukawa Alum Co Ltd | Aluminum alloy which colors to pure black color |
CN109208055A (en) * | 2017-06-30 | 2019-01-15 | 比亚迪股份有限公司 | A kind of aluminium alloy and preparation method thereof and handset shell |
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