JPS5635795A - Coloring method for aluminum or aluminum alloy - Google Patents
Coloring method for aluminum or aluminum alloyInfo
- Publication number
- JPS5635795A JPS5635795A JP11086979A JP11086979A JPS5635795A JP S5635795 A JPS5635795 A JP S5635795A JP 11086979 A JP11086979 A JP 11086979A JP 11086979 A JP11086979 A JP 11086979A JP S5635795 A JPS5635795 A JP S5635795A
- Authority
- JP
- Japan
- Prior art keywords
- film
- aluminum
- bath
- acid
- coloration
- 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
Landscapes
- Electrochemical Coating By Surface Reaction (AREA)
Abstract
PURPOSE: To produce a film having beautiful primary color, by the anodic oxidation of aluminum in a prescribed acidic soln., by AC electrolytic treatment of the aluminum in the same bath, then by performing electrolytic coloration.
CONSTITUTION: This method relates to the formation of a colored film, which is resistant to weather and wear, on the surface of aluminum or its alloy by the anodic oxidation with an aqueous soln. contg. one or more members among sulfuric acid, nitric acid, oxalic acid, sulfamic acid, ammonium hydrogensulfate to form a film. Then AC electrolytic treatment is performed in the same bath at a voltage lower than that for forming said film. Other org. or inorg. acid may be added to the bath. The coloration depends upon the conditions for AC electrolysis, i.e., the film varies remarkably by changing the composition or concn. of the bath. Preferably, the bath temp. is 30W70°C, treating time is form several tens of seconds to about 10min, the voltage is generatlly about 2W15V. Subsequently, the material is subjected to electrolytic coloration in metallic salt soln. thereby producing desired blue, yellow, green, violet, or greenish color.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11086979A JPS5635795A (en) | 1979-08-30 | 1979-08-30 | Coloring method for aluminum or aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11086979A JPS5635795A (en) | 1979-08-30 | 1979-08-30 | Coloring method for aluminum or aluminum alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5635795A true JPS5635795A (en) | 1981-04-08 |
Family
ID=14546748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11086979A Pending JPS5635795A (en) | 1979-08-30 | 1979-08-30 | Coloring method for aluminum or aluminum alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5635795A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58147592A (en) * | 1982-02-27 | 1983-09-02 | Mitsubishi Alum Co Ltd | Method for pigmenting aluminum or aluminum alloy |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5017302A (en) * | 1973-06-13 | 1975-02-24 | ||
| JPS531649A (en) * | 1976-06-26 | 1978-01-09 | Sankyo Aruminiumu Kougiyou Kk | Process for generating selffcolor anodic oxidation coatings on aluminum foil |
-
1979
- 1979-08-30 JP JP11086979A patent/JPS5635795A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5017302A (en) * | 1973-06-13 | 1975-02-24 | ||
| JPS531649A (en) * | 1976-06-26 | 1978-01-09 | Sankyo Aruminiumu Kougiyou Kk | Process for generating selffcolor anodic oxidation coatings on aluminum foil |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58147592A (en) * | 1982-02-27 | 1983-09-02 | Mitsubishi Alum Co Ltd | Method for pigmenting aluminum or aluminum alloy |
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