JPS5511194A - Electrolytic coloring method of aluminum or aluminum alloy - Google Patents
Electrolytic coloring method of aluminum or aluminum alloyInfo
- Publication number
- JPS5511194A JPS5511194A JP7909779A JP7909779A JPS5511194A JP S5511194 A JPS5511194 A JP S5511194A JP 7909779 A JP7909779 A JP 7909779A JP 7909779 A JP7909779 A JP 7909779A JP S5511194 A JPS5511194 A JP S5511194A
- Authority
- JP
- Japan
- Prior art keywords
- acids
- organic
- anodic oxidation
- sulfuric acid
- aluminum
- 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 an even colored layer on Al surfaces through anodic oxidation treatment by adding the specific organic acids to an aqueous solution containing sulfosalicylic acid and sulfuric acid and using this as electrolyte for anodic oxidation coloring.
CONSTITUTION: A colored oxide film is formed on the surfaces of parts of Al or Al alloys by an anodic oxidation method. As the electrolyte, less than 6wt% of organic acids are added to the aqueous solution dissolving sulfosalicylic acid; 1 to 10wt% and sulfuric acid; 0.04 to 0.85% (but also contains the sulfuric acid in sulfosalicylic acid). As the organic acids, organic di- or tri-carboxylic acids of 3 to 6 in carbon number such as malonic acids, succinic acids, maleic acids, etc.; or organic hydroxycarboxlic acids of 2 to 6 in carbon number such as glycolic acids, lactic acids, tartaric acids, etc. are used. With the Al material as anode, electrolysis is accomplished at the mean current density of 1.5A/dm2 or under, whereby the oxide film of a beautiful yellowish brown color is evenly formed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7909779A JPS5511194A (en) | 1979-06-25 | 1979-06-25 | Electrolytic coloring method of aluminum or aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7909779A JPS5511194A (en) | 1979-06-25 | 1979-06-25 | Electrolytic coloring method of aluminum or aluminum alloy |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10589175A Division JPS5274543A (en) | 1975-09-03 | 1975-09-03 | Electrolytic bath for applying anodic pigmentation coating on aluminum or its alloy and electrolytic oxidation process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5511194A true JPS5511194A (en) | 1980-01-25 |
| JPS5641713B2 JPS5641713B2 (en) | 1981-09-30 |
Family
ID=13680368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7909779A Granted JPS5511194A (en) | 1979-06-25 | 1979-06-25 | Electrolytic coloring method of aluminum or aluminum alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5511194A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741191A (en) * | 2013-11-07 | 2014-04-23 | 北京星航机电装备有限公司 | Aluminum alloy anode oxidation film layer preparation method |
-
1979
- 1979-06-25 JP JP7909779A patent/JPS5511194A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741191A (en) * | 2013-11-07 | 2014-04-23 | 北京星航机电装备有限公司 | Aluminum alloy anode oxidation film layer preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5641713B2 (en) | 1981-09-30 |
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