JPS5675593A - Electrolytic coloring method of aluminum - Google Patents
Electrolytic coloring method of aluminumInfo
- Publication number
- JPS5675593A JPS5675593A JP15107679A JP15107679A JPS5675593A JP S5675593 A JPS5675593 A JP S5675593A JP 15107679 A JP15107679 A JP 15107679A JP 15107679 A JP15107679 A JP 15107679A JP S5675593 A JPS5675593 A JP S5675593A
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic
- bath
- org
- thence
- electrolytic treatment
- 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 form colored films of decorative and colorful tones by anodizing Al then subjecting the same to AC electrolytic treatment in a sulfuric acid bath by the use of the specific current densities and frequencies thence subjecting the same to AC electrolytic treatment in the specific. org. bath.
CONSTITUTION: Al is subjected to DC electrolytic treatment in a sulfuric acid bath to form an anodic oxidation film on the surface. Thence, it is electrolytically treated in a sulfuric acid bath by the AC of 20W2,000Hz in frequency (f), and 6.5×10-4× f≤i≤4.3×10-3×f+0.4 in current density (i) until the electrolytic voltage reaches a fixed value of ≤3V, whereby the oxide film is modified. Thence, it is subjected to predetermined Ac electrolytic treatment within a 3W18V range in an electrolytic bath contg. org. sulfonic acid such as propane sulfonic acid and org. tin sulfonate, whereby a colored film is formed. In this method, various colors such as golden yellow, brown, purple, bluish green, green and yellowish green are formed depending upon the degrees of modification of the oxide films in the intermediate treatment.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15107679A JPS5675593A (en) | 1979-11-21 | 1979-11-21 | Electrolytic coloring method of aluminum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15107679A JPS5675593A (en) | 1979-11-21 | 1979-11-21 | Electrolytic coloring method of aluminum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5675593A true JPS5675593A (en) | 1981-06-22 |
Family
ID=15510779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15107679A Pending JPS5675593A (en) | 1979-11-21 | 1979-11-21 | Electrolytic coloring method of aluminum |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5675593A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992018667A1 (en) * | 1991-04-10 | 1992-10-29 | Novamax Technologies Holdings Inc. | Method for obtaining by electrolytic process a range of grey colors on anodized aluminium |
| ES2052455A1 (en) * | 1992-12-31 | 1994-07-01 | Novamax Tech Holdings | A process for obtaining a range of colours of the visible spectrum using electrolysis on anodized aluminium. |
| CN110158136A (en) * | 2019-06-20 | 2019-08-23 | 浙江康飞思医疗科技有限公司 | A kind of aluminium electrolytic coloring titanium color surface treatment method |
-
1979
- 1979-11-21 JP JP15107679A patent/JPS5675593A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992018667A1 (en) * | 1991-04-10 | 1992-10-29 | Novamax Technologies Holdings Inc. | Method for obtaining by electrolytic process a range of grey colors on anodized aluminium |
| ES2052455A1 (en) * | 1992-12-31 | 1994-07-01 | Novamax Tech Holdings | A process for obtaining a range of colours of the visible spectrum using electrolysis on anodized aluminium. |
| CN110158136A (en) * | 2019-06-20 | 2019-08-23 | 浙江康飞思医疗科技有限公司 | A kind of aluminium electrolytic coloring titanium color surface treatment method |
| CN110158136B (en) * | 2019-06-20 | 2020-06-16 | 浙江康飞思医疗科技有限公司 | Aluminum electrolytic coloring titanium golden surface treatment method |
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