GB1508158A - Methods of producing coloured anodised materials - Google Patents
Methods of producing coloured anodised materialsInfo
- Publication number
- GB1508158A GB1508158A GB4570875A GB4570875A GB1508158A GB 1508158 A GB1508158 A GB 1508158A GB 4570875 A GB4570875 A GB 4570875A GB 4570875 A GB4570875 A GB 4570875A GB 1508158 A GB1508158 A GB 1508158A
- Authority
- GB
- United Kingdom
- Prior art keywords
- materials
- methods
- nov
- sec
- duration
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/14—Producing integrally coloured layers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
1508158 Colour anodizing aluminium RIKEN KEIKINZOKU KOGYO KK 4 Nov 1975 [5 Nov 1974] 45708/75 Heading C7B Al (alloy) is colour-anodized in 8-30 wt. per cent H 2 SO 4 containing 3-5 g/l Al<SP>3+</SP> as a resistivity control agent using pulsating voltage with peaks of 25-45 V and a duration of 5-70 m sec. The ratio of pulse frequency (per m. sec) to duration is 2-7, and the current density may be 2-8 A/dm<SP>2</SP>. The Al alloy may contain Zn and Mg in a Zn/Mg ratio < 5. Conventional washing and degreasing are used, but pre-etching in NaOH may be omitted. Pulses of alternating polarity may be used.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12738774A JPS5123532B2 (en) | 1974-11-05 | 1974-11-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1508158A true GB1508158A (en) | 1978-04-19 |
Family
ID=14958721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4570875A Expired GB1508158A (en) | 1974-11-05 | 1975-11-04 | Methods of producing coloured anodised materials |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS5123532B2 (en) |
| GB (1) | GB1508158A (en) |
-
1974
- 1974-11-05 JP JP12738774A patent/JPS5123532B2/ja not_active Expired
-
1975
- 1975-11-04 GB GB4570875A patent/GB1508158A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS50140528A (en) | 1975-11-11 |
| JPS5123532B2 (en) | 1976-07-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |