GB1090840A - Improvements in or relating to the anodising of aluminium and aluminium alloys - Google Patents
Improvements in or relating to the anodising of aluminium and aluminium alloysInfo
- Publication number
- GB1090840A GB1090840A GB2603765A GB2603765A GB1090840A GB 1090840 A GB1090840 A GB 1090840A GB 2603765 A GB2603765 A GB 2603765A GB 2603765 A GB2603765 A GB 2603765A GB 1090840 A GB1090840 A GB 1090840A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- anodising
- relating
- alloys
- bath
- 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)
- Cell Electrode Carriers And Collectors (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
In a method of anodizing aluminium and aluminium alloys using an acid eletrolyte a pulsating current of electricity is passed through the bath. The anodic coating thus formed may be coloured. The acid bath may comprize sulphuric, oxalic or chromic acids. The current pulses may be of square waveform and preferably have a make to break ratio of 1:5. The make period may range from 1 to 100 milliseconds.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2603765A GB1090840A (en) | 1965-06-19 | 1965-06-19 | Improvements in or relating to the anodising of aluminium and aluminium alloys |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2603765A GB1090840A (en) | 1965-06-19 | 1965-06-19 | Improvements in or relating to the anodising of aluminium and aluminium alloys |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1090840A true GB1090840A (en) | 1967-11-15 |
Family
ID=10237361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2603765A Expired GB1090840A (en) | 1965-06-19 | 1965-06-19 | Improvements in or relating to the anodising of aluminium and aluminium alloys |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1090840A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3983014A (en) * | 1974-12-16 | 1976-09-28 | The Scionics Corporation | Anodizing means and techniques |
US4144142A (en) * | 1975-11-04 | 1979-03-13 | Riken Keikinzoku Kogyo Kabushiki Kaisha | Method for producing colored anodic film on aluminum-based material |
US4399021A (en) * | 1980-09-26 | 1983-08-16 | American Hoechst Corporation | Novel electrolytes for electrochemically treated metal plates |
-
1965
- 1965-06-19 GB GB2603765A patent/GB1090840A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3983014A (en) * | 1974-12-16 | 1976-09-28 | The Scionics Corporation | Anodizing means and techniques |
US4144142A (en) * | 1975-11-04 | 1979-03-13 | Riken Keikinzoku Kogyo Kabushiki Kaisha | Method for producing colored anodic film on aluminum-based material |
US4399021A (en) * | 1980-09-26 | 1983-08-16 | American Hoechst Corporation | Novel electrolytes for electrochemically treated metal plates |
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