GB438228A - A new or improved process for the plating of aluminium - Google Patents
A new or improved process for the plating of aluminiumInfo
- Publication number
- GB438228A GB438228A GB2452234A GB2452234A GB438228A GB 438228 A GB438228 A GB 438228A GB 2452234 A GB2452234 A GB 2452234A GB 2452234 A GB2452234 A GB 2452234A GB 438228 A GB438228 A GB 438228A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- gms
- film
- per litre
- electroplating
- 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
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
- C25D5/42—Pretreatment of metallic surfaces to be electroplated of light metals
- C25D5/44—Aluminium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemically Coating (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
438,228. Electroplating. LONDON ALUMINIUM CO., Ltd., 57, Westwood Road, Witton, Birmingham, and BURFORD, W. A., Glencairn, Walmly Road, Sutton Coldfield. Aug. 25, 1934, No. 24522. [Class 41] Aluminium is prepared for electroplating by immersion in a concentrated solution of a metallic salt whereby a film of the metal is deposited ; the film is thereafter dissolved in an acid bath leaving an oxide free aluminium surface which is then rinsed in water and subjected to the main plating operation while still wet. Suitable minimum concentrations for the baths employed in the immersion treatment are (i) 200 gms. per litre ferric chloride, (ii) 400 gms. per litre crystallized nickel chloride or (iii) 700 gms. per litre crystallized nickel fluoborate, each at ordinary temperature. Nitric or nitro-sulphuric acid may be used for dissolution of the film. Chromium may be deposited directly on a surface so prepared.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2452234A GB438228A (en) | 1934-08-25 | 1934-08-25 | A new or improved process for the plating of aluminium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2452234A GB438228A (en) | 1934-08-25 | 1934-08-25 | A new or improved process for the plating of aluminium |
Publications (1)
Publication Number | Publication Date |
---|---|
GB438228A true GB438228A (en) | 1935-11-13 |
Family
ID=10212968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2452234A Expired GB438228A (en) | 1934-08-25 | 1934-08-25 | A new or improved process for the plating of aluminium |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB438228A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE762716C (en) * | 1939-12-17 | 1953-03-16 | Versuchsanstalt Fuer Luftfahrt | Process for roughening the surfaces of objects made of aluminum alloys for the purpose of applying firmly adhering galvanic chromium deposits |
US4360411A (en) * | 1978-03-31 | 1982-11-23 | Societe De Vente De L'aluminium Pechiney | Aluminum electrical contacts and method of making same |
-
1934
- 1934-08-25 GB GB2452234A patent/GB438228A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE762716C (en) * | 1939-12-17 | 1953-03-16 | Versuchsanstalt Fuer Luftfahrt | Process for roughening the surfaces of objects made of aluminum alloys for the purpose of applying firmly adhering galvanic chromium deposits |
US4360411A (en) * | 1978-03-31 | 1982-11-23 | Societe De Vente De L'aluminium Pechiney | Aluminum electrical contacts and method of making same |
US4408110A (en) * | 1978-03-31 | 1983-10-04 | Societe De Vente De L'aluminium Pechiney | Aluminum electrical contacts and method of making same |
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