GB877385A - Method of chromium plating aluminium or aluminium alloy - Google Patents
Method of chromium plating aluminium or aluminium alloyInfo
- Publication number
- GB877385A GB877385A GB36601/57A GB3660157A GB877385A GB 877385 A GB877385 A GB 877385A GB 36601/57 A GB36601/57 A GB 36601/57A GB 3660157 A GB3660157 A GB 3660157A GB 877385 A GB877385 A GB 877385A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- chromium plating
- alloy
- electroplated
- solution containing
- 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/12—Light metals
- C23G1/125—Light metals aluminium
-
- 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)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Electroplating Methods And Accessories (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
Before being electroplated with Cr, Al and Al alloy articles are treated in an aqueous solution containing a hexavalent Cr compound and an acid sulphate compound. As described, the articles are cleaned in aqueous H2SO4, immersed in a solution containing 1 lb of a composition consisting of 10% CrO3 and 90% NaHSO4 per gallon of water, and electroplated with Cr from a bath of the type disclosed in Specification 877,386
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US877385XA | 1957-06-27 | 1957-06-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB877385A true GB877385A (en) | 1961-09-13 |
Family
ID=22206954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36601/57A Expired GB877385A (en) | 1957-06-27 | 1957-11-25 | Method of chromium plating aluminium or aluminium alloy |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1226392B (en) |
GB (1) | GB877385A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0085771A2 (en) * | 1982-02-09 | 1983-08-17 | International Business Machines Corporation | Electrodeposition of chromium and its alloys |
US5436081A (en) * | 1991-02-18 | 1995-07-25 | Sumitomo Metal Industries, Ltd. | Plated aluminum sheet having improved spot weldability |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE919450C (en) * | 1952-12-18 | 1954-10-21 | Deinert & Co Spezialbetr E Fue | Process for the production of thick chrome coatings on aluminum and aluminum alloys, especially magnesium-containing aluminum alloys |
-
1957
- 1957-11-25 GB GB36601/57A patent/GB877385A/en not_active Expired
-
1958
- 1958-04-25 DE DEF25600A patent/DE1226392B/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0085771A2 (en) * | 1982-02-09 | 1983-08-17 | International Business Machines Corporation | Electrodeposition of chromium and its alloys |
US4507178A (en) * | 1982-02-09 | 1985-03-26 | International Business Machines Corporation | Electrodeposition of chromium and its alloys |
EP0085771A3 (en) * | 1982-02-09 | 1985-12-04 | International Business Machines Corporation | Electrodeposition of chromium and its alloys |
US5436081A (en) * | 1991-02-18 | 1995-07-25 | Sumitomo Metal Industries, Ltd. | Plated aluminum sheet having improved spot weldability |
Also Published As
Publication number | Publication date |
---|---|
DE1226392B (en) | 1966-10-06 |
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