GB476720A - Improvements in or relating to the chromium plating of aluminium and aluminium alloys - Google Patents
Improvements in or relating to the chromium plating of aluminium and aluminium alloysInfo
- Publication number
- GB476720A GB476720A GB9327/37A GB932737A GB476720A GB 476720 A GB476720 A GB 476720A GB 9327/37 A GB9327/37 A GB 9327/37A GB 932737 A GB932737 A GB 932737A GB 476720 A GB476720 A GB 476720A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- relating
- nickel
- chromium plating
- alloys
- 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
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
- C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
Aluminium or an aluminium alloy is coated with a thin layer of iron by immersion in a bath containing ferrous chloride hexahydrate and commercial, 35-38 per cent, hydrochloric acid, preferably in equal proportions, at a temperature above 80 DEG C., preferably 92-95 DEG C. It is then electroplated first with a thin layer of nickel, nickel-copper or other nickel alloy and then with a thicker layer of chromium. Specification 465,078 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE476720X | 1936-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB476720A true GB476720A (en) | 1937-12-14 |
Family
ID=6542032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9327/37A Expired GB476720A (en) | 1936-04-07 | 1937-04-01 | Improvements in or relating to the chromium plating of aluminium and aluminium alloys |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR819595A (en) |
| GB (1) | GB476720A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2702785A (en) * | 1950-06-16 | 1955-02-22 | Metallgesellschaft Ag | Process of producing hard chromium platings on light metals |
-
1937
- 1937-03-22 FR FR819595D patent/FR819595A/en not_active Expired
- 1937-04-01 GB GB9327/37A patent/GB476720A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2702785A (en) * | 1950-06-16 | 1955-02-22 | Metallgesellschaft Ag | Process of producing hard chromium platings on light metals |
Also Published As
| Publication number | Publication date |
|---|---|
| FR819595A (en) | 1937-10-21 |
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