GB621217A - Improvements in copper-tin alloy plating - Google Patents
Improvements in copper-tin alloy platingInfo
- Publication number
- GB621217A GB621217A GB19300/46A GB1930046A GB621217A GB 621217 A GB621217 A GB 621217A GB 19300/46 A GB19300/46 A GB 19300/46A GB 1930046 A GB1930046 A GB 1930046A GB 621217 A GB621217 A GB 621217A
- Authority
- GB
- United Kingdom
- Prior art keywords
- copper
- tin
- stannate
- mixture
- alkali metal
- 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
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
- C25D3/58—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of copper
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
621,217. Electro-plating. METAL & THERMIT CORPORATION. June 27, 1946, No. 19300. Convention date, Jan. 5. [Class 41] A method of regenerating a copper-tin alloy plating bath comprises adding to the bath a substance containing copper stannate either alone or as a major component. One or more of the compounds, copper carbonate, copper cyanide or copper hydroxide may be added to the copper stannate. The mixture may be prepared from the dry salts or by precipitation from solution, by adding for example copper sulphate to a solution containing an alkali metal stannate and one or more soluble salts, the anions of which form a precipitate with the copper of the copper sulphate. The mixture is then dissolved in an aqueous solution of alkali metal cyanide and an alkali metal hydroxide. The tin content of the mixture may be increased by the addition of hydrous tin oxide. The anodes are usually insoluble, but soluble copper or tin anodes may be used to provide some of the copper or tin content to the bath. Specification 571,641 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US639409A US2528601A (en) | 1946-01-05 | 1946-01-05 | Copper-tin alloy plating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB621217A true GB621217A (en) | 1949-04-06 |
Family
ID=24563974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19300/46A Expired GB621217A (en) | 1946-01-05 | 1946-06-27 | Improvements in copper-tin alloy plating |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2528601A (en) |
| GB (1) | GB621217A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997021852A1 (en) * | 1995-12-09 | 1997-06-19 | Metallveredlung Gmbh & Co. Kg | Method of forming an alloy layer |
| CN115233026B (en) * | 2022-05-30 | 2024-04-12 | 广东华诺勤耕材料科技有限公司 | Preparation method of copper-tin alloy |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR743797A (en) * | 1931-10-19 | 1933-04-06 | ||
| US1970549A (en) * | 1932-10-18 | 1934-08-21 | City Auto Stamping Co | Process of electroplating bronze |
| US2079842A (en) * | 1935-11-16 | 1937-05-11 | Cinamon Lionel | Electroplating bath composition and method of producing the same |
| US2216605A (en) * | 1938-03-30 | 1940-10-01 | Special Chemicals Corp | Electroplating |
| US2198365A (en) * | 1938-06-29 | 1940-04-23 | Special Chemicals Corp | Electroplating |
| NL69111C (en) * | 1939-10-25 |
-
1946
- 1946-01-05 US US639409A patent/US2528601A/en not_active Expired - Lifetime
- 1946-06-27 GB GB19300/46A patent/GB621217A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2528601A (en) | 1950-11-07 |
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