GB525364A - Improved process and apparatus for the electro-deposition of tin alloys - Google Patents
Improved process and apparatus for the electro-deposition of tin alloysInfo
- Publication number
- GB525364A GB525364A GB556839A GB556839A GB525364A GB 525364 A GB525364 A GB 525364A GB 556839 A GB556839 A GB 556839A GB 556839 A GB556839 A GB 556839A GB 525364 A GB525364 A GB 525364A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tin
- anode
- per
- alloys
- electrodeposition
- 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
- C25D3/60—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of tin
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
525,364. Electrodeposition of tin alloys. BAIER, S. W., and MACNAUGHTAN, D. J. Feb. 20, 1939, No. 5568. [Class 41] In electrodeposition of alloys of tin, e.g., of over 30 per cent. tin with copper, nickel, cobalt, cadmium, zinc, antimony, or other metals which can be co-deposited with tin in alkaline solutions, separate anodes of tin and the alloying metal are used in separate circuits the tin anode being polarized by a coating of oxide. The oxide may be obtained by use of excessive current density in the alloy plating bath, by gradually lowering the tin anode into the plating solution with the current on, or by pre-treatment electrolytically in weak alkaline solution, by immersion in an oxidizing solution, or by heat treatment. The process being thus conducted so as to inhibit the tendency of the tin to dissolve as divalent salt instead of tetravalent, increases the coherence of the coatings. Alkali tartrates, e.g., as Rochelle salt, are added to the plating bath to improve the appearance of the alloy deposit. In an example a plating solution contains stannate, cuprocyanide, hydroxide, and cyanide of sodium, and Rochelle salts, anode current densities being up to 20 amps. per sq. feet and cathode up to 30 amps. per sq. feet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB556839A GB525364A (en) | 1939-02-20 | 1939-02-20 | Improved process and apparatus for the electro-deposition of tin alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB556839A GB525364A (en) | 1939-02-20 | 1939-02-20 | Improved process and apparatus for the electro-deposition of tin alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB525364A true GB525364A (en) | 1940-08-27 |
Family
ID=9798560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB556839A Expired GB525364A (en) | 1939-02-20 | 1939-02-20 | Improved process and apparatus for the electro-deposition of tin alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB525364A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2796394A (en) * | 1954-11-22 | 1957-06-18 | Clevitc Corp | Separating and recovering nonferrous alloys from ferrous materials coated therewith |
| US7472927B2 (en) | 2001-12-24 | 2009-01-06 | Hunting Oilfield Services (Uk) Ltd. | Tubular member having an anti-galling coating |
-
1939
- 1939-02-20 GB GB556839A patent/GB525364A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2796394A (en) * | 1954-11-22 | 1957-06-18 | Clevitc Corp | Separating and recovering nonferrous alloys from ferrous materials coated therewith |
| US7472927B2 (en) | 2001-12-24 | 2009-01-06 | Hunting Oilfield Services (Uk) Ltd. | Tubular member having an anti-galling coating |
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