GB525364A - Improved process and apparatus for the electro-deposition of tin alloys - Google Patents

Improved process and apparatus for the electro-deposition of tin alloys

Info

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
Application number
GB556839A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB556839A priority Critical patent/GB525364A/en
Publication of GB525364A publication Critical patent/GB525364A/en
Expired legal-status Critical Current

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.
GB556839A 1939-02-20 1939-02-20 Improved process and apparatus for the electro-deposition of tin alloys Expired GB525364A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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