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GB730090A - Improvements in or relating to methods of forming lead-tin alloy surface layers, andarticles provided with such surface layers - Google Patents

Improvements in or relating to methods of forming lead-tin alloy surface layers, andarticles provided with such surface layers

Info

Publication number
GB730090A
GB730090A GB2787751A GB2787751A GB730090A GB 730090 A GB730090 A GB 730090A GB 2787751 A GB2787751 A GB 2787751A GB 2787751 A GB2787751 A GB 2787751A GB 730090 A GB730090 A GB 730090A
Authority
GB
United Kingdom
Prior art keywords
lead
tin
surface layers
andarticles
relating
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
GB2787751A
Inventor
Oswald Wright
John Kenneth Wilson
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.)
Napier Turbochargers Ltd
Original Assignee
D Napier and Son Ltd
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 D Napier and Son Ltd filed Critical D Napier and Son Ltd
Priority to GB2787751A priority Critical patent/GB730090A/en
Publication of GB730090A publication Critical patent/GB730090A/en
Expired legal-status Critical Current

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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/54—Contact plating, i.e. electroless electrochemical plating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Cell Electrode Carriers And Collectors (AREA)

Abstract

730,090. Forming lead-tin alloy surface layers. NAPIER & SON, Ltd., D. Nov. 20, 1952 [Nov. 28, 1951], No. 27877/51. Class 41. Successive layers of tin and lead are deposited by immersing an article in turn in electrolytes containing tin and lead compounds respectively, and arranging a contact element of a metallic substance which is positive relative to tin and lead respectively in the electro-motive series in contact with the electrolyte and in electrical contact with the article, the resulting layers subsequently being at least partly alloyed by diffusion by heat treatment below the melting points of the two metals and the alloy produced. A tin layer is preferably deposited first, and the tin electrolyte may be a solution of sodium stannate and caustic soda; the lead solution may contain lead fluoborate. The contact element may be aluminium or aluminium alloy. The metals may be alloyed by heating at 140‹ C. for 2 hours. Specification 730,089 is referred to.
GB2787751A 1951-11-28 1951-11-28 Improvements in or relating to methods of forming lead-tin alloy surface layers, andarticles provided with such surface layers Expired GB730090A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2787751A GB730090A (en) 1951-11-28 1951-11-28 Improvements in or relating to methods of forming lead-tin alloy surface layers, andarticles provided with such surface layers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2787751A GB730090A (en) 1951-11-28 1951-11-28 Improvements in or relating to methods of forming lead-tin alloy surface layers, andarticles provided with such surface layers

Publications (1)

Publication Number Publication Date
GB730090A true GB730090A (en) 1955-05-18

Family

ID=10266743

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2787751A Expired GB730090A (en) 1951-11-28 1951-11-28 Improvements in or relating to methods of forming lead-tin alloy surface layers, andarticles provided with such surface layers

Country Status (1)

Country Link
GB (1) GB730090A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4351704A (en) * 1980-02-20 1982-09-28 Hitachi, Ltd. Production method for solder coated conductor wiring

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4351704A (en) * 1980-02-20 1982-09-28 Hitachi, Ltd. Production method for solder coated conductor wiring

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