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GB656814A - Improved method of producing a metallic coating on articles of magnesium and magnesium-base alloys - Google Patents

Improved method of producing a metallic coating on articles of magnesium and magnesium-base alloys

Info

Publication number
GB656814A
GB656814A GB2966148A GB2966148A GB656814A GB 656814 A GB656814 A GB 656814A GB 2966148 A GB2966148 A GB 2966148A GB 2966148 A GB2966148 A GB 2966148A GB 656814 A GB656814 A GB 656814A
Authority
GB
United Kingdom
Prior art keywords
magnesium
zinc
base alloys
articles
producing
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
GB2966148A
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Priority to GB2966148A priority Critical patent/GB656814A/en
Publication of GB656814A publication Critical patent/GB656814A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/34Pretreatment of metallic surfaces to be electroplated
    • C25D5/42Pretreatment of metallic surfaces to be electroplated of light metals

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)

Abstract

Magnesium or magnesium-base alloys are coated with zinc by treating them with an aqueous alkaline solution having a pH of 8-11 formed by dissolving in water an alkali metal pyrophosphate and the acetate, borate, bromide, chloride, cyanide, fluoride or sulphate of zinc. Sodium or ferric fluoride or ferric oxalate may also be present. The zinc-coated surface may be used as a base for electroplating, e.g. with silver, gold, copper, cadmium or tin, and further metallic coatings, e.g. cadmium, chromium, nickel, silver or zinc, may follow. Prior to coating the surface may be cleaned with acetic or hydrochloric acid solutions or a solution of aluminium chloride.
GB2966148A 1948-11-15 1948-11-15 Improved method of producing a metallic coating on articles of magnesium and magnesium-base alloys Expired GB656814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2966148A GB656814A (en) 1948-11-15 1948-11-15 Improved method of producing a metallic coating on articles of magnesium and magnesium-base alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2966148A GB656814A (en) 1948-11-15 1948-11-15 Improved method of producing a metallic coating on articles of magnesium and magnesium-base alloys

Publications (1)

Publication Number Publication Date
GB656814A true GB656814A (en) 1951-09-05

Family

ID=10295110

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2966148A Expired GB656814A (en) 1948-11-15 1948-11-15 Improved method of producing a metallic coating on articles of magnesium and magnesium-base alloys

Country Status (1)

Country Link
GB (1) GB656814A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140461A (en) * 1983-05-09 1984-11-28 Alcan Int Ltd Deposition of zinc on aluminuim

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140461A (en) * 1983-05-09 1984-11-28 Alcan Int Ltd Deposition of zinc on aluminuim

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