GB786174A - Improvements in or relating to chemical nickel plating process - Google Patents

Improvements in or relating to chemical nickel plating process

Info

Publication number
GB786174A
GB786174A GB585755A GB585755A GB786174A GB 786174 A GB786174 A GB 786174A GB 585755 A GB585755 A GB 585755A GB 585755 A GB585755 A GB 585755A GB 786174 A GB786174 A GB 786174A
Authority
GB
United Kingdom
Prior art keywords
hypophosphite
sodium
nickel
chemical nickel
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
GB585755A
Inventor
Paul Talmey
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.)
General American Transportation Corp
Original Assignee
General American Transportation Corp
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 General American Transportation Corp filed Critical General American Transportation Corp
Priority to GB585755A priority Critical patent/GB786174A/en
Publication of GB786174A publication Critical patent/GB786174A/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
    • C23C18/16—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 by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
    • C23C18/34—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents
    • C23C18/36—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents using hypophosphites

Landscapes

  • Chemical & Material Sciences (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)
  • Chemically Coating (AREA)

Abstract

A chemical nickel-plating bath of the nickel cation-hypophosphite anion type is regenerated by the addition thereto, continuously or periodically, of soluble alkali, e.g. sodium hydroxide or bicarbonate, nickel hypophosphite, and hypophosphorous acid and/or an alkali- or alkaline earth-metal hypophosphite, e.g. sodium hypophosphite. The bath may be formed using a nickel salt selected from the chloride, sulphate, acetate and hypophosphite, a hypophosphite selected from hypophosphorous acid and sodium, potassium and calcium hypophosphite, and organic additives and stabilizing cations such as those described in Specifications 785,694, 785,696 and 786,175; its pH may be adjusted with sodium hydroxide and sodium chloride. Plating may be performed using the continuous system of Specification 785,693.
GB585755A 1955-02-28 1955-02-28 Improvements in or relating to chemical nickel plating process Expired GB786174A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB585755A GB786174A (en) 1955-02-28 1955-02-28 Improvements in or relating to chemical nickel plating process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB585755A GB786174A (en) 1955-02-28 1955-02-28 Improvements in or relating to chemical nickel plating process

Publications (1)

Publication Number Publication Date
GB786174A true GB786174A (en) 1957-11-13

Family

ID=9803936

Family Applications (1)

Application Number Title Priority Date Filing Date
GB585755A Expired GB786174A (en) 1955-02-28 1955-02-28 Improvements in or relating to chemical nickel plating process

Country Status (1)

Country Link
GB (1) GB786174A (en)

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