GB1172859A - Improvements in and relating to the Electrolytic Tin Coating of Steel Surfaces - Google Patents

Improvements in and relating to the Electrolytic Tin Coating of Steel Surfaces

Info

Publication number
GB1172859A
GB1172859A GB4637966A GB4637966A GB1172859A GB 1172859 A GB1172859 A GB 1172859A GB 4637966 A GB4637966 A GB 4637966A GB 4637966 A GB4637966 A GB 4637966A GB 1172859 A GB1172859 A GB 1172859A
Authority
GB
United Kingdom
Prior art keywords
steel
tin coating
relating
anodic
oct
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
GB4637966A
Inventor
Leonard Rhys Beard
David Russell Gabe
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.)
Steel Company of Wales Ltd
Original Assignee
Steel Company of Wales 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 Steel Company of Wales Ltd filed Critical Steel Company of Wales Ltd
Priority to GB4637966A priority Critical patent/GB1172859A/en
Publication of GB1172859A publication Critical patent/GB1172859A/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
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/34—Pretreatment of metallic surfaces to be electroplated
    • C25D5/36—Pretreatment of metallic surfaces to be electroplated of iron or steel

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

1,172,859. Pickling steel before electrotinning. STEEL CO. OF WALES Ltd. Oct. 12, 1967 [Oct. 17, 1966], No.46379/66. Heading C7B. In electro-tinning steel, the steel is first pickled in a bath containing only dilute aqueous nitric acid. Pickling may be effected either by simple immersion or by electrolysis using a nitric acid concentration of 1 to 100 g/1 at a temperature of 10 to 90‹C. The electrolytic action may be cathodic, anodic, preferably with the anodic stage last and with the coulomb level divided equally between the two stages. The electrolytic tinning may be effected in an acid phenolsulphonate or a sulphate bath and the tin coating may be reflowed by resistance heating.
GB4637966A 1966-10-17 1966-10-17 Improvements in and relating to the Electrolytic Tin Coating of Steel Surfaces Expired GB1172859A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4637966A GB1172859A (en) 1966-10-17 1966-10-17 Improvements in and relating to the Electrolytic Tin Coating of Steel Surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4637966A GB1172859A (en) 1966-10-17 1966-10-17 Improvements in and relating to the Electrolytic Tin Coating of Steel Surfaces

Publications (1)

Publication Number Publication Date
GB1172859A true GB1172859A (en) 1969-12-03

Family

ID=10441015

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4637966A Expired GB1172859A (en) 1966-10-17 1966-10-17 Improvements in and relating to the Electrolytic Tin Coating of Steel Surfaces

Country Status (1)

Country Link
GB (1) GB1172859A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees