Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Coating is discontinuous single metal or alloy layer
Patent
1993-02-17
1994-03-29
Niebling, John
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Coating is discontinuous single metal or alloy layer
156151, 156322, 205154, 205156, 205178, 205196, 205199, 205226, C25D 510
Patent
active
052981495
ABSTRACT:
A copolyester film was laminated onto a steel sheet, this sheet having double layers consisting of a lower layer of metallic chromium and an upper layer of hydrated chromium oxide on a tin plated steel sheet in which 5 to 40% of the surface of the steel sheet is covered with plated tin and the remainder of the steel surface is exposed and the space between plated tin particles is 0.5 to 50 .mu.m, and a method for production of this copolyester resin film laminated steel sheet which comprises: (a) electroplating with tin under restricted conditions, (b) formation of said double layer on the plated tin and exposed steel surface and (c) lamination of the copolyester resin film at a temperature above the melting temperature of tin.
This copolyester resin film laminated steel sheet is suitable for applications wherein excellent corrosion resistance after severe forming is required, such as deeply drawn cans, drawn and redrawn cans, drawn and stretch formed cans, drawn and partially ironed cans and can ends in which a tab for easy opening is attached.
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patent: 4735835 (1988-04-01), Taira et al.
patent: 4816348 (1989-03-01), Kawamura et al.
patent: 4957820 (1990-09-01), Heyes et al.
patent: 4980210 (1990-12-01), Heyes
patent: 5094924 (1992-03-01), Matsui et al.
Frederick A. Lowenheim, Electroplating, McGraw-Hill Book Co., New York, 1978, pp. 307-320.
Fujimoto Terunori
Inui Tsuneo
Ishida Masatoki
Kawamura Hiroaki
Kondo Yoshikazu
Leader William T.
Niebling John
Toyo Kohan Co. Ltd.
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