Method of producing highly corrosion resistant tin-plated steel

Details Method of producing highly corrosion resistant tin-plated steel Method of producing highly corrosion resistant tin-plated steel

1975-08-04

1978-08-01

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

204 37R, 204 38B, 204 40, 428646, 428647, 428648, C25D 510, C25D 550

Patent

active

041041356

ABSTRACT:
A method of producing a highly corrosion resistant tin-plated steel sheet is disclosed by which a metal or alloy coating having a thickness from 0.005.mu. to 0.5.mu. and selected from the class consisting of Ni, Cu and Ni-Sn alloy is plated upon a steel sheet. The thus plated steel sheet is heated in a non-oxidizing atmosphere to such an extent that said plated coating is penetrated and diffused into the steel sheet whereby a reformed steel sheet surface where said plating coating is disappeared is secured. A tin coating is then plated upon said reformed steel sheet surface. This reformed steel sheet surface is sandwiched between the plating tin coating and the steel sheet and contributes greatly to corrosion resistant property of the tin-plated steel sheet.

REFERENCES:
patent: 2266330 (1941-12-01), Nachtman
patent: 2381778 (1945-08-01), Schoonmaker et al.
patent: 3074154 (1963-01-01), Pearson et al.
patent: 3260580 (1966-07-01), Kamm et al.
patent: 4013488 (1977-03-01), Ramqvist et al.

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