Process for improving the anti-corrosion properties of steel coa

Details Process for improving the anti-corrosion properties of steel coa Process for improving the anti-corrosion properties of steel coa

1975-03-04

1977-03-22

Steiner, Arthur J.

Metal treatment

Process of modifying or maintaining internal physical...

Chemical-heat removing or burning of metal

291966, 148 315, 148134, 204 37R, C23C 1700

Patent

active

040134881

ABSTRACT:
A process is provided for coating a ferrous metal article, e.g. steel or iron, with a corrosion resistant surface layer comprising first coating said article with a layer of nickel and/or cobalt, heating said coated article for a time less than 45 minutes at a temperature in excess of 725.degree. C and then applying to said first metal layer an additional layer of at least one of the metals selected from the group consisting of chromium, tin, lead, zinc, copper and cadmium.

REFERENCES:
patent: 2294562 (1942-09-01), Kingston
patent: 2315740 (1943-04-01), Schoonmaker
patent: 2731403 (1956-01-01), Rubin
patent: 3668951 (1972-06-01), Talmage
patent: 3940254 (1974-10-01), McMullen et al.

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