Surface treatment of a weather-resistant steel

Details Surface treatment of a weather-resistant steel Surface treatment of a weather-resistant steel

1974-11-07

1976-05-04

Kendall, Ralph S.

Metal treatment

Compositions

Heat treating

148 615Z, 148 616, C23F 710

Patent

active

039545113

ABSTRACT:
Surface treatment of weather-resistant steel by applying a liquid composition comprising 5 to 50% of Fe.sub.3 O.sub.4 + Fe.sub.2 O.sub.3, 0.01 to 5% of phosphoric acid, 0.01 to 10% of at least one selected from the consisting of Pb, Ni, Cu, P, Zn, Cr and their compounds, 3 to 30% of butyral resin, the balance being solvent by spraying or brushing. The surface treatment is effective for preventing the occurence of the initial rust formation of the steel and promoting a stable and dense protective rust against subsequent corrosion of the steel.

REFERENCES:
patent: 2525107 (1950-10-01), Whiting et al.
patent: 3479229 (1969-11-01), Becker
patent: 3615893 (1971-10-01), Matsushima et al.

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