Brass-plated steel wire

Details Brass-plated steel wire Brass-plated steel wire

1992-01-14

1993-07-20

Silverberg, Sam

Stock material or miscellaneous articles

Composite

Of metal

152451, B32B 900

Patent

active

052292150

ABSTRACT:
The present invention relates to a brass-plated high carbon steel wire having applied thereto an aqueous zinc phosphate solution having a pH of from about 2 to about 3 and containing (1) a total of from about 28 to 32 grams per liter of phosphoric acid, (2) from about 8 to 11 grams per liter of free phosphoric acid, (3) from about 8 to 12 grams per liter of Zn.sup.+2 which may be derived from the group consisting of zinc oxide, zinc phosphate or mixtures thereof, and (4) wherein the mole ratio of total phosphoric acid to free phosphoric acid ranges from 2.5:1 to 04.0:1. In accordance with the present invention, the zinc phosphate coating on the brass-plated steel cord inhibits corrosion and adhesion of the wire to rubber after vulcanization is improved.

REFERENCES:
patent: 2272216 (1942-02-01), Lodeesen
patent: 2774701 (1956-12-01), Koryta
patent: 3520737 (1970-07-01), Gerassimoff
patent: 3758349 (1973-09-01), Engessar
patent: 3957543 (1976-05-01), Shinomiya et al.
patent: 3996074 (1976-12-01), Rakestraw et al.
patent: 4883722 (1989-11-01), Coppens et al.

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