PROCESS FOR PRODUCING WIRE FOR BEAD CORD, BEAD CORD, AND VEHICLE TIRE
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United States of America Patent
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app pub date -
Apr 16, 2007
filing date -
Apr 20, 2006
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Abstract
A method for manufacturing a bead cord wire includes the steps of subjecting a steel wire to a descaling treatment, subjecting the descaling-treated steel wire to a chemical conversion coating treatment through electrolysis so as to form a phosphate coating on a surface of the steel wire, and subjecting the chemical-conversion-coating-treated steel wire to drawing so as to produce a bead cord wire. In producing the bead cord wire, the drawing is conducted in such a way that the phosphate coating remains on the surface of the bead cord wire.
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