Patent ID: 9579704
Date: 2017-02-28
CPC Classifications: B21C,C23G,C25D,D07B,Y10T

Claim:
1. A method for manufacturing a brass-plated steel wire, comprising: brass-plating a steel wire rod; removing zinc oxide from the surface of the brass-plated steel wire rod by a pickling treatment, wherein the amount of zinc oxide remaining after the removing of the zinc oxide is smaller than 50 mg/m final drawing the obtained brass-plated steel wire rod after the removing of the zinc oxide; wherein a cleaning liquid used for the pickling treatment is a phosphoric acid solution; and wherein the concentration of the phosphoric acid solution and acid treatment time satisfy the relationship represented by the following expression: 72 (g/L·s)≧phosphate concentration (g/L)×treatment time (s)>5.0 (g/L·s).