Patent ID: 8163110
Filing Date: 2012-04-24
Classification: C22C,C22F,Y10T

Abstract:
1. A method for manufacturing a superfine copper alloy wire having a final wire diameter of 0.05 mm or less, said method comprising: pouring a copper alloy hot metal consisting of 1.0 wt % or more to 3.5 wt % or less of Ag and a balance of a copper parent material having a total sum of 10 ppm or less of impurity concentrations into a casting mold to implement metal casting; cooling an uncoagulated copper alloy hot metal after the pouring at a cooling rate of 400° C./min or more to 500° C./min or less to form a casting; cold-working the casting for reducing a diameter thereof; and recrystallizing a wiredrawn material obtained as a result of the cold working.