METHOD FOR MANUFACTURING SUPERALLOY STEEL WIRE WITH HIGH STRENGTH AND CORROSION RESISTANCE

摘要

The present invention relates to a method for manufacturing a superalloy steel wire with high strength and corrosion resistance and, more specifically, to method for manufacturing a superalloy steel wire with high strength and corrosion resistance, comprising: a pre-treatment step (S10) for pre-treating a wire rod composed of 0.02-0.06 wt% of C, 18.0-20.0 wt% of Cr, 11.0-14.0 wt% of Co, 5.5-7.0 wt% of Mo, 2.9-3.25 wt% of Ti, 1.8-2.3 wt% of Al, 0.9-1.2 wt% of W, 0.004-0.010 wt% of B, a remaining amount of Ni, Fe, and impurities; a first wire drawing step (S20) for drawing the pre-treated wire rod at a reduction rate of 35-50%; a first thermal treatment step (S30) for thermally treating the drawn wire rod at temperatures in the range of 1050C and 1150C; a second wire drawing step (S40) for drawing the thermally treated wire rod at a reduction rate of 35-50%; a second thermal treatment step (S50) for thermally treating the drawn wire rod at temperatures in the range of 1050C and 1150C; a third wire drawing step (S60) for drawing the thermally treated wire rod at a reduction rate of 35-50%; a third thermal treatment step (S70) for thermally treating the drawn wire rod at temperatures in the range of 1050C and 1150C; and a fourth wire drawing step (S80) for drawing the thermally treated wire rod at a final reduction rate of 8-12% to complete a superalloy steel wire.;COPYRIGHT KIPO 2015