| 摘要 |
PURPOSE: A high-carbon steel wire manufacturing method is provided to facilitate a wire-drawing process and to be utilized even when mandatory control in respect to the usage of lead is strengthened. CONSTITUTION: A high-carbon steel wire manufacturing method includes the following steps of: preparing a wire containing 0.8-1.02 wt% of C; manufacturing a primary drawn wire by primarily drawing the wire; heating and cooling the primary drawn wire at the temperature of two phase regions; secondarily drawing the heat treated primary drawn wire and lead-patterning heat treating the secondary drawn wire; and tertiary-drawing the heat treated secondary drawn wire. [Reference numerals] (AA) Comparative material; (BB,JJ) First drawing; (CC,LL) Second drawing; (DD,MM) Third drawing; (EE,GG,NN,PP) Temperature; (FF,HH,OO,QQ) Time; (II) Invented material; (KK) General heating treatment |
