发明名称 METHOD FOR PRODUCING HIGH-CARBON STEEL WIRE ROD EXCELLENT IN DRAWABILITY
摘要 PROBLEM TO BE SOLVED: To provide a method of producing high-carbon steel wire rod excellent in drawability, which improves peelability by MD (Mechanical Descaling), of mill scale as secondary scale with which the surface of the steel wire rod is covered, consequently prevents the scale from remaining descaled after subjected to the MD and biting of the scale (oxide) into a die in a wire drawing process and lessens the surface roughness of matrix after subjected to the MD, thereby suppressing a reduction in a life of the die and a deterioration in the surface property due to a damaged die. SOLUTION: The method for producing the wire rod includes steps of: forming a steel billet having suitably adjusted chemical component composition into a wire rod shape by hot rolling; and coiling the wire rod-shaped steel billet. In the method, the heating temperature in the hot-rolling time of the steel billet is set to 950-1,050°C and the coiling temperature is set to 890-990°C, and production is performed. COPYRIGHT: (C)2011,JPO&INPIT
申请公布号 JP2010222630(A) 申请公布日期 2010.10.07
申请号 JP20090070140 申请日期 2009.03.23
申请人 KOBE STEEL LTD 发明人 ONISHI TAKASHI;TAKEDA MIKAKO;NAKAKUBO SHOHEI;KIRIHARA KAZUHIKO;ENDO MASAYUKI;YOSHIHARA SUNAO
分类号 C21D8/06;B21B3/00;C22C38/00;C22C38/18 主分类号 C21D8/06
代理机构 代理人
主权项
地址