发明名称 METHOD OF MANUFACTURING STEEL WIRE
摘要 PROBLEM TO BE SOLVED: To provide a method of manufacturing a steel wire by which lubricating performance is demonstrated sufficiently in the case of drawing a wire, annealing atmosphere is controlled easily, and the press-fixing and load shifting of a steel wire coil are prevented from generating. SOLUTION: The method includes a process where the steel wire is obtained by performing wire drawing by using a lubricant the mass reducing rate of which is≥75% at 400°C and≤97% at 600°C when heating the lubricant at the temperature rising rate of 10°C/min in the atmosphere, and a process where a steel wire coil obtained by winding the steel wire is charged into a continuous annealing furnace in the state of vertical placing and preheating in an oxidizing atmosphere in the temperature range of 400-600°C and successive annealing in the temperature range of 600-800°C. COPYRIGHT: (C)2011,JPO&INPIT
申请公布号 JP2010269360(A) 申请公布日期 2010.12.02
申请号 JP20090125130 申请日期 2009.05.25
申请人 SUMITOMO METAL IND LTD 发明人 NAGATA YUICHI
分类号 B21C9/00 主分类号 B21C9/00
代理机构 代理人
主权项
地址