公开(公告)号：US5458699A

公开(公告)日：1995-10-17

申请号：US240369

申请日：1994-05-10

申请人： Takashi Tsukamoto ,  Terutaka Tsumura ,  Masatake Tomita ,  Michitaka Fujita ,  Motoo Asakawa

发明人： Takashi Tsukamoto ,  Terutaka Tsumura ,  Masatake Tomita ,  Michitaka Fujita ,  Motoo Asakawa

IPC分类号： C21D8/06 ,  C22C38/00 ,  C22C38/04 ,  C22C38/02

CPC分类号： C22C38/00 ,  C21D8/06 ,  C21D2211/009

摘要： A steel wire for making a high strength steel wire product which contains 0.6-1.1% C, 0.2-0.6% Si, 0.3-0.8% Mn, and impurities of max 0.010% P, max 0.010% S, max 0.003% O(oxygen), and max 0.002% N, and has a structure in which the maximum pearlite block size is 4.0 .mu.m, the maximum separation distance in pearlite lamellars is 0.1 .mu.m, and the maximum content of free ferrite is 1% by volume.The steel wire can be manufactured in the process as follows;1 heating a steel wire rod having above-mentioned chemical composition to the austenite range above Ac.sub.3 point or A.sub.cm point,2 initiating plastic deformation to not less than 20% total reduction in cross-sectional area in the temperature range 850.degree. C. -750.degree. C.,3 finishing plastic deformation in the range below Ae.sub.1 point and above 650.degree. C., and4 continuously cooling to a range lower than 650.degree. C. and higher than 550.degree. C., and thus transforming into pearlite phase.

摘要翻译： 一种用于制造高强度钢丝产品的钢丝，其含有0.6-1.1％C，0.2-0.6％Si，0.3-0.8％Mn和最大0.010％P，最大0.010％S，最大0.003％O（氧气 ）和最大0.002％N，并且具有最大珠光体块大小为4.0μm的结构，珠光体层的最大分离距离为0.1μm，游离铁素体的最大含量为1体积％。 钢丝绳可按如下方法制造： + E，crc / 1 /加热具有上述化学成分的钢丝杆，奥氏体范围高于Ac3点或Acm点，+ E，crc / 2 /起始塑性变形至不低于20％ 截面积在850℃-750℃，+ E，crc / 3 /整理塑性变形范围在低于Ae1点和650℃以上，+ E，crc / 4 /连续冷却至 范围低于650℃，高于550℃，从而转化成珠光体相。