发明授权
- 专利标题： Cold rolled steel sheet and galvanized steel sheet having improved homogeneity in workability and process for producing same
- 专利标题（中）： 具有提高加工性均匀性的冷轧钢板和镀锌钢板及其制造方法
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申请号： US737107申请日： 1996-10-18
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公开(公告)号： US5954896A公开(公告)日： 1999-09-21
- 发明人: Kazuo Koyama , Masayoshi Suehiro , Naoki Yoshinaga , Natsuko Hashimoto
- 申请人： Kazuo Koyama , Masayoshi Suehiro , Naoki Yoshinaga , Natsuko Hashimoto
- 申请人地址： JPX Tokyo
- 专利权人： Nippon Steel Corporation
- 当前专利权人： Nippon Steel Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX7-035743 19950223; JPX7-091180 19950417
- 主分类号： C21D8/02
- IPC分类号： C21D8/02 ; C21D8/04 ; C22C38/04 ; C22C38/12 ; C22C38/14 ; C23C2/02 ; C23C2/06
摘要：
According to the present invention, an ultra low carbon steel with Nb, Ti, or Nb-Ti added thereto is used as a material, and (% S as MnS)/(total S content) is regulated to not more than 0.2 with (% C as carbosulfide)/(total C content) being regulating to not more than 0.7, thereby efficiently precipitating carbosulfide in a .gamma. temperature region during hot rolling and thus reducing the amount of C in solid solution to ensure the homogeneity of the material over the whole length of a coil and to markedly improve the workability.
公开/授权文献
- US4642866A Hub removing device and method 公开/授权日：1987-02-17
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