发明授权
- 专利标题: Method for producing steel plate having excellent resistance to hydrogen induced cracking
- 专利标题(中): 具有优异的抗氢诱发开裂性的钢板的制造方法
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申请号: US134579申请日: 1980-03-27
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公开(公告)号: US4325748A公开(公告)日: 1982-04-20
- 发明人: Hajime Nashiwa , Toshihiko Kawai , Muneyoshi Takeyama , Youzi Yamaguchi , Tsuneaki Kobayashi , Tsutomu Nagahata
- 申请人: Hajime Nashiwa , Toshihiko Kawai , Muneyoshi Takeyama , Youzi Yamaguchi , Tsuneaki Kobayashi , Tsutomu Nagahata
- 申请人地址: JPX Osaka
- 专利权人: Sumitomo Metal Industries, Ltd.
- 当前专利权人: Sumitomo Metal Industries, Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX54-37593 19790328
- 主分类号: B21B3/00
- IPC分类号: B21B3/00 ; C21D8/02 ; C22C38/00 ; C22C38/04 ; C21D8/00
摘要:
Steel plate having an excellent resistance to hydrogen induced cracking is obtained from a continuously cast slab having the following composition, C 0.01-0.30% by weight, Si 0.05-0.60% by weight, Mn 0.40-2.50% by weight, Sol Al 0.005-1.00% by weight, S 0.003% and lower by weight, the weight ratio of Ca/S is 2-10, the remainder being substantially Fe, through the steps of hot primary reduction rolling the cast slab, heating it at the temperature of 1200.degree. C. or higher for 10 hours or longer, and ordinary rolling it.
公开/授权文献
- US6069648A Information communication terminal device 公开/授权日:2000-05-30