发明授权
- 专利标题: Method of producing a hot rolled steel sheet
- 专利标题(中): 热轧钢板的制造方法
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申请号: US14000143申请日: 2012-03-05
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公开(公告)号: US09267196B2公开(公告)日: 2016-02-23
- 发明人: Riki Okamoto , Nobuhiro Fujita , Manabu Takahashi , Kunio Hayashi , Tetsuo Kishimoto , Kazuaki Nakano , Takeshi Yamamoto
- 申请人: Riki Okamoto , Nobuhiro Fujita , Manabu Takahashi , Kunio Hayashi , Tetsuo Kishimoto , Kazuaki Nakano , Takeshi Yamamoto
- 申请人地址: JP Tokyo
- 专利权人: NIPPON STEEL & SUMITOMO METAL CORPORATION
- 当前专利权人: NIPPON STEEL & SUMITOMO METAL CORPORATION
- 当前专利权人地址: JP Tokyo
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JP2011-047720 20110304; JP2011-048231 20110304
- 国际申请: PCT/JP2012/055586 WO 20120305
- 国际公布: WO2012/121219 WO 20120913
- 主分类号: C21D8/04
- IPC分类号: C21D8/04 ; C22C38/04 ; C22C38/02 ; C22C38/38 ; C22C38/00 ; C22C38/06 ; B21B1/26 ; C22C38/08 ; C22C38/10 ; C22C38/12 ; C22C38/14 ; C22C38/16 ; C22C38/34 ; C21D9/46 ; C21D8/02 ; C22C38/18 ; C21D6/00
摘要:
In a hot-rolled sheet, an average value of pole densities of an orientation group {100} to {223} , which is represented by an arithmetic mean of pole densities of orientations {100} , {116} , {114} , {112} , and {223} in a thickness center portion of a thickness range of ⅝ to ⅜ from a surface of the steel sheet, is 1.0 to 6.5 and a pole density of a crystal orientation {332} is 1.0 to 5.0; and a Lankford value rC in a direction perpendicular to a rolling direction is 0.70 to 1.10 and a Lankford value r30 in a direction that forms 30° with respect to the rolling direction is 0.70 to 1.10.
公开/授权文献
- US20130323112A1 HOT-ROLLED STEEL SHEET AND METHOD OF PRODUCING THE SAME 公开/授权日:2013-12-05
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