基本信息:
- 专利标题： Method for producing hot rolled steel sheet and apparatus therefor
- 专利标题（中）：用于生产带钢的heizgewalztem方法和装置
- 申请号：EP01126517.0 申请日：1997-10-30
- 公开(公告)号：EP1179375A2 公开(公告)日：2002-02-13
- 发明人： Hino, Yoshimichi, Intellectual Property Dept. , Minote, Toru, Intellectual Property Dept. , Masuda, Sadakazu, Intellectual Property Dept. , Yamamoto, Masaaki, Intellectual Property Dept. , Eda, Hisatomo, Intellectual Property Dept. , Terauchi, Takumasa, Intellectual Property Dept.
- 申请人： NKK CORPORATION
- 申请人地址： 1-2, 1-chome Marunouchi, Chiyoda-ku Tokyo 100 JP
- 专利权人： NKK CORPORATION
- 当前专利权人： NKK CORPORATION
- 当前专利权人地址： 1-2, 1-chome Marunouchi, Chiyoda-ku Tokyo 100 JP
- 代理机构： HOFFMANN - EITLE
- 优先权： JP28835796 19961030; JP29001096 19961031
- 主分类号： B21B45/00
- IPC分类号： B21B45/00 ; B21B1/26 ; B21B45/08 ; B21B37/74
摘要：
A method and hot rolling apparatus for producing a hot rolled steel sheet (3) include a roughing rolling mill (12) to roughing roll a heated slab into a sheet bar, at least one solenoid-type induction heater (4) arranged for re-heating the sheet bar over its entire width, and a finish rolling mill (6) arranged to finish roll the re-heated sheet bar into a hot rolled steel sheet having a predetermined thickness. An initial temperature before rolling is set to be low, and re-heating of the sheet bar is carried out around the middle of the hot rolling apparatus. The thermal energy required for rolling is thereby reduced as a whole without damaging the quality of the resulting hot rolled steel sheet. A descaling apparatus (5) is provided prior to the finish rolling mill to remove oxide scales on surfaces of the sheet bar, whereby the resulting hot rolled steel sheet is free of scale flaws and exhibits superior surface properties.
公开/授权文献:
IPC结构图谱:
| B | 作业；运输 |
| --B21 | 基本上无切削的金属机械加工；金属冲压 |
| ----B21B | 金属的轧制 |
| ------B21B45/00 | 专门配置于或安装于轧机内或专为与金属轧机连用的工件表面处理设备 |