发明授权
- 专利标题: Finish hot rolling method for structural steels
- 专利标题(中): 结构钢的热轧方法
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申请号: US09743307申请日: 2001-01-08
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公开(公告)号: US06408665B1公开(公告)日: 2002-06-25
- 发明人: Junji Nishino , Koichi Hasegawa , Akira Terashima
- 申请人: Junji Nishino , Koichi Hasegawa , Akira Terashima
- 优先权: JP11-225708 19990809
- 主分类号: B21B1312
- IPC分类号: B21B1312
摘要:
The present invention provides a finish hot rolling method for structural steels capable of realizing enhanced dimensional accuracy and a uniform microstructure, using a 2-stand 3-roll finishing mill, wherein an area reduction rate of the final finishing pass is 10 to 20% and the value of an area reduction rate of the final finishing pass divided by the corresponding area reduction rate of the pass preceding the final finishing pass is 0.7 to 1.3.
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