| 发明名称 |
METHOD FOR WARM-ROLLING STEEL MATERIAL AND STEEL MATERIAL OBTAINED USING THE SAME |
| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for warm-rolling a steel material by which the low temperature toughness and strength thereof can easily be enhanced without the addition of specific elements, and also to provide a steel material produced by the same. SOLUTION: Rolling is applied to the steel material as reverse rolling in the temperature range of≥400°C and≤Ac<SB>3</SB>in a state that upper and lower roll axes are crossed to each other at an angle of 5°≤and≤20°in a planar position. COPYRIGHT: (C)2003,JPO
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| 申请公布号 |
JP2003230903(A) |
申请公布日期 |
2003.08.19 |
| 申请号 |
JP20020032506 |
申请日期 |
2002.02.08 |
| 申请人 |
JAPAN SCIENCE & TECHNOLOGY CORP;NATIONAL INSTITUTE FOR MATERIALS SCIENCE;MITSUBISHI HEAVY IND LTD;NIPPON STEEL CORP |
发明人 |
HANAMURA TOSHIHIRO;YAMASHITA AKIO;TORITSUKA SHIRO;NAGAI HISASHI |
| 分类号 |
B21B1/38;B21B3/00;C21D8/02;C22C38/00;C22C38/06;(IPC1-7):B21B1/38 |
主分类号 |
B21B1/38 |
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