发明名称 |
Method for manufacturing high strength hot rolled steel sheet |
摘要 |
A method for manufacturing a high strength hot rolled steel sheet includes heating a slab to a temperature in the range of 1150 to 1300° C.; hot rolling the slab with a finishing rolling temperature being in the range of 800 to 1000° C.; cooling the steel sheet at a mean cooling rate of 30° C./s or higher to a cooling termination temperature in the range of 525 to 625° C.; suspending cooling for a time period in the range of 3 to 10 seconds; cooling the steel sheet in such a manner that cooling of the steel sheet is nucleate boiling; and coiling the steel sheet at a temperature in the range of 400 to 550° C. |
申请公布号 |
US8646301(B2) |
申请公布日期 |
2014.02.11 |
申请号 |
US20080674281 |
申请日期 |
2008.08.20 |
申请人 |
YOKOTA TAKESHI;SETO KAZUHIRO;UEOKA SATOSHI;NISHIURA NOBUO;TOMINAGA YOICHI;JFE STEEL CORPORATION |
发明人 |
YOKOTA TAKESHI;SETO KAZUHIRO;UEOKA SATOSHI;NISHIURA NOBUO;TOMINAGA YOICHI |
分类号 |
B21B27/06;B21D31/00 |
主分类号 |
B21B27/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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