发明名称 |
METHOD FOR MANUFACTURING HOT STAMPED BODY AND HOT STAMPED BODY |
摘要 |
The present invention provides a method for manufacturing a hot stamped body, the method including: a hot-rolling step; a coiling step; a cold-rolling step; a continuous annealing step; and a hot stamping step, in which the continuous annealing step includes a heating step of heating the cold-rolled steel sheet to a temperature range of equal to or higher than Ac1° C. and lower than Ac3° C.; a cooling step of cooling the heated cold-rolled steel sheet from the highest heating temperature to 660° C. at a cooling rate of equal to or less than 10° C./s; and a holding step of holding the cooled cold-rolled steel sheet in a temperature range of 550° C. to 660° C. for one minute to 10 minutes.
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申请公布号 |
US2013292009(A1) |
申请公布日期 |
2013.11.07 |
申请号 |
US201113879061 |
申请日期 |
2011.10.21 |
申请人 |
HAYASHI KUNIO;ASO TOSHIMITSU;TOMOKIYO TOSHIMASA;TANINO HITOSHI;WADA RYOZO |
发明人 |
HAYASHI KUNIO;ASO TOSHIMITSU;TOMOKIYO TOSHIMASA;TANINO HITOSHI;WADA RYOZO |
分类号 |
C21D8/02;C23C2/02;C25D5/36 |
主分类号 |
C21D8/02 |
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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