| 摘要 |
The present invention provides a process for producing a hot stamp molded article, which comprises a hot rolling step, a winding step, a cold rolling step, a continuous annealing step and a hot stamping step, wherein the continuous annealing step comprises a heating step of heating a cold-rolled steel sheet to a temperature of not lower than Ac1ËšC and lower than Ac3ËšC, a cooling step of cooling the cold-rolled steel sheet from the highest heating temperature to 660ËšC at a cooling rate of 10ËšC/s or less, and a retaining step of retaining the cold-rolled steel sheet at a temperature ranging from 550 to 660ËšC for 1 to 10 minutes. |
