| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a high Si-containing galvanized steel sheet for a hot stamp, which can suppress generation of non-plating while a high joint strength at a welding part is maintained when galvanized steel sheet containing Si as high as 0.7% or more is used for a hot stamp application.SOLUTION: In a manufacturing method of a galvanized steel sheet for a hot stamp where a hot-rolled pickled steel sheet or a cold rolled steel sheet containing C: 0.10-0.5% (mass%, hereafter the same), Si: 0.7-2.5%, Mn: 1.0-3%, Al: 0.01-0.5% is annealed under a reduced atmosphere before being plated, the annealing is performed in the range of 500-700°C for 30-270 seconds. |
