发明名称 ホットスタンプ用合金化溶融亜鉛めっき鋼板とその製造方法
摘要 Provided is a method for producing a plated steel sheet with high Si content for hot stamping, which is capable of suppressing the generation of unplated portions, while maintaining high bonding strength in a welded part in cases where a galvanized steel sheet containing a large amount of Si, namely, 0.7% or more of Si is used for hot stamping applications. In this production method, a hot-rolled pickled steel sheet or cold-rolled steel sheet containing 0.10-0.5% by mass of C, 0.7-2.5% by mass of Si, 1.0-3% by mass of Mn, and 0.01-0.5% by mass of Al is annealed in a reducing atmosphere and then plated, thereby producing a galvanized steel sheet for hot stamping. This method for producing a galvanized steel sheet for hot stamping is characterized in that the annealing is carried out within the range of 500 to 700°C for 30 to 270 seconds.
申请公布号 JP5973953(B2) 申请公布日期 2016.08.23
申请号 JP20130090645 申请日期 2013.04.23
申请人 株式会社神戸製鋼所 发明人 児嶋 岳志;入江 広司;箕輪 剛
分类号 C21D9/46;C22C38/00;C22C38/06;C22C38/58;C23C2/02;C23C2/06;C23C2/28 主分类号 C21D9/46
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