摘要：【中文】本发明公开了一种宽热成形加热工艺窗口的Cr‑Al‑Si合金体系涂覆钢板及其制备和热冲压成形工艺，涂覆钢带所用液浴含有以下重量百分比的原料：5‑11％Si、0‑4％Fe、0.05‑0.8％Cr，剩余部分为Al和加工中所固有的杂质，涂覆层厚度为10‑33μm，所制备的热冲压零件的涂装、冷弯、抗氢致延迟开裂性能优异，焊接接头损耗低。 【EN】The invention discloses a Cr-Al-Si alloy system coated steel plate with a wide hot forming heating process window and a preparation and hot stamping forming process thereof, wherein a liquid bath used for coating the steel plate contains the following raw materials in percentage by weight: 5-11% of Si, 0-4% of Fe, 0.05-0.8% of Cr, the balance of Al and impurities inherent in processing, and the thickness of the coating layer is 10-33 mu m.