Invention Grant
- Patent Title: Hot stamped component, precoated steel sheet used for hot stamping and hot stamping process
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Application No.: US16611880Application Date: 2018-12-27
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Publication No.: US11248276B2Publication Date: 2022-02-15
- Inventor: Hongliang Yi , Zhiyuan Chang , Zhaoyuan Liu , Dapeng Yang , Xiaochuan Xiong
- Applicant: IRONOVATION MATERIALS TECHNOLOGY CO., LTD.
- Applicant Address: CN Jiangsu
- Assignee: IRONOVATION MATERIALS TECHNOLOGY CO., LTD.
- Current Assignee: IRONOVATION MATERIALS TECHNOLOGY CO., LTD.
- Current Assignee Address: CN Jiangsu
- Agency: Morgan, Lewis & Bockius LLP
- Priority: CN201810401259.5 20180428
- International Application: PCT/CN2018/124145 WO 20181227
- International Announcement: WO2019/205698 WO 20191031
- Main IPC: C21D9/46
- IPC: C21D9/46 ; B21D22/02 ; B32B15/01 ; C21D1/34 ; C21D6/00 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/28 ; C22C38/32
Abstract:
The present invention relates to a hot stamped component, a precoated steel sheet used for hot stamping, and a hot stamping process. The hot stamped component of the present invention is provided with a coating of aluminium or an aluminium alloy on at least one surface of the base steel, the coating is produced by interdiffusion between the base steel and a precoating of aluminium or aluminium alloy, and the coating has a thickness of 6 to 26 μm.
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