发明公开
- 专利标题： HOT STAMP MOULDED BODY
-
申请号： EP18755033.0申请日： 2018-02-20
-
公开(公告)号： EP3584349A1公开(公告)日： 2019-12-25
- 发明人: TODA, Yuri , ABUKAWA, Genki , MAEDA, Daisuke , HIKIDA, Kazuo , FUJINAKA, Shingo
- 申请人： Nippon Steel Corporation
- 申请人地址： 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071 JP
- 专利权人： Nippon Steel Corporation
- 当前专利权人： Nippon Steel Corporation
- 当前专利权人地址： 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071 JP
- 代理机构： Vossius & Partner Patentanwälte Rechtsanwälte mbB
- 优先权： JP2017029300 20170220
- 国际公布： WO2018151330 20180823
- 主分类号： C22C38/00
- IPC分类号： C22C38/00 ; C22C38/60 ; B21D22/20 ; B21D22/26 ; C21D1/18 ; C21D9/00 ; C21D9/46
摘要：
There is provided a hot stamped body including a middle part in sheet thickness and a surface layer arranged at both sides or one side of the middle part in sheet thickness, further including an intermediate layer formed between the middle part in sheet thickness and each surface layer so as to adjoin them, wherein the middle part in sheet thickness has a predetermined composition, the middle part in sheet thickness has a hardness of 500Hv or more and 800Hv or less, the surface layer has a hardness change ΔH 1 in the sheet thickness direction of 10Hv or more and less than 200Hv, and the intermediate layer has a hardness change ΔH 2 in the sheet thickness direction of 50Hv or more and less than 200Hv.
信息查询
