- 专利标题： HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET HAVING EXCELLENT PLATING QUALITY, STEEL SHEET FOR PLATING, AND METHODS FOR MANUFACTURING SAME
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申请号： US18038914申请日： 2021-12-09
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公开(公告)号： US20240018676A1公开(公告)日： 2024-01-18
- 发明人: Jin-Ho Jung , Won-Hwi Lee , Ki-Cheol Kang , Seong-Choon Kwon
- 申请人： POSCO Co., Ltd
- 申请人地址： KR Pohang-si, Gyeongsangbuk-do
- 专利权人： POSCO Co., Ltd
- 当前专利权人： POSCO Co., Ltd
- 当前专利权人地址： KR Pohang-si, Gyeongsangbuk-do
- 优先权： KR 20200173908 2020.12.13
- 国际申请： PCT/KR2021/018661 2021.12.09
- 进入国家日期： 2023-05-25
- 主分类号： C25D3/20
- IPC分类号： C25D3/20 ; C22C38/38 ; C22C38/32 ; C22C38/28 ; C22C38/22 ; C22C38/06 ; C22C38/00 ; C22C38/02 ; C21D9/46 ; C21D1/74 ; C25D5/50 ; C23C2/06 ; C23C28/02
摘要：
The steel sheet for plating according to an aspect of the present invention has a GDS profile of an Mn element, as observed in the depth direction from the surface, sequentially including a maximum point and a minimum point, wherein a difference of converted concentration of Mn may be 80% or more, and a difference of converged concentration of Si may be 50% or more.
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