- 专利标题： HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET WITH EXCELLENT PLATING QUALITY, STEEL SHEET FOR PLATING, AND MANUFACTURING METHODS THEREFOR
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申请号： US18039175申请日： 2021-12-09
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公开(公告)号： US20240003032A1公开(公告)日： 2024-01-04
- 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 20200173907 2020.12.13
- 国际申请： PCT/KR2021/018665 2021.12.09
- 进入国家日期： 2023-05-26
- 主分类号： C25D3/20
- IPC分类号： C25D3/20 ; C22C38/38 ; C22C38/32 ; C22C38/28 ; C22C38/26 ; C22C38/06 ; C22C38/02 ; C22C38/00 ; C21D9/46 ; C21D6/00 ; C21D1/74 ; B32B15/01 ; C23C2/02 ; C23F17/00 ; C25D5/50
摘要：
In a steel sheet for plating, according to one aspect of the present invention, the CBS profile of an Mn element, which is observed in the direction of surface to depth, sequentially comprises local maximum points and local minimum points, difference of converted concentration of Mn can be 10% or higher, and difference of converted concentration of Si can be 10% or higher.
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