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公开(公告)号：US12054829B2
公开(公告)日：2024-08-06
申请号：US17762533
申请日：2020-09-24
申请人： POSCO , STEEL & CONVERGENCE TECHNOLOGY RESEARCH ASSOCIATION , POSCO COATED & COLOR STEEL CO., LTD.
发明人： Sung-Joo Kim , Kyung-Kwan Park , Moon-Hi Hong , Heung-Yun Kim , Tae-Yeul Park , Myung-Soo Kim , Il-Ryoung Sohn , Tae-Chul Kim , Dae-Young Kang
IPC分类号： C23C2/06 , B32B15/01 , B32B15/04 , B32B15/18 , C21D7/06 , C22C18/00 , C22C18/04 , C23C2/00 , C23C2/02 , C23C2/28 , C23C2/40 , C23C28/00 , C23C28/02 , C23C30/00
CPC分类号： C23C2/06 , B32B15/01 , B32B15/013 , B32B15/04 , B32B15/043 , B32B15/18 , C21D7/06 , C22C18/00 , C22C18/04 , C23C2/0035 , C23C2/02 , C23C2/285 , C23C2/29 , C23C2/40 , C23C28/02 , C23C28/021 , C23C28/023 , C23C28/025 , C23C28/322 , C23C28/3225 , C23C30/00 , C23C30/005 , Y10T428/12951 , Y10T428/12958 , Y10T428/12972 , Y10T428/12979 , Y10T428/12993 , Y10T428/24942 , Y10T428/24983 , Y10T428/263 , Y10T428/265
摘要： Provided are a plated steel sheet and a method for manufacturing same, the plated steel sheet comprising: a base steel sheet; a Zn—Mg—Al plating layer provided on at least one surface of the base steel sheet; and an Fe—Al inhibition layer provided between the base steel sheet and the Zn—Mg—Al plating layer. The plating layer comprises, by weight %, 4 to 10% of Mg and 5.1-25% of Al and the remainder being Zn and unavoidable impurities with respect to components not including iron (Fe) diffused from the base steel sheet. The plating layer comprises a 24-50% MgZn2 phase in phase fraction. In the MgZn2 phase, an Al single phase is present in the ratio of 1-30% relative to the cross-sectional area of the total MgZn2 phase.
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公开(公告)号：US20220341017A1
公开(公告)日：2022-10-27
申请号：US17762533
申请日：2020-09-24
申请人： POSCO , STEEL & CONVERGENCE TECHNOLOGY RESEARCH ASSOCIATION , POSCO COATED & COLOR STEEL CO., LTD.
发明人： Sung-Joo Kim , Kyung-Kwan Park , Moon-Hi Hong , Heung-Yun Kim , Tae-Yeul Park , Myung-Soo Kim , Il-Ryoung Sohn , Tae-Chul Kim , Dae-Young Kang
摘要： Provided are a plated steel sheet and a method for manufacturing same, the plated steel sheet comprising: a base steel sheet; a Zn—Mg—Al plating layer provided on at least one surface of the base steel sheet; and an Fe—Al inhibition layer provided between the base steel sheet and the Zn—Mg—Al plating layer. The plating layer comprises, by weight %, 4 to 10% of Mg and 5.1-25% of Al and the remainder being Zn and unavoidable impurities with respect to components not including iron (Fe) diffused from the base steel sheet. The plating layer comprises a 24-50% MgZn2 phase in phase fraction. In the MgZn2 phase, an Al single phase is present in the ratio of 1-30% relative to the cross-sectional area of the total MgZn2 phase.
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公开(公告)号：US20240344191A1
公开(公告)日：2024-10-17
申请号：US18735892
申请日：2024-06-06
申请人： POSCO CO., LTD , STEEL & CONVERGENCE TECHNOLOGY RESEARCH ASSOCIATION , POSCO COATED & COLOR STEEL CO., LTD.
发明人： Sung-Joo Kim , Kyung-Kwan Park , Moon-Hi Hong , Heung-Yun Kim , Tae-Yeul Park , Myung-Soo Kim , Il-Ryoung Sohn , Tae-Chul Kim , Dae-Young Kang
IPC分类号： C23C2/06 , B32B15/01 , B32B15/04 , B32B15/18 , C21D7/06 , C22C18/00 , C22C18/04 , C23C2/00 , C23C2/02 , C23C2/28 , C23C2/40 , C23C28/00 , C23C28/02 , C23C30/00
CPC分类号： C23C2/06 , B32B15/01 , B32B15/013 , B32B15/04 , B32B15/043 , B32B15/18 , C21D7/06 , C22C18/00 , C22C18/04 , C23C2/0035 , C23C2/02 , C23C2/285 , C23C2/29 , C23C2/40 , C23C28/02 , C23C28/021 , C23C28/023 , C23C28/025 , C23C28/322 , C23C28/3225 , C23C30/00 , C23C30/005 , Y10T428/12799 , Y10T428/12951 , Y10T428/12958 , Y10T428/12972 , Y10T428/12979 , Y10T428/12993 , Y10T428/24942 , Y10T428/2495 , Y10T428/24959 , Y10T428/24967 , Y10T428/24975 , Y10T428/24983 , Y10T428/26 , Y10T428/263 , Y10T428/264 , Y10T428/265
摘要： Provided are a plated steel sheet and a method for manufacturing same, the plated steel sheet comprising: a base steel sheet; a Zn—Mg—Al plating layer provided on at least one surface of the base steel sheet; and an Fe—Al inhibition layer provided between the base steel sheet and the Zn—Mg—Al plating layer. The plating layer comprises, by weight %, 4 to 10% of Mg and 5.1-25% of Al and the remainder being Zn and unavoidable impurities with respect to components not including iron (Fe) diffused from the base steel sheet. The plating layer comprises a 24-50% MgZn2 phase in phase fraction. In the MgZn2 phase, an Al single phase is present in the ratio of 1-30% relative to the cross-sectional area of the total MgZn2 phase.
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公开(公告)号：US12006576B2
公开(公告)日：2024-06-11
申请号：US17762533
申请日：2020-09-24
申请人： POSCO , STEEL & CONVERGENCE TECHNOLOGY RESEARCH ASSOCIATION , POSCO COATED & COLOR STEEL CO., LTD.
发明人： Sung-Joo Kim , Kyung-Kwan Park , Moon-Hi Hong , Heung-Yun Kim , Tae-Yeul Park , Myung-Soo Kim , Il-Ryoung Sohn , Tae-Chul Kim , Dae-Young Kang
IPC分类号： C23C2/06 , B32B15/01 , B32B15/04 , B32B15/18 , C21D7/06 , C22C18/00 , C22C18/04 , C23C2/00 , C23C2/02 , C23C2/28 , C23C2/40 , C23C28/00 , C23C28/02 , C23C30/00
CPC分类号： C23C2/06 , B32B15/01 , B32B15/013 , B32B15/04 , B32B15/043 , B32B15/18 , C21D7/06 , C22C18/00 , C22C18/04 , C23C2/0035 , C23C2/02 , C23C2/285 , C23C2/29 , C23C2/40 , C23C28/02 , C23C28/021 , C23C28/023 , C23C28/025 , C23C28/322 , C23C28/3225 , C23C30/00 , C23C30/005 , Y10T428/12951 , Y10T428/12958 , Y10T428/12972 , Y10T428/12979 , Y10T428/12993 , Y10T428/24942 , Y10T428/24983 , Y10T428/263 , Y10T428/265
摘要： Provided are a plated steel sheet and a method for manufacturing same, the plated steel sheet comprising: a base steel sheet; a Zn—Mg—Al plating layer provided on at least one surface of the base steel sheet; and an Fe—Al inhibition layer provided between the base steel sheet and the Zn—Mg—Al plating layer. The plating layer comprises, by weight %, 4 to 10% of Mg and 5.1-25% of Al and the remainder being Zn and unavoidable impurities with respect to components not including iron (Fe) diffused from the base steel sheet. The plating layer comprises a 24-50% MgZn2 phase in phase fraction. In the MgZn2 phase, an Al single phase is present in the ratio of 1-30% relative to the cross-sectional area of the total MgZn2 phase.
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公开(公告)号：US11873561B2
公开(公告)日：2024-01-16
申请号：US16468494
申请日：2017-12-13
申请人： POSCO
发明人： Sun-Ho Jeon , Moon-Hi Hong , Jun-Seok Park , Doo-Chan Chang
CPC分类号： C23C2/40 , B21B1/227 , B21B27/005 , B21B27/021 , B32B15/01 , C23C2/06 , C23C2/26 , B21B2001/228 , Y10T428/12993
摘要： Provided is a hot-dip galvanized steel sheet used for an automobile outer panel and so forth and, more specifically, to a method for producing a hot-dip galvanized steel sheet having excellent press formability and clarity after painting, and to a hot-dip galvanized steel sheet produced by the method.
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