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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：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：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：US20220251695A1
公开(公告)日：2022-08-11
申请号：US17622085
申请日：2019-06-26
发明人： Tae-Chul Kim , Jong-Sung Kim , Sung-Hoon Kang , Gwang-Weon Yu , Il-Ryoung Sohn , Jong-Sang Kim
摘要： A plated steel wire, according to one aspect of the present invention, comprises: a base steel wire; and a zinc alloy plated layer. The zinc alloy plated layer comprises, in percentage by weight: 1.0% to 3.0% of AI; 1.0% to 2.0% of Mg; 0.5% to 5.0% of Fe; and the balance being Zn and unavoidable impurities, and includes a Zn/MgZn2/AI ternary eutectic structure, a Zn single-phase structure, and an Fe—Zn-AI-based crystal structure, wherein the Fe—Zn-AI-based crystal structure is formed adjacent to the base steel wire, and can have an average thickness of ⅕ to ½ with respect to an average thickness of the zinc alloy plated layer.
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公开(公告)号：US11248287B2
公开(公告)日：2022-02-15
申请号：US16773101
申请日：2020-01-27
申请人： POSCO
发明人： Min-Suk Oh , Sang-Heon Kim , Tae-Chul Kim , Jong-Sang Kim , Hyun-Chu Yun , Bong-Hwan Yoo , Il-Ryoung Sohn
IPC分类号： B32B15/01 , B32B15/04 , B32B15/18 , C22C38/04 , C22C38/02 , C22C38/06 , C22C18/04 , C23C30/00 , C23C28/02 , C23C2/06 , C23C2/40 , C23C2/16 , C23C2/28 , C23C2/02 , C22C18/00 , C23C2/26 , C22C38/08
摘要： Zn alloy plated steel material having excellent weldability and processed-part corrosion resistance and a method for production of Zn alloy plated steel material are provided. In the Zn alloy plated steel material comprising base steel material and a Zn alloy plating layer, the Zn alloy plating layer includes, by wt %, Al: 0.1-5.0%, Mg: 0.1-5.0%, as well as a remainder of Zn and inevitable impurities. The Zn alloy plated steel material includes a lower interface layer and an upper interface layer between the base steel material and the Zn alloy plating layer, wherein the lower interface layer is formed on the base steel material and has a dense structure, and the upper interface layer is formed on the lower interface layer and has a network-type or island-type structure.
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公开(公告)号：US10907243B2
公开(公告)日：2021-02-02
申请号：US16064768
申请日：2016-12-16
申请人： POSCO
发明人： Min-Suk Oh , Jong-Sang Kim , Il-Ryoung Sohn , Tae-Chul Kim
IPC分类号： C23C2/06 , C23C2/40 , C23C2/20 , C23C2/04 , C23C2/12 , C23C2/26 , B32B15/01 , C22C18/04 , C23C2/28
摘要： A plated steel material includes a plated layer containing, by wt %: 0.5 to 14% of Al, 0.5 to 5% of Mg, and the balance being Zn and inevitable impurities. The plated steel material satisfies the following Equation: ([Mg]S−[Mg]1/2)/[Mg]1/2≥0.3. [Mg]S means a content (wt %) of Mg in a surface of the plated layer, and [Mg]1/2 means a content (wt %) of Mg at a ½t position (t represents a thickness of the plated layer) from the surface of the plated layer in a thickness direction.
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公开(公告)号：US20240043947A1
公开(公告)日：2024-02-08
申请号：US18266784
申请日：2021-12-07
申请人： POSCO Co., Ltd
发明人： Ki-Cheol Kang , Dae-Young Kang , Tae-Chul Kim , Seul-Gi So , Myung-Soo Kim , Jong-Sang Kim
IPC分类号： C21D8/02 , C22C38/00 , C22C38/34 , C22C38/38 , C22C38/32 , C22C38/28 , C22C38/26 , C22C38/22 , C23C2/06 , C23C2/40 , C21D9/46
CPC分类号： C21D8/0205 , C21D8/0226 , C21D8/0263 , C22C38/001 , C22C38/34 , C22C38/38 , C22C38/32 , C22C38/28 , C22C38/26 , C22C38/22 , C23C2/06 , C23C2/40 , C21D9/46 , C22C38/002
摘要： According to an aspect of the present invention, provided are a high strength zinc-plated steel sheet having excellent uniform spot weldability along the width direction, and a manufacturing method thereof.
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9.发明授权公开(公告)号：US11505858B2
公开(公告)日：2022-11-22
申请号：US16471311
申请日：2017-12-21
申请人： POSCO
发明人： Il-Ryoung Sohn , Tae-Chul Kim , Jong-Sang Kim
摘要： Provided is a Zn—Al—Mg-based alloy-plated steel material that can be used in automobiles and home appliances and the like and, more particularly, to a Zn—Al—Mg-based alloy-plated steel material that can suppress the generation of cracks in a plating layer that are generated during processing.
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公开(公告)号：US10584407B2
公开(公告)日：2020-03-10
申请号：US15539654
申请日：2015-12-24
申请人： POSCO
发明人： Min-Suk Oh , Sang-Heon Kim , Tae-Chul Kim , Jong-Sang Kim , Hyun-Chu Yun , Bong-Hwan Yoo , Il-Ryoung Sohn
IPC分类号： C23C2/02 , C23C2/06 , C23C2/28 , C23C28/02 , C22C38/06 , C22C18/04 , C22C38/02 , C23C30/00 , C22C38/04 , B32B15/01 , B32B15/18 , B32B15/04
摘要： Zn alloy plated steel material having excellent weldability and processed-part corrosion resistance and a method for production of Zn alloy plated steel material are provided. In the Zn alloy plated steel material comprising base steel material and a Zn alloy plating layer, the Zn alloy plating layer includes, by wt %, Al: 0.1-5.0%, Mg: 0.1-5.0%, as well as a remainder of Zn and inevitable impurities. The Zn alloy plated steel material includes a lower interface layer and an upper interface layer between the base steel material and the Zn alloy plating layer, wherein the lower interface layer is formed on the base steel material and has a dense structure, and the upper interface layer is formed on the lower interface layer and has a network-type or island-type structure.
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