-
公开(公告)号：US12054829B2
公开(公告)日：2024-08-06
申请号：US17762533
申请日：2020-09-24
Applicant: POSCO , STEEL & CONVERGENCE TECHNOLOGY RESEARCH ASSOCIATION , POSCO COATED & COLOR STEEL CO., LTD.
Inventor： 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: 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 classification number: 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
Abstract: 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.
-
公开(公告)号：US20220341017A1
公开(公告)日：2022-10-27
申请号：US17762533
申请日：2020-09-24
Applicant: POSCO , STEEL & CONVERGENCE TECHNOLOGY RESEARCH ASSOCIATION , POSCO COATED & COLOR STEEL CO., LTD.
Inventor： 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
Abstract: 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.
-
公开(公告)号：US20240344191A1
公开(公告)日：2024-10-17
申请号：US18735892
申请日：2024-06-06
Applicant: POSCO CO., LTD , STEEL & CONVERGENCE TECHNOLOGY RESEARCH ASSOCIATION , POSCO COATED & COLOR STEEL CO., LTD.
Inventor： 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: 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 classification number: 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
Abstract: 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.
-
公开(公告)号：US12006576B2
公开(公告)日：2024-06-11
申请号：US17762533
申请日：2020-09-24
Applicant: POSCO , STEEL & CONVERGENCE TECHNOLOGY RESEARCH ASSOCIATION , POSCO COATED & COLOR STEEL CO., LTD.
Inventor： 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: 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 classification number: 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
Abstract: 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.
-
公开(公告)号：US20250051929A1
公开(公告)日：2025-02-13
申请号：US18721631
申请日：2022-12-19
Applicant: POSCO CO., LTD
Inventor： Chang-Hoon Choi , Soo-Hyoun Cho , Tae-Chul Kim , Sung-Joo Kim
Abstract: The present invention relates to a solution composition capable of improving pitting corrosion resistance and blackening resistance of a steel sheet, a steel sheet surface-treated using same, and a method for manufacturing the steel sheet.
-
Patent Agency Ranking
公开(公告)号：US12270108B2
公开(公告)日：2025-04-08
申请号：US18010868
申请日：2021-06-18
Applicant: POSCO
Inventor： Il-Ryoung Sohn , Sung-Joo Kim , Tae-Chul Kim , Bong-Hwan Yoo , Myung-Soo Kim , Jong-Sang Kim , Sang-Tae Han , Kwang-Won Kim
Abstract: The present invention relates to a plated steel sheet having excellent corrosion resistance, workability and surface quality, and at the same time, capable of reducing occurrence of liquid metal embrittlement (LME).
-
7.发明公开公开(公告)号：US20240360541A1
公开(公告)日：2024-10-31
申请号：US18688709
申请日：2022-09-27
Applicant: POSCO CO., LTD
Inventor： Tae-Chul Kim , Sung-Joo Kim , Myung-Soo Kim , Bong-Hwan Yoo , Yong-Kyun Cho , Il-Ryoung Sohn
Abstract: The present invention provides a Zn—Mg—Al plated steel sheet having excellent in corrosion resistance and bendability, and a method for manufacturing same. And more specifically, the present invention provides a Zn—Mg—Al-based plated steel sheet having excellent in corrosion resistance, bendability, and plating adhesion, and a method for manufacturing the same.
-
公开(公告)号：US20240263291A1
公开(公告)日：2024-08-08
申请号：US18567663
申请日：2022-06-10
Applicant: POSCO CO., LTD
Inventor： Sung-Joo Kim , Il-Ryoung Sohn , Tae-Chul Kim , Kwang-Won Kim , Sang-Tae Han , Myung-Soo Kim , Yong-Kyun Cho
Abstract: One aspect of the present invention provides a plated steel sheet and a manufacturing method therefor, the plated steel sheet comprising: a base steel sheet; a Zn—Mg—Al-based plated layer provided on at least one surface of the base steel sheet; and an Fe—Al-based inhibition layer provided between the base steel sheet and the Zn—Mg—Al-based plated layer, wherein, on the surface of the Zn—Mg—Al-based plated layer, the total area fraction of an Al single phase and MgZn2 phase is 45-60%, and the area ratio of the MgZn2 phase to the Al single phase is 1.2-3.3.
-
公开(公告)号：US20230032557A1
公开(公告)日：2023-02-02
申请号：US17786263
申请日：2020-12-01
Applicant: POSCO
Inventor： Heung-Yun Kim , Sung-Joo Kim
Abstract: An embodiment of the present disclosure provides a hot dip alloy coated steel material having high corrosion resistance, the hot dip alloy coated steel material including: a base steel sheet; and a hot dip alloy coating layer formed on the base steel sheet, wherein the hot dip alloy coating layer includes, by wt %, Al: from greater than 8% to 25%, Mg: from greater than 4% to 12%, and a balance of Zn and other inevitable impurities, wherein a surface of the hot dip alloy coating layer has a surface X-ray diffraction intensity satisfying Condition 1 below: [Condition 1] 2000 cps≤X-ray diffraction intensity≤20000 cps where the X-ray diffraction intensity refers to M−N, M refers to a greatest peak intensity within a 2θ range of 20.00° to lower than 21°, and N refers to a peak intensity at 2θ=20.00°.
-
公开(公告)号：US20250003029A1
公开(公告)日：2025-01-02
申请号：US18681688
申请日：2022-09-28
Applicant: POSCO CO., LTD
Inventor： Tae-Chul Kim , Sung-Joo Kim , Myung-Soo Kim , Bong-Hwan Yoo , Yong-Kyun Cho , Il-Ryoung Sohn
Abstract: The present invention provides a plated steel sheet having excellent in corrosion resistance and surface appearance and a method for manufacturing the same. And more specifically, the present invention provides a Zn-Mg-Al-based plated steel sheet having excellent in corrosion resistance, surface appearance and image clarity after painting, and a method for manufacturing the same.
-
-
-
-
-
-
-
-
-
Search Results
15
records
(took 0.013 seconds)
