-
1.发明公开公开(公告)号：US20240360540A1
公开(公告)日：2024-10-31
申请号：US18688707
申请日：2022-09-28
申请人： POSCO CO., LTD
发明人： Tae-Chul Kim , Sung-Joo Kim , Myung-Soo Kim , Bong-Hwan Yoo , Yong-Kyun Cho , Il-Ryoung Sohn
摘要： The present invention provides a Zn—Mg—Al-based plated steel sheet having excellent in corrosion resistance and whiteness, 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, whiteness and bendability, and a method for manufacturing the same.
-
公开(公告)号：US20240360528A1
公开(公告)日：2024-10-31
申请号：US18683982
申请日：2022-07-29
摘要： A metal-sheet quenching apparatus cools a metal sheet while conveying the metal sheet and includes a cooling tank in which a cooling fluid is to be stored and the metal sheet is immersed in the cooling fluid to be cooled; restraining rolls that are installed inside the cooling tank and convey the metal sheet that has been cooled in the cooling tank while restraining the metal sheet in the thickness direction; a water-level adjustor that adjusts the height of a fluid surface of the cooling fluid inside the cooling tank; and a position control device that adjusts the height of the fluid surface of the cooling fluid inside the cooling tank by controlling the operation of the water-level adjustor.
-
公开(公告)号：US20240359252A1
公开(公告)日：2024-10-31
申请号：US18579759
申请日：2022-09-30
IPC分类号： B23K11/11 , B23K11/16 , B23K103/04 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/06 , C23C2/40
CPC分类号： B23K11/11 , B23K11/166 , C21D9/46 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/06 , C23C2/40 , B23K2103/04
摘要： A steel welded member having a high LME resistance of a spot weld, i.e., a steel welded member comprised of a plurality of Zn-based plated steel materials, each comprised of a steel material and a Zn-based plating layer on its surface, joined by at least one spot weld, in which
at least one of the Zn-based plated steel materials has a 780 MPa or more tensile strength, that steel material has a chemical composition containing, by mass %,
C: 0.05 to 0.40%,
Si: 0.2 to 3.0%,
Mn: 0.1 to 5.0%,
sol. Al: 0.4 to 1.50%, etc. and having a balance of Fe and impurities, and,
in a region of 10 to 300 μm from an end of a pressure weld of the spot weld, a difference of a Zn penetration depth of Zn from a Zn-based plating layer penetrating a steel material minus a depth of an internal oxidation layer formed at the steel material is within 0.1 to 10.0 μm in range.-
公开(公告)号：US20240352262A1
公开(公告)日：2024-10-24
申请号：US18566647
申请日：2022-06-02
申请人： Fontaine Holdings NV
发明人： Thomas Pinger
摘要： The present invention relates to a method for generating (producing) blaze resistance and/or fire resistance on steel components and/or for providing (equipping) steel components with blaze resistance and/or fire resistance, especially a method for generating (producing) blaze-resistant and/or fire-resistant steel components.
-
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.
-
公开(公告)号：US20240344184A1
公开(公告)日：2024-10-17
申请号：US18641029
申请日：2024-04-19
申请人： Nucor Corporation
发明人： Weiping Sun
IPC分类号： C22C38/16 , C21D8/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C23C2/02 , C23C2/06 , C23C2/28 , C23C2/40
CPC分类号： C22C38/16 , C21D8/0226 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C23C2/02 , C23C2/024 , C23C2/06 , C23C2/28 , C23C2/40 , C21D2211/001 , C21D2211/002 , C21D2211/005 , C21D2211/008
摘要： A hot rolled, ultra-high strength, complex metallographic structured or multi-phase structured steel that improves formability during stamping or forming process, while possessing one or more of the following properties: excellent castability, rollability and coatability, excellent structural performance, excellent stretch formability, excellent stretch flangeability, excellent dent resistance, excellent durability, excellent impact performance, excellent intrusion and crash resistance without the purposeful addition of boron.
-
7.发明公开公开(公告)号：US20240337003A1
公开(公告)日：2024-10-10
申请号：US18746523
申请日：2024-06-18
申请人： POSCO
发明人： Sung-Il Kim , Hyun-Taek Na
IPC分类号： C22C38/28 , C21D8/02 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/26 , C23C2/06 , C23C2/12 , C23C2/40 , C23G1/00
CPC分类号： C22C38/28 , C21D8/0226 , C21D9/46 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/26 , C23C2/06 , C23C2/12 , C23C2/40 , C23G1/00 , C21D2211/001 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C21D2211/009 , Y10T428/12799
摘要： Thick high-strength steel having a high yield ratio and excellent durability, and a method for manufacturing same are provided.
The thick high-strength steel having a high yield ratio and excellent durability of the present invention comprises, in percentage by weight, C: 0.05 to 0.15%, Si: 0.01 to 1.0%, Mn: 1.0 to 2.3%, Al: 0.01 to 0.1%, Cr: 0.005 to 1.0%, P: 0.001 to 0.05%, S: 0.001 to 0.01%, N: 0.001 to 0.01%, Nb: 0.005 to 0.07%, Ti 0.005 to 0.11%, Fe and unavoidable impurities.-
公开(公告)号：US12110570B2
公开(公告)日：2024-10-08
申请号：US18135962
申请日：2023-04-18
申请人： ArcelorMittal
发明人： Hyun Jo Jun
IPC分类号： C21D9/46 , B32B15/01 , C21D1/20 , C21D1/25 , C21D6/00 , C21D8/02 , C22C38/00 , C22C38/02 , C22C38/06 , C22C38/12 , C22C38/26 , C22C38/38 , C23C2/02 , C23C2/06 , C23C2/28 , C23C2/40
CPC分类号： C21D9/46 , B32B15/013 , C21D1/20 , C21D1/25 , C21D6/005 , C21D6/008 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0247 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/06 , C22C38/12 , C22C38/26 , C22C38/38 , C23C2/02 , C23C2/022 , C23C2/06 , C23C2/28 , C23C2/29 , C23C2/40 , C21D2211/002 , C21D2211/005 , C21D2211/008
摘要： A cold rolled, coated and post batch annealed steel sheet produced by a method is provided. The method includes cold rolling a steel sheet; coating the cold rolled steel sheet with a zinc or zinc alloy coating, the cold rolled, coated steel sheet having an initial hole expansion and an initial yield strength and post batch annealing the cold rolled, coated steel sheet at a tempering temperature in a range from 150 to 650° C., the post batch annealed steel sheet having a final hole expansion and a final yield strength. The steel sheet includes (in wt. %) C—0.1-0.3%, Mn—1-3%, Si—0.5-3.5%, Al—0.05-1.5% and Mo+Cr being between 0-1.0%. The final hole expansion is at least 80% greater than the initial hole expansion and the final yield strength is at least 30% greater than the initial yield strength.
-
公开(公告)号：US20240327965A1
公开(公告)日：2024-10-03
申请号：US18576123
申请日：2022-07-28
IPC分类号： C22C38/58 , C21D6/00 , C21D8/02 , C22C38/00 , C22C38/02 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54 , C23C2/06 , C23C2/12
CPC分类号： C22C38/58 , C21D6/004 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0273 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54 , C23C2/06 , C23C2/12 , C21D2211/001 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C21D2211/009
摘要： This steel sheet has a predetermined chemical composition, a tensile strength is 780 MPa or greater, a total of the area ratio of ferrite and an area ratio of bainite is 10% or greater and 90% or less, a total of an area ratio of martensite and an area ratio of tempered martensite is 10% or greater and 90% or less, and a total of an area ratio of pearlite and an area ratio of residual austenite is 0% or greater and 10% or less, a number proportion of crystal grains of ferrite and bainite having an area of 6 μm2 or less is 40% or greater to a total number of crystal grains of the ferrite and the bainite, and a number proportion of crystal grains of ferrite and bainite having an area of 50 μm2 or greater is 5% or less to the total number of crystal grains of the ferrite and the bainite, and a maximum Mn content in a region up to 0.5 μm from an interface between the ferrite and the martensite or the tempered martensite, in a direction perpendicular to the interface and toward an inside of the ferrite grains, is 0.30 mass % or more lower than an average Mn content of the steel sheet
-
公开(公告)号：US12104254B2
公开(公告)日：2024-10-01
申请号：US18278429
申请日：2022-03-04
发明人： Shinichi Yamaguchi
IPC分类号： C23C2/06 , B32B15/04 , C21D9/46 , C22C18/00 , C22C18/04 , C22C38/00 , C23C2/26 , C23C22/05 , C23C28/00
CPC分类号： C23C2/06 , B32B15/04 , C21D9/46 , C22C18/00 , C22C18/04 , C22C38/00 , C23C2/26 , C23C22/05 , C23C28/00 , C21D2201/03
摘要： Surface-treated steel including a steel sheet; a plated layer including zinc formed on the steel sheet; and a film formed on the plated layer, the film having a thickness of 100 nm or more and 1000 nm or less, and including an amorphous phase A containing Si, C, O, P, Zn, and V, and one or more selected from the group consisting of Ti, Zr, and Al as constituent elements, with a Zn/Si ratio of peak intensity between Zn and Si, is 1.0 or more, and a mass ratio between V and P, V/P is 0.050 to 1.000 when analyzed by EDS; and an amorphous phase B containing Si, O, and Zn, having a Zn/Si ratio of less than 1.0, and Zn content of the amorphous phase A is 10 mass % or less, when analyzed by EDS.
-
-
-
-
-
-
-
-
-
搜索结果
2132 条记录 (耗时 0.032 秒)
