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公开(公告)号：EP4402294A1
公开(公告)日：2024-07-24
申请号：EP22768480.0
申请日：2022-08-26
申请人： ArcelorMittal
IPC分类号： C21D1/18 , C21D1/28 , C21D1/673 , C21D8/02 , C22C38/02 , C22C38/04 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/32 , C23C2/06 , C23C2/12
CPC分类号： C22C38/02 , C22C38/04 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/22 , C21D1/18 , C21D1/28 , C21D8/0226 , C21D8/0236 , C23C2/06 , C21D1/673 , C21D2211/00820130101 , C23C2/12
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公开(公告)号：EP4396388A1
公开(公告)日：2024-07-10
申请号：EP21766708.8
申请日：2021-08-31
申请人： ArcelorMittal
IPC分类号： C22C38/04 , C22C38/06 , C22C38/02 , C22C38/12 , C22C38/14 , C22C38/00 , C21D9/46 , C21D8/02 , C21D6/00 , C21D1/22 , C21D1/18
CPC分类号： C22C38/04 , C22C38/06 , C22C38/02 , C22C38/12 , C22C38/14 , C22C38/001 , C22C38/002 , C21D9/46 , C21D8/0205 , C21D8/0226 , C21D8/0263 , C21D8/02 , C21D6/005 , C21D1/18 , C21D1/22
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公开(公告)号：EP3940091B1
公开(公告)日：2024-06-26
申请号：EP20770209.3
申请日：2020-02-13
IPC分类号： C21D9/00 , C21D9/46 , C22C38/00 , C22C38/60 , C21D8/02 , C21D8/04 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C23C2/06 , C23C2/12 , C23C2/40 , C23G1/00 , C23G1/08 , C23C2/02 , C23C2/28 , C21D1/28 , C21D1/18
CPC分类号： C22C38/00 , C21D9/00 , C21D9/46 , C21D1/18 , C22C38/60 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C21D8/0278 , C21D8/0273 , C21D8/0236 , C21D8/0226 , C21D8/0426 , C21D8/0436 , C21D8/0473 , C21D8/0478 , C23C2/06 , C23C2/12 , C21D1/28 , C23C2/40 , C21D2211/00820130101 , C23G1/081 , C23G1/085 , C23G1/088 , C23C2/02 , C23C2/28 , C23C2/024 , C23C2/0224
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公开(公告)号：EP4386093A1
公开(公告)日：2024-06-19
申请号：EP22855906.8
申请日：2022-08-10
摘要： This joint component includes: a first steel member; a second steel member; and a joint portion which is formed at butted portions between the first steel member and the second steel member and includes a weld metal and a heat-affected zone, in which the first steel member includes a steel sheet substrate and an Al-Fe-based coating formed on a surface of the steel sheet substrate, and has a tensile strength of more than 1,500 MPa, and when a cross section of the weld metal in a sheet thickness direction orthogonal to an extension direction of the joint portion is defined as a measuring surface, an average Cu content in the weld metal at the measuring surface is 0.03% or more and 3.00% or less by mass%.
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公开(公告)号：EP4386092A2
公开(公告)日：2024-06-19
申请号：EP23214942.7
申请日：2023-12-07
IPC分类号： C21D1/18 , C21D1/673 , C21D8/02 , C21D9/46 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/12 , C23C2/18
CPC分类号： C21D9/46 , C21D8/0205 , C21D8/0221 , C21D8/0263 , C21D8/0273 , C21D8/0278 , C21D1/18 , C21D1/673 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/18 , C23C2/12
摘要： Bei der vorliegenden Erfindung handelt es sich um ein Stahlflachprodukt zur Herstellung eines Blechformteils durch Warmumformen, aufweisend
a. ein Stahlsubstrat, das aus einem Stahl, der 0,1-3 Gew.-% Mn und optional bis zu 0,01 Gew.-% B aufweist, besteht und
b. einen auf mindestens einer Seite des Stahlsubstrats angeordneten Überzug auf Aluminium-Basis,
wobei der Überzug eine Al-Basisschicht aufweist, die aus 1,0-15 Gew.-% Si, optional 2-4 Gew.-% Fe, 0,1-5,0 Gew.-% Alkali- oder Erdalkalimetalle, und optionalen weiteren Bestandteilen, deren Gehalte in Summe auf höchstens 2,0 Gew.-% beschränkt sind, und als Rest Aluminium besteht und wobei die Alkali- oder Erdalkalimetalle in der Al-Basisschicht eine derartige Verteilung aufweisen, dass das Stahlflachprodukt im abgekühlten Zustand nach einer Glühung in einem Ofen mit einer Ofentemperatur von 900°C für eine Glühdauer von 9 Minuten eine Farbveränderung im Vergleich zum abgekühlten Zustand nach einer Referenz-Glühdauer von 4 Minuten erfährt, wobei die Farbveränderung eine Farbdynamik von größer 100 aufweist.-
公开(公告)号：EP4151767B1
公开(公告)日：2024-05-01
申请号：EP21803239.9
申请日：2021-05-13
IPC分类号： B32B15/01 , C22C38/22 , C21D9/46 , C23C28/02 , C23C2/26 , C23C2/12 , C23C2/02 , C22C38/14 , C22C38/12 , C22C38/08 , C22C38/06 , C22C21/02 , C22C38/04 , C22C38/02 , C22C38/00 , C21D1/18 , C21D1/26 , C21D1/673 , C21D7/13 , C21D8/02
CPC分类号： C23C2/26 , C21D9/46 , C22C21/02 , C21D1/18 , C23C2/12 , C21D8/0278 , C21D1/673 , C21D7/13 , C21D8/0226 , C21D8/0263 , C21D1/26 , C23C2/02 , C23C28/02 , C23C28/021 , C23C28/023 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/32 , C22C38/22 , C22C38/28 , C22C38/38 , C22C38/002 , C22C38/005 , C22C38/08 , B32B15/012 , B32B15/013
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公开(公告)号：EP4001447B1
公开(公告)日：2024-05-01
申请号：EP20856777.6
申请日：2020-08-25
IPC分类号： C22C38/00 , C21D1/18 , C21D9/46 , C21D9/573 , C21D1/60 , C21D8/02 , B21B27/06 , B21B27/10 , B21B27/08 , B21B37/28 , B21B37/36 , B21B37/34 , B21B37/32 , B21B37/30 , C21D6/00 , C21D1/63 , C22C38/06 , C22C38/60
CPC分类号： C22C38/00 , C21D1/63 , C21D9/46 , C22C38/06 , C21D9/573 , C21D1/18 , C22C38/60 , C21D1/60 , C21D6/00 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0247 , Y02P10/20
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19.发明授权
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20.发明公开
公开(公告)号：EP4332265A1
公开(公告)日：2024-03-06
申请号：EP22816386.1
申请日：2022-05-26
申请人： POSCO Co., Ltd
发明人： LEE, Junmo , CHOI, Seokhwan , CHOI, Myungsoo
IPC分类号： C22C38/34 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/00 , C21D8/02 , C21D1/18 , C21D9/54 , B22D11/00
摘要： Disclosed are a wire rod and a steel wire for a spring, a spring with improved strength and fatigue limit, and a method for manufacturing the same.
The disclosed wire rod for a spring with improved strength and fatigue limit according to an embodiment includes, in percent by weight (wt%): 0.6 to 0.7% of C, 2.0 to 2.5% of Si, 0.2 to 0.7% of Mn, 0.9 to 1.5% of Cr, 0.015% or less of P, 0.01% or less of S, 0.01% or less of Al, 0.01% or less of N, 0.25% or less of Mo, 0.25% or less of W, 0.05% to 0.2% of V, 0.05% or less of Nb, and the balance of Fe and unavoidable impurities, wherein Mn+Cr≤1.8% and 0.05 at%≤Mo+W≤0.15 at% may be satisfied.
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