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公开(公告)号：US20240352565A1
公开(公告)日：2024-10-24
申请号：US18579354
申请日：2021-08-27
IPC分类号： C22C38/60 , B21D28/26 , C21D6/00 , C21D8/02 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C22C38/44 , C22C38/50 , C22C38/54 , C22C38/58
CPC分类号： C22C38/60 , B21D28/26 , C21D6/002 , C21D6/004 , C21D6/005 , C21D6/008 , C21D8/0205 , C21D8/021 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D8/0278 , C21D9/46 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C22C38/44 , C22C38/50 , C22C38/54 , C22C38/58
摘要： This outer plate component for an automobile includes a steel sheet, and a rolling direction of the steel sheet extends along a vehicle body left-right direction in plan view.
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2.发明公开公开(公告)号：US20240352551A1
公开(公告)日：2024-10-24
申请号：US18684593
申请日：2022-08-25
申请人： POSCO CO., LTD
发明人： Young-Roc IM , Sang-Ho UHM , Young-Ha KIM
IPC分类号： C21D9/46 , C21D1/18 , C21D1/84 , C21D6/00 , C21D8/02 , C22C38/00 , C22C38/02 , C22C38/06 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38
CPC分类号： C21D9/46 , C21D1/18 , C21D1/84 , C21D6/004 , C21D6/005 , C21D6/008 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D8/0278 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/06 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C21D2211/001 , C21D2211/002 , C21D2211/005 , C21D2211/008
摘要： Provided is a cold-rolled steel sheet including: by weight %, C: 0.10 to 0.16%, Si: 0.3 to 0.8%, Al: 0.01 to 0.5%, Mn: 2.0 to 3.0%, Cr: 0.001 to 0.5%, Mo: 0.001 to 0.5%, B: 0.0001 to 0.001%, Nb: 0.001 to 0.05%, Ti: 0.001 to 0.05%, P: 0.04% or less (excluding 0%), S: 0.01% or less (excluding 0%), N: 0.01% or less (excluding 0%), a remainder of Fe, and other unavoidable impurities, as a microstructure, by area %, ferrite: 10% or less (excluding 0%), retained austenite: more than 1% to 5% or less, martensite: 25% or more but less than 50%, and bainite: 35% or more but less than 70%. An average size of martensite-austenite (MA) in the bainite is 0.35 to 0.55 μm.
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公开(公告)号：US12123070B2
公开(公告)日：2024-10-22
申请号：US17299308
申请日：2019-11-27
IPC分类号： C21D9/46 , C21D6/00 , C21D8/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/50 , C22C38/52 , C22C38/54 , C22C38/60
CPC分类号： C21D9/46 , C21D6/004 , C21D6/005 , C21D6/008 , C21D8/0205 , C21D8/0226 , C21D8/0263 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/50 , C22C38/52 , C22C38/54 , C22C38/60 , C21D2211/005
摘要： A ferritic stainless steel sheet has a predetermined chemical composition and thickness, and has an area ratio of crystal grains of 45 μm or more in grain size of 20% or less.
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公开(公告)号：US12123065B2
公开(公告)日：2024-10-22
申请号：US16065785
申请日：2016-12-23
申请人： POSCO
发明人： Oh Yeoul Kwon , Se Min Park , Jong-Tae Park , Jae Kyoum Kim , Seung Gon Lee , Won Gul Lee
IPC分类号： B23K26/364 , B23K26/40 , C21D8/12 , C21D10/00 , C23G1/02 , H01F1/18 , B23K103/04 , C21D9/46 , C22C38/02
CPC分类号： C21D8/1283 , B23K26/364 , B23K26/40 , C21D8/12 , C21D10/00 , C23G1/02 , H01F1/18 , B23K2103/04 , C21D8/1222 , C21D8/1233 , C21D8/1255 , C21D8/1294 , C21D9/46 , C21D2201/05 , C22C38/02
摘要： A grain-oriented electrical steel sheet according to an embodiment of the present disclosure includes: a forsterite layer formed on the surface of an electrical steel sheet; a groove which is formed on the forsterite layer in a direction perpendicular to a rolling direction; and a forsterite calcination layer which is formed in the direction of both ends of the electrical steel sheet on the basis of an upper end of the groove and has a width of 1.1 to 1.3 times the width of the groove.
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公开(公告)号：US20240344165A1
公开(公告)日：2024-10-17
申请号：US18681807
申请日：2021-08-27
发明人： Yasuhiro ITO , Mai NAGANO , Hiroyuki KAWATA , Satoshi HIRONAKA
CPC分类号： C21D9/46 , C21D8/0226 , C21D8/0236 , C21D8/0273 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/06 , C23C2/40
摘要： Adopted are a steel sheet contains, as a chemical composition, by mass %, C: 0.040% to 0.105%, Mn: 1.00% to 2.30%, Si: 0.005% to 1.500%, Al: 0.005% to 0.700%, P: 0.100% or less, S: 0.0200% or less, N: 0.0150% or less, O: 0.0100% or less, and a remainder: Fe and impurities, in which ΔC that is calculated from C20, which is a C content at a 20 μm depth position from a surface, C60, which is a C content at a 60 μm depth position from the surface, and the following expression (1) is in a range of 0.20 to 0.90 mass %/mm, and a press-formed article that is obtained by press-forming the steel sheet.
Δ
C
=
(
C
60
-
C
2
0
)
/
(
0.04
)
(
1
)-
公开(公告)号：US20240337000A1
公开(公告)日：2024-10-10
申请号：US18580976
申请日：2022-07-14
发明人： Bernd Linke , Michael Belde
CPC分类号： C22C38/04 , C21D6/002 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0273 , C21D9/46 , C22C38/001 , C22C38/02 , C22C38/18 , C21D2211/001 , C21D2211/002 , C21D2211/003 , C21D2211/005 , C21D2211/008 , C21D2211/009
摘要： A process for producing a cold-rolled flat steel product having a bainitic base microstructure and a correspondingly cold-rolled flat steel product having a bainitic base microstructure.
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公开(公告)号：US20240336989A1
公开(公告)日：2024-10-10
申请号：US18580943
申请日：2022-06-23
申请人： POSCO CO., LTD
发明人： Sangseok Kim , Minam Park , Jaepil Lee , Ilchan Jung
IPC分类号： C21D9/46 , C21D6/00 , C21D8/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/42 , C22C38/44 , C22C38/58
CPC分类号： C21D9/46 , C21D6/004 , C21D6/005 , C21D6/008 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D8/0278 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/42 , C22C38/44 , C22C38/58 , C21D2211/001
摘要： Disclosed is an austenitic stainless steel including, in percent by weight (wt %), 0.005 to 0.03% of C, 0.1 to 1% of Si, 0.1 to 2% of Mn, 0.01 to 0.4 of Cu, 0.01 to 0.2 of Mo, 6 to 9% of Ni, 16 to 19% of Cr, 0.01 to 0.2% of N, and the balance of Fe and inevitable impurities, wherein an austenitic stability parameter (ASP) value calculated by 551−462 (C+N)−9.2Si−8.1Mn−13.7Cr−29 (Ni+Cu)−18.5Mo is from 30 to 60, a [100*N]/[Ni+Cu] value is 1.4 or more, an average grain size is less than 5 μm, and a fraction (%) of grains with a grain size of 5 μm or more is less than 10%.
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8.发明公开公开(公告)号：US20240327964A1
公开(公告)日：2024-10-03
申请号：US18697571
申请日：2022-05-10
发明人： Yong WANG , Chu WANG , Jiangtao DUAN , Diandong SUN , Jingong CONG , Liming LI , Jie CHEN , Fangfang AI , Shaoguang SUN
IPC分类号： C22C38/50 , C21D1/28 , C21D8/02 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/44 , C22C38/48
CPC分类号： C22C38/50 , C21D1/28 , C21D8/0205 , C21D8/0226 , C21D8/0273 , C21D9/46 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/44 , C22C38/48 , C21D2211/002 , C21D2211/005 , C21D2211/009
摘要： The present invention provides a steel plate for an advanced nuclear power unit evaporator and a manufacturing method for the steel plate. The steel plate includes the following components in percentage by mass: 0.10%-0.14% of C, 0.10%-0.25% of Si, 0.25%-0.50% of Mn, P≤0.006%, S≤0.002%, 1.80%-2.10% of Cr, 1.00%-1.35% of Mo, 0.80%-1.20% of Ni, 0%-0.04% of Nb, 0.05%-0.10% of V, 0.03%-0.06% of Ti, 0%-0.02% of Alt, 0.001%-0.004% of Ca, 0.01%-0.03% of N, Sn≤0.001%, H≤0.0001%, and O≤0.0020%, with the balance being Fe and inevitable impurities, wherein a high temperature temper embrittlement resistance coefficient J=(Si+Mn)×(P+Sn)×104≤50. The provided process procedures can ensure the comprehensive performance requirements of the steel plate for an advanced nuclear power unit evaporator.
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公开(公告)号：US12104218B2
公开(公告)日：2024-10-01
申请号：US18027201
申请日：2021-09-17
发明人： Jennifer Schulz , Maria Köyer , Manuela Ruthenberg
IPC分类号： C21D9/46 , C21D1/18 , C21D6/00 , C21D8/02 , C22C21/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/22 , C22C38/28 , C22C38/32 , C23C2/12 , C23C2/26 , C23C2/28 , C23C2/40
CPC分类号： C21D9/46 , C21D1/18 , C21D6/002 , C21D6/005 , C21D6/008 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D8/0278 , C22C21/02 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/22 , C22C38/28 , C22C38/32 , C23C2/12 , C23C2/26 , C23C2/28 , C23C2/40
摘要： A sheet metal component made of a hot-formed flat steel product including a steel substrate consisting of, in mass. %, C: 0.1-0.4%, Mn: 0.5-3.0%, Si: 0.05-0.5%, Cr: 0.005-1.0%, B: 0.00050.01% and optionally one or more of V, Ti, Nb, Al, Ni, Cu, Mo, and W, where the contents of the respective optionally present alloy element are V: 0.001-0.2%, Ti: 0.01-0.1%, Nb: 0.001-0.1%, Al: 0.01-0.2%, Ni: 0.01-0.4%, Cu: 0.01-0.8%, Mn: 0.002-1.0%, W: 0.001-1.0%, and the remainder iron and unavoidable impurities, wherein the unavoidable impurities include contents of less than 0.1% P, less than 0.05% S, and less than 0.01% N, and an Al corrosion protection layer applied to the steel substrate, wherein the component is optionally hardened. An adhesive section having an SDR value of 3-30%, determined according to ISO 25178, is provided on the free outer face of the corrosion protection coating for adhering the sheet metal component to another component.
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公开(公告)号：US20240321489A1
公开(公告)日：2024-09-26
申请号：US18574347
申请日：2022-06-23
发明人： Zhaopu XU , Dongdong LI , Guodong SU , Weiwei BU
IPC分类号： H01F1/057 , C21D1/18 , C21D6/00 , C21D9/46 , C22C38/00 , C22C38/06 , C22C38/10 , C22C38/14 , C22C38/16 , H01F41/02 , H02K1/02
CPC分类号： H01F1/0577 , C21D1/18 , C21D6/007 , C21D9/46 , C22C38/002 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/14 , C22C38/16 , H01F41/0253 , H02K1/02 , C22C2202/02
摘要： An R—Fe—B sintered magnet, and a preparation method therefor and use thereof are provided. The surface of the R—Fe—B sintered magnet has an oxide adhesive layer, and is obtained by means of the heat preservation and heat treatment of an R—Fe—B magnet having a composite diffusion layer on the surface thereof. The heat treatment comprises alternately carrying out a low-temperature heat treatment at 750° C.-830° C. and a high-temperature heat treatment at 830° C.-970° C., and a neodymium iron boron green body having the oxide adhesive layer on the surface thereof is obtained. The grain boundary diffusion of the R—Fe—B magnet is optimized, and the coercive force distribution of the magnet is improved. The R—Fe—B sintered magnet can be used in the field of automobiles, wind power generation, household electric motors, medical apparatuses or mobile communication appliances.
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