公开(公告)号：US20240327963A1

公开(公告)日：2024-10-03

申请号：US18258439

申请日：2021-09-14

申请人： LAIWU STEEL YINSHAN SECTION CO., LTD.

发明人： Zhongxue WANG ,  Xiaoxin HUO ,  Linxiu DU ,  Heng MA ,  Aijiao CHEN ,  Chuanzhi DU ,  Wei NING ,  Yue LIU ,  Hongyan WU ,  Kang HE ,  Lifeng ZHAO

IPC分类号： C22C38/12 ,  B22D11/00 ,  B22D11/22 ,  C21C5/30 ,  C21C7/06 ,  C21C7/072 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04

CPC分类号： C22C38/12 ,  B22D11/22 ,  C21C5/30 ,  C21C7/06 ,  C21C7/072 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  B22D11/001

摘要： Disclosed are a V-N microalloyed steel and a method for producing a V-N microalloyed and surface-crack-free continuous casting blank. The V-N microalloyed steel is composed of the following chemical components by mass percentage: 0.09%-0.13% of C, 0.1%-0.4% of Si, 1.0%-3.0% of Mn, less than or equal to 0.05% of P, less than or equal to 0.05% of S, 0.1%-0.4% of V, 0.011%-0.2% of N and the balance of Fe and unavoidable impurity elements. A continuous casting blank is subjected to component control according to the chemical components of the V-N microalloyed steel; and the production method therefor comprises converter smelting, LF refining and continuous casting steps in sequence. According to the present invention, by means of reasonable component design and smelting and continuous casting processes, the thermoplasticity of the continuous casting blank is improved, so that a high-temperature brittle region is prevented in a casting blank straightening region of the continuous casting blank or the thermoplasticity is good enough such that no surface crack appears, the casting blank is good in terms of surface quality and does not need to be cleaned, and the production efficiency is improved.

公开(公告)号：US12077832B2

公开(公告)日：2024-09-03

申请号：US18025862

申请日：2021-09-28

申请人： NIPPON STEEL CORPORATION

发明人： Yuya Suzuki ,  Kengo Takeda

IPC分类号： C21D9/46 ,  B22D11/00 ,  B32B15/01 ,  C21D6/00 ,  C21D8/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/20 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/30 ,  C22C38/34 ,  C22C38/38 ,  C22C38/42 ,  C22C38/48 ,  C22C38/58 ,  C22C38/60 ,  C23C2/28 ,  C23C2/40

CPC分类号： C21D9/46 ,  B22D11/001 ,  B32B15/013 ,  C21D6/001 ,  C21D6/002 ,  C21D6/004 ,  C21D6/005 ,  C21D6/007 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0263 ,  C21D8/0278 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/105 ,  C22C38/12 ,  C22C38/14 ,  C22C38/20 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/30 ,  C22C38/34 ,  C22C38/38 ,  C22C38/42 ,  C22C38/48 ,  C22C38/58 ,  C22C38/60 ,  C23C2/28 ,  C21D2211/005 ,  C21D2211/009 ,  C23C2/40

摘要： A steel sheet according to an aspect of the present invention has a predetermined chemical composition, in which a metallographic structure at a ¼ thickness portion includes, by volume percentage, a total of 50% or more of one or both of martensite and bainite and 8% or more of residual austenite, an average value of aspect ratios of prior austenite grains is 5.0 or more, number density of AlN is 3000 pieces/mm2 or more and less than 6000 pieces/mm2 at a depth position of 30 μm from a sheet surface, an internal oxidation layer in which at least a part of a crystal grain boundary is coated with an oxide is provided from the sheet surface to a depth of 5.0 μm or more, grain boundary coverage of the oxide is 60% or more in a region from the sheet surface to a depth of 5.0 μm, and a tensile strength is 980 MPa or more.

公开(公告)号：US11969781B2

公开(公告)日：2024-04-30

申请号：US17533268

申请日：2021-11-23

申请人： Applied Materials, Inc.

发明人： Subramanya P. Herle

IPC分类号： B22D11/06 ,  B22D11/00 ,  B22D11/14 ,  H01M4/04

CPC分类号： B22D11/0611 ,  B22D11/001 ,  B22D11/144 ,  H01M4/0409

摘要： A method and apparatus for manufacturing a flexible layer stack, and to a flexible layer stack. Implementations of the present disclosure particularly relate to a method and apparatus for coating flexible substrates with a low melting temperature metal or metal alloy. In one implementation, a method is provided. The method includes delivering a transfer liquid to a quenching surface of a rotating casting drum. The method further includes forming a material layer stack over the rotating casting drum by delivering a molten metal or molten metal alloy toward the quenching surface of the rotating casting drum. The method further includes transferring the material layer stack from the rotating casting drum to a continuous flexible substrate, wherein the quenching surface of the rotating casting drum is cooled to a temperature at which the layers of the material layer stack solidify.

公开(公告)号：US11938533B2

公开(公告)日：2024-03-26

申请号：US17392730

申请日：2021-08-03

申请人： FISHER CONTROLS INTERNATIONAL LLC

发明人： Steven K. Hostetter ,  Thomas N. Gabriel

IPC分类号： B22D19/04 ,  B22C9/10 ,  B22D11/00 ,  B22D19/08 ,  B22D19/16 ,  F16K1/42 ,  F16K1/46 ,  F16K25/00 ,  F16K27/00 ,  F16K27/02 ,  F16K5/02

CPC分类号： B22D11/001 ,  B22D19/08 ,  B22D19/16 ,  F16K1/42 ,  F16K1/46 ,  F16K25/005 ,  F16K27/00 ,  F16K27/02 ,  F16K5/0221

摘要： A valve body having a ring of dissimilar material and a method of forming the valve body are described. The valve body includes an inlet, an outlet and a ring of dissimilar material. The method includes forming a valve core, splitting the valve core, placing a metal ring of dissimilar material between two pieces of the valve core, casting a valve body around the valve core, and fusing the metal ring to the valve body.

公开(公告)号：US11833580B2

公开(公告)日：2023-12-05

申请号：US17533236

申请日：2021-11-23

申请人： Applied Materials, Inc.

发明人： Subramanya P. Herle

IPC分类号： B22D11/06 ,  B22D11/00 ,  B22D11/14 ,  H01M4/04

CPC分类号： B22D11/0611 ,  B22D11/001 ,  B22D11/144 ,  H01M4/0409

摘要： A method and apparatus for manufacturing a flexible layer stack, and to a flexible layer stack. Implementations of the present disclosure particularly relate to a method and apparatus for coating flexible substrates with a low melting temperature metal or metal alloy. In one implementation, a method is provided. The method includes delivering a transfer liquid to a quenching surface of a rotating casting drum. The method further includes forming a material layer stack over the rotating casting drum by delivering a molten metal or molten metal alloy toward the quenching surface of the rotating casting drum. The method further includes transferring the material layer stack from the rotating casting drum to a continuous flexible substrate, wherein the quenching surface of the rotating casting drum is cooled to a temperature at which the layers of the material layer stack solidify.

公开(公告)号：US20230257839A1

公开(公告)日：2023-08-17

申请号：US18014434

申请日：2021-07-07

申请人： ArcelorMittal

发明人： Frédéric BONNET ,  Valérie DAESCHLER ,  Thierry MASTRORILLO

IPC分类号： C21C7/00 ,  B22D11/00 ,  C21C7/06 ,  C22C38/54 ,  C22C38/50 ,  C22C38/48 ,  C22C38/44 ,  C22C38/42 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C38/46

CPC分类号： C21C7/0037 ,  B22D11/001 ,  C21C7/06 ,  C21C7/0087 ,  C22C38/54 ,  C22C38/50 ,  C22C38/48 ,  C22C38/44 ,  C22C38/42 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/002 ,  C22C38/001 ,  C22C38/46 ,  C21C2007/0018

摘要： A method of casting a steel semi-product from a liquid steel, the steel semi-product having a targeted composition in titanium of at least 3.5% in weight.

公开(公告)号：US20190193187A1

公开(公告)日：2019-06-27

申请号：US16293264

申请日：2019-03-05

申请人： ArcelorMittal

发明人： Astrid Perlade ,  Samuel Vignier ,  Frederic Kegel ,  Artem Arlazarov

IPC分类号： B23K11/11 ,  C21D6/00 ,  C21D8/02 ,  C21D8/04 ,  C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/12 ,  C21D9/50 ,  B22D11/00 ,  C23C2/12 ,  C22C38/00 ,  C22C38/06 ,  C23C2/06

CPC分类号： B23K11/11 ,  B22D11/001 ,  B23K11/166 ,  B23K2101/18 ,  B23K2101/34 ,  B23K2103/04 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0263 ,  C21D8/0278 ,  C21D8/0436 ,  C21D9/46 ,  C21D9/50 ,  C21D9/505 ,  C21D2211/001 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C23C2/06 ,  C23C2/12

摘要： A spot welded joint of at least two steel sheets is provided. At least one of the steel sheets presents yield strength above or equal to 600 MPa, an ultimate tensile strength above or equal to 1000 MPa, uniform elongation above or equal to 15%. The base metal chemical composition includes 0.05≤C≤0.21%, 4.0≤Mn≤7.0%, 0.5≤Al≤3.5%, Si≤2.0%, Ti≤0.2%, V≤0.2%, Nb≤0.2%, P≤0.025%, B≤0.0035%, and the spot welded joint contains a molten zone microstructure containing more than 0.5% of Al and containing a surface fraction of segregated areas lower than 1%, said segregated areas being zones larger than 20 μm2 and containing more than the steel nominal phosphorus content.

公开(公告)号：US10053757B2

公开(公告)日：2018-08-21

申请号：US14415448

申请日：2013-07-15

申请人： TATA STEEL IJMUIDEN BV

发明人： David Neal Hanlon ,  Theo Arnold Kop ,  Stefanus Matheus Cornelis Van Bohemen

IPC分类号： C22C38/38 ,  C21D8/04 ,  C22C38/04 ,  C22C38/06 ,  B32B15/01 ,  C22C38/00 ,  C22C38/02 ,  C22C38/28 ,  C22C38/32 ,  B22D11/00 ,  C21D6/00 ,  C21D8/02 ,  C21D9/52

CPC分类号： C22C38/38 ,  B22D11/001 ,  B32B15/013 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D8/021 ,  C21D8/0215 ,  C21D8/0226 ,  C21D8/0263 ,  C21D8/0415 ,  C21D8/0426 ,  C21D9/52 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28 ,  C22C38/32

摘要： A process for producing hot-rolled steel strip with a tensile strength of between 760 and 940 MPa and a steel produced therewith, suitable for producing parts by working such as press forming, bending or stretch flanging.

公开(公告)号：US09999918B2

公开(公告)日：2018-06-19

申请号：US13275405

申请日：2011-10-18

申请人： Christopher Ronald Killmore ,  James Geoffrey Williams

发明人： Christopher Ronald Killmore ,  James Geoffrey Williams

IPC分类号： B22D11/00 ,  B22D11/06 ,  B22D11/117 ,  C22C38/02 ,  C22C38/04

CPC分类号： B22D11/001 ,  B22D11/0622 ,  B22D11/117 ,  C22C38/02 ,  C22C38/04

摘要： A steel product having, by weight, less than 0.25% carbon, between 0.20 and 2.0% manganese, between 0.05 and 0.50% silicon, aluminum 0.008% or less by weight, and at least one element selected from the group consisting of titanium between about 0.01% and about 0.20%, niobium between about 0.01% and about 0.20%, molybdenum between about 0.05% and about 0.50%, and vanadium between about 0.01% and about 0.20%, and having a microstructure comprised of a majority bainite, and fine oxide particles of silicon and iron distributed through the steel microstructure of average precipitate size less than 50 nanometers. The yield strength of the steel product may be at least 55 ksi (380 MPa) or the tensile strength of at least 500 MPa, or both. The steel product may have total elongation of at least 6% or 10%, and thickness less than 3.0 mm.

公开(公告)号：US20170250016A1

公开(公告)日：2017-08-31

申请号：US15440755

申请日：2017-02-23

申请人： TDK CORPORATION

发明人： Masashi MIWA ,  Takurou IWASA

IPC分类号： H01F1/057 ,  C22C38/14 ,  C22C38/10 ,  C22C38/06 ,  C21D3/06 ,  B22F9/04 ,  B22F3/16 ,  B22F5/00 ,  B22D11/00 ,  C22C38/16 ,  C22C38/00

CPC分类号： H01F1/0577 ,  B22D11/001 ,  B22F3/16 ,  B22F5/00 ,  B22F9/04 ,  B22F2009/042 ,  B22F2009/044 ,  B22F2201/11 ,  B22F2201/20 ,  B22F2301/355 ,  B22F2998/10 ,  C21D3/06 ,  C22C33/0278 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  C22C2202/02 ,  H01F1/058

摘要： An R-T-B based permanent magnet includes main phase grains composed of R2T14B type compound. R is a rare earth element. T is iron group element(s) essentially including Fe or Fe and Co. B is boron. An average grain size of the main phase grains is 0.8 μm or more and 2.8 μm or less. The R-T-B based permanent magnet contains at least C and Zr in addition to R, T, and B. B is contained at 0.75 mass % or more and 0.88 mass % or less. Zr is contained at 0.65 mass % or more and 5.00 mass % or less. A formula (1) of 5.0≦[B]+[C]−[Zr]≦5.6 is satisfied, where [B] is a B content represented by atom %, [C] is a C content represented by atom %, and [Zr] is a Zr content represented by atom %.