公开(公告)号：US12121957B1

公开(公告)日：2024-10-22

申请号：US18731158

申请日：2024-05-31

申请人： Inner Mongolia University of Science & Technology

发明人： Xinfang Zhang ,  Mengcheng Zhou ,  Chengbao Liu ,  Changhao Liu ,  Zhiyong Chen ,  Baoyu Zhang ,  Xiaoshan Huang ,  Yulong Chen ,  Zhongxue Wang ,  Heng Ma ,  Yubao Liu ,  Dandan Zhang

IPC分类号： B22D11/11 ,  B22D11/00

CPC分类号： B22D11/11 ,  B22D11/002

摘要： A method for improving smooth running of casting of rare earth stainless steel using pulse current includes the following steps: setting corresponding initial pulse voltage, pulse current, and pulse frequency in accordance with difference of rare earth element content in molten steel; and adjusting the pulse voltage, pulse current, and pulse frequency according to position change of stopper rod until the end of continuous casting. The method can stably improve the clogging of immersion nozzle during continuous casting, the smooth running of continuous casting and production efficiency, and decrease production cost.

公开(公告)号：US12090547B1

公开(公告)日：2024-09-17

申请号：US18468065

申请日：2023-09-15

申请人： Chongqing University

发明人： Mujun Long ,  Songyuan Ai ,  Dengfu Chen ,  Yongzhi Zhou ,  Yanming Zhang ,  Yizhe Du

IPC分类号： B22D11/20 ,  B22D11/00 ,  B22D11/22

CPC分类号： B22D11/20 ,  B22D11/001 ,  B22D11/225

摘要： Provided is an online cooperative control method for soft reduction and heavy reduction in bloom continuous casting. A quantitative relationship of a theoretical ultimate reduction amount to a reduction position is accurately determined according to an offline three-dimensional solidification and heat transfer model for a continuous casting bloom and a three-dimensional reduction model for a continuous casting bloom under thermo-mechanical coupling; a thermal state of a continuous casting bloom, soft reduction and heavy reduction zones, and a total reduction amount are calculated in real time with an online three-dimensional solidification and heat transfer calculation model for a continuous casting bloom; actual reduction amounts of the rollers for soft reduction and heavy reduction are calculated and distributed online based on a real-time equivalent central solid fraction and a theoretical ultimate reduction amount of each reduction roller. Online cooperative control of soft reduction and heavy reduction in bloom continuous casting is realized.

公开(公告)号：US12042849B2

公开(公告)日：2024-07-23

申请号：US18255805

申请日：2021-12-02

申请人： SAFRAN

发明人： Pierre Jean Sallot

IPC分类号： B22D11/041 ,  B22D7/06 ,  B22D11/00 ,  B22D11/059

CPC分类号： B22D11/041 ,  B22D7/06 ,  B22D11/001 ,  B22D11/059

摘要： A casting ring having a first section made of a heat-conductive material and a second section made of a MAX phase alloy material, and a method for obtaining a product made of titanium alloy or a titanium-aluminum intermetallic compound by plasma torch melting, the alloy having an oriented structure, the method including heating the molten alloy surface in the casting ring with a plasma torch; cooling a cold zone of the casting ring over a length L1, the cooling forming a semi-solid crown of alloy; heating a hot zone of the casting ring over a length L2, thereby forming a solidification front, the flatness of which relative to a plane perpendicular to a drawing direction is less than 10°; and drawing the solidified alloy at a speed of more than 10−4 m/s in the drawing direction.

公开(公告)号：US20240209479A1

公开(公告)日：2024-06-27

申请号：US18533799

申请日：2023-12-08

申请人： Resonac Corporation

发明人： Takuya ARAYAMA

IPC分类号： C22C21/02 ,  B22D11/00 ,  C22F1/00 ,  C22F1/043 ,  C22F1/05

CPC分类号： C22C21/02 ,  B22D11/003 ,  C22F1/002 ,  C22F1/043 ,  C22F1/05 ,  C22C2200/00

摘要： Provided is an aluminum alloy forging material having an alloy composition including Cu: 0.30 mass % to 1.0 mass %, Mg: 0.80 mass % to 1.8 mass %, Si: 0.90 mass % to 1.9 mass %, Mn: 0.30 mass % to 1.2 mass %, Fe: 0.20 mass % to 0.65 mass %, Zn: 0.25 mass % or less, Cr: 0.050 mass % to 0.30 mass %, Ti: 0.01 mass % to 0.1 mass %, B: 0.0010 mass % to 0.030 mass %, and Zr: 0.0010 mass % to 0.050 mass %, and having a ratio Fe/Mn of less than 1.4, and with the remainder being made up of Al and unavoidable impurities, wherein an average crystal particle size of an alloy structure after forging is 50 μm to 120 μm, and an average crystal particle size of an AlFeSi(Mn)-based compound present at crystal grain boundaries is 3.0 μm or less.

公开(公告)号：US20240200167A1

公开(公告)日：2024-06-20

申请号：US18287188

申请日：2021-06-03

申请人： Jiangsu University

发明人： Yutao ZHAO ,  Xizhou KAI ,  Gang CHEN ,  Yanjie PENG ,  Ran TAO ,  Xiangfeng LIANG

IPC分类号： C22C1/10 ,  B22D11/00 ,  B22D11/06 ,  B22D11/115 ,  C22C21/00 ,  C22C21/02

CPC分类号： C22C1/1052 ,  B22D11/003 ,  B22D11/0622 ,  B22D11/115 ,  C22C21/00 ,  C22C21/02

摘要： An AMC, and in particular to an AMC with high strength, high toughness, high thermal conductivity, and good weldability for a 5G base station and a preparation method thereof. A strip of the AMC with high strength, high toughness, high thermal conductivity, and good weldability for a 5G base station can be prepared by an electromagnetically and ultrasonically-controlled twin-roll continuous casting device developed and designed based on chemical composition designing, in-situ nanoparticle strengthening and refinement, and REM microalloying. The composite strip prepared by this technology has fine grains, nano-REM precipitated phases in grains, and in-situ nano-ceramic particles with high thermal conductivity at grain boundaries, which significantly improves strength, toughness, and thermal conductivity of the alloy at room temperature, and increases a grain boundary content and effectively improves roll cold weldability of the alloy strip since the alloy composition design with a low melting point and the significant grain refinement.

公开(公告)号：US20240200166A1

公开(公告)日：2024-06-20

申请号：US18287187

申请日：2021-06-03

申请人： Jiangsu University

发明人： Xizhou KAI ,  Yutao ZHAO ,  Yanjie PENG ,  Gang CHEN ,  Ruikun CHEN ,  Lin WU ,  Ran TAO ,  Xiangfeng LIANG

IPC分类号： C22C1/10 ,  B22D11/00 ,  B22D11/114 ,  C22C21/00 ,  C22C21/10 ,  C22F1/00 ,  C22F1/053

CPC分类号： C22C1/1052 ,  B22D11/003 ,  B22D11/114 ,  C22C21/003 ,  C22C21/10 ,  C22F1/002 ,  C22F1/053

摘要： The present disclosure relates to an aluminum alloy material, and specifically to a weldable in-situ nano-strengthened rare-earth metal (REM)-containing aluminum alloy with high strength and toughness and a preparation method thereof. In the present disclosure, in-situ nano-ceramic particles and REMs simultaneously introduced into an Al—Zn—Mg alloy can effectively refine the grains and significantly improve the strength and toughness of the alloy; and REM-containing nano-precipitated phases and in-situ nanoparticles distributed in the grains or at grain boundaries can also significantly increase a recrystallization temperature of the alloy, effectively inhibit the dynamic recovery, reduce the re-dissolution of alloying elements, and improve the weldability of the alloy.

公开(公告)号：US20240133011A1

公开(公告)日：2024-04-25

申请号：US18238619

申请日：2023-08-27

申请人： MITSUBISHI MATERIALS CORPORATION

发明人： Masahiro Kataoka ,  Keiichiro Oishi ,  Shinobu Satou ,  Kanta Dairaku

IPC分类号： C22F1/08 ,  B22D11/00 ,  C22C1/02 ,  C22C9/02

CPC分类号： C22F1/08 ,  B22D11/005 ,  C22C1/02 ,  C22C9/02

摘要： This continuous cast wire rod contains Cu: 62.0 mass % or greater and 70.0 mass % or less, Sn: 0.3 mass % or greater and 0.9 mass % or less, Zr: 0.0050 mass % or greater and 0.1000 mass % or less, and P: 0.0050 mass % or greater and 0.1000 mass % or less, with a balance being Zn and impurities, and a mass ratio Zr/P of Zr to P is 0.3 or greater.

公开(公告)号：US20240068079A1

公开(公告)日：2024-02-29

申请号：US18260857

申请日：2022-01-07

申请人： YANTAI MANOIR HEAT RESISTANT ALLOYS CO., LTD.

发明人： Minghao ZHANG ,  Kun DU ,  Jian PEI ,  Tianzhen DING ,  Guowei YE

IPC分类号： C22C38/44 ,  B22D11/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/48 ,  C22C38/50

CPC分类号： C22C38/44 ,  B22D11/002 ,  B22D11/006 ,  C22C38/001 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/48 ,  C22C38/50

摘要： The present invention provides a high-aluminum austenitic alloy and a high-aluminum austenitic centrifugal casting pipe. The high-aluminum austenitic alloy and the high-aluminum austenitic centrifugal casting pipe have excellent anti-corrosion capabilities and creep resistance at a temperature of 900° C. or above, while having required mechanical properties. In weight percentage, the high-aluminum austenitic alloy or the high-aluminum austenitic centrifugal casting pipe of the present invention is composed of the elements of: C, 0.3-0.7%; Mn, 0-0.5%; Si, 0-0.5%; Cr, 20-26%; Ni, 40-50%; Al, 3.5-5%; Ti, 0.01-0.3%; Zr, 0.01-0.3%; Nb, 0.1-1%; Ta, 0.01-2%; Mo, 0.01-1%; W, 0.01-1.9%; N, 0.001-0.04%; Re, 0.03-0.3%; the remainder being Fe and inevitable impurities. The present invention also relates to a method for manufacturing the high-aluminum austenitic alloy and the high-aluminum austenitic centrifugal casting pipe of the present invention.

公开(公告)号：US20240035136A1

公开(公告)日：2024-02-01

申请号：US18487373

申请日：2023-10-16

申请人： Novelis Inc.

发明人： Sazol Kumar Das ,  Milan Felberbaum

IPC分类号： C22F1/05 ,  B22D11/12 ,  C22F1/04 ,  C22C21/16 ,  C22F1/043 ,  C22F1/057 ,  C22C21/12 ,  C22F1/053 ,  C22C21/08 ,  C22C21/14 ,  B22D11/00 ,  C22C21/02

CPC分类号： C22F1/05 ,  B22D11/1206 ,  C22F1/04 ,  C22C21/16 ,  C22F1/043 ,  C22F1/057 ,  C22C21/12 ,  C22F1/053 ,  C22C21/08 ,  C22C21/14 ,  B22D11/003 ,  C22C21/02

摘要： Described herein are 6xxx series aluminum alloys with unexpected properties and novel methods of producing such aluminum alloys. The aluminum alloys are highly formable and exhibit high strength. The alloys are produced by continuous casting and can be hot rolled to a final gauge and/or a final temper. The alloys can be used in automotive, transportation, industrial, and electronics applications, just to name a few.

公开(公告)号：US20240033818A1

公开(公告)日：2024-02-01

申请号：US18357102

申请日：2023-07-22

申请人： SMS group GmbH

发明人： Andreas NAUJOCK ,  Klaus-Peter EBERWEIN ,  Lothar FISCHER ,  Jochen WANS ,  Axel WEYER ,  Ulrich WIEGARD ,  Judith AHRENS

IPC分类号： B22D45/00 ,  B22D11/124 ,  B22D11/00

CPC分类号： B22D45/005 ,  B22D11/124 ,  B22D11/005

摘要： The disclosure relates to a method for operating a cooling chamber in a strand guide device and the strand guide device 10 as such. The strand guide device serves to deflect a freshly cast strand, typically made of metal, into the horizontal. During the deflection, the cast strand passes through a cooling chamber 1 inside the strand guide device 2, in which it is sprayed with a coolant 33, with the formation of steam 5. The steam forms at least a steam-air mixture 5′ with sucked-in secondary air, which is sucked out of the cooling chamber by a suction device 20. In particular, in order to reduce the pollutant content of the sucked-in and sucked-off steam-air mixture 5′ and its emission into the environment, the present invention provides for pollutants, primarily dust, located in the steam-air mixture 5′ by a separator 6, 6′ to deplete.