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1.发明申请公开(公告)号：US20180179612A1
公开(公告)日：2018-06-28
申请号：US15842756
申请日：2017-12-14
Applicant: POSCO
Inventor： Seong In JEONG , Hyung Tae CHUNG , Suk Kyun HWANG
IPC: C21D9/52 , C21D8/02 , C21D6/00 , C22C38/44 , C22C38/02 , C22C38/04 , C22C38/00 , B22D11/00 , B22D11/06
CPC classification number: C21D9/52 , B22D11/002 , B22D11/0622 , B22D11/0651 , C21D6/004 , C21D6/005 , C21D6/008 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D2211/001 , C21D2211/005 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/44
Abstract: Provided are a duplex stainless steel sheet having high surface quality and high corrosion resistance manufactured through a twin roll strip casting process, and a method for manufacturing the duplex stainless steel sheet.
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公开(公告)号：US09975170B2
公开(公告)日：2018-05-22
申请号：US14954218
申请日：2015-11-30
Applicant: POSCO
Inventor： Man Jin Ha , Jin Ho Kim , Suk Kyun Hwang , Sung Jin Park
CPC classification number: B22D11/117 , B22D11/002 , B22D11/0622 , C22C38/001 , C22C38/02 , C22C38/58
Abstract: There is provided a method of manufacturing a high nitrogen duplex stainless steel sheet through a twin roll strip casting process without the occurrence of surface swelling on the high nitrogen duplex stainless steel sheet.
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公开(公告)号：US09797025B2
公开(公告)日：2017-10-24
申请号：US15409348
申请日：2017-01-18
Applicant: ArcelorMittal , Ugitech
Inventor： Jerome Peultier , Amelie Fanica , Nicolas Renaudot , Christophe Bourgin , Eric Chauveau , Marc Mantel
IPC: C21D8/00 , C21D9/52 , B22D11/00 , C21D1/613 , C21D1/60 , C21D9/46 , C21D8/02 , C21D8/06 , C22C38/60 , C22C38/58 , C22C38/54 , C22C38/52 , C22C38/50 , C22C38/48 , C22C38/46 , C22C38/44 , C22C38/42 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , B21B3/02 , B21C1/00 , B21J1/02
CPC classification number: C21D9/525 , B21B1/00 , B21B3/02 , B21C1/003 , B21J1/02 , B22D11/002 , C21D1/60 , C21D1/613 , C21D6/004 , C21D8/0226 , C21D8/0263 , C21D8/065 , C21D9/46 , C21D2211/001 , C21D2211/005 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54 , C22C38/58 , C22C38/60
Abstract: A method for manufacturing a plate, a band, or a coil of hot-rolled steel is provided. The method includes providing an ingot or a slab of steel with a desired composition and a microstructure composed of austenite and 35 to 65% ferrite by volume and hot rolling the ingot or slab at a temperature between 1150 and 1280° C. to obtain a plate, a band or a coil. A method for manufacturing a hot-rolled bar or wire of steel, a steel profile and a forged steel piece are also provided.
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公开(公告)号：US09174272B2
公开(公告)日：2015-11-03
申请号：US14570156
申请日：2014-12-15
Applicant: POSCO
Inventor： Oh-Seong Kweon , Suk-Kyun Hwang , Seong-In Jeong
CPC classification number: B22D11/168 , B22D11/001 , B22D11/002 , B22D11/0622
Abstract: There is provided a strip casting method using a twin roll strip casting process in which molten steel is supplied through an injection nozzle to a region between twin rolls rotating in opposite directions to produce a strip having a predetermined thickness and a high degree of edge quality. The twin roll strip casting method includes: performing the casting process by setting a casting thickness to have a minimal value during an early stage of the casting process in which edge bulging occurs; and performing the casting process by increasing the casting thickness to a maximum value after the molten steel reaches a pre-set target temperature as the casting process proceeds.
Abstract translation: 提供了一种使用双辊带钢铸造方法的带钢铸造方法，其中通过注射喷嘴将钢水供给到沿相反方向旋转的双辊之间的区域，以产生具有预定厚度和高度边缘质量的钢带。 双辊带铸造方法包括：通过在铸造工艺的早期阶段将铸造厚度设定为具有最小值来进行铸造工艺，其中发生边缘凸起; 并且在铸造工序进行到钢水达到预定目标温度之后，通过将铸造厚度增加到最大值来进行铸造工艺。
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公开(公告)号：US20130174948A1
公开(公告)日：2013-07-11
申请号：US13808284
申请日：2011-07-05
Applicant: Jerome Peultier , Amelie Fanica , Nicolas Renaudot , Christophe Bourgin , Eric Chauveau , Marc Mantel
Inventor： Jerome Peultier , Amelie Fanica , Nicolas Renaudot , Christophe Bourgin , Eric Chauveau , Marc Mantel
IPC: C21D8/02 , C22C38/60 , C22C38/58 , C22C38/52 , C22C38/50 , C22C38/48 , C22C38/46 , C22C38/44 , C22C38/42 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , B21B1/00 , C21D8/06
CPC classification number: C21D9/525 , B21B1/00 , B21B3/02 , B21C1/003 , B21J1/02 , B22D11/002 , C21D1/60 , C21D1/613 , C21D6/004 , C21D8/0226 , C21D8/0263 , C21D8/065 , C21D9/46 , C21D2211/001 , C21D2211/005 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54 , C22C38/58 , C22C38/60
Abstract: The invention concerns an austenite-ferrite stainless steel composition, whose composition contains in % by weight: 0.01%≦C≦0.10% 20.0%≦Cr≦24.0% 1.0%≦Ni≦3.0% 0.12%≦N≦0.20% 0.5%≦Mn≦2.0% 1.6%≦Cu≦3.0% 0.05% 5 Mo 5 1.0% W≦0.15% 0.05%≦Mo +W/2≦1.0% 0.2%≦Si≦1.5% Al≦0.05% V≦0.5% Nb≦0.5% Ti≦0.5% B≦0.003% Co≦0.5% REM≦0.1% Ca≦0.03% Mg≦0.1% Se≦0.005% O≦0.01% S≦0.030% P≦0.040% the rest being iron and impurities resulting from the production and the microstructure being composed of austenite and 35 to 65% ferrite by volume, the composition furthermore obeying the following relations: 40≦IF≦65 with IF=10%Cr+5.1%Mo+1.4%Mn+24.3%Si+35%Nb+71.5%Ti−595.4%C−245.1%N−9.3%Ni−3.3%Cu−99.8 and IRCGCU≧32.0 with IRCGCU=%Cr+3.3%Mo+2%Cu+16%N+2.6%Ni−0.7%Mn and 0≦IU≦6.0 with IU=3%Ni+%Cu+%Mn−100%C−25%N−2(%Cr+%Si)−6%Mo+45 as well as a method of manufacture of plates, bands, coils, bars, wires, profiles, forged pieces and molded pieces of this steel.
Abstract translation: 本发明涉及一种奥氏体 - 铁素体不锈钢组合物，其组成包含重量％：0.01％@ C @ 0.10％20.0％@ Cr @ 24.0％1.0％@ Ni @ 3.0％0.12％@ N 0.20％0.5％ Mn@2.0% 1.6％@ Cu @ 3.0％0.05％5 Mo 5 1.0％W@0.15% 0.05%@Mo +W/2@1.0% 0.2％@ Si @ 1.5％Al@0.05% V@0.5% Nb @ 0.5％Ti@0.5% B@0.003% Co@0.5% REM@0.1% Ca@0.03% Mg@0.1% Se@0.005% O@0.01% S@0.030% P@0.040%其余为铁和杂质 生产和微观结构由奥氏体和35至65体积％的铁素体组成，其组成进一步遵循以下关系：IF = 10％时，IF = 10％Cr + 5.1％Mo + 1.4％Mn + 24.3％Si + 35％Nb + 71.5％Ti-595.4％C-245.1％N-9.3％Ni-3.3％Cu-99.8和IRCGCU> = 32.0，IRCGCU =％Cr + 3.3％Mo + 2％Cu + 16％N + 2.6％ Ni-0.7％Mn和0 @ IU @ 6.0，IU = 3％Ni +％Cu +％Mn-100％C-25％N-2（％Cr +％Si）-6％Mo + 45以及制造方法 板，带，线圈，棒，电线，型材，锻造件和这种钢的模制件。
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公开(公告)号：US20120222831A1
公开(公告)日：2012-09-06
申请号：US13040863
申请日：2011-03-04
Applicant: Dhiren Panda , Leigh Wooley , Neal Ross , Gary McQuillis , James D. Edwards
Inventor： Dhiren Panda , Leigh Wooley , Neal Ross , Gary McQuillis , James D. Edwards
IPC: B22D11/16
CPC classification number: B22D11/0697 , B22D11/002
Abstract: A method of continuously casting steel including steps of forming a casting pool of molten steel comprising a carbon content of less than 0.5% by weight on casting surfaces of a pair of internally cooled casting rolls having a nip formed between them, counter rotating the casting surfaces of the casting rolls toward each other to produce a cast steel strip moving downwardly away from the nip between the casting rolls, guiding the cast strip through a first enclosure adjacent the casting rolls as the strip moves away from the casting rolls, the first enclosure having a reducing atmosphere containing carbon monoxide and optionally hydrogen of at least 0.1%, establishing the reducing atmosphere in the first enclosure to control ingress of atmospheric air so as to maintain said atmosphere with a CO to CO2 ratio of at least 1.5 during steady state operation.
Abstract translation: 一种连续铸造钢的方法，包括在其间形成有辊隙的一对内部冷却的铸辊的铸造表面上形成含有小于0.5重量％的碳含量的钢水铸造池的步骤， 的铸造辊朝向彼此以产生从铸辊之间的辊隙向下移动的铸钢带，当铸钢带远离铸辊移动时，通过邻近铸辊的第一外壳引导铸钢带，第一外壳具有 含有至少0.1％的一氧化碳和任选的氢的还原气氛，在第一外壳中建立还原气氛以控制大气空气的进入，以便在稳态操作期间以CO至CO 2比保持至少1.5的CO气氛。
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公开(公告)号：US07066237B2
公开(公告)日：2006-06-27
申请号：US10509404
申请日：2003-03-27
Applicant: Masafumi Miyazaki , Shuichi Inoue , Toshikazu Nishimura , Hiroshige Inoue
Inventor： Masafumi Miyazaki , Shuichi Inoue , Toshikazu Nishimura , Hiroshige Inoue
IPC: B22D11/06
CPC classification number: B22D11/002 , B22D11/0622 , B22D11/1206
Abstract: Methods for casting an austenitic stainless steel thin strip casting through a continuous caster, e.g., a twin-drum type caster, in which the mold walls move synchronous with the casting to obtain a casting, wherein defects, e.g., salt-and-pepper unevenly glossy defects, on a steel sheet formed after cold rolling or cold forming are prevented. In particular, casting an austenitic stainless steel thin strip casting by regulating a pressing force P of mold wall faces against the casting in the range from more than 1.0 to less than 2.5 t/m, and preferably from more than 1.1 to not more than 1.6 t/m. The continuous caster used may be a twin-drum type continuous caster, with a drum radius R(m) and a pressing force P(t/m) of mold wall faces satisfying the relation 0.5≦(√{square root over (R)})×P≦2.0, and preferably 0.8≦(√{square root over (R)})×P≦1.2.
Abstract translation: 通过连续铸造机铸造奥氏体不锈钢薄带铸造方法，例如双辊式铸造机，其中模具壁与铸件同步移动以获得铸件，其中缺陷例如盐和胡椒不均匀 防止了在冷轧或冷成型后形成的钢板上的光泽缺陷。 特别地，通过将模具壁面的压力P调节在大于1.0至小于2.5t / m 2，优选大于1.1至不大于1.6的范围内，铸造奥氏体不锈钢薄带铸件 t / m。 所使用的连续脚轮可以是双鼓式连续脚轮，其鼓半径R（m）和模具壁面的按压力P（t / m）满足关系0.5 <=（√{平方根超过（R ）xP <= 2.0，优选0.8 <=（√{平方根超过（R）xP <= 1.2。
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8.发明公开
公开(公告)号：US20230271247A1
公开(公告)日：2023-08-31
申请号：US18005521
申请日：2021-06-16
Applicant: Primetals Technologies Austria GmbH
Inventor： Simon GROSSEIBER , Thomas LENGAUER , Bernd LINZER , Gero SCHWARZ , Roman WINKLER , Michael ZAHEDI
CPC classification number: B22D11/1206 , B22D11/002 , B22D11/142 , B22D11/16 , B21B37/28 , B21B13/22 , B21B1/463 , B21B2001/081
Abstract: A casting-rolling integrated plant that is capable of producing, from a steel melt, in a cost-effective manner and with high productivity, a hot-rolled finished strip having a thickness of ≤0.6 mm, an excellent flatness, and an excellent profile by dividing the thickness reduction into at least three stages (roughing, intermediate and finishing train), measuring the actual profile after the roughing, intermediate and finishing train, and equipping the stands in the roughing, intermediate and finishing train with actuators for influencing the strip profile and/or the strip flatness.
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公开(公告)号：US09863015B2
公开(公告)日：2018-01-09
申请号：US14371053
申请日：2013-02-18
Applicant: Baoshan Iron & Steel Co., Ltd.
Inventor： Xiufang Wang , Yuan Fang , Yan Yu , Jianchun Wu , Bo Qin
IPC: C21D8/02 , C21D8/00 , C22C38/00 , C21D9/52 , C22C38/02 , C22C38/04 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , B22D11/00 , B22D11/06 , B21B1/46
CPC classification number: C21D8/0215 , B21B1/463 , B22D11/001 , B22D11/002 , B22D11/0622 , B22D11/0637 , C21D8/00 , C21D8/0263 , C21D9/52 , C21D2211/005 , C21D2211/009 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50
Abstract: A manufacturing method for strip casting 550 MPa-grade high strength atmospheric corrosion-resistant steel strip, comprising the following steps: 1) smelting, where the chemical composition of a molten steel is that: C is between 0.03-0.08%, Si≦0.4%, Mn is between 0.6-1.5%, P is between 0.07-0.22%, S≦0.01%, N≦0.012%, Cu is between 0.25-0.8%, Cr is between 0.3-0.8%, and Ni is between 0.12-0.4%, additionally, also comprised is at least one micro-alloying element among Nb, V, Ti, and Mo, where Nb is between 0.01-0.08%, V is between 0.01-0.08%, Ti is between 0.01-0.08%, and Mo is between 0.1-0.4%, and where the remainder is Fe and unavoidable impurities; 2) strip casting, where a 1-5 mm-thick cast strip is casted directly; 3) cooling the strip, where the cooling rate is greater than 20° C./s; 4) online hot rolling the cast strip, where the hot rolling temperature is between 1050-1250° C., where the reduction rate is between 20-50%, and where the deformation rate is >20 s−1; austenite online recrystallizing after hot rolling, where the thickness of the hot rolled strip is between 0.5-3.0 mm; and, 5) cooling and winding, where the cooling rate is between 10-80° C./s, and where the winding temperature is between 570-720° C. The microscopic structure of a steel strip acquired is primarily constituted by fine polygonal ferrite and pearlite.
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公开(公告)号：US09587286B2
公开(公告)日：2017-03-07
申请号：US13808284
申请日：2011-07-05
Applicant: Jerome Peultier , Amelie Fanica , Nicolas Renaudot , Christophe Bourgin , Eric Chauveau , Marc Mantel
Inventor： Jerome Peultier , Amelie Fanica , Nicolas Renaudot , Christophe Bourgin , Eric Chauveau , Marc Mantel
IPC: C21D8/00 , C21D8/02 , C21D6/00 , C21D9/46 , C22C38/42 , C22C38/44 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , B21B1/00 , C21D8/06 , C22C38/58 , C22C38/60
CPC classification number: C21D9/525 , B21B1/00 , B21B3/02 , B21C1/003 , B21J1/02 , B22D11/002 , C21D1/60 , C21D1/613 , C21D6/004 , C21D8/0226 , C21D8/0263 , C21D8/065 , C21D9/46 , C21D2211/001 , C21D2211/005 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54 , C22C38/58 , C22C38/60
Abstract: The present invention provides an austenite-ferrite stainless steel. The steel composition contains in % by weight: 0.01%≦C≦0.10% 20.0%≦Cr≦24.0% 1.0%≦Ni≦3.0% 0.12%≦N≦0.20% 0.5%≦Mn≦2.0% 1.6%≦Cu≦3.0% 0.05%≦Mo≦1.0% W≦0.15% 0.05%≦Mo+W/2≦1.0% 0.2%≦Si≦1.5% Al≦0.05% V≦0.5% Nb≦0.5% Ti≦0.5% B≦0.003% Co≦0.5% REM≦0.1% Ca≦0.03% Mg≦0.1% Se≦0.005% O≦0.01% S≦0.030% P≦0.040% the rest being iron and impurities resulting from the production and the microstructure being composed of austenite and 35 to 65% ferrite by volume, the composition furthermore obeying the following relations: 40≦IF≦65 with IF=10% Cr+5.1% Mo+1.4% Mn+24.3% Si+35% Nb+71.5% Ti−595.4% C−245.1% N−9.3% Ni−3.3% Cu−99.8 and IRCGCU≧32.0 with IRCGCU=% Cr+3.3% Mo+2% Cu+16% N+2.6% Ni−0.7% Mn and 0≦IU≦6.0 with IU=3% Ni+% Cu+% Mn−100% C−25% N−2(% Cr+% Si)−6% Mo+45 as well as a method of manufacture of plates, bands, coils, bars, wires, profiles, forged pieces and molded pieces of this steel.
Abstract translation: 本发明涉及一种奥氏体 - 铁素体不锈钢组合物，其组成包含重量％：0.01％@ C @ 0.10％20.0％@ Cr @ 24.0％1.0％@ Ni @ 3.0％0.12％@ N 0.20％0.5％ Mn@2.0% 1.6％@ Cu @ 3.0％0.05％5 Mo 5 1.0％W@0.15% 0.05%@Mo +W/2@1.0% 0.2％@ Si @ 1.5％Al@0.05% V@0.5% Nb @ 0.5％Ti@0.5% B@0.003% Co@0.5% REM@0.1% Ca@0.03% Mg@0.1% Se@0.005% O@0.01% S@0.030% P@0.040%其余为铁和杂质 生产和微观结构由奥氏体和35至65体积％的铁素体组成，其组成进一步遵循以下关系：IF = 10％时，IF = 10％Cr + 5.1％Mo + 1.4％Mn + 24.3％Si + 35％Nb + 71.5％Ti-595.4％C-245.1％N-9.3％Ni-3.3％Cu-99.8和IRCGCU> = 32.0，IRCGCU =％Cr + 3.3％Mo + 2％Cu + 16％N + 2.6％ Ni-0.7％Mn和0 @ IU @ 6.0，IU = 3％Ni +％Cu +％Mn-100％C-25％N-2（％Cr +％Si）-6％Mo + 45以及制造方法 板，带，线圈，棒，电线，型材，锻造件和这种钢的模制件。
