公开(公告)号：US20140363694A1

公开(公告)日：2014-12-11

申请号：US14241644

申请日：2012-02-21

申请人： Cheng Liu ,  Radhakanta Rana

发明人： Cheng Liu ,  Radhakanta Rana

IPC分类号： C21D8/02 ,  C22C38/34 ,  C22C38/32 ,  C22C38/58 ,  C22C38/54 ,  C22C38/50 ,  C22C38/44 ,  C22C38/42 ,  C22C38/28 ,  C22C38/22 ,  C22C38/20 ,  C22C38/16 ,  C22C38/14 ,  C22C38/12 ,  C22C38/08 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C23C2/02 ,  C25D5/36 ,  C21D9/46 ,  C22C38/38

CPC分类号： C21D8/0236 ,  C21D1/673 ,  C21D8/0226 ,  C21D8/0263 ,  C21D8/0415 ,  C21D8/0426 ,  C21D8/0436 ,  C21D8/0473 ,  C21D9/46 ,  C21D2211/001 ,  C21D2211/004 ,  C21D2211/005 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/20 ,  C22C38/22 ,  C22C38/28 ,  C22C38/32 ,  C22C38/34 ,  C22C38/38 ,  C22C38/42 ,  C22C38/44 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58 ,  C23C2/02 ,  C25D5/36 ,  Y10T428/12757 ,  Y10T428/12799

摘要： A low density high strength steel sheet including 0.15% to 0.25% C, 2.5% to 4% Mn, 0.02% or less P, 0.015% or less S, 6% to 9% Al and 0.01% or less N, the balance being iron and inevitable impurities, wherein 1.7·(Mn—Al)+52.7·C is at least 3 and at most 4.5. A method of producing the low density and high strength steel sheet.

摘要翻译： 包括0.15％至0.25％的C，2.5％至4％的Mn，0.02％以下的P，0.015％以下的S，6％〜9％的Al和0.01％以下的N的低密度高强度钢板，余量为 铁和不可避免的杂质，其中1.7·（Mn-Al）+ 52.7℃至少为3，最多为4.5。 一种生产低密度和高强度钢板的方法。

公开(公告)号：US20100065161A1

公开(公告)日：2010-03-18

申请号：US12447625

申请日：2007-10-24

申请人： Brigitte Hammer ,  Thomas Heller ,  Johann Wilhelm Schmitz ,  Jochen Wans

发明人： Brigitte Hammer ,  Thomas Heller ,  Johann Wilhelm Schmitz ,  Jochen Wans

IPC分类号： C21D8/04 ,  B22D23/00 ,  B22D25/02

CPC分类号： C21D8/0415 ,  B22D11/001 ,  C21D8/0426 ,  C21D8/0436 ,  C21D8/0473 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28

摘要： A method, which allows high-tensile flat steel products to be manufactured with less effort includes a steel that forms a multi-phase microstructure and contains (in wt. %) 0.10-0.15% C, 0.80-1.20 % Mn, up to 0.030% P, up to 0.004 % S, 1.10-1.30 % Si, 0.0-0.05% Al, up to 0.0060% N, 0.30-0.60% Cr, 0.080-0.120% Ti, 0.040-0.060% Nb, 0.150-0.250% Mo remainder iron and unavoidable impurities, being cast into a cast strip having a thickness of 1-4 mm. The cast strip is hot-rolled in-line into a hot-rolled strip having a thickness of 0.5-3.2 mm in a continuous process at a final hot-rolling temperature ranging from 850 to 1000° C., the deformation degree being greater than 20%. The hot-rolled strip is coiled at a coiling temperature ranging from 450 to 700° C., so as to obtain a hot-rolled strip, which has a minimum tensile strength Rm of 880 MPa at a minimum breaking elongation A80 of 5%.

摘要翻译： 允许以较小的功率制造高强度扁钢产品的方法包括形成多相微结构的钢，其含有（重量％）0.10-0.15％C，0.80-1.20％Mn，至多0.030 ％P，最高0.004％S，1.10-1.30％Si，0.0-0.05％Al，至多0.0060％N，0.30-0.60％Cr，0.080-0.120％Ti，0.040-0.060％Nb，0.150-0.250％Mo 剩余的铁和不可避免的杂质，铸造成厚度为1-4mm的铸造带材。 在850〜1000℃的最终热轧温度下，将铸造带连续热轧成直径为0.5-3.2mm的热轧带材，变形度大于 20％。 将该热轧带卷绕在450-700℃的卷取温度下，得到最小拉伸强度Rm为880MPa，最小断裂伸长率A80为5％的热轧带材。

公开(公告)号：US20080257456A1

公开(公告)日：2008-10-23

申请号：US12110599

申请日：2008-04-28

申请人： Nicholas GUELTON ,  Michel Faral ,  Jean-Pierre Birat ,  Catherine Juckum

发明人： Nicholas GUELTON ,  Michel Faral ,  Jean-Pierre Birat ,  Catherine Juckum

IPC分类号： C22C38/20 ,  C21D9/52

CPC分类号： C22C38/04 ,  C21D8/0415 ,  C21D8/0426 ,  C21D8/0473 ,  C21D2211/001 ,  C21D2211/004 ,  C21D2211/005 ,  C22C1/02 ,  C22C38/16

摘要： The invention relates to a method for producing a siderurgical product made of carbon steel having a high copper content, according to which:—a liquid steel having the composition: 0.0005% 1%; 0.5 Cu 10%; 0 Mn 2%; 0 Si 5% 0 Ti 0.5%; 0 Nb 0.5%; 0 Ni 5%; 0 Al 2%, the remainder being iron and impurities, is produced;—said liquid steel is poured directly in the form of a thin strip having a thickness of no more than 10 mm;—the strip is subjected to forced cooling and/or is surrounded by a non-oxidizing atmosphere while having a temperature of more than 1000? C;—said thin strip is hot rolled at a reduction rate of at least 10%, the temperature at the end of the rolling process being such that all of the copper is still in a solid solution in the ferrite and/or austenite matrix;—and the strip is coiled. The invention also relates to a siderurgical product obtained according to said method.

摘要翻译： 本发明涉及一种具有高铜含量的由碳钢制成的铁皮制品的制造方法，其中： - 具有0.0005％1％组成的液态钢; 0.5 Cu 10％; 0 Mn 2％; 0 Si 5％0 Ti 0.5％; 0 Nb 0.5％; 0 Ni 5％; 0 Al 2％，其余为铁和杂质; - 液态钢直接以厚度不超过10毫米的薄条形式浇注; - 将钢带进行强制冷却和/或 被非氧化性气氛包围，同时温度大于1000？ C型薄带以至少10％的还原率热轧，轧制过程结束时的温度使得所有铜仍然在铁素体和/或奥氏体基体中的固溶体中; 并且条带盘绕。 本发明还涉及根据所述方法获得的外科手术产品。

公开(公告)号：US20060144553A1

公开(公告)日：2006-07-06

申请号：US11255604

申请日：2005-10-20

申请人： Walter Blejde ,  Rama Mahapatra ,  James Williams ,  Frank Barbaro ,  Philip Renwick ,  Harold Kaul ,  Andrew Phillips ,  Christopher Killmore ,  Lazar Strezov

发明人： Walter Blejde ,  Rama Mahapatra ,  James Williams ,  Frank Barbaro ,  Philip Renwick ,  Harold Kaul ,  Andrew Phillips ,  Christopher Killmore ,  Lazar Strezov

IPC分类号： B22D11/06

CPC分类号： B22D11/001 ,  B22D11/0622 ,  B22D11/117 ,  C21D8/0415 ,  C21D2211/004 ,  C22C38/02 ,  C22C38/04 ,  Y10T428/12993

摘要： A steel product with a high austenite grain coarsening temperature having less than 0.4% carbon, less than 0.06% aluminium, less than 0.01% titanium, less than 0.01% niobium, and less than 0.02% vanadium by weight, and having fine oxide particles containing silicon and iron distributed through the steel microstructure having an average particle size less than 50 nanometers and may be between 5 and 30 nanometers. The steel product may have fine oxide particles distributed through the microstructure capable of restricting ferrite recrystallisation for strain levels up to at least 10.0%, for temperatures up to 750 ° C. with holding times up to 20 minutes. The steel product may be made by continuous casting of steel strip introduced between the casting rolls to form a casting pool of molten carbon steel having a total oxygen content of at least 70 ppm usually less than 250 ppm, and a free oxygen content 20 and 60 ppm, counter rotating the casting rolls.

摘要翻译： 具有低奥氏体晶粒粗化温度的钢产品，具有小于0.4％的碳，小于0.06％的铝，小于0.01％的钛，小于0.01％的铌和小于0.02％的钒，并且具有含有 硅和铁通过平均粒度小于50纳米的钢微结构分布，并且可以在5和30纳米之间。 钢制品可以具有通过微结构分布的细小氧化物颗粒，其能够限制铁素体再结晶，对于高达750℃的温度，至多达到10.0％的应变水平，保持时间长达20分钟。 钢产品可以通过在铸辊之间引入的钢带的连续铸造来制造，以形成总氧含量通常低于250ppm，游离氧含量20和60的熔融碳钢的铸造池 ppm，反转铸辊。

公开(公告)号：US20050028898A1

公开(公告)日：2005-02-10

申请号：US10501456

申请日：2003-01-13

申请人： Nicolas Guelton ,  Michel Faral ,  Jean-Pierre Birat ,  Catherine Juckum

发明人： Nicolas Guelton ,  Michel Faral ,  Jean-Pierre Birat ,  Catherine Juckum

IPC分类号： B21B1/46 ,  B21B3/00 ,  B22D11/00 ,  B22D11/06 ,  B22D11/12 ,  B22D11/22 ,  C21D8/00 ,  C21D8/04 ,  C21D9/46 ,  C22C38/00 ,  C22C38/04 ,  C22C38/16

CPC分类号： C22C38/04 ,  C21D8/0415 ,  C21D8/0426 ,  C21D8/0473 ,  C21D2211/001 ,  C21D2211/004 ,  C21D2211/005 ,  C22C1/02 ,  C22C38/16

摘要： The invention relates to a method for producing a siderurgical product made of carbon steel having a high copper content, according to which:—a liquid steel having the composition: 0.0005%≦1%; O.5≦Cu≦10%; 0≦Mn≦2%; 0≦Si≦5% 0≦Ti≦0.5%; 0≦Nb≦0.5%; 0≦Ni≦5%; 0≦Al≦2%, the remainder being iron and impurities, is produced;—said liquid steel is poured directly in the form of a thin strip having a thickness of no more than 10 mm;—the strip is subjected to forced cooling and/or is surrounded by a non-oxidizing atmosphere while having a temperature of more than 1000? C.;—said thin strip is hot rolled at a reduction rate of at least 10%, the temperature at the end of the rolling process being such that all of the copper is still in a solid solution in the ferrite and/or austenite matrix;—and the strip is coiled. The invention also relates to a siderurgical product obtained according to said method.

摘要翻译： 本发明涉及一种生产铜含量高的碳钢制铁皮制品的方法，其特征在于，具有：0.0005％<= 1％的组成的液态钢; O.5 <= Cu <= 10％; 0 <= Mn <= 2％; 0 <= Si <= 5％0 <= Ti <= 0.5％; 0 <= Nb <= 0.5％; 0 <= Ni <= 5％; 0 <= Al <= 2％，其余为铁和杂质; - 液态钢直接以厚度不超过10毫米的薄条形式倾倒; - 钢带受到强制 冷却和/或被非氧化性气氛包围，同时温度大于1000？ 所述薄带以至少10％的压下率热轧，轧制过程结束时的温度使得所有的铜仍然在铁素体和/或奥氏体基体中的固溶体中 ; - 条带盘绕。 本发明还涉及根据所述方法获得的外科手术产品。

公开(公告)号：US06588494B1

公开(公告)日：2003-07-08

申请号：US09914430

申请日：2001-12-10

申请人： Frédéric Mazurier ,  Philippe Paradis

发明人： Frédéric Mazurier ,  Philippe Paradis

IPC分类号： B22D1106

CPC分类号： B22D11/0622 ,  C21D8/0205 ,  C21D8/0215 ,  C21D8/0405 ,  C21D8/0415 ,  C22C38/18 ,  C22C38/28

摘要： The invention relates to a process for the casting of thin strip having a thickness of less than 10 mm, made of ferritic stainless steel, directly from liquid metal between two rotating cooled rolls having parallel horizontal axes, characterized in that: the said ferritic stainless steel contains (in percentages by weight) from 11 to 18% chromium, less than 1% manganese, less than 1% silicon and less than 2.5% molybdenum; the said ferritic stainless steel has carbon and nitrogen contents, the sum of the contents not exceeding 0.05%; the said ferritic stainless steel contains at least one of the stabilizing elements titanium, niobium, zirconium and aluminium and the sum of their contents is between 0.05 and 1%; the other elements present are iron and the usual impurities resulting from the smelting. The subject of the invention is also thin strip capable of being obtained by the above process.

摘要翻译： 本发明涉及一种用于在具有平行水平轴的两个旋转冷却辊之间直接从液态金属铸造厚度小于10mm的由铁素体不锈钢制成的薄带材的方法，其特征在于：所述铁素体不锈钢 含有11至18％的铬，少于1％的锰，少于1％的硅和少于2.5％的钼的重量百分比;所述铁素体不锈钢具有碳氮含量，其含量不超过 0.05％;所述铁素体不锈钢含有稳定化元素钛，铌，锆和铝中的至少一种，其含量之和为0.05至1％;其它元素为铁和由熔炼产生的通常杂质 本发明的主题也是能够通过上述方法获得的薄带。

公开(公告)号：US20170101694A1

公开(公告)日：2017-04-13

申请号：US15374827

申请日：2016-12-09

申请人： ArcelorMittal France

发明人： Astrid Perlade ,  Olivier Bouaziz ,  Xavier Garat ,  Josée Drillet ,  Jean-Louis IRIARTE

IPC分类号： C21D9/46 ,  C22C38/50 ,  C22C38/48 ,  C22C38/00 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C21D8/02 ,  C22C38/44

CPC分类号： C21D9/46 ,  C21D6/005 ,  C21D8/021 ,  C21D8/0215 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0247 ,  C21D8/041 ,  C21D8/0415 ,  C21D8/0426 ,  C21D8/0436 ,  C21D2211/005 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50

摘要： A cold-rolled and annealed ferritic steel sheet is provided. The steel has a composition comprising, expressed by weight: 0.001≦C≦0.15%; Mn≦1%; Si≦1.5%; 7.5%≦AI≦10%; 0.020%≦Ti≦0.5%; S≦0.050%; and P≦0.1%. A balance of the composition includes iron and inevitable impurities resulting from the smelting. The structure includes kappa (κ) precipitates and equiaxed ferrite, an average grain size dα of the equiaxed ferrite is less than 50 microns, and a linear fraction f of intergranular κ precipitates is less than 30%. The linear fraction f is defined by f = Σ ( A )  di Σ ( A )  Li . Σ(A)di denotes the total length of grain boundaries containing κ precipitates relative to an area (A) and Σ(A)Li denotes the total length of the grain boundaries relative to the area (A). A content of carbon in solid solution is less than 0.005% by weight, and the cold-rolled and annealed ferritic steel sheet has a thickness between 0.6 mm and 1.5 mm. A skin part or structural part for the automotive field is also provided.

公开(公告)号：US20150191807A1

公开(公告)日：2015-07-09

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 ,  C21D9/52 ,  C21D6/00 ,  C22C38/32 ,  B22D11/00 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D8/02 ,  C22C38/28

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.

摘要翻译： 一种拉伸强度为760〜940MPa的热轧钢带的制造方法以及由此制造的钢，适用于通过加工成形，弯曲或拉伸凸缘等加工而制造零件。

公开(公告)号：US20140363696A1

公开(公告)日：2014-12-11

申请号：US14369269

申请日：2012-12-14

申请人： JFE Steel Corporation

发明人： Yoshimasa Funakawa ,  Tetsuo Yamamoto ,  Hiroshi Uchomae ,  Hiroshi Nakano ,  Taro Kizu

IPC分类号： C22C38/60 ,  C22C38/28 ,  C22C38/22 ,  C22C38/16 ,  C22C38/14 ,  C22C38/00 ,  C22C38/10 ,  C22C38/08 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C21D8/02 ,  C22C38/12

CPC分类号： C21D9/46 ,  C21D8/0226 ,  C21D8/0247 ,  C21D8/0263 ,  C21D8/0415 ,  C21D8/0426 ,  C21D8/0463 ,  C21D2211/004 ,  C21D2211/005 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/10 ,  C22C38/105 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/22 ,  C22C38/28 ,  C22C38/60 ,  Y10T428/12799 ,  Y10T428/12972

摘要： A high-strength hot rolled steel sheets with excellent stretch flangeability has small variations in mechanical properties in individual coils. Variations in strength from place to place in a coil are decreased by minimally reducing the Si and Mn contents to suppress the occurrence of problems such as segregation. Further, the microstructure of the steel sheets is configured such that a ferrite phase represents an area ratio of not less than 95%, the ferrite crystal grains have an average grain size of not less than 1 μm, and the ferrite crystal grains contain TiC with an average particle size of not more than 7 nm dispersed in the crystal grains.

摘要翻译： 具有优异的拉伸凸缘性的高强度热轧钢板在各个线圈中的机械性能的变化小。 通过最小限度地降低Si和Mn含量来降低线圈中的位置到位置的强度的变化，以抑制诸如偏析的问题的发生。 此外，钢板的微细结构使得铁素体相的面积比不小于95％，铁素体晶粒的平均晶粒尺寸不小于1μm，铁素体晶粒含有TiC与 分散在晶粒中的不超过7nm的平均粒度。

公开(公告)号：US20090214377A1

公开(公告)日：2009-08-27

申请号：US12083822

申请日：2006-10-10

申请人： Wolfgang Hennig ,  August Sprock ,  Joachim Ohlert ,  Christian Bilgen

发明人： Wolfgang Hennig ,  August Sprock ,  Joachim Ohlert ,  Christian Bilgen

IPC分类号： C22C38/04 ,  C21D8/02 ,  C22C38/00

CPC分类号： C21D8/0415 ,  C21D1/20 ,  C21D8/0215 ,  C21D8/0226 ,  C21D8/0263 ,  C21D8/0426 ,  C21D8/0463 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/005

摘要： For the production of hot strip referred to as TRIP steel (transformation induced plasticity), with a multiphase structure and with outstandingly good deformation properties along with high strengths, from the hot-rolled state, the invention proposes a method which is carried out with a predetermined chemical composition of the steel grade used within the limits 0.12-0.25% C; 0.05-1.8% Si; 1.0-2.0% Mn; the remainder Fe and customary accompanying elements and with a combined rolling and cooling strategy in such a way that a structure comprising 40-70% ferrite, 15-45% bainite and 5-20% residual austenite is obtained, wherein the finish rolling of the hot strip (7) is performed to set a very fine austenite grain (d

摘要翻译： 为了生产被称为TRIP钢（转变诱导塑性）的热带，具有多相结构，并且具有优异的变形特性以及高强度，从热轧状态，本发明提出了一种用 预定化学成分的钢级使用范围为0.12-0.25％C; 0.05-1.8％Si; 1.0-2.0％Mn; 剩余的Fe和常规的伴随元素以及组合的轧制和冷却策略，使得获得包含40-70％铁素体，15-45％贝氏体和5-20％残余奥氏体的结构，其中， 在最终成型操作（6'）中，在亚稳态奥氏体区域中刚好高于Ar3的温度在770和830℃之间的温度下，进行热轧带（7）以设定极细的奥氏体晶粒（d <8μm），以及 在热轧带（7）的最后轧制机架（6'）之后，在贝氏体形成范围内的条带温度为320-480℃，进行受控两段冷却（10,11,12） 其保持时间为约650-730℃，其开始由冷却曲线进入铁氧体区域确定，其持续时间由奥氏体转变为至少40％的铁素体来确定。