公开(公告)号：US09580766B2

公开(公告)日：2017-02-28

申请号：US12600085

申请日：2008-04-29

申请人： Astrid Perlade ,  Xavier Garat ,  Jean-Louis Uriarte ,  Olivier Bouaziz ,  Josee Drillet

发明人： Astrid Perlade ,  Xavier Garat ,  Jean-Louis Uriarte ,  Olivier Bouaziz ,  Josee Drillet

IPC分类号： C21D8/02 ,  C21D8/04 ,  C22C38/06 ,  C22C38/14 ,  C21D6/00

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： The invention relates to a hot-rolled ferritic steel sheet, the composition of the steel of which comprises, the contents being expressed by weight: 0.001≦C≦0.15%, Mn≦1%, Si≦1.5%, 6%≦Al≦10%, 0.020%≦Ti≦0.5%, S≦0.050%, P≦0.1%, and, optionally, one or more elements chosen from: Cr≦1%, Mo≦1%, Ni≦1%, Nb≦0.1%, V≦0.2%, B≦0.010%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting, the average ferrite grain size dIV measured on a surface perpendicular to the transverse direction with respect to the rolling being less than 100 microns.

摘要翻译： 本发明涉及一种热轧的铁素体钢板，其组成为：其含量以0.001≤C≤0.15％，Mn≤1％，Si≤1.5％，6％≤Al≤ 10％，0.020％≤Ti≤0.5％，S≤0.050％，P≤0.1％，以及任选的一种或多种选自Cr≤1％，Mo≤1％，Ni≤1％，Nb≤0.1的元素 ％，V≤0.2％，B≤0.010％，由冶炼产生的铁和不可避免的杂质组成的组成的平衡，在与横向垂直的表面上测量的相对于轧制的平均铁素体晶粒尺寸dIV较小 超过100微米。

公开(公告)号：US08257647B2

公开(公告)日：2012-09-04

申请号：US12161680

申请日：2006-01-26

申请人： Giovanni Arvedi

发明人： Giovanni Arvedi

IPC分类号： C22C38/42

CPC分类号： C22C38/02 ,  C21D1/42 ,  C21D8/0205 ,  C21D8/0215 ,  C21D8/0405 ,  C21D8/0415 ,  C21D2201/03 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  Y02P10/253

摘要： A micro-alloyed low carbon steel strip is obtained by hot rolling at temperature of the pre-strip never lower than 900° C. and shows such metallurgical and geometrical features, as well as relating to planarity and deformability, to render the same suitable to obtain structures of low weight and good mechanical resistance, thus being able for use in replacement of cold rolled strips for the production of finished stamped or cut pieces. Said steel strip, having thickness>0.7 mm, has a ratio yield load/breaking load>70%, a fine grain structure better than grade 10 of ASTM E 112 standard in a percentage higher than 90% of the whole structure and a ratio between breaking limit under strain and yield point σ/RPo.2>90%.

摘要翻译： 通过在不低于900℃的预条件的温度下进行热轧获得微合金化的低碳钢带，并显示出这样的冶金和几何特征，以及与平面度和变形性有关，使其适合于 获得低重量和良好的机械阻力的结构，因此能够用于替代用于生产成品冲压或切割件的冷轧带材。 所述厚度> 0.7mm的钢带的比率屈服载荷/断裂载荷> 70％，细颗粒结构优于ASTM E 112标准的等级10，其百分比高于整个结构的90％，并且 应变和屈服点的断裂极限值/RPo.2> 90％。

公开(公告)号：US20100252149A1

公开(公告)日：2010-10-07

申请号：US12161685

申请日：2006-01-26

申请人： Giovanni Arvedi

发明人： Giovanni Arvedi

IPC分类号： C21D8/02 ,  C22C38/44

CPC分类号： C22C38/04 ,  C21D8/0205 ,  C21D8/0405 ,  C21D8/0415 ,  C21D2201/03 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/06

摘要： A hot rolled dual phase steel strip with Thickness® 1.0 mm can be used for producing cold pressed and cut pieces, in particular for the car manufacturing industry, by replacing with the same mechanical performances the cold rolled dual phase steel strip usually employed for these purposes. Said hot rolled strip in peritectic steel has a carbon percentage between 0.06 and 0.15% with chemical analysis without any important addition of chromium and phosphorous, with a constant geometrical profile on the whole length and tolerances, particularly with respect to the thickness, which are typical of a cold rolled strip with parallelism

摘要翻译： 可以使用厚度为1.0mm的热轧双相钢带，用于生产冷压和切割件，特别是用于汽车制造业，通过用相同的机械性能代替通常用于这些目的的冷轧双相钢带 。 所述包晶钢中的热轧钢带具有0.06-0.15％的碳含量，化学分析没有任何重要的铬和磷添加，在整个长度和公差，特别是厚度方面具有恒定的几何形状，这是典型的 具有平行度<0.05mm的冷轧带材，条带中心和侧边缘之间的冠部<0.07mm，同时具有比ASTM 112标准的10级更好的微晶细度的结构，其比例高于整个结构的80％ 。

公开(公告)号：US20100043513A1

公开(公告)日：2010-02-25

申请号：US12447621

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： B21B47/00

CPC分类号： C21D8/0415 ,  B22D11/001 ,  B22D11/06 ,  C21D8/0426 ,  C21D8/0436 ,  C21D8/0473 ,  C21D2211/008 ,  C22C38/06 ,  C22C38/28 ,  C22C38/38

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. %) 0.08-0.12% C, 1.70-2.00% Mn, up to 0.030% P, up to 0.004% S, up to 0.20% Si, 0.01-0.06% Al, up to 0.0060% N, 0.20-0.50% Cr, 0.010-0.050% Ti, 0.0010-0.0045% B, 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 800 to 1100° .C, the deformation degree being greater than 20%. The hot-rolled strip is coiled at a coiling temperature ranging from 250 to 570° C., so as to obtain a hot-rolled strip, which has a minimum tensile strength Rm of 800 MPa at a minimum breaking elongation A80 of 5%.

摘要翻译： 允许以较小的努力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％）0.08-0.12％C，1.70-2.00％Mn，至多0.030 ％P，至多0.004％S，至多0.20％Si，0.01-0.06％Al，至多0.0060％N，0.20-0.50％Cr，0.010-0.050％Ti，0.0010-0.0045％B，余量为铁和不可避免的杂质 ，铸造成厚度为1-4mm的铸钢带。 在800〜1100℃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％。 将热轧带材卷绕在250〜570℃的卷取温度下，得到最小拉伸强度Rm为800MPa，最小断裂伸长率A80为5％的热轧带材。

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：US09765415B2

公开(公告)日：2017-09-19

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 Uriarte

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

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：US20100300585A1

公开(公告)日：2010-12-02

申请号：US12600085

申请日：2008-04-29

申请人： Astrid Perlade ,  Xavier Garat ,  Jean-Louis Uriarte ,  Olivier Bouaziz ,  Josee Drillet

发明人： Astrid Perlade ,  Xavier Garat ,  Jean-Louis Uriarte ,  Olivier Bouaziz ,  Josee Drillet

IPC分类号： C21D8/02 ,  C22C38/06 ,  C22C38/14 ,  C21D6/02

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： The invention relates to a hot-rolled ferritic steel sheet, the composition of the steel of which comprises, the contents being expressed by weight: 0.001≦C≦0.15%, Mn≦1%, Si≦1.5%, 6%≦Al≦10%, 0.020%≦Ti≦0.5%, S≦0.050%, P≦0.1%, and, optionally, one or more elements chosen from: Cr≦1%, Mo≦1%, Ni≦1%, Nb≦0.1%, V≦0.2%, B≦0.010%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting, the average ferrite grain size dIV measured on a surface perpendicular to the transverse direction with respect to the rolling being less than 100 microns.

摘要翻译： 本发明涉及一种热轧的铁素体钢板，其组成包括：其含量按重量计：0.001＆nlE; C＆lt; ll; 0.15％，Mn＆nlE; 1％，Si＆NlE; 1.5％，6％＆nlE; 1％，1％，1％，1％，1％，1％，1％，1％，1％，1％，10％，0.020％ Nb＆nlE; 0.1％，V＆NlE; 0.2％，B＆NlE; 0.010％，由冶炼产生的铁和不可避免的杂质组成的余量，在垂直于横向的表面上测量的平均铁素体晶粒尺寸dIV相对于 轧制小于100微米。

公开(公告)号：US20100096047A1

公开(公告)日：2010-04-22

申请号：US12447623

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

CPC分类号： C21D8/0415 ,  B22D11/001 ,  B22D11/06 ,  C21D8/0426 ,  C21D8/0473 ,  C21D2211/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/26

摘要： A method, which allows extremely high-tensile flat steel products to be manufactured with less effort includes a steel that forms a martensitic microstructure and contains (in wt. %) C: 0.15-0.19%, Mn: 0.80-1.20%, P:

摘要翻译： 能够以较少的努力制造极高强度的扁钢制品的方法包括形成马氏体组织的钢，其含有（以重量％计）C：0.15-0.19％，Mn：0.80-1.20％，P： <0.030％，S：<0.004％，Si：0.60-1.00％，Al：<0.05％，N：<0.0060％，Cr：0.30-0.60％，Nb：0.040-0.070％，余量为铁和不可避免的杂质 铸造成厚度为1-4mm的铸造带材。 在900〜1050℃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％。 将热轧带卷取至多350℃的卷取温度，得到最小拉伸强度Rm为1400MPa，最小断裂伸长率A80为5％的热轧带材。

公开(公告)号：US07425240B2

公开(公告)日：2008-09-16

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： C21D8/02

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; 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？ C。; 所述薄带以至少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; - 和 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：US09657382B2

公开(公告)日：2017-05-23

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： C22C38/14 ,  C22C38/28 ,  C22C38/50 ,  C22C38/02 ,  C22C38/04 ,  C22C38/60 ,  C22C38/00 ,  C22C38/06 ,  C21D8/02 ,  C21D8/04 ,  C22C38/08 ,  C22C38/10 ,  C22C38/12 ,  C22C38/16 ,  C22C38/22 ,  C21D9/46

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.