公开(公告)号：US09745639B2

公开(公告)日：2017-08-29

申请号：US13489005

申请日：2012-06-05

申请人： Sae Mizuta ,  Yuichi Futamura ,  Yukihiro Utsumi

发明人： Sae Mizuta ,  Yuichi Futamura ,  Yukihiro Utsumi

IPC分类号： C22C38/04 ,  C22C38/02 ,  C21D1/20 ,  C21D9/46 ,  C22C38/00 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C21D8/04

CPC分类号： C21D1/20 ,  C21D8/0447 ,  C21D8/0463 ,  C21D8/0473 ,  C21D9/46 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18

摘要： The invention relates to a steel sheet having a tensile strength of 1180 MPa or more, which excels in workability and cold brittleness resistance. The high-strength steel sheet contains 0.10% to 0.30% of C, 1.40% to 3.0% of Si, 0.5% to 3.0% of Mn, 0.1% or less of P, 0.05% or less of S, 0.005% to 0.20% of Al, 0.01% or less of N, 0.01% or less of O, as well as Fe and inevitable impurities. The steel sheet has: (i) a ferrite volume fraction of 5% to 35% and a bainitic ferrite and/or tempered martensite volume fraction of 60% or more; (ii) a MA constituent volume fraction of 6% or less (excluding 0%); and (iii) a retained austenite volume fraction of 5% or more.

公开(公告)号：US09631266B2

公开(公告)日：2017-04-25

申请号：US14382450

申请日：2013-02-28

申请人： KOBE STEEL, LTD.

发明人： Yuichi Futamura ,  Michiharu Nakaya

IPC分类号： C22C38/38 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C21D9/46 ,  C22C38/00 ,  C21D8/04 ,  C21D1/20 ,  C21D1/22 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C23C2/02 ,  C25D5/36

CPC分类号： C22C38/38 ,  C21D1/20 ,  C21D1/22 ,  C21D8/0447 ,  C21D9/46 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C23C2/02 ,  C25D5/36

摘要： Provided is a method that enables manufacture, with good productivity, of a high-strength cold-rolled steel with improved elongation (EL), stretch-flangeability (λ), bendability (R), and balance of these properties (TS×EL×λ/1000), outstanding composite workability as evaluated by Erichsen test, and a tensile strength of at least 980 MPa. A steel material satisfying a prescribed constituent composition is held and soaked for at least fifty seconds at a temperature at or above the Ac3 point, after which the steel material is cooled at an average cooling rate of at least 15° C./sec to a discretionary temperature (T) that satisfies expression (1) below, held for 5-180 seconds in a temperature range that satisfies expression (1) below, then heated to a temperature region that satisfies expression (2) below, held for at least 50 seconds in this temperature region, and then cooled. 300° C.≦T1(° C.)

公开(公告)号：US20160348207A1

公开(公告)日：2016-12-01

申请号：US15101384

申请日：2013-12-24

申请人： POSCO

发明人： Kyong-Su PARK ,  Jae-Hoon JANG

IPC分类号： C21D9/46 ,  C21D1/18 ,  C22C38/00 ,  C21D8/02 ,  C22C38/04 ,  C22C38/02

CPC分类号： C21D9/46 ,  C21D1/18 ,  C21D8/02 ,  C21D8/021 ,  C21D8/0236 ,  C21D8/0436 ,  C21D8/0447 ,  C21D8/0473 ,  C21D2201/00 ,  C21D2211/001 ,  C21D2211/005 ,  C21D2211/008 ,  C21D2211/009 ,  C22C38/00 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04

摘要： Disclosed are a quenched steel sheet and a method for manufacturing the same. The quenched steel sheet according to an aspect of the present invention contains, in terms of wt %, C: 0.05˜0.25%, Si: 0.5% or less (excluding 0), Mn: 0.1˜2.0%, P: 0.05% or less, S: 0.03% or less, the remainder Fe, and other unavoidable impurities, wherein a refined structure of the steel sheet comprises 90 volume % or more of martensite with a first hardness and martensite with a second hardness.

摘要翻译： 公开了淬火钢板及其制造方法。 根据本发明的一个方面的淬火钢板以重量％计含有C：0.05〜0.25％，Si：0.5％以下（不包括0），Mn：0.1〜2.0％，P：0.05％ S：0.03％以下，余量为Fe，其他不可避免的杂质，其中，钢板的精制结构体含有第一硬度的90体积％以上的马氏体和具有第二硬度的马氏体。

公开(公告)号：US09409221B2

公开(公告)日：2016-08-09

申请号：US13638952

申请日：2011-03-28

申请人： Masanori Kobayashi

发明人： Masanori Kobayashi

IPC分类号： B21D22/02 ,  B21D22/20 ,  B21D37/16 ,  C21D1/18 ,  C21D1/673 ,  C21D7/13 ,  C21D8/04 ,  C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18

CPC分类号： B21D22/02 ,  B21D22/208 ,  B21D37/16 ,  C21D1/18 ,  C21D1/673 ,  C21D7/13 ,  C21D8/0447 ,  C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18

摘要： A hardenable steel sheet is treated with press-forming by means of a die. The method is comprised of: heating the steel sheet to a temperature of an Ac3 point or higher; carrying out a primary press on the heated steel sheet so as to give a local strain to a limited part of the steel sheet; keeping the steel sheet in a state apart from the die shortly after the primary press; and carrying out a press on the steel sheet kept in the state and retain the steel sheet in close contact with the die.

摘要翻译： 可硬化钢板通过模具进行压制成型处理。 该方法包括：将钢板加热至Ac3点以上的温度; 在加热后的钢板上进行初次压制，对钢板的有限部分施加局部应变; 在初次压机之后不久将钢板保持在不同于模具的状态; 并在保持在该状态的钢板上进行压制，并且保持钢板与模具紧密接触。

公开(公告)号：US20160130680A1

公开(公告)日：2016-05-12

申请号：US14891889

申请日：2014-07-01

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Kaoru KAWASAKI ,  Masaharu KAMEDA ,  Kohichi SANO ,  Riki OKAMOTO

IPC分类号： C21D9/46 ,  C22C38/32 ,  C22C38/28 ,  C22C38/26 ,  C22C38/22 ,  C22C38/16 ,  C22C38/14 ,  C22C38/12 ,  C22C38/08 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C38/44 ,  C22C38/42 ,  C22C38/10 ,  C21D6/00 ,  C21D8/02 ,  B32B15/01 ,  C23C2/06

CPC分类号： C21D9/46 ,  B32B15/013 ,  C21D6/004 ,  C21D6/005 ,  C21D6/007 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0247 ,  C21D8/0426 ,  C21D8/0436 ,  C21D8/0447 ,  C21D8/0473 ,  C21D2201/05 ,  C21D2211/001 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/42 ,  C22C38/44 ,  C22C38/54 ,  C23C2/06 ,  C23C2/28 ,  C23C2/40

摘要： A cold-rolled steel sheet includes a predetermined chemical composition, and includes a structure expressed by: an area fraction of ferrite: 95% or more; an area fraction of retained austenite and an area fraction of martensite: 1% to 3% in total; a product of the area fraction of retained austenite and a carbon concentration in retained austenite: 1 or more; a value of I(111)/{I(100)+I(110)} at a region where a depth from a surface is ¼ of a thickness of the cold-rolled steel sheet when intensity of a (hkl) plane is expressed by I(hkl): 2 or less.

摘要翻译： 冷轧钢板包括预定的化学组成，并且包括以下结构：铁素体的面积分数为95％以上; 残余奥氏体的面积分数和马氏体的面积率分别为1％〜3％ 残余奥氏体的面积率和残留奥氏体中的碳浓度的乘积为1以上; （hkl）面的强度表示时，表面深度为冷轧钢板的厚度的1/4的区域的I（111）/ {I（100）+ I（110）}的值 由I（hkl）：2以下。

公开(公告)号：US09315877B2

公开(公告)日：2016-04-19

申请号：US13991199

申请日：2011-12-05

申请人： Keiichiro Torisu ,  Seiichi Tanaka ,  Hirokazu Yokoya ,  Jyunichi Matsunaga

发明人： Keiichiro Torisu ,  Seiichi Tanaka ,  Hirokazu Yokoya ,  Jyunichi Matsunaga

IPC分类号： C21D8/02 ,  C21D8/04 ,  C21D9/46 ,  C21D9/48 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  B65D83/38

CPC分类号： C21D8/0263 ,  B65D83/38 ,  C21D8/0226 ,  C21D8/04 ,  C21D8/0405 ,  C21D8/0447 ,  C21D9/46 ,  C21D9/48 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

摘要： A steel sheet for bottom covers of aerosol cans includes, as chemical composition, C: 0.025 to 0.065 mass %, Mn: 0.10 to 0.28 mass %, P: 0.005 to 0.03 mass %, Al: 0.01 to 0.04 mass %, N: 0.0075 to 0.013 mass %, Si: limited to 0.05 mass % or less, S: limited to 0.009 mass % or less, and balance consisting of Fe and unavoidable impurities, wherein yield point YP in rolling direction after aging treatment is in range of 460 to 540 MPa, total elongation in the rolling direction after the aging treatment is 15% or more, yield point elongation ELYP in the rolling direction after the aging treatment is 6% or less, and sheet thickness t in unit of mm, the yield point YP in unit of MPa in the rolling direction after the aging treatment, and the yield point elongation ELYP in unit of % in the rolling direction after the aging treatment satisfy 130≦t×YP×(1−ELYP/100).

摘要翻译： 气溶胶罐底盖用钢板，C：0.025〜0.065质量％，Mn：0.10〜0.28质量％，P：0.005〜0.03质量％，Al：0.01〜0.04质量％，N：0.0075 至0.013质量％，Si：限于0.05质量％以下，S：限于0.009质量％以下，余量由Fe和不可避免的杂质组成，其中时效处理后轧制方向的屈服点YP在460〜 540MPa，时效处理后的轧制方向的总伸长率为15％以上，时效处理后的轧制方向的屈服点伸长率ELYP为6％以下，板厚t为单位mm，屈服点YP 时效处理后的轧制方向的MPa为单位，时效处理后的轧制方向的％的屈服点伸长率ELYP为130＆lt; nlE; t×YP×（1-ELYP / 100）。

公开(公告)号：US20150376729A1

公开(公告)日：2015-12-31

申请号：US14765623

申请日：2014-02-27

申请人： NISSHIN STEEL CO., LTD.

发明人： Hiroyasu MATSUBAYASHI ,  Sadayuki NAKAMURA ,  Ryoji HIROTA

IPC分类号： C21D8/02 ,  C22C38/54 ,  C22C38/50 ,  C22C38/00 ,  C22C38/46 ,  C22C38/44 ,  C22C38/40 ,  C22C38/02 ,  C22C38/58 ,  C22C38/48

CPC分类号： C21D8/0205 ,  C21D6/004 ,  C21D6/005 ,  C21D6/02 ,  C21D8/0236 ,  C21D8/0247 ,  C21D8/0436 ,  C21D8/0447 ,  C21D9/46 ,  C21D2211/001 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/34 ,  C22C38/40 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58

摘要： [Problem] To provide a raw material steel sheet for providing a high strength nonmagnetic austenitic stainless steel material that has a high elastic limit stress and excellent toughness.[Solution to Problem] An austenitic stainless steel sheet containing 0.12% or less of C, from 0.30 to 3.00% of Si, from 2.0 to 9.0% of Mn, from 7.0 to 15.0% of Ni, from 11.0 to 20.0% of Cr, and 0.30% or less of N, and further containing at least one kind of 3.0% or less of Mo, 1.0% or less of V, 1.0% or less of Nb, 1.0% or less of Ti, and 0.010% or less of B, all in terms of percentage by mass, with the balance of Fe and unavoidable impurities, having a component composition having a Ni equivalent of 19.0 or more, having a value of d−1/2 of 0.40 or more, wherein d (μm) represents an average austenitic crystal grain diameter, and having a property that provides a magnetic permeability of 1.0100 or less after subjected to cold rolling with an equivalent strain of 0.50 or more.

摘要翻译： [问题]提供一种具有高弹性极限应力和优异韧性的高强度非磁性奥氏体不锈钢材料用原料钢板。 [问题的解决方案]含有0.12％以下的C，0.30〜3.00％的Si，2.0〜9.0％的Mn，7.0〜15.0％的Ni，11.0〜20.0％的Cr的奥氏体系不锈钢板， 和0.30％以下的N，进一步含有Mo的3.0％以下，V：1.0％以下，Nb：1.0％以下，Ti：1.0％以下，和0.010％以下 B的全部以质量百分比计，余量为Fe和不可避免的杂质，其组成成分的Ni当量为19.0以上，d-1/2的值为0.40以上，其中d（μm ）表示平均奥氏体晶粒直径，并且具有以0.50以上的等效应变进行冷轧后的导磁率为1.0100以下的性质。

公开(公告)号：US09127329B2

公开(公告)日：2015-09-08

申请号：US13818041

申请日：2011-07-19

申请人： Willem Cornelis Verloop ,  Marc Jacco van Genderen ,  Ronald Theodoor van Tol ,  Guido Cornelis Hensen ,  Jenny Loiseaux

发明人： Willem Cornelis Verloop ,  Marc Jacco van Genderen ,  Ronald Theodoor van Tol ,  Guido Cornelis Hensen ,  Jenny Loiseaux

IPC分类号： C21D8/02 ,  C21D9/46 ,  C23C2/06 ,  C23C2/40 ,  B32B15/01 ,  C21D1/673 ,  C21D8/04 ,  C21D9/48 ,  C22C38/02 ,  C22C38/04 ,  C23C10/28 ,  C23C10/60

CPC分类号： C21D8/0247 ,  B32B15/013 ,  C21D1/673 ,  C21D8/0205 ,  C21D8/0447 ,  C21D9/46 ,  C21D9/48 ,  C22C18/00 ,  C22C18/04 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C23C10/28 ,  C23C10/60

摘要： A method for manufacturing a coated part having very high mechanical properties using hot forming techniques. The method includes: —providing an annealed steel strip or blank or pre-shaped part that was coated with a metal or metal alloy before the annealing —if a strip is provided, cutting a blank from the strip before or after the annealing —optionally forming a pre-shaped part from the blank —heating the blank or preshaped part to a temperature of 500° C. at an average heating rate of 16° C./s or more —further heating the blank or pre-shaped part to a temperature between 700 and 1000° C. —hot forming the blank or preshaped part into a hot formed part —hardening the hot formed part. A method for manufacturing a coated steel strip, blank or pre-shaped part, and a coated steel strip, blank or part and a hot formed part.

摘要翻译： 使用热成型技术制造具有非常高的机械性能的涂布部件的方法。 该方法包括：提供在退火之前涂覆有金属或金属合金的退火钢带或坯料或预成型部件 - 如果提供条带，则在退火之前或之后从条带切割坯料 - 可选择地形成 坯料的预成型部分将坯料或预成型部分加热至温度为500℃，平均加热速度为16℃/ s以上，进一步将坯料或预成形部分加热至温度 在700和1000℃之间，将坯料或预成型部分形成热成型部件 - 硬化热成型部件。 涂覆钢带，坯料或预成型部件以及涂层钢带，坯料或部件和热成型部件的制造方法。

公开(公告)号：US09039846B2

公开(公告)日：2015-05-26

申请号：US10391529

申请日：2003-03-19

申请人： Mohamed Bouzekri

发明人： Mohamed Bouzekri

IPC分类号： C22C38/04 ,  C22C38/00 ,  C22C38/06 ,  C21D8/04 ,  C21D9/48

CPC分类号： C22C38/04 ,  C21D8/0421 ,  C21D8/0447 ,  C21D9/48 ,  C22C38/001 ,  C22C38/06 ,  Y10T428/24248

摘要： The invention concerns a cold-rolled aluminum killed steel sheet, which includes by weight between 0.003 and 0.130% of carbon, between 0.10 and 1% of manganese, between 0.010 and 0.100% of aluminum, between 0.0015 and 0.0140% nitrogen, the remainder being of iron and impurities resulting from the manufacturing, and which has a content of carbon in solid solution (Css) of at least 50 ppm, as well as a method of manufacturing packaging from said sheet.

摘要翻译： 本发明涉及一种冷轧铝镇静钢板，其重量为0.003至0.130％的碳，0.10至1％的锰，0.010至0.100％的铝，0.0015至0.0140％之间的氮，其余为 的由制造产生的铁和杂质，并且其具有至少50ppm的固溶体（Css）中的碳含量，以及从所述片材制造包装的方法。

公开(公告)号：US20150140358A1

公开(公告)日：2015-05-21

申请号：US14390802

申请日：2012-09-11

申请人： Takafumi Yokoyama ,  Shigeki Nomura

发明人： Takafumi Yokoyama ,  Shigeki Nomura

IPC分类号： C23C2/00 ,  C22C38/28 ,  C22C38/18 ,  C22C38/16 ,  C22C38/14 ,  B32B15/01 ,  C22C38/08 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D8/02 ,  C22C38/12

CPC分类号： C23C2/006 ,  B32B15/013 ,  C21D1/20 ,  C21D8/02 ,  C21D8/0263 ,  C21D8/0426 ,  C21D8/0447 ,  C21D9/46 ,  C21D9/48 ,  C21D2211/002 ,  C21D2211/003 ,  C21D2211/005 ,  C21D2211/009 ,  C22C18/04 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/28 ,  C23C2/02 ,  C23C2/06 ,  C23C2/28 ,  C23C2/40 ,  Y10T428/12799

摘要： In a high strength hot-dip galvannealed hot-rolled steel sheet that has an excellent hole expansibility suitable for a stretch flanging and preferably has a high yield ratio and a tensile strength of at least 650 MPa, a hot-rolled steel sheet used as a base material for plating has a chemical composition comprising: in mass %, C: from at least 0.01 and at most 0.20%; Si: at most 0.50%; Mn: from at least 0.01% to at most 1.30%; P: at most 0.05%; S: at most 0.01%; N: at most 0.01%; Al: at most 0.50%; and Ti: from at least 0.05% to at most 0.50%, and a steel structure consisting of a polygonal ferrite having at least 80 area % and the remainder containing one kind or two or more kinds selected from bainitic ferrite, bainite, pearlite, and cementite.

摘要翻译： 在适用于拉伸凸缘的孔膨胀性优异的高强度热浸合金化热镀锌热轧钢板中，优选具有高屈服比，拉伸强度为650MPa以上的热轧钢板， 电镀用基材的化学组成为：质量％，C：0.01以上0.20％以下。 Si：0.50％以下; Mn：至少0.01％至至多1.30％; P：0.05％以下; S：0.01％以下; N：0.01％以下; 铝：最多0.50％; 和Ti：至少0.05％至至多0.50％，以及由具有至少80面积％的多边形铁素体组成的钢结构体，剩余部分含有选自贝氏体铁素体，贝氏体，珠光体，和贝氏体的一种或两种以上 渗碳体