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1. 发明申请

US20110192504A1 Method for producing a galvanized steel sheet 审中-公开
标题翻译：镀锌钢板的制造方法
公开(公告)号：US20110192504A1
公开(公告)日：2011-08-11
申请号：US12927331
申请日：2010-11-12
申请人： Hideyuki Kimura , Yoshihiko Ono , Takeshi Fujita , Takayuki Futatsuka , Saiji Matsuoka
发明人： Hideyuki Kimura , Yoshihiko Ono , Takeshi Fujita , Takayuki Futatsuka , Saiji Matsuoka
IPC分类号： C21D8/02
CPC分类号： C21D9/46 , C21D8/0205 , C21D2211/005 , C22C38/001 , C22C38/02 , C22C38/06 , C22C38/38 , C23C2/02 , C23C2/28
摘要： A method for producing a galvanized steel sheet including (a) melting a steel having a steel composition comprising 0.005 to 0.04 mass % C, 1.5 mass % or lower Si, 1.0 to 2.0 mass % Mn, 0.10 mass % or lower P, 0.03 mass % or lower S, 0.01 to 0.1 mass % Al, less than 0.008 mass % N and 0.2 to 1.0 mass % Cr, wherein Mn (mass %)+1.29 Cr (mass %) is 2.1 to 2.8, and the balance being iron and unavoidable impurities, (b) hot rolling and cold rolling the steel from step (a) to provide a steel sheet, and (c) annealing the steel sheet from step (c) at an annealing temperature of at least the Ac1 point and not more than the Ac3 point, wherein the galvanized steel sheet has a structure which includes a ferrite phase and a martensite phase with a volume fraction being at least 3.0% and less than 10%, the average particle diameter of the ferrite is larger than 6 μm and not more than 15 μm, and 90% or more of the martensite phase exists in a ferrite grain boundary.
摘要翻译：一种镀锌钢板的制造方法，其特征在于，具有（a）将钢组成为含有0.005〜0.04质量％的C，1.5质量％以下的Si，1.0〜2.0质量％的Mn，0.10质量％以下的P，0.03质量％％以下S，0.01〜0.1质量％Al，小于0.008质量％N和0.2〜1.0质量％Cr，其中，Mn（质量％）+ 1.29Cr（质量％）为2.1〜2.8，余量为铁和不可避免的杂质，（b）对步骤（a）中的钢进行热轧和冷轧以提供钢板，（c）在至少Ac1点的退火温度下退火步骤（c）的钢板，而不是更多其中镀锌钢板具有铁素体相和马氏体相的结构，其体积分数为3.0％以上且小于10％，铁素体的平均粒径大于6μm，不大于15μm，在铁素体晶界中存在90％以上的马氏体相。

2. 发明申请

US20090139611A1 Galvanized Steel Sheet and Method for Producing the Same 审中-公开
标题翻译：镀锌钢板及其制造方法
公开(公告)号：US20090139611A1
公开(公告)日：2009-06-04
申请号：US12084173
申请日：2006-12-25
申请人： Hideyuki Kimura , Yoshihiko Ono , Takeshi Fujita , Takayuki Futatsuka , Saiji Matsuoka
发明人： Hideyuki Kimura , Yoshihiko Ono , Takeshi Fujita , Takayuki Futatsuka , Saiji Matsuoka
IPC分类号： C23C2/02 , C22C38/04 , C22C38/38 , B32B15/01
CPC分类号： C21D9/46 , C21D8/0205 , C21D2211/005 , C22C38/001 , C22C38/02 , C22C38/06 , C22C38/38 , C23C2/02 , C23C2/28
摘要： A galvanized steel sheet excellent in strength-ductility balance and bake-hardenability as well as a method for producing the same are provided. The chemical components thereof include C, Si, Mn, P, S, Al, N and Cr at content ratios of 0.005 to 0.04%, 1.5% or lower, 1.0 to 2.0%, 0.10% or lower, 0.03% or lower, 0.01 to 0.1%, less than 0.008% and 0.2 to 1.0%, respectively, with Mn (mass %)+1.29Cr (mass %) being in the range of 2.1 to 2.8, and further include iron and unavoidable impurities as the balance. The structure thereof consists of a ferrite phase and a martensite phase with a volume fraction being at least 3.0% and less than 10%, the average particle diameter of the ferrite is larger than 6 μm and not more than 15 μm, and 90% or more of the martensite phase exists in a ferrite grain boundary. In addition, in the production process of such a galvanized steel sheet, a steel sheet obtained in a cold rolling step is annealed at a temperature being at least the Ac1 point and not more than the Ac3 point.
摘要翻译：提供强度 - 延展性平衡和烘烤硬化性优异的镀锌钢板及其制造方法。其化学成分包括C：Si，Mn，P，S，Al，N和Cr，含量比例为0.005〜0.04％，1.5％以下，1.0〜2.0％，0.10％以下，0.03％以下，0.01 至0.1％，小于0.008％和0.2〜1.0％，Mn（质量％）+ 1.29Cr（质量％）在2.1〜2.8的范围内，还包含铁和不可避免的杂质作为平衡。其结构由铁素体相和体积分率为3.0％以上且小于10％的马氏体相组成，铁素体的平均粒径大于6μm，15μm以下且90μm以下，更多的马氏体相存在于铁素体晶界中。另外，在这样的镀锌钢板的制造工序中，在冷轧工序中得到的钢板在至少Ac1点且不大于Ac3点的温度下退火。

3. 发明申请

US20120171506A1 CURVED PARTS AND METHOD FOR MANUFACTURING THE SAME 审中-公开
标题翻译：弯曲部件及其制造方法
公开(公告)号：US20120171506A1
公开(公告)日：2012-07-05
申请号：US13395477
申请日：2010-09-28
申请人： Takayuki Futatsuka , Kazuhiko Higai , Yoshikiyo Tamai , Takaaki Hira , Takeshi Fujita , Yuji Yamasaki
发明人： Takayuki Futatsuka , Kazuhiko Higai , Yoshikiyo Tamai , Takaaki Hira , Takeshi Fujita , Yuji Yamasaki
IPC分类号： B21C1/00 , B21D31/00
CPC分类号： B21D5/015 , B21C37/14 , B21D47/01 , E04C3/07 , E04C2003/0413 , E04C2003/0439 , E04C2003/0465 , Y10T428/12229
摘要： A curved-part forming method for obtaining a curved part by performing forming on a blank formed of a single metal plate, the method including a bending process in which the blank having a curved outline corresponding to a curve of the curved part in a longitudinal direction is bent into a sectional shape corresponding to a division portion of a sectional shape of the curved part; and a joining process in which two or more portions obtained by the bending process are joined together.
摘要翻译：一种用于通过在由单个金属板形成的坯料上进行成形来获得弯曲部分的弯曲部分形成方法，所述弯曲部分形成方法包括弯曲过程，其中所述坯料具有与所述弯曲部分的纵向方向上的曲线相对应的弯曲轮廓弯曲成对应于弯曲部分的截面形状的分割部分的截面形状; 以及通过弯曲处理获得的两个以上部分连接在一起的接合工序。

4. 发明申请

US20080163961A1 Galvannealed Steel Sheet and Method for Producing the Same 审中-公开
标题翻译：加热退火钢板及其生产方法
公开(公告)号：US20080163961A1
公开(公告)日：2008-07-10
申请号：US11885804
申请日：2006-03-31
申请人： Tatsuya Nakagaito , Takayuki Futatsuka , Hiroshi Matsuda , Yutaka Awajiya , Yasunobu Nagataki
发明人： Tatsuya Nakagaito , Takayuki Futatsuka , Hiroshi Matsuda , Yutaka Awajiya , Yasunobu Nagataki
IPC分类号： C21D9/46 , C21D1/26 , C22C38/22
CPC分类号： C23C2/28 , B32B15/013 , C21D9/46 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/22 , C22C38/24 , C22C38/38 , C23C2/02
摘要： A galvannealed steel sheet contains, by % by mass, about 0.05 to about 0.25% of C, about 2.0% or less of Si, about 1 to about 3% of Mn, about 0.1% or less of P, about 0.01% or less of S, about 0.3 to about 2% of Al, less than about 0.005% of N, about 1% or less of Cr, about 1% or less of V, about 1% or less of Mo, less than about 0.005% of Ti, and less than about 0.005% of Nb, and satisfies the relations, Si +Al >0.6% and Cr +V +Mo =0.1 to 2%, the balance being Fe and inevitable impurities.
摘要翻译：合金化热浸镀锌钢板以质量计含有约0.05〜约0.25％的C，约2.0％以下的Si，约1％至3％的Mn，约0.1％或更少的P，约0.01％或更少的S，约0.3至约2％的Al，小于约0.005％的N，约1％或更少的Cr，约1％或更少的V，约1％或更少的Mo，小于约0.005％的 Ti和小于约0.005％的Nb，并且满足Si + Al> 0.6％和Cr + V + Mo = 0.1〜2％的关系，余量为Fe和不可避免的杂质。

5. 发明授权

US07559997B2 High-strength cold rolled steel sheet and process for producing the same 有权
标题翻译：高强度冷轧钢板及其制造方法
公开(公告)号：US07559997B2
公开(公告)日：2009-07-14
申请号：US10496433
申请日：2003-06-23
申请人： Katsumi Nakajima , Takayuki Futatsuka , Yasunobu Nagataki
发明人： Katsumi Nakajima , Takayuki Futatsuka , Yasunobu Nagataki
IPC分类号： C22C38/04 , C22C38/06 , C21D8/00 , C21D8/04
CPC分类号： C22C38/06 , C21D8/0236 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C22C38/004 , C22C38/04
摘要： The invention provides a high strength cold rolled steel sheet comprising ferrite phases and second phases, in which the mean grain size of the ferrite phases is 20 μm or less, the volume fraction of the second phase is 0.1% or more to less than 10%, the absolute value |Δr| of in-plane anisotropy of r value is less than 0.15, and the thickness is 0.4 mm or more. The high strength cold rolled steel sheet of the present invention has a tensile strength of 370 to 590 MPa, and has excellent stretchability, dent resistance, surface precision, secondary working embrittlement, anti-aging, and surface appearance, therefore it is suitable for outer panels of automobile.
摘要翻译：本发明提供一种包含铁素体相和第二相的高强度冷轧钢板，其中铁素体相的平均粒径为20μm以下，第二相的体积分数为0.1％以上且小于10％，绝对值| Deltar | 的r值的面内各向异性小于0.15，厚度为0.4mm以上。本发明的高强度冷轧钢板的拉伸强度为370〜590MPa，拉伸性，耐凹陷性，表面精度，二次加工脆性，耐老化性，表面外观优异，因此适用于外部汽车面板

6. 发明申请

US20120204993A1 CURVILINEAL CLOSED STRUCTURE PARTS AND METHOD FOR MANUFACTURING THE SAME 有权
标题翻译：曲面封闭结构件及其制造方法
公开(公告)号：US20120204993A1
公开(公告)日：2012-08-16
申请号：US13391850
申请日：2010-09-15
申请人： Kazuhiko Higai , Takayuki Futatsuka , Yoshikiyo Tamai , Takaaki Hira , Yuji Yamasaki
发明人： Kazuhiko Higai , Takayuki Futatsuka , Yoshikiyo Tamai , Takaaki Hira , Yuji Yamasaki
IPC分类号： F16L9/00 , B21C37/06
CPC分类号： B21D47/01 , B21C37/0803 , B21D11/20 , B21D47/04 , B21D51/06 , Y10T29/49391
摘要： A method for manufacturing includes a polygonal shape closed structure part with a bent shape in the longitudinal direction only by press forming. The method uses two metal plates for manufacturing a curvilineal closed structure part and includes a press forming process of forming straight or bent folding lines in the longitudinal direction of the two metal plates at positions corresponding to a polygonal bent shape with a flange formed at least at one of the ends of the width direction of each plate, a process of forming a closed structure by laying the two metal plates to overlap each other flange to flange and end to end for ends without flanges and by welding the portions laid to overlap each other in the longitudinal direction of the metal plates, and a process of forming a polygonal shape closed structure having a bent shape in the longitudinal direction by holding both ends of the closed structure and by compressing it toward its central axis.
摘要翻译：一种制造方法包括仅通过冲压成形在纵向上具有弯曲形状的多边形封闭结构部分。该方法使用两个金属板来制造曲线性封闭结构部件，并且包括压制成型工艺，该方法是在对应于多边形弯曲形状的位置处在两个金属板的纵向上形成直的或弯曲的折叠线，凸缘至少形成在每个板的宽度方向的端部之一，通过将两个金属板铺设成彼此凸缘到凸缘并且端部到端而形成闭合结构的过程而不具有凸缘并且通过焊接彼此重叠的部分在金属板的纵向方向上，并且通过保持封闭结构的两端并且朝向其中心轴线压缩而形成具有在纵向方向上的弯曲形状的多边形封闭结构的工艺。

7. 发明申请

US20080175743A1 Alloyed Hot-Dip Galvanized Steel Sheet and Method of Producing the Same 审中-公开
标题翻译：合金热镀锌钢板及其制造方法
公开(公告)号：US20080175743A1
公开(公告)日：2008-07-24
申请号：US11885805
申请日：2006-03-31
申请人： Takayuki Futatsuka , Tatsuya Nakagaito , Hiroshi Matsuda , Yasunobu Nagataki , Yutaka Awajiya
发明人： Takayuki Futatsuka , Tatsuya Nakagaito , Hiroshi Matsuda , Yasunobu Nagataki , Yutaka Awajiya
IPC分类号： C22C38/04 , C22C38/02
CPC分类号： C22C38/04 , C21D6/005 , C21D8/0405 , C21D9/48 , C21D2211/001 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C21D2211/009 , C22C38/06 , C23C2/02 , C23C2/28 , C23C28/02 , C23C28/023
摘要： An alloyed hot-dip galvanized steel sheet has a composition containing about 0.05 to about 0.25 wt % of C, about 0.5 wt % or less of Si, about 1 to about 3 wt % of Mn, about 0.1 wt % or less of P, about 0.01 wt % or less of S, about 0.1 to about 2 wt % of Al, and less than about 0.005 wt % of N, and satisfying the relations, Si+Al≧0.6 wt %, (0.0006×Al) wt %≦N≦(0.0058−0.0026×Al) wt %, and Al≦(1.25×C0.5−0.57×Si+0.625×Mn) wt %, the balance including Fe and inevitable impurities. The alloyed hot-dip galvanized steel sheet can be obtained without passing through a complicated process, has excellent surface appearance and anti-secondary work embrittlement and high strength, and is thus suitable for application to an automobile steel sheet.
摘要翻译：合金化的热浸镀锌钢板具有C：0.05〜0.25重量％，Si：约0.5重量％以下，Mn：1〜3重量％，P：0.1重量％以下，约0.01重量％或更少的S，约0.1至约2重量％的Al和小于约0.005重量％的N，并且满足Si + Al> = 0.6重量％，（0.0006×Al）wt％ = N <=（0.0058-0.0026×Al）wt％，Al <=（1.25×0.05×0.57×Si + 0.625×Mn）wt％，余量包括Fe和不可避免的杂质。合金化的热浸镀锌钢板可以在不经过复杂工艺的情况下获得，具有优异的表面外观和抗二次加工脆性和高强度，因此适用于汽车钢板。

8. 发明授权

US09009970B2 Curvilineal closed structure parts and method for manufacturing the same 有权
标题翻译：曲线闭合结构件及其制造方法
公开(公告)号：US09009970B2
公开(公告)日：2015-04-21
申请号：US13391850
申请日：2010-09-15
申请人： Kazuhiko Higai , Takayuki Futatsuka , Yoshikiyo Tamai , Takaaki Hira , Yuji Yamasaki
发明人： Kazuhiko Higai , Takayuki Futatsuka , Yoshikiyo Tamai , Takaaki Hira , Yuji Yamasaki
IPC分类号： B21D21/00 , B21D47/01 , B21C37/08 , B21D11/20 , B21D47/04 , B21D51/06
CPC分类号： B21D47/01 , B21C37/0803 , B21D11/20 , B21D47/04 , B21D51/06 , Y10T29/49391
摘要： A method for manufacturing includes a polygonal shape closed structure part with a bent shape in the longitudinal direction only by press forming. The method uses two metal plates for manufacturing a curvilineal closed structure part and includes a press forming process of forming straight or bent folding lines in the longitudinal direction of the two metal plates at positions corresponding to a polygonal bent shape with a flange formed at least at one of the ends of the width direction of each plate, a process of forming a closed structure by laying the two metal plates to overlap each other flange to flange and end to end for ends without flanges and by welding the portions laid to overlap each other in the longitudinal direction of the metal plates, and a process of forming a polygonal shape closed structure having a bent shape in the longitudinal direction by holding both ends of the closed structure and by compressing it toward its central axis.
摘要翻译：一种制造方法包括仅通过冲压成形在纵向上具有弯曲形状的多边形封闭结构部分。该方法使用两个金属板来制造曲线性封闭结构部件，并且包括压制成型工艺，该方法是在对应于多边形弯曲形状的位置处在两个金属板的纵向上形成直的或弯曲的折叠线，凸缘至少形成在每个板的宽度方向的端部之一，通过将两个金属板铺设成彼此凸缘到凸缘并且端部到端而形成闭合结构的过程而不具有凸缘并且通过焊接彼此重叠的部分在金属板的纵向方向上，并且通过保持封闭结构的两端并且朝向其中心轴线压缩而形成具有在纵向方向上的弯曲形状的多边形封闭结构的工艺。

9. 发明申请

US20090014098A1 High-Strength Hot-Dip Galvanized Steel Sheet Excellent in Formability and Method for Producing Same 审中-公开
标题翻译：高强度热浸镀锌钢板，成型性优良，生产方法相同
公开(公告)号：US20090014098A1
公开(公告)日：2009-01-15
申请号：US11886622
申请日：2006-04-06
申请人： Hiroshi Matsuda , Tatsuya Nakagaito , Takayuki Futatsuka , Shusaku Takagi , Yasunobu Nagataki
发明人： Hiroshi Matsuda , Tatsuya Nakagaito , Takayuki Futatsuka , Shusaku Takagi , Yasunobu Nagataki
IPC分类号： C21D11/00 , C22C38/18 , C22C38/38 , C22C38/22 , C22C38/24 , C22C38/32 , C22C38/20 , C22C38/40
CPC分类号： C21D9/46 , B32B15/013 , C21D2211/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C22C38/40 , C23C2/02 , C23C2/06 , C23C2/28 , C23F17/00
摘要： There is provided a high-strength hot-dip galvanized steel sheet having excellent formability, the steel sheet eliminating special pre-structure control and capable of being produced by using a hot-dip galvanized steel-sheet production line that is not capable of sufficiently ensuring an austempering time after annealing. A high-strength hot-dip galvanized steel sheet includes, on the basis of mass percent, 0.05-0.3% C, 1.4% or less (including 0%) Si, 0.08%-3% Mn, 0.003-0.1% P, 0.07% or less S, 0.1-2.5% Al, 0.1-0.5% Cr, and 0.007% or less N, Si+Al≧0.5%, and the balance being Fe and incidental impurities, wherein the steel sheet has a retained austenite content of 3% or more by volume fraction, and wherein the average aspect ratio of retained austenite grains is 2.5 or less.
摘要翻译：提供了一种成形性优异的高强度热浸镀锌钢板，该钢板消除了特殊的预结构控制，并且能够通过使用不能充分确保的热浸镀锌钢板生产线来生产退火后的奥氏体时间。高强度热浸镀锌钢板以质量％计含有0.05-0.3％C，1.4％以下（包括0％）Si，0.08％-3％Mn，0.003-0.1％P，0.07 ％以下S，0.1〜2.5％的Al，0.1-0.5％的Cr和0.007％以下的N，Si + Al> = 0.5％，余量为Fe和附带的杂质，其中钢板的残余奥氏体含量 3体积％以上，残留奥氏体晶粒的平均纵横比为2.5以下。

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