公开(公告)号：US20180099323A1

公开(公告)日：2018-04-12

申请号：US15567525

申请日：2016-04-25

申请人： MITSUBISHI HEAVY INDUSTRIES, LTD. ,  AISIN KEIKINZOKU KABUSHIKI KAISHA

发明人： Takahiro TACHIBANA ,  Jin SHINMURA ,  Arata YOSHIDA ,  Hiroaki MATSUI

IPC分类号： B21D7/08 ,  B21B39/10 ,  B21B1/098 ,  B21B1/09 ,  B21B1/092 ,  B21B1/095 ,  B21B1/088

CPC分类号： B21D7/08 ,  B21B1/088 ,  B21B1/09 ,  B21B1/092 ,  B21B1/095 ,  B21B1/098 ,  B21B13/10 ,  B21B39/10 ,  B21D11/08 ,  B21D11/20

摘要： A bending method feeds a long workpiece material made of metal and having a plurality of thickness portions disposed at different angles between rollers and bends the workpiece material. An initial shape of the workpiece material is a straight line or a bend with a bend radius larger than a target bend radius, a thickness of a cross section of the workpiece material along a bend radius direction is set to increase from an inner side toward an outer side of the bend radius direction, the workpiece material is fed between the rollers and rolled in a way that an amount of rolling in a region corresponding to the outer side of the bend radius direction is larger than an amount of rolling in a region corresponding to the inner side, and the workpiece material is bent to have the target bend radius from the initial shape.

公开(公告)号：US20160376675A1

公开(公告)日：2016-12-29

申请号：US15039753

申请日：2014-12-05

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Masaki MIZOGUCHI ,  Kazutoshi ICHIKAWA ,  Kazuaki MITSUYASU ,  Hirokazu SUGIYAMA

IPC分类号： C21D9/00 ,  C22C38/48 ,  C22C38/46 ,  C22C38/44 ,  C22C38/42 ,  C22C38/16 ,  C22C38/14 ,  C22C38/12 ,  C22C38/08 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C33/04 ,  C21C7/06 ,  C21D8/00 ,  B22D25/02 ,  C21D1/60 ,  C22C38/50

CPC分类号： C21D9/0068 ,  B21B1/088 ,  B22D25/02 ,  C21C7/06 ,  C21D1/60 ,  C21D8/00 ,  C21D8/005 ,  C21D8/0226 ,  C21D8/0263 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/004 ,  C22C33/04 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/58

摘要： An H-section steel has a predetermined chemical composition in which Ti oxides having a grain size of 0.01 μm to 3.0 μm are included at a density of 30 pieces/mm2 or more, a thickness of a flange is 100 mm to 150 mm, an area fraction of bainite at a ⅙ position from a surface of the flange in a length direction and at a ¼ position from the surface thereof in a thickness direction is 80% or more, a yield strength or 0.2% proof stress is 450 MPa or more, and a tensile strength is 550 MPa or more, a Charpy absorbed energy at 21° C. at a ½ position from the surface of the flange in the length direction and at a ¾ position from the surface thereof in the thickness direction is 100 J or more, and an average austenite grain size is 50 μm to 200 μm.

摘要翻译： H型钢具有预定的化学组成，其中包括具有0.01μm至3.0μm的粒径的Ti氧化物，密度为30个/ mm 2或更大，凸缘的厚度为100mm至150mm， 贝氏体在距离法兰表面长度方向和距表面厚度方向1/4位置处的贝氏体面积分数为80％以上，屈服强度或0.2％屈服应力为450MPa以上 ，并且拉伸强度为550MPa以上时，在法兰的长度方向的表面和厚度方向的表面的¾位置的1/2位置处的21℃下的夏比吸收能为100J 以上，平均奥氏体粒径为50μm〜200μm。

公开(公告)号：US20150204071A1

公开(公告)日：2015-07-23

申请号：US14416403

申请日：2013-11-13

申请人： NIPPON STEEL & SUMITOMO METAL CORPORATION

发明人： Masaki Mizoguchi ,  Kazutoshi Ichikawa ,  Kazuaki Mitsuyasu ,  Hirokazu Sugiyama

IPC分类号： E04C2/30 ,  C21D8/00 ,  C21D6/00 ,  C21D1/60 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/16 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/14 ,  C22C38/58 ,  E04C3/04 ,  E04C2/08

CPC分类号： E04C2/30 ,  B21B1/088 ,  B21B3/00 ,  C21C7/04 ,  C21C7/064 ,  C21D1/60 ,  C21D6/001 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D8/00 ,  C21D8/005 ,  C21D8/0226 ,  C21D8/0247 ,  C21D2211/002 ,  C21D2211/004 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/58 ,  E04C2/08 ,  E04C3/04

摘要： There is provided an H-section steel in which a number density of oxide particles having an equivalent circle diameter of 0.005 μm to 2.0 μm per unit area is 100 pieces/mm2 to 5000 pieces/mm2, the oxide particles includes Ca, Al, and O as a composition, the amount of Ca is 5% or more, the amount of Al is 5% or more, and a total amount of Ca and Al is 50% or more by mass ratio excluding O in the oxide particles, a thickness of the flange is 100 mm to 150 mm, a bainite fraction in a metallographic structure of the flange is 80% or more at a strength evaluation position, and an average prior austesiite grain size in the metallographic structure of the flange is 200 μm or less at a toughness evaluation position.

摘要翻译： 提供了H型钢，其中每单位面积的当量圆直径为0.005μm〜2.0μm的氧化物粒子的数密度为100个/ mm 2〜5000个/ mm 2，氧化物粒子包括Ca，Al，和 作为组成，作为组成，Ca的量为5％以上，Al的量为5％以上，Ca和Al的总量除氧化物粒子的O以外还含有50质量％以上的质量比，厚度 在法兰的金相组织中的贝氏体分数在强度评价位置为80％以上，法兰的金相组织中的平均现有奥氏体晶粒尺寸为200μm以下 在韧性评估位置。

公开(公告)号：US06601422B2

公开(公告)日：2003-08-05

申请号：US10073816

申请日：2002-02-11

申请人： Ralf Hartmann ,  Detlef Breunung ,  Otmar Palzer ,  Hans-Jürgen Reismann

发明人： Ralf Hartmann ,  Detlef Breunung ,  Otmar Palzer ,  Hans-Jürgen Reismann

IPC分类号： B21B3768

CPC分类号： B21B37/16 ,  B21B1/088 ,  B21B1/095

摘要： A rolling train for structural shapes in which at least on one side of a train having a plurality of mill stands, e.g. universal mill stands, a detector is provided for the actual profile of the rolled product. The actual profile is compared with a setpoint profile and corrected setpoint values for the operating parameters of the individual stands are generated for a corrected subsequent rolling operation or even the same rolling operation, appropriately weighted for the contribution of the various stands to the rolling effect.

公开(公告)号：US20030079512A1

公开(公告)日：2003-05-01

申请号：US10272522

申请日：2002-10-16

申请人： SMS Meer GmbH

发明人： Hans Georg Hartung ,  Thomas Kosak ,  Michael Minnerop

IPC分类号： B21B037/68

CPC分类号： B21B1/088 ,  B21B31/20 ,  B21B37/16 ,  B21B39/04 ,  B21B39/12 ,  B21B39/14 ,  B21B2273/22

摘要： An apparatus for repositioning the web of a rolled structural shape such as an H-beam or I-beam in which the web spans between two flanges. The horizontal rolls of the mill stand are individually adjusted by computer based upon a measurement of the web profile upstream of the mill stand along a conveyor for the workpiece so that the rolling gap is located centrally between the upper and lower flange edges notwithstanding the fact that the web may have originally been off-center.

摘要翻译： 一种用于重新定位诸如H型梁或I型梁的卷起的结构形状的幅材的装置，其中幅材跨过两个凸缘。 轧机机架的卧式轧辊可以通过计算机根据轧机机架上游沿着工件传送器测量的方式进行单独调整，以使滚动间隙位于上下凸缘之间的中心位置，尽管如此， 网路可能原本偏离中心。

公开(公告)号：US5901592A

公开(公告)日：1999-05-11

申请号：US28476

申请日：1998-02-24

申请人： Isamu Okamura

发明人： Isamu Okamura

IPC分类号： B21B13/10 ,  B21B1/08 ,  B21B1/088 ,  B21B31/32 ,  B21B37/16 ,  B21B37/18 ,  B21B37/62 ,  B21B37/58

CPC分类号： B21B37/16 ,  B21B37/62 ,  B21B1/088 ,  B21B2013/106 ,  B21B31/32

摘要： The method of rolling a wide flange beam results in an improved accuracy of the web thickness and the flange thickness in a universal rolling mill. Rolling a wide flange beam in a universal rolling mill having horizontal rolls and vertical rolls, switching over the positional control gain for each of drives for the horizontal rolls and drives for the vertical rolls by means of measured values of rolling load on the horizontal rolls and the vertical rolls during rolling, or filtering a control amount of the horizontal roll position calculated from a rolling load acting on the horizontal rolls and a control amount of the vertical roll position calculated from a rolling load acting on the vertical rolls to achieve different responses of horizontal roll rolling and vertical roll rolling, results in reducing mutual interference between horizontal roll rolling and vertical roll rolling caused through the rolling material.

摘要翻译： 轧制宽法兰梁的方法在万能轧机中提高了幅材厚度和凸缘厚度的精度。 在具有水平辊和垂直辊的通用轧机中滚动宽法兰梁，通过水平辊上的轧制载荷的测量值切换用于水平辊的每个驱动器的位置控制增益和垂直辊的驱动， 轧制过程中的垂直辊，或过滤由作用在水平辊上的轧制载荷计算出的水平轧辊位置的控制量以及从作用在垂直辊上的轧制载荷计算出的垂直辊位置的控制量，以实现不同的响应 水平辊轧和垂直辊轧，从而减少横轧和垂直轧制之间的相互干扰。

公开(公告)号：US5411609A

公开(公告)日：1995-05-02

申请号：US138050

申请日：1993-10-19

申请人： Takao Karoake ,  Ken Nakamura ,  Iwao Kashiwagi

发明人： Takao Karoake ,  Ken Nakamura ,  Iwao Kashiwagi

IPC分类号： B21B1/08 ,  B21B1/16 ,  B21B3/02 ,  B23P15/06 ,  F16J9/20 ,  C22C37/00 ,  F16J9/00

CPC分类号： F16J9/203 ,  B21B1/166 ,  B23P15/065 ,  F16J9/206 ,  B21B1/088 ,  B21B3/02 ,  Y10S277/924 ,  Y10S277/94

摘要： A section steel wire for an oil ring for use in an internal combustion engine, consisting essentially of, by weight, 0.6 to 1.5% carbon, not more than 1.5% Si, not more than 1.5% Mn, more than 20% and not more than 25% Cr, and optionally containing at least one group selected from three groups consisting of a group of at least one element of Mo and W in total amount of not more than 3% of "Mo+W/2", another group of at least one element of V and Nb in total amount of not more than 3% of "V+Nb/2" and still another group of at least one element selected from not more than 12% Co, not more than 5% Ni and not more than 5% Cu, and balance of Fe and unavoidable impurities. The section steel wire has a Vickers hardness of HV 300 to HV 450 and has a substantially H-or X-shaped cross-section. A thickness ratio of the thickness of the web portion bridging the flange portions to the total thickness (T) of the flange portions is not greater than 0.3.

摘要翻译： 一种用于内燃机的油环的截面钢丝，主要由重量比为0.6-1.5％的碳，不超过1.5％的Si，不超过1.5％的Mn，大于20％，不超过20％ 并且任选地含有至少一种选自由Mo和W中的至少一种元素组成的组中的至少一种，其总量不超过“Mo + W / 2”的3％的另一组 V和Nb的至少一种元素的总量不超过“V + Nb / 2”的3％，另外一组选自不大于12％Co，不超过5％Ni的至少一种元素，以及 不超过5％的Cu，余量为Fe和不可避免的杂质。 截面钢丝具有HV 300至HV 450的维氏硬度，并且具有基本上H形或X形的横截面。 将凸缘部分桥接的腹板部分的厚度与凸缘部分的总厚度（T）的厚度比不大于0.3。

公开(公告)号：US5343726A

公开(公告)日：1994-09-06

申请号：US956719

申请日：1992-10-02

申请人： Erich Reth

发明人： Erich Reth

IPC分类号： B21B1/088 ,  B21B1/08 ,  B21B1/14 ,  B21B13/12 ,  B21B27/02 ,  B21B1/12

CPC分类号： B21B1/088 ,  B21B1/14

摘要： A rolling train for rolling girder sections includes at least one two-high reversing roughing stand and a plurality of subsequent universal stands for work rolling and finish rolling. Two universal stands and an upsetting stand are combined to form a reversing tandem group. A universal sizing stand for passing rolling is arranged immediately subsequent to the tandem group. The universal stands of the tandem group have double-cone shaped vertical rolls and the universal sizing stand has cylindrical vertical rolls. The girder section is rolled in several successive passes with the flanges of the section being directed outwardly and the outwardly directed flanges are rolled so as to extend parallel in a last smoothing pass.

摘要翻译： 一种用于轧制梁段的轧制机组包括至少一个两高回转粗轧机和多个随后的工作轧制和精轧的通用机架。 两个通用立场和一个镦锻台架组合形成一个反转串联组。 在串联组之后立即布置通用轧制通用尺寸。 串联组的通用机架具有双锥形垂直辊，通用尺寸支架具有圆柱形垂直辊。 梁部分以几次连续的轧制，该部分的凸缘被向外指向，并且向外的凸缘被卷起以在最后的平滑过程中平行延伸。

公开(公告)号：US5304262A

公开(公告)日：1994-04-19

申请号：US822209

申请日：1992-01-17

申请人： Takao Karaoke ,  Ken Nakamura ,  Iwao Kashiwagi

发明人： Takao Karaoke ,  Ken Nakamura ,  Iwao Kashiwagi

IPC分类号： B21B1/08 ,  B21B1/16 ,  B21B3/02 ,  B21C37/04 ,  B21D28/24 ,  B23P15/06 ,  C21D8/06 ,  F16J9/20 ,  C21D8/00 ,  C22C38/18

CPC分类号： C21D8/065 ,  B21B1/166 ,  B21C37/04 ,  B21D28/243 ,  B23P15/065 ,  F16J9/20 ,  B21B1/088 ,  B21B3/02 ,  Y10S277/924 ,  Y10S277/94 ,  Y10T29/49279 ,  Y10T29/49281

摘要： A two-piece oil ring, for use in an internal combustion engine, with the oil ring being made from a martensitic stainless steel material having high consisting essentially of more than 0.8 wt % but less than 0.95 wt % of C, not more than 1.0 wt % of Si, not more than 1.0 wt % of Mn, from 15.0 wt % to 20.0 wt % of Cr and a balance substantially Fe and incidental impurities. The oil ring has a hardness ranging from HV300 to HV450 and a substantially H- or X-shaped cross-section. A web portion interconnecting left and right halves of the H- or X-shaped cross-section has a thickness not greater than 0.3 in terms of the ratio of the total thickness of the ring. Oil passage holes are formed in the web portion. A nitrided layer is formed on the sliding surface thereof which makes a sliding contact with the inner surface of a cylinder of the engine. The material may further contain suitable amounts of at least one of Mo, W, V, Nb, Ni and Co. The oil ring is produced by bending a wire of the martensitic stainless steel material by a process including warm roll dies plastic working and a subsequent cold roll dies plastic working through which a modified cross-section is imparted to the material, continuous annealing, punching for forming oil passage holes by punching, and continuous hardening and tempering.

摘要翻译： 一种用于内燃机的两片式油环，油环由马氏体不锈钢材料制成，该材料具有基本上大于0.8重量％但小于0.95重量％的C，不大于1.0 重量％的Si，不大于1.0重量％的Mn，15.0重量％至20.0重量％的Cr，余量基本上为Fe和附带的杂质。 油环的硬度范围为HV300至HV450，基本为H或X形横截面。 将H或X形横截面的左半部和右半部互连的腹板部分的厚度以环的总厚度的比例计不大于0.3。 在纸幅部分中形成油通道孔。 在其滑动表面上形成氮化层，其与发动机的气缸的内表面滑动接触。 该材料可以进一步包含适量的Mo，W，V，Nb，Ni和Co中的至少一种。该油环是通过将热轧模具塑料加工和 随后的冷轧模具通过塑料加工，通过该工件向材料赋予改进的横截面，连续退火，通过冲压形成油通道孔的冲压，以及连续淬火和回火。

公开(公告)号：US5009094A

公开(公告)日：1991-04-23

申请号：US367947

申请日：1989-06-19

申请人： Hiroyuki Hayashi ,  Tsuneo Seto ,  Hironori Miura ,  Yoji Fujimoto

发明人： Hiroyuki Hayashi ,  Tsuneo Seto ,  Hironori Miura ,  Yoji Fujimoto

IPC分类号： B21B1/08

CPC分类号： B21B1/088

摘要： H-shaped steel products having substantially a constant web height are efficiently manufactured from workpieces after breakdown rolling by using a particular universal rolling mill comprising a pair of width variable horizontal rolls and a pair of vertical rolls in rough universal rolling and/or finish universal rolling stages without arrangement of rolls in the same size series having different flange thicknesses.