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公开(公告)号：US20230302513A1
公开(公告)日：2023-09-28
申请号：US17911966
申请日：2022-03-26
申请人： OSG CORPORATION
发明人： Teruya Hisada
CPC分类号： B21B27/02 , C23C28/044 , C23C8/26
摘要： Provided is a rolling die that increases the durability of a nitrided molded surface. The rolling die (1) includes a tool base material that is made of steel and has a molded surface (2) on which a plurality of working teeth (10) is formed. The tool base material includes a nitride layer (15) in which nitrogen is diffused. The nitride layer (15) is disposed to reach a position that is 20 to 70 μm in depth from the molded surface (2). The molded surface (2) has a surface hardness of at least 1100 HV. The rate of depth change from the depth (D1) of the nitride layer (15) at crests (11) of the working teeth (10) to the depth (D2) of the nitride layer (15) at roots (13) of the working teeth (10) is not higher than 30%.
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公开(公告)号：US20180171448A1
公开(公告)日：2018-06-21
申请号：US15385684
申请日：2016-12-20
发明人： Justin R. Hawkes , Joseph C. Rampone , Andrzej Ernest Kuczek , Tahany Ibrahim El-Wardany , Randy P. Salva , Patrick Louis Clavette , Thomas J. Garosshen , Adam S. Meusel , Michael A. Klecka , Robert E. Erickson , Joseph B. Wysocki
CPC分类号： C22F1/04 , B21B27/02 , B21B37/58 , B21H7/16 , B23P9/02 , B24B27/0038 , B24B39/00 , C21D7/02 , C21D7/08
摘要： An embodiment of a tool assembly includes a robotic assembly, a tool mount, and a non-axisymmetric deep rolling tool. The robotic assembly includes a plurality of linear arms connected in series between a base end and a working end. Adjacent ones of the plurality of arms are connected via a corresponding plurality of multi-axis joints such that the working end is articulated by movement of one or more of the plurality of arms relative to one or more of the plurality of multi-axis joints. The tool mount is connected to one of the linear arms or one of the multi-axis joints at the working end of the robotic assembly. The non-axisymmetric deep rolling tool is connected to the tool mount, and includes a spring-loaded shaft assembly disposed along a first axis. A hub has an upper hub portion adjacent to the distal end of the spring-loaded shaft assembly aligned with the first axis, and a lower hub portion extending along a second axis, forming a nonzero angle relative to the first axis. A roller disk is joined to the lower portion of the hub and is rotatable about the second axis parallel to the second portion of the hub.
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公开(公告)号：US09815098B2
公开(公告)日：2017-11-14
申请号：US14912727
申请日：2014-09-17
申请人： HITACHI METALS, LTD.
发明人： Toshiyuki Hattori , Nozomu Oda , Yasunori Nozaki
IPC分类号： B21B27/02 , B21B27/03 , B22D13/02 , C22C37/00 , C22C37/04 , C22C37/08 , C22C38/00 , C22C38/60 , B22D19/16 , B21B1/26
CPC分类号： B21B27/032 , B21B1/26 , B21B27/02 , B21B2267/24 , B22D13/02 , B22D13/026 , B22D19/16 , C22C37/00 , C22C37/04 , C22C37/08 , C22C38/00 , C22C38/60
摘要： A centrifugally cast, hot-rolling composite roll comprising an outer layer formed by a centrifugal casting method, and an inner layer made of ductile cast iron and integrally fused to the outer layer; the outer layer having a chemical composition comprising by mass 1.6-3% of C, 0.3-2.5% of Si, 0.3-2.5% of Mn, 0.1-5% of Ni, 2.8-7% of Cr, 1.8-6% of Mo, 3.3-6.5% of V, and 0.02-0.12% of B (or 0.01-0.12% of B, and 0.05-02% of S), the balance being Fe and inevitable impurities, and meeting the relation expressed by Cr/(Mo+0.5W)≧−2/3[C−0.2(V+1.19Nb)]+11/6, wherein W=0, and Nb=0, when W and Nb are not contained, and containing by area 1-15% of MC carbide, 0.5-20% of carboboride, and 1-25% of Cr-based carbide.
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4.发明申请公开(公告)号：US20170320113A1
公开(公告)日：2017-11-09
申请号：US15512848
申请日：2015-10-07
发明人： Hitoshi NIKAIDO , Toru YONEBAYASHI , Koichi SATO , Teruo ITO , Daiki KAMADA
CPC分类号： B21B1/0805 , B21B1/08 , B21B27/02 , B21B27/021 , B21D53/88 , B21H8/00 , B21H8/02
摘要： A method for producing a metal sheet with raised lines uses a rolling mill including roll stands. In a preparing step, a grooved roll is prepared, the grooved roll including grooves. In a choosing step, a stand at least one stage before the last stand is chosen. In an incorporating step, the grooved roll is incorporated in as an upper roil of the chosen, specified stand. In a forming step, a workpiece is formed into a metal sheet with raised lines formed corresponding to the respective grooves. In the forming step, a maximum rolling reduction achieved by rolls of the specified stand is set to a provisional value that is lower than a required value. After the leading edge of the workpiece reaches the stand next to the specified stand, the maximum rolling reduction of the specified stand is changed to the required value.
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公开(公告)号：US09724855B2
公开(公告)日：2017-08-08
申请号：US14403875
申请日：2013-06-26
CPC分类号： B29C43/46 , B21B1/22 , B21B27/02 , B21D13/04 , B21D13/08 , B21D28/12 , B29C2043/464 , B29D16/00
摘要： In the present invention, when synchronization is lost due to backlash, and deviation between the rotational phases of a first processing roll and a second processing roll occurs, deviation between the rotational phases of dummy rotating bodies also occurs, and dummy blade parts of the dummy rotating bodies interfere with each other before blade parts of cutting blades of the first processing roll and the second processing roll (40) interfere with each other. Thus, interference between the blade parts is prevented.
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6.发明申请公开(公告)号：US20170216902A1
公开(公告)日：2017-08-03
申请号：US15485669
申请日：2017-04-12
申请人： Vicon Machinery, LLC
IPC分类号： B21D39/02
CPC分类号： F24F13/0209 , B21B27/02 , B21D39/023 , F16L23/14
摘要： A vertical Pittsburgh Seam closing apparatus having a base supporting surface, a track mechanism for moving a carriage assembly which holds seam forming members used to close a Pittsburgh Seam, a pair of upper and lower guide members for guiding the duct section into a proper vertical position, and upper and lower clamping members positioned inside the duct section and adjacent the inside portion of the Pittsburgh Seam to be closed, the upper guide members and clamping member being selectively movable and adjustable for accommodating different duct section lengths. In one embodiment, the seam forming assembly includes three roller members mounted in vertical arrangement to each other, one roller member being V-shaped in configuration and the other two roller members being substantially cylindrical in shape. The V-shaped roller member may also include one or more projecting members for forming dimples in the closing process to prevent shifting and/or slipping of the closed seam.
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公开(公告)号：US20170209906A1
公开(公告)日：2017-07-27
申请号：US15321575
申请日：2015-06-26
发明人： Yoichi Itoh , Kenji Ichino , Tetsuo Mochida
IPC分类号： B21B27/02 , B22D25/02 , C22C38/36 , C22C38/32 , C22C37/04 , C22C38/24 , C22C38/22 , C22C38/04 , C22C38/02 , C22C38/00 , B22D13/02 , C22C38/26
CPC分类号： B21B27/02 , B21B27/024 , B21B2267/26 , B22D13/02 , B22D25/02 , C21D5/00 , C22C37/00 , C22C37/04 , C22C37/06 , C22C37/10 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/32 , C22C38/36
摘要： A centrifugal cast caliber roll for a hot rolling mill has excellent abrasion resistance, fatigue resistance, and slip resistance. The roll has a chemical composition containing, by mass %, C: 1.8% or more and 3.0% or less, Si: 0.2% or more and 1.0% or less, Mn: 0.2% or more and 1.5% or less, Cr: 5% or more and 9% or less, Mo: 4.0% or more and 7.0% or less, V: 4.0% or more and 7.0% or less, Nb: 0.5% or more and 2.0% or less, and the balance being Fe and inevitable impurities, in which the relationship 0.6≦(C−0.24V−0.13Nb)≦1.4 (where C, V, and Nb each denote the content (mass %) of the corresponding chemical element) is satisfied, and has a surface hardness of Hs 67 or higher and Hs 76 or lower in terms of shore hardness.
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公开(公告)号：US20170157736A1
公开(公告)日：2017-06-08
申请号：US15434797
申请日：2017-02-16
摘要： A device and methods are provided for deep rolling. In one embodiment, a deep rolling tool for applying compressive stress with rolling elements includes a fork having a base section and a plurality of fork arms, each fork arm extends outwardly from the base section and the fork arms are separated from one another to form an opening. The deep rolling tool may also include rolling elements, wherein each rolling element is mounted at the distal end of a fork arm, and the rolling elements are configured to apply a compressive stress to articles received by the deep rolling tool.
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公开(公告)号：US20160193637A1
公开(公告)日：2016-07-07
申请号：US14911947
申请日：2014-08-28
申请人： HITACHI METALS, LTD.
IPC分类号： B21B27/02
CPC分类号： B21B27/02 , B21B27/032 , B22D13/02 , B22D13/026 , B22D19/16 , B32B15/011 , C22C37/00 , C22C37/06 , C22C37/08 , C22C37/10 , C22C38/02 , C22C38/04 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/32 , C22C38/38 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/54 , C22C38/56 , C22C38/60
摘要： A centrifugally cast composite roll comprising an outer layer formed by a centrifugal casting method, and an inner layer made of ductile cast iron and integrally fused to the outer layer, the outer layer being made of an Fe-based alloy comprising by mass 1.3-3.7% of C, 0.3-3% of Si, 0.1-3% of Mn, 1-7% of Cr, 1-8% of Mo, at least one of 2.5-7% of V, 0.1-3% of Nb and 0.1-5% of W (V is indispensable), and 0.01-0.2% of B and/or 0.05-0.3% of S, the balance being substantially Fe and inevitable impurities, the outer layer having a structure containing no graphite; the inner layer comprising a core portion fused to the outer layer, and a drive-side shaft portion and a free-side shaft portion integrally extending from both ends of the core portion; the total amount of Cr, Mo, V, Nb and W being 0.35-2% by mass in an end portion of the drive-side shaft portion and 0.15-1.8% by mass in an end portion of the free-side shaft portion, the former being larger than the latter by 0.2% or more by mass.
摘要翻译： 一种离心铸造复合辊，其包括通过离心浇铸法形成的外层和由球墨铸铁制成的内层，并与外层整体熔合，外层由Fe基合金制成，其质量为1.3-3.7 ％的C，0.3-3％的Si，0.1-3％的Mn，1-7％的Cr，1-8％的Mo，至少一种的2.5-7％的V，0.1-3％的Nb和 0.1-5％的W（V是不可缺少的），和0.01-0.2％的B和/或0.05-0.3％的S，余量基本上是Fe和不可避免的杂质，外层是不含石墨的结构。 所述内层包括与所述外层熔合的芯部，以及从所述芯部的两端一体延伸的驱动侧轴部和自由侧轴部; 驱动侧轴部的端部的Cr，Mo，V，Nb，W的总量为0.35〜2质量％，在自由侧轴部的端部为0.15〜1.8质量％ 前者大于后者的0.2质量％以上。
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公开(公告)号：US20140331730A1
公开(公告)日：2014-11-13
申请号：US14359191
申请日：2012-11-15
申请人： Jilin University
发明人： Mingzhe Li , Zhiwei Liu , Qigang Han , Zhongyi Cai , Renjun Li , Zhen Ssui , Wenzhi Fu , Chunguo Liu , Ningjia Qiu
摘要： A rolling device for three-dimensional curved surface forming or thin sheet rolling of a sheet metal, comprising a forming roll (1), a supporting mechanism, an adjusting mechanism and a driving mechanism. The forming roll (1) comprises an upper forming roll (1a) and a lower forming roll (1b); the supporting mechanism is a multi-point supporting mechanism (2a) or an overall supporting mechanism (2b) for supporting the forming roll; the adjusting mechanism is a multi-point shape adjusting mechanism (3) and/or an overall displacing mechanism for adjusting the shape and/or relative height of the forming roll (1); and the driving mechanism applies a torque to one or two ends of the upper forming roll (1a) and/or the lower forming roll (1b). The present invention also provides a method for sheet rolling by using the rolling device. The rolling device and rolling method can achieve three-dimensional curved surface rolling or thin sheet rolling of a sheet metal simply, quickly and at a low cost.
摘要翻译： 一种用于三维曲面成形或薄板轧制的轧制装置，包括成形辊（1），支撑机构，调节机构和驱动机构。 成形辊（1）包括上成型辊（1a）和下成形辊（1b）; 支撑机构是用于支撑成形辊的多点支撑机构（2a）或整体支撑机构（2b） 调节机构是用于调整成形辊（1）的形状和/或相对高度的多点形状调节机构（3）和/或整体移位机构。 并且驱动机构向上成形辊（1a）和/或下成形辊（1b）的一端或两端施加扭矩。 本发明还提供了一种使用滚动装置进行片材轧制的方法。 轧制装置和轧制方法可以简单，快速且低成本地实现金属板的三维曲面轧制或薄板轧制。
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