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20 条记录 (耗时 0.038 秒)

    Method for smoothing steel pipe seam portion
    4.
    发明授权
    Method for smoothing steel pipe seam portion 失效
    钢管接缝部分的平滑方法

    公开(公告)号：US06375059B2

    公开(公告)日：2002-04-23

    申请号：US09759465

    申请日：2001-01-16

    申请人： Toshio Ohnishi ,  Masahiro Kagawa ,  Yoshnori Sugie ,  Koji Sugano ,  Nobuki Tanaka ,  Kingo Sawada ,  Masao Shoji ,  Takaaki Toyooka ,  Yuji Hashimoto ,  Motoaki Itadani ,  Akira Yorifuji ,  Masanori Nishimori

    发明人： Toshio Ohnishi ,  Masahiro Kagawa ,  Yoshnori Sugie ,  Koji Sugano ,  Nobuki Tanaka ,  Kingo Sawada ,  Masao Shoji ,  Takaaki Toyooka ,  Yuji Hashimoto ,  Motoaki Itadani ,  Akira Yorifuji ,  Masanori Nishimori

    IPC分类号： B23K3100

    CPC分类号： B21C37/0811

    摘要： A method and apparatus for smoothing a thick walled portion of a steel pipe produced by pressure-welding two opposite longitudinal edges of an open pipe with a squeeze roll after being subjected to induction heating. Outer and inner reduction rollers pressure sandwiches the thick walled portion from the outer and inner surfaces of the pipe, a support supports the inner reduction roller to be rotatable and containing a water passage for cooling water, a connecting rod connects the support device to a coupler and contains a further water passage for feeding cooling water to the water passage, and an anchor holds the connecting rod. In the method of producing steel pipes two opposite longitudinal edges of the open pipe are preformed before being subjected to the induction heating and thereafter a thick walled portion is smoothed by the above-described.

    摘要翻译： 在进行感应加热之后，通过挤压辊对开口管的两个相对的纵向边缘进行压焊而制造的钢管的厚壁部分的平滑方法和装置。 外压缩辊和内减压辊压力从管的外表面和内表面夹住厚壁部分，支撑件支撑内部还原辊以可旋转并且容纳用于冷却水的水通道，连杆将支撑装置连接到联接器 并且包含用于将冷却水供给到水通道的另外的水通道，并且锚固住连接杆。 在制造钢管的方法中，开口管的两个相对的纵向边缘在进行感应加热之前预先形成，然后通过上述方法使厚壁部分平滑。

    Rolling mill
    7.
    发明授权
    Rolling mill 失效
    轧机

    公开(公告)号：US06216520B1

    公开(公告)日：2001-04-17

    申请号：US09376320

    申请日：1999-08-18

    申请人： Shigeharu Ochi ,  Hiroshi Fujiwara ,  Sho Inui ,  Takaaki Toyooka ,  Motoaki Itadani ,  Akira Yorifuji ,  Toshio Onishi ,  Koji Sugano ,  Mikio Kodaka ,  Nobuki Tanaka

    发明人： Shigeharu Ochi ,  Hiroshi Fujiwara ,  Sho Inui ,  Takaaki Toyooka ,  Motoaki Itadani ,  Akira Yorifuji ,  Toshio Onishi ,  Koji Sugano ,  Mikio Kodaka ,  Nobuki Tanaka

    IPC分类号： B21B3107

    CPC分类号： B21B13/103

    摘要： A rolling mill comprising a roll unit and a drive unit for driving the roll unit. The drive unit comprises an outer housing, a pair of large-diameter ring-like driving bevel gears disposed concentric with the pass line, an input shaft mechanism for rotating the driving bevel gears, and transmission mechanisms for transmitting the torque of the driving bevel bears to the rolls. Each transmission mechanism comprises a small-diameter transmission bevel gear caught between and engaging with the driving bevel gears and first and second transmission shafts for transmitting the torque of the transmission bevel gear to a roll. The drive and roll units are coupled and uncoupled by couplings. Four positioning parts are formed on the outer periphery of the inner housing of the roll unit. The outer housing of the drive unit is generally in the shape of a ring, and four positioning parts are formed on the inner periphery of the outer housing. When the inner housing is fitted into the outer housing, the inner housing is positioned in the outer housing by the positioning parts laterally and longitudinally and also in both directions of the pass line by stoppers and hold-downs.

    摘要翻译： 一种轧机，包括辊单元和用于驱动辊单元的驱动单元。 驱动单元包括外壳，与通行线同心设置的一对大直径环形驱动锥齿轮，用于使主动锥齿轮旋转的输入轴机构和用于传递驱动斜面轴的扭矩的传动机构 到卷 每个传动机构包括一个夹在两个主动锥齿轮之间并与之啮合的小直径传动伞齿轮，以及用于将传动锥齿轮转矩传递到一个辊的第一和第二传动轴。 驱动和滚动单元通过联接器联接和分离。 四个定位部分形成在辊单元的内壳体的外周上。 驱动单元的外壳通常为环形，并且在外壳的内周上形成有四个定位部。 当内壳体装配到外壳体中时，内壳体通过定位部件通过止动件和压紧件横向和纵向以及通过线的两个方向定位在外壳体中。

    Rolling mill and rolling-mill train
    8.
    发明授权
    Rolling mill and rolling-mill train 失效
    轧机和轧机列车

    公开(公告)号：US06505491B2

    公开(公告)日：2003-01-14

    申请号：US09782513

    申请日：2001-02-14

    申请人： Shigeharu Ochi ,  Hiroshi Fujiwara ,  Sho Inui ,  Takaaki Toyooka ,  Motoaki Itadani ,  Akira Yorifuji ,  Toshio Onishi ,  Koji Sugano ,  Yasuo Nishida ,  Nobuki Tanaka

    发明人： Shigeharu Ochi ,  Hiroshi Fujiwara ,  Sho Inui ,  Takaaki Toyooka ,  Motoaki Itadani ,  Akira Yorifuji ,  Toshio Onishi ,  Koji Sugano ,  Yasuo Nishida ,  Nobuki Tanaka

    IPC分类号： B21B1310

    CPC分类号： B21B13/103 ,  B21B1/18 ,  B21B17/14

    摘要： This invention provides a rolling mill and a rolling-mill train which are compact. Reducers to be coupled with them can be made compact. The inner surfaces of pipes to be rolled with the rolling mill and the rolling-mill train can be prevented from becoming squarish. The rolling mill comprises a plurality of rolls disposed symmetrically around the pathline of the rolling mill, an annular driving bevel gear of a large diameter for driving and rotating the rolls, an input-shaft mechanism for rotating the driving bevel gear, a plurality of transmission mechanisms disposed at regular intervals along the driving bevel gear, and a housing for holding them. The input-shaft mechanism (i) has an input shaft inserted in the housing from its outside and an input bevel gear of a small diameter mounted on the input shaft and engaging with the driving bevel gear and (ii) is disposed between two adjacent transmission mechanisms. With the input shaft disposed horizontally, the phase angle of the roll unit can be adjusted minutely.

    摘要翻译： 本发明提供一种压实的轧机和轧机机组。 要与之配合的减速机可以做到紧凑。 可以防止用轧机和轧机列车轧制的管的内表面变得方形。 轧机包括对称地设置在轧机的轨迹线上的多个辊，用于驱动和旋转辊的大直径的环形驱动锥齿轮，用于使主动锥齿轮旋转的输入轴机构，多个传动 沿着驱动锥齿轮以规则间隔设置的机构和用于保持它们的壳体。 输入轴机构（i）具有从其外部插入壳体中的输入轴和安装在输入轴上并与驱动锥齿轮啮合的小直径输入锥齿轮，（ii）设置在两个相邻传动 机制 当输入轴水平放置时，辊单元的相位角可以微调。

    Steel pipe having high ductility and high strength and process for production thereof
    9.
    发明授权
    Steel pipe having high ductility and high strength and process for production thereof 有权
    具有高延展性和高强度的钢管及其生产方法

    公开(公告)号：US06331216B1

    公开(公告)日：2001-12-18

    申请号：US09214226

    申请日：1998-12-30

    申请人： Takaaki Toyooka ,  Akira Yorifuji ,  Masanori Nishimori ,  Motoaki Itadani ,  Yuji Hashimoto ,  Takatoshi Okabe ,  Nobuki Tanaka ,  Taro Kanayama ,  Osamu Furukimi ,  Masahiko Morita ,  Takaaki Hira ,  Saiji Matsuoka

    发明人： Takaaki Toyooka ,  Akira Yorifuji ,  Masanori Nishimori ,  Motoaki Itadani ,  Yuji Hashimoto ,  Takatoshi Okabe ,  Nobuki Tanaka ,  Taro Kanayama ,  Osamu Furukimi ,  Masahiko Morita ,  Takaaki Hira ,  Saiji Matsuoka

    IPC分类号： C21D713

    CPC分类号： C21D8/10 ,  C21D2201/00 ,  C21D2211/005

    摘要： The steel pipe has a structure composed mainly of ferrite or ferrite plus pearlite or ferrite plus cementite. The steel pipe is characterized by grain size not greater than 3 &mgr;m, preferably not greater than 1 &mgr;m, elongation greater than 20%, tensile strength (TS:MPa) and elongation (E1:%) whose product is greater than 10000, and percent ductile fracture greater than 95%, preferably 100%, measured by Charpy impact test on an actual pipe at −100° C. The structure is characterized by C: 0.005-0.03%, Si: 0.01-3.0%, Mn: 0.01-2.0%, and Al: 0.001-0.10% on a weight basis, and is composed of ferrite or ferrite and a secondary phase, with ferrite grains being not greater than 3 &mgr;m and the secondary phase having an areal ratio not more than 30%. A steel pipe stock having the above-mentioned composition is heated at a temperature of (Ac1+50° C.) to 400° C. and subsequently reduced at a rolling temperature of (Ac1+50° C.) to 400° C. such that the cumulative reduction of diameter is greater than 20%. The reducing is preferably performed such that at least one of rolling passes reduces the diameter by more than 6% per pass. The steel pipe will have high ductility and high strength and will be superior in toughness and stress corrosion cracking resistance, if the content of C, Si, Mn, and other alloying elements is limited low and reducing is performed at the temperature specified above. The resulting steel pipe has good fatigue resistance and is suitable for use as line pipe.

    摘要翻译： 钢管具有主要由铁素体或铁素体加珠光体或铁素体和渗碳体组成的结构。 钢管的特征在于，其粒径不大于3μm，优选不大于1μm，伸长率大于20％，拉伸强度（TS：MPa）和伸长率（E1：％）大于10000， 延性断裂大于95％，优选100％，通过夏比冲击试验在-100℃的实际管上测量。该结构的特征在于C：0.005-0.03％，Si：0.01-3.0％，Mn：0.01-2.0 ％，Al：0.001-0.10％，由铁素体或铁素体和二次相组成，铁素体晶粒不大于3μm，第二相的面积比不大于30％。 将具有上述组成的钢管坯料在（Ac1 + 50℃）的温度下加热至400℃，随后在（Ac1 + 50℃）的轧制温度下降低至400℃。 使得直径的累积减小大于20％。 优选地进行还原，使得至少一个轧制通道将直径每次通过减少6％以上。 如果C，Si，Mn和其他合金元素的含量低，并且在上述规定的温度下进行还原，则钢管将具有高延展性和高强度，并且在韧性和耐应力腐蚀开裂性方面优异。 所得钢管具有良好的抗疲劳性能，适用于管线管。