公开(公告)号：US20060218985A1

公开(公告)日：2006-10-05

申请号：US10541999

申请日：2004-04-08

申请人： Kazuhito Kenmochi ,  Takuya Nagahama ,  Kei Sakata ,  Koji Sugano ,  Toshio Ohnishi ,  Akira Yorifuji ,  Takaaki Toyooka

发明人： Kazuhito Kenmochi ,  Takuya Nagahama ,  Kei Sakata ,  Koji Sugano ,  Toshio Ohnishi ,  Akira Yorifuji ,  Takaaki Toyooka

IPC分类号： B21C1/26

CPC分类号： B21C1/26 ,  B21C1/30 ,  B21C3/06 ,  B21C3/12 ,  B21J7/145

摘要： There are provided a high dimensional accuracy pipe and a manufacturing method thereof, the pipe being in response to wide requirements of sizes, being manufactured at inexpensive cost, and having a sufficient fatigue strength. The detailed structure thereof is as follows. A push-to-pass process is performed in which, while a plug 1 is being charged in a metal pipe 5, the metal pipe is pushed in a hole provided in a die 2 and is then allowed to pass therethrough. As a result, a high dimensional accuracy pipe can be obtained in which at least one of the deviation of the outer diameter, the deviation of the inner diameter, and the deviation of the thickness in the circumferential direction is 3.0% or less as processed.

摘要翻译： 提供了一种高尺寸精度管及其制造方法，该管是响应于尺寸要求较大的要求，以廉价的成本制造并且具有足够的疲劳强度。 其详细结构如下。 进行一次按压处理，其中当将插头1装入金属管5中时，金属管被推入设置在管芯2中的孔中，然后被允许通过。 结果，可以获得高度尺寸精度的管，其中外径的偏差，内径的偏差和周向厚度的偏差中的至少一个被处理为3.0％以下。

公开(公告)号：US06216511B1

公开(公告)日：2001-04-17

申请号：US09049193

申请日：1998-03-27

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： B21D5128

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 a 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 apparatus.

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，然后通过上述装置使厚壁部分平滑。

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。

公开(公告)号：US5942132A

公开(公告)日：1999-08-24

申请号：US872427

申请日：1997-06-10

申请人： Takaaki Toyooka ,  Motoaki Itadani ,  Akira Yorifuji ,  Yuji Hashimoto ,  Toshio Ohnishi ,  Nobuki Tanaka ,  Yoshinori Sugie ,  Koji Sugano ,  Toshiaki Amagasa

发明人： Takaaki Toyooka ,  Motoaki Itadani ,  Akira Yorifuji ,  Yuji Hashimoto ,  Toshio Ohnishi ,  Nobuki Tanaka ,  Yoshinori Sugie ,  Koji Sugano ,  Toshiaki Amagasa

IPC分类号： B21B17/04 ,  B21C37/08 ,  B23K13/02 ,  B23K13/01

CPC分类号： B21C37/0811

摘要： A method of producing steel pipes is provided which comprises the steps of providing a steel strip, processing the steel strip into a preheated open pipe, preheating the open pipe at its two opposite longitudinal edges at a temperature higher than about the Curie point, heating the open pipe at the two opposite edges at a temperature higher than about 1,300.degree. C. but lower than the melting point of the steel strip, pressure welding the resultant open pipe with a squeeze roll to thereby form a steel pipe, smoothing the steel pipe at its thick-walled portion formed on an outer surface of the welded seam, and subsequently cutting or winding the resulting steel pipe. An apparatus adapted to form the steel pipes is also provided.

摘要翻译： 提供了一种生产钢管的方法，其包括以下步骤：提供钢带，将钢带加工成预热的开放管，在高于约居里点的温度下在其两个相对的纵向边缘处预热开放管，加热 在高于约1300℃但低于钢带的熔点的两个相对边缘处开放管，用挤压辊对所得开管进行压力焊接，从而形成钢管，使钢管平滑化 其厚壁部分形成在焊缝的外表面上，随后切割或卷绕所得到的钢管。 还提供了一种适于形成钢管的设备。

公开(公告)号：US06682829B2

公开(公告)日：2004-01-27

申请号：US10160820

申请日：2002-05-31

申请人： Takaaki Toyooka ,  Masatoshi Aratani ,  Yoshikazu Kawabata ,  Yuji Hashimoto ,  Akira Yorifuji ,  Takatoshi Okabe ,  Takuya Nagahama ,  Mitsuo Kimura

发明人： Takaaki Toyooka ,  Masatoshi Aratani ,  Yoshikazu Kawabata ,  Yuji Hashimoto ,  Akira Yorifuji ,  Takatoshi Okabe ,  Takuya Nagahama ,  Mitsuo Kimura

IPC分类号： B32B1518

CPC分类号： C22C38/02 ,  C21D8/10 ,  C22C38/06 ,  C22C38/28 ,  C22C38/38 ,  Y10T428/12965

摘要： A welded steel pipe is formed by heating or soaking an untreated welded steel pipe having a steel composition comprising, on the basis of mass percent: about 0.05% to about 0.3% C; about 2.0% or less of Si; more than about 1.5% to about 5.0% Mn; about 0.1% or less of P; about 0.01% or less of S; about 0.1% or less of Cr; about 0.1% or less of Al; about 0.1% or less of Nb; about 0.3% or less of Ti; and about 0.01% or less of N; and by diameter-reduction-rolling the treated steel pipe at a accumulated diameter reduction rate of at least about 35% and a finish rolling temperature of about 500° C. to about 900° C. The welded steel pipe exhibits excellent hydroformability, i.e., has a tensile strength of about 780 MPa or more and a n×r product of at least about 0.15. The treated steel pipe is preferably diameter-reduction-rolled at a accumulated diameter reduction rate of at least about 20% below the Ar3 transformation point.

摘要翻译： 焊接钢管是通过加热或浸渍具有钢质组成的未经处理的焊接钢管形成的，所述焊接钢管基于质量百分比：约0.05％至约0.3％C; 约2.0％以下的Si; 大于约1.5％至约5.0％的Mn; 约0.1％以下的P; 约0.01％以下的S; 约0.1％以下的Cr; 约0.1％以下的Al; 约0.1％以下的Nb; 约0.3％以下的Ti; 和约0.01％以下的N; 并且以约至少约35％的累积直径减小率和约500℃至约900℃的精轧温度对经处理的钢管进行直径缩小轧制。焊接钢管显示出优异的加氢性能， 具有约780MPa或更高的拉伸强度和至少约0.15的nxr产品。 经处理的钢管优选以低于Ar 3相变点至少约20％的累积直径减小率进行直径减小轧制。

公开(公告)号：US06749954B2

公开(公告)日：2004-06-15

申请号：US10161407

申请日：2002-05-31

申请人： Takaaki Toyooka ,  Masatoshi Aratani ,  Yoshikazu Kawabata ,  Yuji Hashimoto ,  Akira Yorifuji ,  Takatoshi Okabe ,  Takuya Nagahama ,  Mitsuo Kimura

发明人： Takaaki Toyooka ,  Masatoshi Aratani ,  Yoshikazu Kawabata ,  Yuji Hashimoto ,  Akira Yorifuji ,  Takatoshi Okabe ,  Takuya Nagahama ,  Mitsuo Kimura

IPC分类号： B32B1518

CPC分类号： B21D26/047 ,  B21B3/02 ,  B21B17/14 ,  B21B45/004 ,  B21C37/06 ,  B21D26/039 ,  B21D26/043 ,  C21D8/10 ,  Y10T428/12965

摘要： A welded steel pipe is formed by heating or soaking an untreated welded steel pipe having a steel composition containing, on the basis of mass percent: about 0.03% to about 0.2% C, about 2.0% or less of Si, not less than about 1.0% to about 1.5% Mn, about 0.1% or less of P, about 0.01% or less of S, about 1.0% or less of Cr, about 0.1% or less of Al, about 0.1% or less of Nb, about 0.1% or less of Ti, about 0.1% or less of V, and about 0.01% or less of N; and by reduction-rolling the treated steel pipe at a cumulative reduction rate of at least about 35% and a final rolling temperature of about 500° C. to about 900° C. The welded steel pipe exhibits excellent hydroformability, i.e., has a tensile strength of at least about 590 MPa and an n×r product of at least about 0.22. The treated steel pipe is preferably reduction-rolled at a cumulative reduction rate of at least about 20% below the Ar3 transformation point.

摘要翻译： 焊接钢管是通过加热或浸渍具有钢质组成的未经处理的焊接钢管形成的，所述钢组合物基于质量百分比：约0.03％至约0.2％C，约2.0％或更少的Si，不小于约1.0 至约1.5％的Mn，约0.1％或更少的P，约0.01％或更少的S，约1.0％或更少的Cr，约0.1％或更少的Al，约0.1％或更少的Nb，约0.1％ 或更少的Ti，约0.1％或更少的V和约0.01％或更少的N; 并且通过将处理后的钢管以至少约35％的累积压下率和约500℃至约900℃的最终轧制温度进行还原轧制。焊接钢管表现出优异的加氢成形性，即具有拉伸强度 至少约590MPa的强度和至少约0.22的nxr产物。 经处理的钢管优选以低于Ar 3相变点至少约20％的累积压缩率进行还原轧制。

公开(公告)号：US06723453B2

公开(公告)日：2004-04-20

申请号：US10160798

申请日：2002-05-31

申请人： Takaaki Toyooka ,  Masatoshi Aratani ,  Yoshikazu Kawabata ,  Yuji Hashimoto ,  Akira Yorifuji ,  Takatoshi Okabe ,  Takuya Nagahama ,  Mitsuo Kimura

发明人： Takaaki Toyooka ,  Masatoshi Aratani ,  Yoshikazu Kawabata ,  Yuji Hashimoto ,  Akira Yorifuji ,  Takatoshi Okabe ,  Takuya Nagahama ,  Mitsuo Kimura

IPC分类号： B32B1518

CPC分类号： C21D8/10 ,  C22C38/04 ,  Y10T428/12965

摘要： A welded steel pipe is formed by heating or soaking an untreated welded steel pipe having a steel composition containing, on the basis of mass percent: about 0.05% to about 0.2% C; about 0.2% or less of Si; about 1.5% or less of Mn; about 0.1% or less of P; about 0.01% or less of S; about 0.1% or less of Al; and about 0.01% or less of N; and by reduction-rolling the treated steel pipe at a cumulative reduction rate of at least about 35% and a final rolling temperature of about 500° C. to about 900° C. The welded steel pipe exhibits excellent hydroformability, i.e., has a tensile strength of at least about 400 MPa and an n×r product of at least about 0.22. The treated steel pipe is preferably reduction-rolled at a cumulative reduction rate of at least about 20% below the Ar3 transformation point. The welded steel pipe is suitable for forming structural components.

摘要翻译： 焊接钢管是通过加热或浸渍含有基于质量％：约0.05％至约0.2％C的钢组合物的未处理焊接钢管形成的; 约0.2％以下的Si; 约1.5％以下的Mn; 约0.1％以下的P; 约0.01％以下的S; 约0.1％以下的Al; 和约0.01％以下的N; 并且通过将处理后的钢管以至少约35％的累积压下率和约500℃至约900℃的最终轧制温度进行还原轧制。焊接钢管表现出优异的加氢成形性，即具有拉伸强度 至少约400MPa的强度和至少约0.22的nxr产物。 经处理的钢管优选以低于Ar 3相变点至少约20％的累积压缩率进行还原轧制。 焊接钢管适用于形成结构件。

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。

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。

公开(公告)号：US6006789A

公开(公告)日：1999-12-28

申请号：US776664

申请日：1997-01-31

申请人： Takaaki Toyooka ,  Akira Yorifuji ,  Motoaki Itadani ,  Toshio Ohnishi ,  Yuji Hashimoto ,  Nobuki Tanaka ,  Hiroyuki Matsui

发明人： Takaaki Toyooka ,  Akira Yorifuji ,  Motoaki Itadani ,  Toshio Ohnishi ,  Yuji Hashimoto ,  Nobuki Tanaka ,  Hiroyuki Matsui

IPC分类号： B21B17/14 ,  B21B37/00 ,  B21B37/74 ,  B21B37/78 ,  B21B45/00 ,  B21B45/02 ,  B21C37/06 ,  B21C37/08 ,  B21C37/30 ,  C21D8/10 ,  C21D9/08 ,  F16L9/00 ,  B23K17/14

CPC分类号： C21D8/10 ,  B21B37/74 ,  B21C37/08 ,  B21C37/0807 ,  B21C37/30 ,  B21B17/14 ,  B21B2045/0227 ,  B21B37/78 ,  B21B45/004

摘要： A steel mother pipe obtained by a solid phase butt-welding pipe-making process or a welding pipe-making process is reduced by heating the pipe prior to the reduction at a temperature exceeding 100.degree. C. and lower than 800.degree. C. wherein the temperature of the steel pipe being reduced is controlled within a defined range. The temperature difference along the circumferential direction of the mother pipe at the inlet side of a reducer is within a defined range, and the temperature of the steel pipe at interstand positions of the reducer is also controlled. By virtue of this control, the reduction becomes possible at low load while suppressing work hardening without degrading surface properties. The resultant product pipe has a dimensional accuracy maintained at a high level.

摘要翻译： PCT No.PCT / JP96 / 02334 Sec。 371日期1997年1月31日 102（e）日期1997年1月31日PCT PCT 1996年8月21日PCT公布。 公开号WO97 / 07906 日期1997年3月6日通过在超过100℃且低于800℃的温度下通过加热管道，通过固相对接制管工艺或焊接制管工艺获得的钢母管被减少 ℃，其中钢管的温度降低控制在规定的范围内。 在减速机的入口侧的母管的周向的温差在规定的范围内，也可以控制还原器的夹板位置处的钢管的温度。 通过该控制，能够在低负荷的同时抑制加工硬化而不会降低表面性能。 所得产品管具有维持在高水平的尺寸精度。