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：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。

公开(公告)号：US6041632A

公开(公告)日：2000-03-28

申请号：US149576

申请日：1998-09-08

申请人： Koji Sugano ,  Masahiro Kagawa ,  Toshio Ohnishi ,  Kingo Sawada ,  Yoshinori Sugie ,  Nobuki Tanaka ,  Takaaki Toyooka ,  Motoaki Itadani ,  Yuji Hashimoto ,  Ryoji Kusakabe ,  Kazuo Omura

发明人： Koji Sugano ,  Masahiro Kagawa ,  Toshio Ohnishi ,  Kingo Sawada ,  Yoshinori Sugie ,  Nobuki Tanaka ,  Takaaki Toyooka ,  Motoaki Itadani ,  Yuji Hashimoto ,  Ryoji Kusakabe ,  Kazuo Omura

IPC分类号： B22D17/20 ,  B21B13/02 ,  B21B27/02 ,  B21B27/08 ,  B21B31/04 ,  B21B37/60 ,  B21C37/08 ,  B21C37/083 ,  B22C5/00 ,  B22C5/04 ,  B22C5/08 ,  B22D29/00 ,  B22D31/00 ,  C21D1/53 ,  B21D5/14

CPC分类号： B21B37/60 ,  B21B27/028 ,  B21C37/08 ,  B21C37/083 ,  B22C5/085 ,  B22D29/003 ,  B22D31/002 ,  C21D1/53 ,  B21B13/02 ,  B21B2027/083 ,  B21B31/04

摘要： A forming stand for continuously forming a skelp material into a pipe, by pressure of spaced-apart forming rolls supported by spaced upper and lower shafts, the forming rolls having two portions, with one portion fixedly fitted on one side of its shaft, a sleeve slidably fitted to the other end of the shaft and fixedly secured to the sleeve and slidable with respect to the shaft; a bearing box for supporting one side of the associated shaft; a bearing box supporting the other side of the associated shaft through the sleeve; upper and lower stand supporting frames for supporting both of the bearing boxes to be movable in an axial direction; and supporting columns for supporting the stand supporting frames; the pipe-forming force is continuously measured and the forming operation is adjusted such that the measured value of pipe-forming force does not exceed a predetermined pipe-forming upper limit.

摘要翻译： 一种用于通过由间隔开的上下轴支撑的间隔成形辊的压力连续地形成骨架材料到成形管的成形台，成形辊具有两部分，其一部分固定地安装在其轴的一侧上，套筒 可滑动地装配到轴的另一端并且固定地固定到套筒并相对于轴可滑动; 用于支撑相关轴的一侧的轴承箱; 轴承箱，其通过套筒支撑相关轴的另一侧; 上下支架支撑框架，用于支撑两个轴承箱以在轴向方向上可移动; 支撑架支撑支架; 连续地测量成形力，并且调整成形操作使得成形力的测量值不超过预定的管道形成上限。

公开(公告)号：US06216940B1

公开(公告)日：2001-04-17

申请号：US09506025

申请日：2000-02-17

申请人： Koji Sugano ,  Masahiro Kagawa ,  Toshio Ohnishi ,  Kingo Sawada ,  Yoshinori Sugie ,  Nobuki Tanaka ,  Takaaki Toyooka ,  Motoaki Itadani ,  Yuji Hashimoto ,  Ryoji Kusakabe ,  Kazuo Omura

发明人： Koji Sugano ,  Masahiro Kagawa ,  Toshio Ohnishi ,  Kingo Sawada ,  Yoshinori Sugie ,  Nobuki Tanaka ,  Takaaki Toyooka ,  Motoaki Itadani ,  Yuji Hashimoto ,  Ryoji Kusakabe ,  Kazuo Omura

IPC分类号： B21D3900

CPC分类号： B21B37/60 ,  B21B13/02 ,  B21B27/028 ,  B21B31/04 ,  B21B2027/083 ,  B21C37/08 ,  B21C37/083 ,  B22C5/085 ,  B22D29/003 ,  B22D31/002 ,  C21D1/53

摘要： A forming stand for continuously forming a skelp material into a pipe, by pressure of spaced-apart forming rolls supported by spaced upper and lower shafts, the forming rolls having two portions, with one portion fixedly fitted on one side of its shaft, a sleeve slidably fitted to the other end of the shaft and fixedly secured to the sleeve and slidable with respect to the shaft; a bearing box for supporting one side of the associated shaft; a bearing box supporting the other side of the associated shaft through the sleeve; upper and lower stand supporting frames for supporting both of the bearing boxes to be movable in an axial direction; and supporting columns for supporting the stand supporting frames; the pipe-forming force is continuously measured and the forming operation is adjusted such that the measured value of pipe-forming force does not exceed a predetermined pipe-forming upper limit.

摘要翻译： 一种用于通过由间隔开的上下轴支撑的间隔成形辊的压力连续地形成骨架材料到成形管的成形台，成形辊具有两部分，其一部分固定地安装在其轴的一侧上，套筒 可滑动地装配到轴的另一端并且固定地固定到套筒并相对于轴可滑动; 用于支撑相关轴的一侧的轴承箱; 轴承箱，其通过套筒支撑相关轴的另一侧; 上下支架支撑框架，用于支撑两个轴承箱以在轴向方向上可移动; 支撑架支撑支架; 连续地测量成形力，并且调整成形操作使得成形力的测量值不超过预定的管道形成上限。