公开(公告)号：US08528378B2

公开(公告)日：2013-09-10

申请号：US13246086

申请日：2011-09-27

申请人： Chihiro Hayashi

发明人： Chihiro Hayashi

IPC分类号： B21B17/10

CPC分类号： B21B21/045 ,  B21B21/065

摘要： A method for producing an ultrathin-wall seamless metal tube, which employs a cold pilger mill of mechatronics drive type including a mechanism to give a feed and a turn angle to a tube material, utilizes a roll having a tapered groove whose diameter gradually increases or gradually decreases from an engaging entry side to a finishing exit side of a pair of rolls, and a tapered mandrel whose diameter similarly gradually increases from the engaging entry side to the finishing exit side to elongate the tube material by reducing a wall thickness while expanding a mid-wall diameter of the tube material. By giving amounts of a turn angle and/or a feed equivalent or nearly equivalent to the forward stroke to the tube material immediately before the start of a backward stroke, it is possible to achieve a further increase in the reduction-rate of rolling, a further reduction of wall thickness, and improvement of dimensional accuracy of the product.

摘要翻译： 一种用于生产超薄壁无缝金属管的方法，其采用机电驱动型冷轧机，其包括用于给予管材的进给和转角的机构，利用其直径逐渐增加的锥形槽或 从一对辊的接合进入侧到精加工出口侧逐渐减小，并且锥形心轴的直径从接合进入侧逐渐增加到精加工出口侧，从而通过在膨胀时降低壁厚来延长管材料 管材中间壁直径。 通过在立即开始向后冲程之前向管材提供相当于或相当于前进行程的转弯角度和/或进给量的量，可以进一步提高压下率， 进一步减小壁厚，提高产品尺寸精度。

公开(公告)号：US20120139236A1

公开(公告)日：2012-06-07

申请号：US13307404

申请日：2011-11-30

申请人： Michael R. Novitsky ,  Earl Haas ,  Charles E. Wilk, JR. ,  Scott D. Madara ,  Anthony J. Cuvo ,  Douglas R. Dole

发明人： Michael R. Novitsky ,  Earl Haas ,  Charles E. Wilk, JR. ,  Scott D. Madara ,  Anthony J. Cuvo ,  Douglas R. Dole

IPC分类号： F16L21/00 ,  B21B17/10 ,  B21D41/00 ,  F16L9/02

CPC分类号： F16L21/06 ,  B21B23/00 ,  B21D15/06 ,  B21D17/04 ,  B21D22/16 ,  B21D39/046 ,  B21D41/00 ,  B21D41/023 ,  F16L17/025 ,  F16L17/04 ,  F16L21/022 ,  F16L23/08 ,  F16L25/12

摘要： A pipe element has a circumferential shoulder at one end. The shoulder has an outer diameter greater than the outer diameter of the pipe element. A groove is positioned adjacent to the shoulder. The groove has a floor surface with an outer diameter less than the outer diameter of the pipe element. A bead is positioned contiguous with the groove. The bead has an apex with an outer diameter greater than the outer diameter of the pipe element. A combination of roller tools is used to cold work pipe elements and impart a desired shape to the sidewall in one method of manufacture. In another method, a spin forming tool is revolved in an orbit of increasing diameter within the pipe element captured within a die.

摘要翻译： 管件在一端具有周向肩部。 肩部的外径大于管元件的外径。 凹槽位于肩部附近。 槽具有外径小于管元件的外径的地板表面。 珠子与凹槽相邻定位。 胎圈具有外径大于管元件的外径的顶点。 滚子工具的组合被用于冷加工管件，并且在一种制造方法中使侧壁具有所需的形状。 在另一种方法中，旋转成形工具在捕获在模具内的管道元件内的直径增加的轨道中旋转。

公开(公告)号：US07992417B2

公开(公告)日：2011-08-09

申请号：US12253760

申请日：2008-10-17

申请人： Chihiro Hayashi

发明人： Chihiro Hayashi

IPC分类号： B21B17/10

CPC分类号： B21B21/005 ,  B21B21/02 ,  B21B2261/04 ,  B21B2261/08 ,  B21B2267/06 ,  B21B2267/20 ,  B21C37/30

摘要： An aspect of the present invention provides a method for producing an ultra thin wall metallic tube by a cold rolling method with significant wall thickness reduction. In a method for producing the metallic tube with a cold pilger mill, a wall thickness is reduced to perform elongation while a wall thickness center diameter is expanded using a pair of rolls, which has a tapered groove die whose diameter is gradually expanded or reduced from an engaging inlet side of the roll toward a finishing outlet side thereof, and a tapered mandrel bar, whose diameter is gradually expanded from an engaging inlet side of the tapered mandrel bar toward a finishing outlet side thereof.

摘要翻译： 本发明的一个方面提供了一种通过冷轧方法生产超薄壁金属管的方法，其具有显着的壁厚减小。 在使用冷吹炼机制造金属管的方法中，使用一对辊将壁厚度减小，同时延伸壁厚中心直径，该直径从直径逐渐扩大或缩小的锥形槽模 辊的接合入口侧朝向精加工出口侧，以及锥形芯棒，其直径从锥形芯棒的接合入口侧朝向其精加工出口侧逐渐膨胀。

公开(公告)号：US20090064749A1

公开(公告)日：2009-03-12

申请号：US12247923

申请日：2008-10-08

申请人： YASUYOSHI HIDAKA ,  Satoshi Matsumoto ,  Toshihide Ono ,  Kouji Nakaike ,  Sumio Iida ,  Hiroshi Nogami

发明人： YASUYOSHI HIDAKA ,  Satoshi Matsumoto ,  Toshihide Ono ,  Kouji Nakaike ,  Sumio Iida ,  Hiroshi Nogami

IPC分类号： B21B17/10

CPC分类号： B21B23/00 ,  B21B3/02 ,  B21B17/10 ,  B21B17/14 ,  B21B19/04 ,  B21B25/04 ,  B21B45/004 ,  C21D1/76 ,  C21D1/767 ,  C21D3/04 ,  C21D8/10 ,  C21D9/08 ,  C22C38/02 ,  C22C38/44 ,  C22C38/58

摘要： A process for stainless-steel pipe production which comprises piercing rolling a raw material stainless steel containing, by mass, Cr: 10-30%, to give a hollow shell, elongating rolling the hollow shell using a mandrel bar, together with a graphite-free lubricant, to give a finishing rolling blank pipe and heating the blank pipe in a reheating furnace and subjecting the same to finishing rolling by sizing rolling to produce a hot-finished pipe, and then subjecting this pipe as a mother pipe to cold working to produce a stainless-steel pipe. In the reheating furnace, the finishing rolling blank pipe is heated to 1000° C. or more and subjected to heating in which an oxidizing gas is blown into the pipe inside, whereby a stainless-steel pipe which is inhibited from forming a carburized layer in the pipe inner surface can be produced. When the finishing rolling by sizing rolling to give a cold working mother pipe is carried out by stretch reducer rolling at 860-1050° C., an annealing heat treatment of the mother pipe for cold working can be omitted. Thus, a stainless-steel pipe having excellent surface quality can be efficiently produced.

摘要翻译： 一种不锈钢管制造方法，其特征在于，将包含Cr：10〜30％的原料不锈钢进行穿孔轧制，得到中空壳，使用芯棒将中空壳拉伸，并与石墨 无需润滑剂，得到精轧坯管，再加热炉内的坯管加热，通过定径轧制进行精轧，制成热轧管，然后将该管作为母管进行冷加工 生产不锈钢管。 在再热炉中，将精轧坯管加热至1000℃以上，进行向内部吹入氧化气体的加热，由此抑制渗碳层形成的不锈钢管 可以制造管内表面。 当通过在860-1050℃下的拉伸减速机轧制进行通过定径轧制得到冷加工母管的精轧时，可以省略用于冷加工的母管的退火热处理。 因此，可以有效地制造具有优异表面质量的不锈钢管。

公开(公告)号：US20080011037A1

公开(公告)日：2008-01-17

申请号：US11790875

申请日：2007-04-27

申请人： Kenichi Beppu

发明人： Kenichi Beppu

IPC分类号： B21B17/10

CPC分类号： B21C37/30 ,  B21B17/14 ,  B21B19/04 ,  B21B23/00 ,  B21B45/004 ,  B21C37/06 ,  C21D8/10

摘要： A process for manufacturing a seamless tube which can effectively suppress thickness deviations which are apt to occur in thin-walled seamless tubes is provided. A billet which has been soaked in a beating furnace at a given temperature for a given length of time is subjected to piercing and elongation rolling to form a mother tube, which is then soaked in a reheating furnace at a given temperature for a given length of time and then subjected to sizing to produce a seamless tube with a wall thickness of at most 4 mm. The wall thickness of the tube after sizing is at most 4 mm, the soaking time at the given temperature in the heating furnace is in the range of [billet diameter (mm)×(from 0.14-0.35)] minutes, and the soaking time at the given temperature in the reheating furnace is in the range of [mother tube wall thickness (mm)×(from 3.0-10.0)] minutes.

摘要翻译： 提供一种可以有效地抑制在薄壁无缝管中易发生的厚度偏差的无缝管的制造方法。 将在已经在给定温度下在打浆炉中浸泡一定长度时间的坯料进行穿孔和伸长轧制以形成母管，然后将母管在给定温度下在再加热炉中浸泡一定长度的 时间，然后进行上浆以产生壁厚最大为4mm的无缝管。 上浆后管的壁厚最大为4mm，加热炉中在给定温度下的均热时间在[坯料直径（mm）×（0.14-0.35）]分钟的范围内，均热时间 在再加热炉中的给定温度下，在[母管壁厚（mm）×（3.0-10.0）]分钟的范围内。

公开(公告)号：US06158262A

公开(公告)日：2000-12-12

申请号：US546185

申请日：2000-04-10

申请人： Hisao Goto ,  Masaomi Nakamura

发明人： Hisao Goto ,  Masaomi Nakamura

IPC分类号： B21B19/04 ,  B21B39/16 ,  B21B17/10 ,  B21B39/20

CPC分类号： B21B19/04 ,  B21B39/165

摘要： A piercing mill and cannon exchange method therefor which can automate exchange of a cannon and can cope with flexible production of a variety of differently-sized seamless steel tubes in small quantities. The piercing mill including means for pivoting a cannon holder which holds a cannon and means for sliding the cannon holder along a pass line, through combined above-mentioned means, the cannon holder is pivoted so as to come into alignment with the pass line, is slid along the pass line, and is clamped at a predetermined location. The cannon exchange is characterized in that a cannon holder which retains the cannon in the direction perpendicular to the pass line is pivoted so as to come into alignment with the pass line, is slid along the pass line, and is then clamped to the main frame of the piercing mill. Therefore, it become possible to automate exchange of a cannon in accordance with a changeover and to considerably reduce working hours.

摘要翻译： 一种能够自动更换大炮的穿孔机和大炮交换方法，可以应付少量不同尺寸的不同尺寸的无缝钢管的灵活生产。 穿孔机包括用于枢转保持大炮的大炮支架和用于沿着通行线滑动炮架的装置，通过上述装置，大炮支架枢转以与通行线对齐，是 沿着通行线滑动，并被夹紧在预定位置。 大炮交换机的特征在于，将炮在垂直于通行线的方向上保持的大炮支架被枢转以与通行线对准，沿着通行线滑动，然后被夹紧到主框架 的穿孔机。 因此，可以根据切换自动更换大炮并大大减少工作时间。

公开(公告)号：US5953947A

公开(公告)日：1999-09-21

申请号：US191675

申请日：1998-11-13

申请人： Erwin Klein

发明人： Erwin Klein

IPC分类号： B21D53/28 ,  B21H5/02 ,  B21H7/18 ,  B21D9/08 ,  B21B17/10

CPC分类号： B21D53/28 ,  B21H5/02 ,  B21H7/187 ,  Y10T29/49471

摘要： Hollow cylindrical blanks of tubular stock are transformed into finished work pieces (3) in a single work stroke with a profiling tool (7) equipped with profiling rollers (30) in one tool section (8) and a die matrix (15) in another tool section (6). The two tool sections (6, 8) are coaxially movable relative to each other, for example by a press. Each profiling roller in the one tool section is rotatably mounted in a chamber and all rollers (30) are positioned circularly around a central longitudinal tool axis (34) so that a central plane of each roller extends substantially radially relative to the tool axis. The die matrix (15) in the other tool section (6) is supported on a central mandrel or arbor (14) that also supports the blank. The die matrix (15) has in its outer surface a plurality of grooves (15A) and ridges (15B) that cooperate with grooves and ridges in the profiling rollers.

公开(公告)号：US4455849A

公开(公告)日：1984-06-26

申请号：US255482

申请日：1981-04-20

申请人： Shigeru Uchida ,  Kazuo Watanabe ,  Kousaku Ozawa ,  Minoru Kawaharada

发明人： Shigeru Uchida ,  Kazuo Watanabe ,  Kousaku Ozawa ,  Minoru Kawaharada

IPC分类号： B21B17/00 ,  B21B17/08 ,  B21B17/10

CPC分类号： B21B17/08

摘要： In a press-rolling process for producing a metal tubular product, which comprises a pipe-forming procedure in which a square metal billet is fed into a rolling mill which consists of a pair of pressing rolls which have semi-circular grooves forming circular shape and which is provided with a plug held in the center line of the circular shape, according to the present invention, the press-rolling process is characterized in that a cavity is formed in the center portion of the forward surface of the billet before the pipe-forming procedure, the diameter of the cavity corresponding to 70% or more but less than 100% of the diameter of the plug and the volume of the cavity being equal to or more than the volume of a portion of the plug located in the inserting side of the billet from the axial center of the rolling mill.

摘要翻译： 在一种用于生产金属管状产品的压制方法中，其包括一种成形方法，其中方形金属坯料被供给到由具有形成圆形形状的半圆形槽的一对加压辊组成的轧机中， 其具有保持在圆形中心线上的塞子，根据本发明，压制方法的特征在于，在管状管坯之前的坯料的前表面的中心部分中形成有空腔， 形成过程中，空腔的直径对应于塞子的直径的70％以上但小于100％，并且空腔的体积等于或大于位于插入侧的插头的一部分的体积 的坯料从轧机的轴心。

公开(公告)号：US4009610A

公开(公告)日：1977-03-01

申请号：US681825

申请日：1976-04-30

申请人： Manfred Hien ,  Paul Schmitt

发明人： Manfred Hien ,  Paul Schmitt

IPC分类号： B21B17/00 ,  B21B17/06 ,  B21B17/12 ,  B21B31/28 ,  B21B31/32 ,  B21B17/10 ,  B21B25/02

CPC分类号： B21B31/28 ,  B21B17/06

摘要： The upper one of a pair of grooved rolls is mounted on a carrier which is hydraulically biased in up direction but held down by a carriage acting as a lock and being pivotally suspended from a crossbeam of the roll stand. A hydraulic drive can retract the carriage laterally permitting the carrier to yield in up direction for exchanging the plug.

摘要翻译： 一对开槽辊中的上部一个安装在一个载体上，该载体在向上方向上被液压偏置，但是被作为锁定的滑架保持下来并且从辊架的横梁枢转地悬挂。 液压驱动器可以横向收缩托架，允许托架在向上方向上产生更换插头。

公开(公告)号：US3930394A

公开(公告)日：1976-01-06

申请号：US490865

申请日：1974-07-22

申请人： Pavel Ivanovich Orro ,  Nikolai Grigorievich Kovalevsky ,  Alexandr Ivanovich Lobanov ,  Andrei Mikhailovich Arkhangelsky ,  Valentin Anatolievich Makarov ,  Jury Georgievich Goreslavets ,  Nikolai Konstantinovich Erokhov ,  Georgy Iosifovich Khaustov ,  Ivan Mikhailovich Obukh-Shvets ,  Alexandr Davydovich Vereschagin

发明人： Pavel Ivanovich Orro ,  Nikolai Grigorievich Kovalevsky ,  Alexandr Ivanovich Lobanov ,  Andrei Mikhailovich Arkhangelsky ,  Valentin Anatolievich Makarov ,  Jury Georgievich Goreslavets ,  Nikolai Konstantinovich Erokhov ,  Georgy Iosifovich Khaustov ,  Ivan Mikhailovich Obukh-Shvets ,  Alexandr Davydovich Vereschagin

IPC分类号： B21C45/00 ,  B21B17/10

CPC分类号： B21C45/00

摘要： A mill is disclosed, said mill comprising a plug head for plugging tubes, one pulling device adapted to draw a tube with a plug through the plug head, a gear for taking tubes off the plug mounted in the rear portion of the pulling device and composed of power cylinders secured on the pulling device at an acute angle to a plane passing through guides of the pulling device with the rods of the power cylinders carrying jaws for gripping the tube being plugged, the jaws being attached to the rods, and two pockets wherein the tubes and plugs are placed after the tubes have been taken off the plugs. The invention is intended for providing a mill featuring an improved production rate with the ensuing augmentation of the production of a drawing mill, and having smaller overall dimensions.

摘要翻译： 公开了一种磨机，所述磨机包括用于堵塞管的塞头，一个牵引装置，适于通过塞头抽出带有塞子的管;齿轮，用于从安装在牵引装置后部的塞子上取出管，并组成 动力缸以与通过牵引装置的引导件的平面成锐角固定在牵引装置上，动力缸的杆承载用于夹持被堵塞的管子的动力缸的杆，钳口附接到杆和两个袋，其中 在管子从插头上取下之后放置管子和塞子。 本发明旨在提供一种具有改进的生产率的轧机，随后增加了制造的轧机，并且具有较小的总体尺寸。