EP0582562A1 - Dispositif pour le formage en continu d'un tube métallique - Google Patents

Dispositif pour le formage en continu d'un tube métallique Download PDF

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Publication number
EP0582562A1
EP0582562A1 EP93890148A EP93890148A EP0582562A1 EP 0582562 A1 EP0582562 A1 EP 0582562A1 EP 93890148 A EP93890148 A EP 93890148A EP 93890148 A EP93890148 A EP 93890148A EP 0582562 A1 EP0582562 A1 EP 0582562A1
Authority
EP
European Patent Office
Prior art keywords
rollers
tube
axis
roller
shaping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93890148A
Other languages
German (de)
English (en)
Other versions
EP0582562B1 (fr
Inventor
Karl Dipl.-Ing. Steinmair
Erwin Ing. Aigner
Gert Dipl.-Ing. Kitzinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Primetals Technologies Austria GmbH
Original Assignee
Voest Alpine Industrienlagenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voest Alpine Industrienlagenbau GmbH filed Critical Voest Alpine Industrienlagenbau GmbH
Publication of EP0582562A1 publication Critical patent/EP0582562A1/fr
Application granted granted Critical
Publication of EP0582562B1 publication Critical patent/EP0582562B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D15/00—Corrugating tubes
    • B21D15/02—Corrugating tubes longitudinally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/14—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling without mandrel, e.g. stretch-reducing mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/155—Making tubes with non circular section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/18—Adjusting or positioning rolls by moving rolls axially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/24—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/30—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by wedges or their equivalent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/02—Drives for metal-rolling mills, e.g. hydraulic drives for continuously-operating mills

Definitions

  • the invention relates to a device for the continuous forming of a metallic tube with the aid of forming rollers enclosing the tube and opposite each other in pairs with respect to the tube axis, the axes of which lie in a common plane perpendicular to the tube axis and which are each pivotably mounted about a pivot axis parallel to the tube axis are, wherein the rolling contour defining profiles of the form rollers have a larger radius of curvature than the associated peripheral portion of the incoming pipe.
  • FR-B 1 267 303 In order to be able to continuously shape a round tube into a rectangular tube in several deformation steps, it is known (FR-B 1 267 303) to provide a plurality of forming stands in succession in a rolling line, each consisting of four shaping rollers lying opposite one another, the profiles of which essentially one form a closed rolling contour. Since the radius of curvature of the roller profiles and thus the associated sections of the rolling contour is greater than the radius of curvature of the corresponding peripheral section of the pipe entering the respective stand, the pipe is gradually flattened in the successive stands in the peripheral area of the later flat walls until the final rectangular shape is reached .
  • a disadvantage of these forming stands is that, due to the fact that the forming rolls form a closed rolling contour in the circumferential direction, a change in the size of the rolling contour and thus an adaptation to different pipe diameters is only possible if the forming rolls are replaced by shaped rolls with a correspondingly changed profile will.
  • the associated retrofitting of the forming stands not only requires a comparatively large amount of work, but also requires the entire forming system to be shut down.
  • a forming device has become known (US Pat. No. 3,347,078), in which the forming rollers lying opposite one another in pairs form eccentric profiles, so that the forming rollers in the region of the end face gradually decrease due to the diameter that gradually decreases from one end to the other can be advanced with the largest diameter against the subsequent, perpendicularly standing form roller, because the end face with the largest diameter of one roller comes to lie in the region of the end face with the smallest diameter of the other roller and therefore the profiles of the individual who determine the rolling contour Reach over the form rollers under a corresponding reduction in the rolling contour.
  • each form roller must be mounted in the frame so that it can be adjusted radially with respect to the tube to be formed and at the same time in the direction of the roller axis. Adjusting the form rollers to adapt to different pipe diameters, however, requires the rolling contour to be rotated about the pipe axis due to the eccentric profile of each form roll. If no twisting of the tube is to be accepted during its re-formation, the form rollers must be pivoted in opposite directions about the tube axis, which can be achieved by a rotatable mounting of the support frame receiving the form rollers.
  • the invention is therefore based on the object of a device for continuous Forming a metallic tube of the type described above to improve so that an adaptation of the rolling contour to the respective tube diameter is possible without changing the form rollers and without having to accept the disadvantages of form rollers with eccentric profiles.
  • the invention achieves the stated object in that the pivot axes for the form rollers, which form a profile that is symmetrical with respect to their central plane, pass through the region of the center of curvature of the associated rolling contour section or have a distance therefrom in the direction of the roller axis.
  • the roll contour section determined by the roll profile does not change because the form roll is displaced along its profile in the plane perpendicular to the pipe axis. Only the profile lengths effective to form the rolled contour sections change, which is an essential prerequisite for simple adaptation to different pipe diameters.
  • the rolling contour must naturally be sufficiently encompassed by the form rollers in order to ensure the desired rolling result.
  • form rollers which overlap one another are preferably used to determine the rolling contour.
  • the shaping rollers can form, at least on one end face, a recess which is coaxial with the roller axis for receiving the peripheral edge of the respective adjacent shaping roller which engages behind their profile in the event of a mutual displacement. Because of this recess, two form rollers can each be pivoted about the center of curvature of the associated roller contour sections until the outer peripheral edge of one form roller engages in the recess of the other form roller and the two form rollers join overlap.
  • the form rollers overlapping each other when swiveling cannot form a closed rolling contour, but sufficient contact of the form rollers with the pipe is ensured in order to ensure trouble-free reshaping of the pipe.
  • the radial displacement of the form rollers required with the pivoting of the form rollers around the center of curvature of the associated rolling contour section can be ensured by a radial adjustment of the form rollers with respect to the tube.
  • a separate displacement guide is not absolutely necessary if the pivot axes are at a distance from the center of curvature of the associated roller contour section in the direction of the roller axis.
  • a pivoting of the shaping rollers about such a pivot axis requires that the center of curvature of the rolling contour section determined by the roller profile is also displaced along a circular path, namely radially due to the selected direction of the distance, so that with this pivoting a radial displacement of the shaping rollers and thus of the rolling contour sections connected is. Because of the limited swivel angle and the comparatively low arc height of the displacement path of the center of curvature of the rolling contour section, the change in inclination of the rolling contour sections associated with the displacement of the center of curvature in the direction of the roller axis can be neglected, since it does not have any influence on the rolling result.
  • the swivel adjustment of the form rollers can be used to Radial displacement of the form rollers required to adapt to different pipe diameters can be achieved without additional radial drive.
  • the shaping rollers can advantageously be mounted on slides adjustable along circular arc guides with the swiveling axis of the respective shaping roller as an axis, the displacement of which on the circular arc guide brings about the desired pivoting adjustment of the shaping rollers.
  • the circular arc guides can be provided on slides which can be moved radially with respect to the tube. The adjustment of these slides allows, for example, an adaptation of the rolling contour to different rectangular shapes.
  • the corresponding slides of the paired opposing shaping rollers can be adjusted together.
  • Particularly simple control relationships result in this context if the corresponding slides of the pair of opposing forming rollers are drive-connected and adjustable via a common drive, which avoids the synchronization controls that would otherwise be required.
  • the forming system consists of a calibration stand 1 for the incoming round tube, two forming stands 2 following the calibration stand 1 with form rollers 3, the profile of which has a radius of curvature that is greater than the radius of curvature of the associated circumferential section in FIG the respective scaffold is incoming pipe, and from a calibration scaffold 4 for the end pipe, which is guided after the calibration scaffold 4 through two straightening scaffolds 5.
  • the form rolls 6 of the calibration stand 4 are equipped with a straight profile.
  • the individual stands are driven by a motor 7 and individual distributor gears 8, from which the drive for the form rollers is branched off. Due to this arrangement, there is a usual stepwise deformation of the round tube, as indicated in FIGS.
  • the pipe 9 emerges from the calibration rolls 10 of the calibration stand 1 with a predetermined circular cross section corresponding to FIG. 7, in order to be gradually flattened in the forming stands 2 in the area of the later side walls.
  • Fig. 8 shows one of these stages, wherein the mutually opposite pairs of form rollers 3 each have a profile 11 in the form of a circular arc symmetrical with respect to the center plane of the form rollers 3, the radius of which is larger than the profile radius of the form rollers of the upstream stand, so that a rolling contour corresponding to FIG. 8 results.
  • the final square shape of the tube 9 is then achieved in the calibration stand 4 with the straight shaping rollers 6.
  • the forming frames 2 are formed by devices as illustrated in more detail in FIG. 3. With their profiles 11, the form rollers 3 form a rolling contour from individual sections assigned to the form rollers 3. The center of curvature 12 of the rolling contour section formed by the upper form roller 3 is shown in FIG. 3 with the associated radius of curvature 13. In contrast to conventional forming stands, the form rollers 3 can, however, each be pivoted about a geometric pivot axis which runs parallel to the tube axis or to the rolling axis and which is shown for the upper form roller 3 and is designated by 14.
  • This pivot axis 14 is at a distance in the direction of the roller axis 15 from the center of curvature 12, so that, in contrast to pivoting about the center of curvature 12, there is an additional displacement of the shaping rollers 3 in the radial direction when pivoting.
  • the displacement of the center of curvature 12 in the direction of the roller axis 15 remains small due to the limited swivel angle, so that the change in inclination of the roll contour section caused thereby is negligible.
  • the shaping rollers 3 are each mounted on a slide 16 which is adjustable along an arcuate guide 17, the axis of which coincides with the geometric pivot axis 14, as shown in FIG 3 was indicated.
  • a worm shaft 18 is provided which meshes with a toothed ring 19 associated with the slide (FIG. 5). Since the circular arc guide 17 is provided for the slide 16 on a slide 20 which is held in the frame 21 in guides 22 which are radial to the tube 9, the shaping rollers 3 can not only be pivoted but also additionally adjusted radially.
  • the drive for this slide adjustment takes place via motors 23 and 24, of which the drive is branched via transfer case 25.
  • the arrangement is such that in each case corresponding slides of the pair of opposing form rollers 3 are drive-connected to one another in order to obtain a symmetrical synchronous control for the roller adjustment.
  • the drive for the radial slide adjustment for the upper and the lower form roller 3 is derived from the motor 23, which acts on corresponding spindle drives 26.
  • the spindle drives 26 for the radial slide adjustment of the lateral form rollers 3 are driven in an analogous manner by the motor 24.
  • the drive for the swivel adjustment of the shaping rollers 3 is summarized by the worm shafts 18 assigned to the upper and the lower shaping rollers being driven by the motor 24 and the worm shafts 18 for pivoting the lateral shaping rollers 3 by the motor 23.
  • the form rollers 3 have on one end face a coaxial to the roller axis 15 recess 27, in which the outer peripheral edge of the adjacent form roller can engage in a corresponding mutual pivoting of these form rollers.
  • the rolling contour can be adapted to different tube diameters and to different rectangular shapes without having to replace the shaping rollers 3, without fear of the tube being twisted.
  • FIGS. 7 to 9 show the deformation of a tube 9 with the largest tube diameter that can be processed on the system, for which the form rollers 3 according to FIG. 8 connect to one another in the circumferential direction without overlap and create conventional conditions. 10 to 12, a tube with a correspondingly smaller diameter is deformed.
  • the calibration rollers 10 of the input-side calibration stand 1 are to be replaced, but not the form rollers 3 of the subsequent forming stands 2, because these form rollers can be pivoted and at the same time displaced radially against the tube 9, which can be seen in FIG. 11, which of course only illustrate one of the two intermediate stages of tube deformation provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP93890148A 1992-08-03 1993-07-28 Dispositif pour le formage en continu d'un tube métallique Expired - Lifetime EP0582562B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0156992A AT399674B (de) 1992-08-03 1992-08-03 Vorrichtung zum kontinuierlichen umformen eines metallischen rohres
AT1569/92 1992-08-03

Publications (2)

Publication Number Publication Date
EP0582562A1 true EP0582562A1 (fr) 1994-02-09
EP0582562B1 EP0582562B1 (fr) 1996-03-13

Family

ID=3516237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93890148A Expired - Lifetime EP0582562B1 (fr) 1992-08-03 1993-07-28 Dispositif pour le formage en continu d'un tube métallique

Country Status (8)

Country Link
US (1) US5423201A (fr)
EP (1) EP0582562B1 (fr)
JP (1) JP2991898B2 (fr)
KR (1) KR100250995B1 (fr)
AT (1) AT399674B (fr)
CA (1) CA2101486C (fr)
DE (1) DE59301859D1 (fr)
FI (1) FI933419A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0719601A1 (fr) 1994-12-23 1996-07-03 MANNESMANN Aktiengesellschaft Cage de laminoir universel pour le formage de tubes
WO2012000490A3 (fr) * 2010-06-27 2012-05-03 Technische Universität Dortmund Procédé et dispositif de formage incrémentiel de tubes profilés, notamment de tubes profilés présentant des variations de section transversale sur leur axe longitudinal
EP3072603A1 (fr) * 2015-03-23 2016-09-28 Olimpia 80 SRL Unité de finition d'une machine de production de tuyaux carrés
CN107824615A (zh) * 2017-10-25 2018-03-23 石家庄铁能机电设备有限公司 万能圆变方机架
CN110340141A (zh) * 2019-06-10 2019-10-18 浙江泽广泰精密科技有限公司 一种万能式线材轧制装置

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JP2589660B2 (ja) * 1994-05-30 1997-03-12 川崎重工業株式会社 ユニバーサル圧延機
US5989281A (en) 1995-11-07 1999-11-23 Embol-X, Inc. Cannula with associated filter and methods of use during cardiac surgery
AT408318B (de) * 1998-02-26 2001-10-25 Voest Alpine Ind Anlagen Vorrichtung zum kontinuierlichen walzen eines blechbandes zu einem profil mit im querschnitt geraden profilschenkeln, insbesondere zum herstellen von längsgeschweissten rechteckrohren
JP2000301233A (ja) * 1999-04-21 2000-10-31 Manabu Kiuchi 角管製造用直交ロール列成形装置
DE10153144C1 (de) * 2001-10-27 2003-05-28 Sms Meer Gmbh Vorrichtung zur Herstellung eines Rohres
US7311946B2 (en) * 2003-05-02 2007-12-25 Air Products And Chemicals, Inc. Methods for depositing metal films on diffusion barrier layers by CVD or ALD processes
JP4780952B2 (ja) * 2004-11-26 2011-09-28 株式会社中田製作所 角管成形用ロールと角管のロール成形方法及び成形装置
ATE544534T1 (de) * 2008-08-01 2012-02-15 Vavit S R L Verfahren zur profilierung eines rohrs gegebener länge
WO2010082584A1 (fr) * 2009-01-14 2010-07-22 住友金属工業株式会社 Élément creux, et dispositif de fabrication et procédé de fabrication de celui-ci
DE102009039710B4 (de) * 2009-08-28 2014-03-20 V&M Deutschland Gmbh Verfahren zur Herstellung warmgewalzter Hohlprofile mit kleinen Kantenradien, Hohlprofil und Verwendung des Hohlprofils
CN102764769B (zh) * 2012-07-03 2014-04-16 太原科技大学 交叉梁式四辊型材轧机轧辊径向调节机构
CN108555091B (zh) * 2018-05-12 2024-03-15 通辽经济技术开发区农产品粗加工技术研究所 建筑钢模板直角挤棱机
JP6752917B1 (ja) * 2019-03-19 2020-09-09 株式会社ニチダイ 有底筒体の製造方法
CN109967578A (zh) * 2019-04-18 2019-07-05 安钢集团华德重工装备有限公司 一种高强异型管及冷弯型钢机
CN111774419A (zh) * 2020-07-02 2020-10-16 天津仁和聚科技发展有限公司 一种方管轧辊装置及应用该装置的方管定方机
CN113522978B (zh) * 2021-07-30 2022-10-25 安阳豫德机械有限公司 一种门铰链型钢精轧设备的同步装置

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Publication number Priority date Publication date Assignee Title
US1429311A (en) * 1920-09-21 1922-09-19 John L Albiez Blooming mill
US2394183A (en) * 1943-10-06 1946-02-05 Eaton Mfg Co Rolling mill
US2495387A (en) * 1946-01-03 1950-01-24 Richard E Rummins Mill
DE917963C (de) * 1950-04-25 1954-09-16 Schloemann Ag Einrichtung zum Anstellen der Walzen von Rohrwalzwerken
FR1188572A (fr) * 1956-11-09 1959-09-23 Neunkircher Eisenwerk Ag Dispositif pour le laminage de tubes de section triangulaire ou quadrangulaire à partir de tubes de section circulaire
FR1267303A (fr) * 1960-06-10 1961-07-21 Tubes De La Providence Soc D Procédé et dispositif pour le profilage de tubes
US3347078A (en) * 1965-02-04 1967-10-17 Yoder Co Tube reshaping machine

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DE1071636B (fr) *
US1308945A (en) * 1917-05-11 1919-07-08 Simmons Co Tube-squaring apparatus.
GB261665A (en) * 1926-06-17 1926-11-25 Rudolf Kronenberg Improvements in rolling mills
US1796447A (en) * 1928-05-21 1931-03-17 Pehr A Foren Rolling mill

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1429311A (en) * 1920-09-21 1922-09-19 John L Albiez Blooming mill
US2394183A (en) * 1943-10-06 1946-02-05 Eaton Mfg Co Rolling mill
US2495387A (en) * 1946-01-03 1950-01-24 Richard E Rummins Mill
DE917963C (de) * 1950-04-25 1954-09-16 Schloemann Ag Einrichtung zum Anstellen der Walzen von Rohrwalzwerken
FR1188572A (fr) * 1956-11-09 1959-09-23 Neunkircher Eisenwerk Ag Dispositif pour le laminage de tubes de section triangulaire ou quadrangulaire à partir de tubes de section circulaire
FR1267303A (fr) * 1960-06-10 1961-07-21 Tubes De La Providence Soc D Procédé et dispositif pour le profilage de tubes
US3347078A (en) * 1965-02-04 1967-10-17 Yoder Co Tube reshaping machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0719601A1 (fr) 1994-12-23 1996-07-03 MANNESMANN Aktiengesellschaft Cage de laminoir universel pour le formage de tubes
DE4447397C2 (de) * 1994-12-23 2000-09-21 Mannesmann Ag Universalformwalzgerüst zum kontinuierlichen Konturformen von Rohren
WO2012000490A3 (fr) * 2010-06-27 2012-05-03 Technische Universität Dortmund Procédé et dispositif de formage incrémentiel de tubes profilés, notamment de tubes profilés présentant des variations de section transversale sur leur axe longitudinal
EP3072603A1 (fr) * 2015-03-23 2016-09-28 Olimpia 80 SRL Unité de finition d'une machine de production de tuyaux carrés
CN107824615A (zh) * 2017-10-25 2018-03-23 石家庄铁能机电设备有限公司 万能圆变方机架
CN107824615B (zh) * 2017-10-25 2022-02-15 石家庄铁能机电设备有限公司 万能圆变方机架
CN110340141A (zh) * 2019-06-10 2019-10-18 浙江泽广泰精密科技有限公司 一种万能式线材轧制装置

Also Published As

Publication number Publication date
JPH06170412A (ja) 1994-06-21
ATA156992A (de) 1994-11-15
FI933419A0 (fi) 1993-07-30
FI933419A (fi) 1994-02-04
US5423201A (en) 1995-06-13
KR940005333A (ko) 1994-03-21
DE59301859D1 (de) 1996-04-18
EP0582562B1 (fr) 1996-03-13
CA2101486C (fr) 2001-04-10
KR100250995B1 (ko) 2000-04-15
CA2101486A1 (fr) 1994-02-04
AT399674B (de) 1995-06-26
JP2991898B2 (ja) 1999-12-20

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