EP0976466B1 - Procédé et dispositif pour la fabrication d'un tube à partir de matériau en bande - Google Patents

Procédé et dispositif pour la fabrication d'un tube à partir de matériau en bande Download PDF

Info

Publication number
EP0976466B1
EP0976466B1 EP99109817A EP99109817A EP0976466B1 EP 0976466 B1 EP0976466 B1 EP 0976466B1 EP 99109817 A EP99109817 A EP 99109817A EP 99109817 A EP99109817 A EP 99109817A EP 0976466 B1 EP0976466 B1 EP 0976466B1
Authority
EP
European Patent Office
Prior art keywords
rollers
workpiece
rotation
edges
pairs
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.)
Expired - Lifetime
Application number
EP99109817A
Other languages
German (de)
English (en)
Other versions
EP0976466A3 (fr
EP0976466A2 (fr
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.)
Dreistern Werk Maschinenbau GmbH and Co KG
Original Assignee
Dreistern Werk Maschinenbau GmbH and Co KG
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 Dreistern Werk Maschinenbau GmbH and Co KG filed Critical Dreistern Werk Maschinenbau GmbH and Co KG
Publication of EP0976466A2 publication Critical patent/EP0976466A2/fr
Publication of EP0976466A3 publication Critical patent/EP0976466A3/fr
Application granted granted Critical
Publication of EP0976466B1 publication Critical patent/EP0976466B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B21C37/08—Making tubes with welded or soldered seams
    • 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
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/083—Supply, or operations combined with supply, of strip material
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/10—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes
    • B21D5/12—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes making use of forming-rollers

Definitions

  • the invention relates to a method for producing a tube - preferably with a small wall thickness - made of tape material, wherein the initially flat strip material - made of metal, especially steel - in several forming stations one behind the other in the conveying direction is formed into the tube by the edges of the strip material more and more bent and curved towards each other.
  • the invention further relates to a device for producing a Pipe made of metallic strip material with a relatively small diameter and small wall thickness with several in the feed direction of the Workpiece pairs of rollers arranged one behind the other for gradual and then increasing deformation and curvature of the edges of the Workpiece in the feed course towards each other, with first pairs of rollers attack on the top and bottom of the workpiece and in the Area in which the curved edges form undercuts, Pairs of rollers are provided on the outside of the curved Attack edges.
  • the invention is therefore based on the object of a method and a device for the production of pipes of the entry to create the type with which the edges to be welded with greatest possible accuracy even before a welding station or Welding device meet, so that in particular pipes with thin walls and pipes with small diameters can be produced.
  • the method defined at the outset is used to solve this task characterized in that when the edges are curved so far are that they form an undercut that is partially shaped Workpiece in a first turning section by about a quarter turn is twisted and then further deformed, the between the Edges located slot in the further course of the passage of the Deformation is reduced and that before the final welding of the slot the workpiece in a second turning section again rotated back and then the edges moved towards each other welded become.
  • the form rollers behind the second turning section also rotate around horizontal axes and pull the workpiece in Feed direction. So it is in this area of the Form rollers actively moved in the feed direction, which is the quality of the Manufacturing benefits.
  • the drives of the driven form rollers can thus be synchronized be, the synchronization is carried out in particular mechanically. This allows the peripheral speeds of the form rollers Requirements of the workpiece and its material in the best possible way to adapt in the sense that a tube of high quality is created.
  • the torsion angle in the course of the first turning section and the second Rotation distance can be selected between 75 ° and 100 °. So it is possible to predefine a torsion angle or even to set it to make adjustable so that it differs from case to case Ratios and / or materials and / or dimensions can be adjusted.
  • the device used to solve the problem mentioned at the beginning with several pairs of rollers is characterized in that between the pairs of rollers on both sides of the workpiece and the pairs of rollers acting on the outside of the curvatures a turning section and a turning device for twisting the Workpiece by about a quarter turn and that behind that the outside of the curved edges attacking pairs of rollers Axes of rotation are arranged parallel to the axes of rotation of the front the rotating path and rotating device are rollers that these form rollers arranged behind the turning section also with are connected to the drive and that in the feed direction behind them to reduce the distance between the edges to be bent serving form rollers another turning section and turning device to twist the workpiece back and at least one behind Pair of rollers arranged to bring the edges closer to the welding process are.
  • a device is therefore proposed in which - of the Turning devices apart - all pairs of rollers parallel, horizontal Can have axes of rotation, so that they are also driven synchronously can. Accordingly, not only is the deformation accurate, but also also the feed of the originally band-shaped workpiece, see above that it is appropriately controlled to a tube of high accuracy can be deformed even if this pipe is only a small one Wall thickness and possibly only a small diameter Has.
  • the edges are so precise move to each other, that a correspondingly accurate welding without special welding slot control, even by means of laser welding is possible. This takes advantage of the fact that the torsion Workpiece and thus the slot under a certain tension stand so that they maintain a correspondingly precise location.
  • the first rotating device and / or the second rotating device can have at least one pair of rollers, one roller an annular groove and whose other roles have a matching ring projection, the axes of rotation of these rollers transversely and approximately around the Angle of rotation of the workpiece compared to the previous pairs of rollers are arranged pivoted, the workpiece with its up reached at this point cross section between the ring groove and fits the annular projection.
  • the user must therefore Workpiece, if the end face of this pair of rollers of the turning device reached accordingly twisted insert what it from this pair of rollers of the rotating device in the twisted accordingly or again turned back position is held so that the subsequent part of the workpiece the desired torsion and / or reverse torsion.
  • the rotating device is therefore practical a bracket formed by two rollers, through which the Partially shaped tube in a certain position is fixed during the further run, namely in the ab this twisted location.
  • the pair of roles used for this purpose represents a structurally simple additional solution and does not require any own drive, but could of course also have its own drive exhibit.
  • Workpieces and materials can be made from at least one workpiece existing rotating device form-fitting pair of rollers and especially the pair of roles in terms of orientation the axes of rotation can be pivoted transversely to the feed direction and be ascertainable. This means that it can be used for pipe production Preselected torsion angles within appropriate limits and be set.
  • the swivel angle for the rotating device can be about 25 °, in particular about 3 ° to 10 °, adjustable and can be opposite the axes of rotation in the feed direction before the turning distance located form rollers between 75 ° and 100 °, in particular approximately 80 ° to 90 °.
  • a device designated as a whole by 1 is used for manufacturing a tube 2 made of metallic strip material 3, also in the following "Workpiece 3" called, the device 1 due to the Features and details described below are suitable is, pipes with a relatively small diameter and relatively smaller To produce wall thickness.
  • the device 1 has several in the feed direction of the Workpiece 3 roller pairs 01, 02, 03 arranged one behind the other and 04 and in the feed direction according to arrow Pf1 in FIG Distance to pairs of rollers 05 and 06 and with a further distance Roller pairs 07 and 08 as well as 09 and finally roller pairs 10 to 13 to calibrate on, causing a gradual deformation with increasing curvature of the edges 4 of the workpiece 3 in Feed course is carried out towards each other, this gradual deformation in Figure 4 in a schematic representation is indicated from the bottom up.
  • Fig.4 in the bottom representation shows the initial cross section of the band-shaped Workpiece 3, which according to those located above Cross sections are deformed more and more until according to the very top these schematic cross-sectional representations, the tube 2 is formed.
  • pairs of rollers 05 and 06 are designed and arranged so that their roles attack on the outside of the curved edges of the workpiece 3, as it is particularly evident in Fig.5 in the "stitch 05" and as “Stitch 06" designated individual representations can be seen, wherein additionally between the support rollers 05a and 06a which reach between the edges are indicated in Fig.5.
  • the first rotating device 6 and also the second rotating device 9 point according to Figures 6 and 7 and 8 and 9 and also according to 5 each a pair of rollers, consisting of two rollers 61 and 62 or 91 and 92, the roller 61 according to FIG. 6 having an annular groove and the other roller 62 of the first rotating device 6 one to do so have matching ring projection and the axes of rotation 63 of these rollers 61 and 62 across and about the angle of rotation of the workpiece 3 opposite the preceding pairs of rollers are arranged pivoted.
  • the workpiece 3 with its cross section between the annular groove and the annular projection of these rollers 61 and 62 fits and thus form-fitting in the rotated position is held and fixed, although at the same time a feed he follows.
  • the roller 91 also has an annular groove according to FIGS. 8 and 5, while the Roller 92 engages the workpiece at its slot has an annular projection, which is also in an annular groove is arranged to the now adapted to the final pipe Cross section of the workpiece 3 according to Fig. 5, stitch 06/07 consider.
  • the swivel angle for the workpiece 3 within the rotating device 6 and also in turn in the rotating device 9 can also via a larger angle difference can be changed or - always constant angle of rotation - be different.
  • Angle of rotation of approximately 75 ° to 100 ° and in particular approximately 80 ° to 90 ° or - as in the exemplary embodiments - deviations of 90 °, that are smaller than 10 °.
  • Figures 1 and 2 show that a first set of pairs of rollers from “stitch 01" to “stitch 04" for the first deformation of the edges 4 and their curvature compared to the starting position as a sheet metal strip trained workpiece 3 up to the turning distance with the first Rotating device 6 comprises four pairs of rollers. It has shown, that this is a convenient number of forming rolls around the sheet metal strip so far to prepare and in terms of cross section deform that it is then outside for further deformation of the curvatures of the edges is to be recorded, but what about a quarter turn is twisted.
  • the pairs of rollers 07 and 08 behind the second rotating device 9 also have rollers rotating about horizontal axes on. It is then followed by upsetting rolls 09, too can rotate around vertical axes. In the further feed process then closes a calibration part with the roller pairs 10 to 13 and finally the welding device 14.
  • first pair of rollers 100 before the subsequent pairs of roles 01 to 04 slightly different is trained. It is the pair of roles, which in Fig. 5, left column at the top with "before stitch 01" is designated and is also indicated schematically in FIG.
  • the first pair of rollers 01 for bending the edges 4 of the workpiece 3 is upstream of this pair of rollers and is used for rolling the Edges of the edges 4, so that these after the bending of the cross section to a circle despite the different radii of curvature of the Inside and outside of the workpiece a narrow, practically constant gap practically over the entire material thickness form with each other, which makes welding easier.
  • a tube 2 can be made from a Workpiece 3 in. initially as a flat strip material several forming stations one behind the other in the conveying direction and pairs of rollers are made by the edges 4 of the Workpiece 3 more and more bent and in the feed direction be curved towards each other. This happens first in the Roller pairs 01 to 04.
  • edges 4 are curved so far that they have an undercut 5 form, the partially already curved and shaped workpiece 3 twisted about a quarter turn in a first turning section and then further deformed to the tube 2, the between the Edges 4 located slot in the further course of the feed 4 and 5 is reduced, initially in the slot still engage corresponding annular guide projections can.
  • the workpiece 3 in a second Rotation distance - by means of the second rotating device 9 - again rotated back, then the edges 4 finally together be welded. If necessary, one can also be used beforehand Calibration take place.
  • the workpiece 3 can in the second rotational path by means of the second Rotating device 9 rotated back about the same angle to which it was previously on the first turning route by means of the first Rotating device 6 is twisted.
  • To deform the edges 4 the workpiece is close to each other except for a small slot width during its advance compared to its normal orientation twisted what due to the length of the turns and the elasticity the material of the workpiece 3 is possible.
  • the torsion angle can vary the first rotation section and accordingly also in the second rotation section be selected and set.
  • a variation of this angle by 8 °, in Figure 8 such a 4 °.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Making Paper Articles (AREA)
  • Metal Extraction Processes (AREA)
  • Clamps And Clips (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Claims (14)

  1. Procédé pour fabriquer un tube (2) de préférence de faible épaisseur de paroi à partir d'un matériau en bande, sachant que le matériau en bande qui est tout d'abord plat est transformé en tube dans plusieurs postes de formage se succédant dans le sens d'avancement en cintrant de plus en plus les bords (4) du matériau en bande et en les faisant se rejoindre, caractérisé en ce que, lorsque les bords (4) sont courbés au point qu'ils forment une contre-dépouille (5), la pièce partiellement formée (3) subit une rotation d'un quart de tour sur un premier tronçon de rotation, avant que son formage ne se poursuive, sachant que la fente située entre les bords (4) se réduit dans la suite de l'avancement et du formage, et en ce qu'avant la fermeture et la soudure définitives, de la fente, la pièce (3) est ramenée à sa position initiale sur un second tronçon de rotation, après quoi les bords (4) qui se sont rejoints sont soudés.
  2. Procédé selon la revendication 1, caractérisé en ce que, dans un second tronçon de rotation, la pièce revient à sa position initiale en tournant sur le même angle que celui sur lequel elle a tourné précédemment sur le premier tronçon de rotation.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'après le premier tronçon de rotation, des galets de roulement (05, 06) agissant sur la pièce (3) sont entraínés autour d'axes horizontaux, et la pièce (3), au cours de la suite de son formage, est poussée en avant par ces galets de formage (05, 06).
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que des galets de formage (07, 08) entrant en action après le second tronçon de formage tournent également autour d'axes horizontaux et tirent la pièce (3) en avant.
  5. Procédé selon la revendication 3 ou 4; caractérisé en ce que les entraínements des galets de formage entraínés tournent avant, entre et après les tronçons de formage de façon synchronisée, et en ce que la synchronisation est notamment mécanique.
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que l'angle de torsion est sélectionné, notamment réglé, au cours du premier tronçon de rotation et/ou du second tronçon de rotation et est compris entre 75° et 100°.
  7. Dispositif (1) pour fabriquer un tube (2) de diamètre relativement petit et de faible épaisseur de paroi à partir d'une bande de métal (3) à l'aide de plusieurs paires de galets (01, 02, 03, 04) se succédant dans le sens d'avancement de la pièce (3) pour déformer et cintrer progressivement les bords (4) de la pièce (3) l'un vers l'autre dans le sens d'avancement, sachant que des premières paires de galets (01 à 04) agissent sur le dessus et le dessous de la pièce (3) et que, dans la zone où les bords cintrés (4) forment des contre-dépouilles (5), des paires de galets sont prévues, qui agissent sur le côté extérieur des bords courbés, caractérisé en ce qu'entre les paires de galets agissant des deux côtés de la pièce et les paires de galets agissant sur le côté extérieur des courbures se trouvent un tronçon de rotation et un dispositif de rotation (6) pour faire tourner la pièce d'environ un quart de tour, qui sont suivis par une paire de galets agissant sur le côté extérieur des bords cintrés (4), qui sont des galets parallèles aux axes de rotation des galets situés avant le tronçon de rotation et le dispositif de rotation, en ce que ces galets de formage situés après le tronçon de rotation sont reliés à un entraínement et en ce que, par rapport au sens d'avancement, à la suite de ces galets de formage servant à réduire l'écart entre les bords (4) destinés à se rejoindre, se trouvent un tronçon et un dispositif de rotation (9) supplémentaires pour faire tourner la pièce dans l'autre sens et la ramener dans sa positon initiale, qui sont suivis par au moins une paire de galets destinés à rapprocher les bords (4) en vue de la soudure.
  8. Dispositif selon la revendication 7, caractérisé en ce que le premier dispositif de rotation (6) et/ou le second dispositif de rotation (9) présentent au moins une paire de galets dont l'un (61) comporte une rainure annulaire et l'autre (62) une saillie annulaire complémentaire à la rainure précitée, sachant que les axes de rotation (63) de ces galets (61, 62) sont orientés transversalement et décalés d'environ l'angle de rotation de la pièce (3) par rapport aux paires de galets antérieurs, et en ce que la section transversale de la pièce (3) s'insère parfaitement entre la rainure annulaire et la saillie annulaire.
  9. Dispositif selon la revendication 7 ou 8, caractérisé en ce que, du point de vue de l'orientation des axes de rotation, le dispositif de rotation (6, 9) composé d'au moins une paire de galets s'emparant de la pièce (3) avec un engagement positif, et notamment ladite paire de galets peut pivoter et être immobilisé(e) transversalement par rapport au sens d'avancement (Pf1).
  10. Dispositif selon la revendication 9, caractérisé en ce que le dispositif de rotation (6; 9) peut pivoter d'environ 25°, notamment avec une amplitude comprise entre 3° et 10°, et, par rapport aux axes de rotation des galets situés devant le tronçon de rotation dans le sens d'avancement, cet angle est compris entre 75° et 100°, notamment entre environ 80° et 90°.
  11. Dispositif selon l'une des revendications 7 à 10, caractérisé en ce qu'un premier jeu de paires de galets pour le premier cintrage et formage par rapport à l'état initial des bords de la pièce (3) réalisée en tant que bande de métal compte jusqu'au tronçon de rotation environ trois à six, de préférence quatre ou cinq paires de galets.
  12. Dispositif selon l'une des revendications 7 à 11, caractérisé en ce qu'après le premier tronçon de rotation (6) sont placées au moins deux paires de galets (05, 06) pour rapprocher les bords cintrés (4), qui sont suivies par le second dispositif de rotation (9).
  13. Dispositif selon l'une des revendications 7 à 12, caractérisé en ce que la paire de galets située après le second dispositif de rotation (9) présente des galets tournant pour une partie autour d'axe horizontaux et pour l'autre partie autour d'axes verticaux et est suivie par le dispositif de soudure (14).
  14. Dispositif selon l'une des revendications 7 à 13, caractérisé en ce qu'une paire de galets destinée à saisir les arêtes des bords (4) est placée en amont de la paire de galets destinée à cintrer les bords (4) de la pièce (3).
EP99109817A 1998-07-30 1999-05-19 Procédé et dispositif pour la fabrication d'un tube à partir de matériau en bande Expired - Lifetime EP0976466B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19834400 1998-07-30
DE19834400A DE19834400C1 (de) 1998-07-30 1998-07-30 Verfahren und Vorrichtung zum Herstellen eines Rohres, insbesondere für ein Rohr mit geringer Wandstärke, aus metallischem Bandmaterial mit relativ kleinem Durchmesser

Publications (3)

Publication Number Publication Date
EP0976466A2 EP0976466A2 (fr) 2000-02-02
EP0976466A3 EP0976466A3 (fr) 2000-10-18
EP0976466B1 true EP0976466B1 (fr) 2002-08-14

Family

ID=7875876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99109817A Expired - Lifetime EP0976466B1 (fr) 1998-07-30 1999-05-19 Procédé et dispositif pour la fabrication d'un tube à partir de matériau en bande

Country Status (5)

Country Link
EP (1) EP0976466B1 (fr)
AT (1) ATE222149T1 (fr)
DE (2) DE19834400C1 (fr)
DK (1) DK0976466T3 (fr)
ES (1) ES2182429T3 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10007496C1 (de) * 2000-02-18 2001-04-26 Dreistern Werk Maschinenbau Gmbh & Co Kg Profilieranlage mit einer Profiliermaschine und mit einer in deren Verlauf angeordneten Schweißvorrichtung zum Herstellen eines aus metallischem Bandmaterial geformten Profils
DE10226517C1 (de) * 2002-06-14 2003-10-30 Dreistern Werk Maschinenbau Gmbh & Co Kg Verfahren und Vorrichtung zum Herstellen eines Hohlprofils
DE10316336A1 (de) * 2003-04-10 2004-11-04 Dreistern-Werk Maschinenbau Gmbh & Co. Kg Verfahren und Vorrichtung zum Herstellen eines geschlossenen Metallprofils oder Metallrohrs mit in Längsrichtung variierender Wanddicke
EP1644145B1 (fr) 2003-06-27 2010-11-10 Crebocan Ag Procede et dispositif pour produire un corps de boite-boisson, ainsi que corps de boite-boisson
JP5313451B2 (ja) 2004-01-15 2013-10-09 クレボカン・アクチェンゲゼルシャフト 容器本体を製造する方法及び装置並びに容器本体
DE102005022244B4 (de) 2005-05-13 2007-07-19 Eroform Edelstahl Gmbh Führungs- und Verformungssystem, dessen Verwendung sowie Verfahren zur Herstellung von geschweißten Rohren
DE102006027046B3 (de) * 2006-06-10 2007-11-22 Lemuth Gmbh Verfahren und Vorrichtung zum Herstellen eines Rohres
DE102006035702A1 (de) * 2006-08-01 2008-02-21 Eroform Edelstahl Gmbh Aufhängung für ein Laserschweißgerät
DE102009007701B4 (de) * 2009-02-05 2011-02-17 Audi Ag Verfahren zur Herstellung eines geschlossenen Profils aus einem Flachmaterialband mittels Walzprofilieren
DE102009050569B4 (de) * 2009-08-10 2011-09-22 Willy Kreutz Gmbh & Co. Kg Kontaktstift zur Verwendung an Beleuchtungsmitteln sowie Verfahren zu dessen Herstellung
DE102009056324A1 (de) 2009-12-01 2010-07-01 Dreistern Gmbh & Co. Kg Verfahren und Vorrichtung zum Längsumformen eines Metallbands mit entlang seiner Längsachse variierender Materialstärke
CN102847744A (zh) * 2012-09-20 2013-01-02 上海和达汽车配件有限公司 一种不等壁厚管开口件的制作方法
CN106031936B (zh) * 2015-03-13 2018-01-19 奇昊汽车系统（苏州）有限公司 一种支撑套管的制造生产方法
CN108895213A (zh) * 2018-05-30 2018-11-27 浙江康盛股份有限公司 一种超薄壁管及其加工方法
CN117020409A (zh) * 2023-08-28 2023-11-10 佛山市智焱激光科技有限公司 一种自动卷料激光焊接装置
CN117299891B (zh) * 2023-11-24 2024-02-06 河北鹏鑫管道装备集团有限公司 一种异形弯管加工装置及其加工方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3101401A (en) * 1957-07-25 1963-08-20 Schlotterer Gustav Method for the manufacture of hollow bodies
JPS5361549A (en) * 1976-11-16 1978-06-02 Shinwa Kasei Kk Pipe forming device from tape form substance
JPS5928410B2 (ja) * 1981-05-29 1984-07-12 新日本製鐵株式会社 厚肉電縫管の成形方法
DE3529160A1 (de) * 1985-08-14 1987-02-26 Nippon Steel Corp Formwalzvorrichtung

Also Published As

Publication number Publication date
DE19834400C1 (de) 2000-01-05
ATE222149T1 (de) 2002-08-15
DE59902324D1 (de) 2002-09-19
EP0976466A3 (fr) 2000-10-18
DK0976466T3 (da) 2002-12-16
ES2182429T3 (es) 2003-03-01
EP0976466A2 (fr) 2000-02-02

Similar Documents

Publication Publication Date Title
EP0976466B1 (fr) Procédé et dispositif pour la fabrication d'un tube à partir de matériau en bande
EP0582562B1 (fr) Dispositif pour le formage en continu d'un tube métallique
DE2253025C3 (de) Vorrichtung zum Herstellen von Schraubennahtrohr
DE3529160A1 (de) Formwalzvorrichtung
DE19901187C2 (de) Vorrichtung zum kontinuierlichen Walzen eines Blechbandes zu einem Profil mit im Querschnitt geraden Profilschenkeln, insbesondere zum Herstellen eines längsgeschweißten Rechteckrohres
DE3622926C2 (de) Kontinuierliches mehrstufiges Walzwerk
DE102005031437A1 (de) Vorrichtung zum Umformen eines bandförmigen Werkstückes
DE19839614A1 (de) Biegewälz-Verfahren zur Herstellung von Elektro-Verbund-Röhren mittels Biegewälz-Lager
DE3780453T2 (de) Walze zum stauchen von flanschen eines walzprofils.
DE1615066B2 (de) Vorrichtung zum Herstellen eines Hochfrequenz-Koaxialkabels
DE69209632T2 (de) Verfahren und Vorrichtung zum Walzen von Metallen zur Herstellung von rundem Stabmaterial oder Walzdraht aus rundem Stab- oder Drahtmaterial mit grösserem Durchmesser
DE1294909B (de) Vorrichtung zum Herstellen von Drahtschrauben
EP3866993B1 (fr) Station de profilage, unité de profilage formée à partir de celle-ci, et installation de profilage
DE69606354T2 (de) Vorrichtung und Verfahren zur Herstellung von geschweissten Stahlröhren
EP1484123B1 (fr) Procédé et dispositif pour fabriquer un profilé cintré
DE4403339A1 (de) Vorrichtung zur Endformbearbeitung eines durch Elektro-Widerstandsschweißung erzeugten Rohres
DE2716940A1 (de) Verfahren zur herstellung von laengsnahtrohren und walzwerk zur durchfuehrung dieses verfahrens
DE2154438A1 (de) Walzwerk zur spiralrohr-herstellung
EP2419227B1 (fr) Presse à cintrer pour feuilles de tôle
DE2456782A1 (de) Verfahren und vorrichtung zum richten von profilstahl
DE2941180A1 (de) Verfahren und vorrichtung zur herstellung von profilen aus einem blechstreifen o.dgl.
DE3940984A1 (de) Verfahren und vorrichtung zum biegen von blechteilen zu schalen oder rohren (zentro-geometrisches-rollbiegeverfahren)
DE3039237C2 (de) Vorrichtung zur Umformung eines Runddrahts zu einem Metallband
DE102004060805A1 (de) Verfahren und Vorrichtung zum Biegen von Hohlprofilstäben, insbesondere für Abstandhalterrahmen von Isolierglasscheiben
EP1631399B1 (fr) Methode pour le cintrage de profiles en bande comportant deux rebords opposes, et dispositif pour mettre en oeuvre ledit procede

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FI FR GB IT LI NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20000929

AKX Designation fees paid

Free format text: AT BE CH DE DK ES FI FR GB IT LI NL PT SE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20020315

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FI FR GB IT LI NL PT SE

REF Corresponds to:

Ref document number: 222149

Country of ref document: AT

Date of ref document: 20020815

Kind code of ref document: T

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59902324

Country of ref document: DE

Date of ref document: 20020919

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: HANS RUDOLF GACHNANG PATENTANWALT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20021129

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20021129

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2182429

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20030515

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20040330

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20040415

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20040416

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20040504

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20040512

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20040517

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20040521

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20050411

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20050429

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050506

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20050513

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050520

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050520

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20050530

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050531

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050531

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20050519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060131

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20060131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060519

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060531

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20060531

Year of fee payment: 8

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20050520

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061201

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20061201

BERE Be: lapsed

Owner name: *DREISTERN-WERK MASCHINENBAU G.M.B.H. & CO. K.G.

Effective date: 20060531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070519