EP1230995A2 - Procédé pour la fabrication de tubes à soudure longitudinale - Google Patents

Procédé pour la fabrication de tubes à soudure longitudinale Download PDF

Info

Publication number
EP1230995A2
EP1230995A2 EP02290051A EP02290051A EP1230995A2 EP 1230995 A2 EP1230995 A2 EP 1230995A2 EP 02290051 A EP02290051 A EP 02290051A EP 02290051 A EP02290051 A EP 02290051A EP 1230995 A2 EP1230995 A2 EP 1230995A2
Authority
EP
European Patent Office
Prior art keywords
strip
metal
drawing dies
tube
drawing die
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
EP02290051A
Other languages
German (de)
English (en)
Other versions
EP1230995B1 (fr
EP1230995A3 (fr
Inventor
Klaus Porcher
Friedrich Harten
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.)
Nexans SA
Original Assignee
Nexans SA
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 Nexans SA filed Critical Nexans SA
Publication of EP1230995A2 publication Critical patent/EP1230995A2/fr
Publication of EP1230995A3 publication Critical patent/EP1230995A3/fr
Application granted granted Critical
Publication of EP1230995B1 publication Critical patent/EP1230995B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, rods, wire, tubes, profiles 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
    • B21C37/08Making tubes with welded or soldered seams
    • B21C37/0818Manufacture of tubes by drawing of strip material through dies

Definitions

  • the invention relates to a method and an apparatus for manufacturing longitudinally welded pipes according to the preamble of claim 1 and Claim 6.
  • From US 3 023 300 A is a process for the production of longitudinally welded Metal pipes are known in which a metal strip drawn off from a supply reel passes through one consisting of several form roller pairs arranged one behind the other Molding device is formed into a slotted tube in continuous operation, the Band edges of the slotted tube are welded together, the welded Metal pipe is provided with a helical or annular corrugation, and that corrugated tube is wound on a storage drum.
  • a jaw trigger that firmly grips the slotted tube. Behind the Clamping jaw trigger runs the slotted tube into a guide device that holds the tube leads in front of and behind the welding point. A recess in the Guide device releases the strip edges in a short area, so that a Laser beam can weld the strip edges.
  • This method is particularly suitable for the production of tubes made of stainless steel Steel with dimensions of approx. 3 - 3.5 mm and a wall thickness of 0.2 mm.
  • the disadvantage of forming the metal strip into a slotted tube is limited to one Wall thickness of at least 0.15 mm. With smaller wall thicknesses, an exact Do not realize the alignment of the band edges to each other. Exactly However, the strip edges lie against each other with such extremely small wall thicknesses indispensable for achieving a good weld. This applies in particular if the strip edges are welded using a laser welding device becomes.
  • the present invention is therefore based on the object, the beginning to improve the method described so that even pipes with a Outside diameter of less than 6 mm from a metal band with a wall thickness less than 0.15, in particular less than 0.10 mm can be produced.
  • FIGS. 1 and 2 Exemplary embodiments explained in more detail.
  • the sequence of the method is shown in simplified form in FIG. From one Supply spool 1 becomes a metal strip 2 with a wall thickness of less than 0.15 mm withdrawn and gradually formed into a slotted tube in a tube forming device 3, and the longitudinal edges of the slotted tube are welded to a laser welding device 4.
  • the welded tube 5 is gripped by a collet trigger 6 and one Supply drum 7 fed.
  • the welded tube 5 has the following dimensions, for example
  • FIG. 2 shows a lateral section through the tube shaping device 3.
  • the metal strip 2 is by means of a conventional roller tool, not shown Initially only provide a curvature at the strip edges, the radius of which Radius of the finished pipe almost corresponds.
  • the pre-deformed metal strip is then arranged in a row by several Drawing dies 8, 9, 10 and 11, which have a conical opening, gradually become one Deformed tube with an open slot.
  • the drawing dies are particularly advantageous 8, 9, 10 and 11 made of diamond.
  • the opening angle of the drawing dies 8, 9, 10 and 11 is approximately 4 °.
  • a so-called Sword 14 is provided, which through the longitudinal slot of the tube into the tube interior protrudes and contacts the longitudinal edges of the tube. This results in an exact Guiding the belt edges so that no difficulties arise during welding.
  • a last drawing die 15 is provided behind the housing 13, its conical running opening at its narrowest point, d. H. the strip edges at the exit point merges, so that these by means of the laser welding device 16 together can be welded.
  • This drawing die 15 is also made of diamond.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)
  • Coating With Molten Metal (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
EP02290051A 2001-02-10 2002-01-10 Procédé et dispositif pour la fabrication de tubes à soudure longitudinale Expired - Lifetime EP1230995B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10106195A DE10106195A1 (de) 2001-02-10 2001-02-10 Verfahren zur Herstellung längsnahtgeschweißter Rohre
DE10106195 2001-02-10

Publications (3)

Publication Number Publication Date
EP1230995A2 true EP1230995A2 (fr) 2002-08-14
EP1230995A3 EP1230995A3 (fr) 2003-11-05
EP1230995B1 EP1230995B1 (fr) 2004-10-20

Family

ID=7673588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02290051A Expired - Lifetime EP1230995B1 (fr) 2001-02-10 2002-01-10 Procédé et dispositif pour la fabrication de tubes à soudure longitudinale

Country Status (8)

Country Link
EP (1) EP1230995B1 (fr)
JP (1) JP2002301515A (fr)
CN (1) CN1243618C (fr)
AT (1) ATE280004T1 (fr)
DE (2) DE10106195A1 (fr)
DK (1) DK1230995T3 (fr)
ES (1) ES2229057T3 (fr)
PT (1) PT1230995E (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1595610A1 (fr) * 2004-05-07 2005-11-16 Nexans Procédé de fabrication en continu de tuyaux métalliques soudés longitudinalement

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102189149B (zh) * 2010-03-08 2012-11-14 湖北三环锻压设备有限公司 一种高强度厚壁钢管的成形工艺方法
CN108688188A (zh) * 2017-04-06 2018-10-23 上海岚青包装设备有限公司 一种全自动医疗床管热合机
CN112742893A (zh) * 2020-12-08 2021-05-04 上海坤勇节能科技有限公司 一种锥孔挤压式直缝焊管成型装置及其成型方法
CN113319149B (zh) * 2021-08-03 2021-11-02 天津市大千管业有限公司 一种生产环形金属波纹管的一体成型设备及方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE942390C (de) * 1953-04-21 1956-05-03 Mannesmann Ag Vorrichtung zum fortlaufenden Entfernen des Innengrates von aus Bandeisen geschweissten Rohren
US3001569A (en) * 1958-04-29 1961-09-26 Flexonics Corp Tube forming tool
US3023300A (en) * 1959-08-10 1962-02-27 Hackethal Draht & Kabelwerk Ag Method and apparatus for forming cable sheath
DE2805735C3 (de) * 1978-02-09 1982-02-18 Mannesmann AG, 4000 Düsseldorf Verfahren und Vorrichtung zur Herstellung längsnahtgeschweißter Rohre durch Kalteinformen von Bändern
JPS5522442A (en) * 1978-08-03 1980-02-18 Yoshida Kogyo Kk <Ykk> Circular pipe forming method and device thereof
DE3044003C2 (de) * 1980-11-18 1983-07-14 Mannesmann AG, 4000 Düsseldorf Vorrichtung zum Einführen von dünnem Band zum Schlitzrohr durch Ziehen
FR2580526A1 (fr) * 1985-04-17 1986-10-24 Shahum Christian Dispositif de filiere pour rouler par etirage en fer plat et obtenir un element tubulaire
DE9007411U1 (de) * 1990-01-10 1991-06-27 KM-kabelmetal AG, 4500 Osnabrück Vorrichtung zur Herstellung eines längsnahtgeschweißten Metallrohrs
DE4434134A1 (de) * 1994-09-24 1996-03-28 Kabelmetal Electro Gmbh Verfahren zur Herstellung eines längsnahtgeschweißten Metallrohres
JPH08267127A (ja) * 1995-03-28 1996-10-15 Nisshin Steel Co Ltd 金属溶接管の製造方法
JP3904707B2 (ja) * 1998-02-06 2007-04-11 カルソニックカンセイ株式会社 造管方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1595610A1 (fr) * 2004-05-07 2005-11-16 Nexans Procédé de fabrication en continu de tuyaux métalliques soudés longitudinalement

Also Published As

Publication number Publication date
EP1230995B1 (fr) 2004-10-20
CN1243618C (zh) 2006-03-01
PT1230995E (pt) 2005-03-31
DE10106195A1 (de) 2002-08-14
ATE280004T1 (de) 2004-11-15
ES2229057T3 (es) 2005-04-16
DE50201327D1 (de) 2004-11-25
JP2002301515A (ja) 2002-10-15
DK1230995T3 (da) 2005-02-07
EP1230995A3 (fr) 2003-11-05
CN1368413A (zh) 2002-09-11

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