EP0703017A2 - Procédé de fabrication de tuyaux métalliques soudés longitudinalement - Google Patents

Procédé de fabrication de tuyaux métalliques soudés longitudinalement Download PDF

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Publication number
EP0703017A2
EP0703017A2 EP95114295A EP95114295A EP0703017A2 EP 0703017 A2 EP0703017 A2 EP 0703017A2 EP 95114295 A EP95114295 A EP 95114295A EP 95114295 A EP95114295 A EP 95114295A EP 0703017 A2 EP0703017 A2 EP 0703017A2
Authority
EP
European Patent Office
Prior art keywords
tube
metal
welded
tool
metal tube
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
EP95114295A
Other languages
German (de)
English (en)
Other versions
EP0703017B1 (fr
EP0703017A3 (fr
Inventor
Gerhard Dr.-Ing. Ziemek
Harry Staschewski
Klaus Porcher
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 Deutschland GmbH
Original Assignee
Alcatel Kabel AG and Co
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 Alcatel Kabel AG and Co filed Critical Alcatel Kabel AG and Co
Publication of EP0703017A2 publication Critical patent/EP0703017A2/fr
Publication of EP0703017A3 publication Critical patent/EP0703017A3/fr
Application granted granted Critical
Publication of EP0703017B1 publication Critical patent/EP0703017B1/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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture 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
    • B21C37/08—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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture 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
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0822—Guiding or aligning the edges of the bent sheet

Definitions

  • the invention relates to a method for producing a longitudinally welded metal tube with an outer diameter of 1 to 6 mm, in which a metal strip is drawn off from a supply spool and formed into a tube with a longitudinal slot by a molding tool, and the longitudinal slot of the tube is welded by means of a laser welding device.
  • metal tubes in the specified diameter range from a metal strip which is formed into a slot tube and whose longitudinal slot is welded with a laser.
  • the metal band for example a band made of stainless steel, is gradually formed into a tube with a longitudinal slot by a first forming tool, which consists of several pairs of forming rolls.
  • a second mold which also consists of several pairs of form rollers, the tube with the longitudinal slot is formed into a tube with abutting band edges.
  • the form rollers of the second form tool only engage on the outer surface of the tube.
  • a pair of rollers is provided behind the second mold, which guides the slotted tube at a predetermined distance from the focus of a laser welding device.
  • the welded tube passes with great play into a cooling tube in which the weld seam is cooled intensively with argon.
  • the welded metal pipe then passes into a drawing die, in which it is reduced in diameter.
  • a driven extraction disc is used, around which the metal tube is wrapped with a loop of 180 °.
  • the trigger disk has a V-groove on the circumference, into which the metal tube is pressed so that a sufficient tensile force is applied.
  • This can lead to an oval deformation of the metal tube.
  • the lateral alignment of the longitudinal slot with respect to the laser beam is carried out by the upper rollers of the second mold, which have circumferential projections which dip into the slot tube and guide the band edges.
  • the invention has for its object to improve the generic method in such a way that with this tube of great length i.e. of more than 3000 m, can be produced without welding errors.
  • the tools through which the metal pipe is passed ensure that the strip edges are exactly aligned with each other and thus a flawless butt seam can be produced.
  • the second tool holds the strip edges together even after welding, so that particularly intensive cooling of the weld seam is not necessary. This can save argon.
  • the tools ensure in a particularly simple manner that both the lateral alignment and the vertical alignment of the longitudinal seam to the laser beam or to the focus are optimal, so that no readjustment of the laser beam position is necessary during production.
  • the clamping jaw trigger ensures that the metal pipe is guided against rotation under the welding point, since the clamping jaws firmly grip the pipe.
  • the tube is guided through a unitary tool formed from the first and the second tool.
  • the laser beam is directed through a recess in the tool onto the seam to be welded.
  • the entrance area of the tool surrounds the pipe to be welded 100%, whereas the exit area of the tool behind the welding point only encompasses the pipe to hold the strip edges in contact with each other.
  • the weld area is free, so that good cooling is possible.
  • the metal strip is trimmed on its longitudinal edges before being formed into a tube, so that "virgin" strip edges are present during welding and welding errors due to contamination are therefore avoided. Trimming is advantageously carried out with roller shears that are driven. Since considerable contact forces occur during both trimming and tube forming, it must be feared that some metals, such as aluminum or stainless steel, will “seize” on the tools. To prevent this seizure, the metal strip is wetted with a liquid lubricant. In the simplest way, wetting is achieved by passing the metal strip between two strips of felt, which are constantly soaked with the lubricant. The lubricant also ensures that the metal tube in the area of the guide tool is not seized.
  • the area of the welding spot is flushed with a protective gas, preferably helium. In addition to the cooling effect, it is also achieved that no tarnishing colors occur in the area of the weld seam.
  • the welded metal pipe is advantageously reduced in diameter behind the first clamping jaw pull-off and the reduced-diameter pipe is pulled off the clamping jaws of a second clamping jaw pull-off.
  • the tube can be reduced by about 15 to 18% in diameter in one go.
  • the line speed can be increased compared to the welding speed.
  • Another advantage is that the dimension of the end product can be chosen largely independently of the dimension of the welded pipe.
  • the method according to the invention is particularly suitable for the production of optical waveguide cables.
  • one or more optical fibers are inserted into the open slot tube before the welding point.
  • it is advantageous to put a petroleum jelly in the metal pipe must be filled in to protect the fiber-optic cables, which are sensitive to moisture.
  • the optical waveguide is inserted into the metal in a particularly advantageous manner by means of a thin tube, which at the earliest releases the optical waveguide behind the welding point.
  • the function of the tube is to protect the sensitive optical fiber from the heat radiated by the weld seam. This protection is particularly successful when the petroleum jelly is filled into the metal tube through a gap which is formed from the tube and a second copper tube surrounding the tube.
  • the petroleum jelly gets into the metal tube at the earliest behind the welding point.
  • the inner first tube expediently also consists of copper and is longer than the outer tube. Its end should be between the first and the second chuck trigger, whereas the end of the outer tube is in the area of the first jaw trigger. Both tubes are fixed outside the metal tube.
  • the petroleum jelly is filled into the metal tube under pressure control in an amount that fills the cavity located between the optical waveguide and the inner wall of the metal tube. Heat is dissipated by the flowing petroleum jelly, so that the optical fibers located inside the tube are protected.
  • the cross section of the second tube is deformed at least in the area below the welding point in such a way that the tube guiding the optical waveguide is directed against the area of the outer tube opposite the longitudinal seam. This achieves the greatest possible distance between the weld seam and the optical waveguide in the weld spot area.
  • the outer tube made of copper and with it the inner tube can be manufactured within a certain time Area to be moved. This may be necessary if copper deposits have formed at one point on the tube.
  • the optical waveguide In the case of optical cables, it is necessary for the optical waveguide to be in the metal tube with a certain excess length in order to keep mechanical loads away from the sensitive optical waveguide when the metal tube is stretched.
  • Such an excess length can be achieved if the metal tube containing the optical waveguide and the petroleum jelly is wound with at least one turn on a take-off disk and then wound onto a supply spool with a slight pull and if the metal tube is between one of the first jaws, the tube reducing tool or the second fixed jaw trigger fixed point and the trigger disc are stretched elastically by a value between 2 and 8 ⁇ and the elastic stretch on the trigger disc is canceled.
  • Fig. 1 shows a perspective view of part of a tube manufactured according to the teaching of the invention.
  • the tube 1 has a longitudinal weld 1a.
  • a preferred application for such longitudinally welded tubes 1 is the protective sheath of an optical cable.
  • One or more optical fibers 2 are then located in the interior of the tube 1.
  • the space between the optical fibers 2 and the metal tube 1 can be filled with petroleum jelly in order to prevent longitudinal water migration.
  • the number of optical fibers 2 is usually between six and twenty in exceptional cases up to forty.
  • the Optical waveguides 2 have a greater length than the metal tube 1, that is to say they run in a wave, helix or sinusoidal shape in the metal tube 1.
  • the excess length is normally approximately 3 ⁇ .
  • the wall thickness 5 of the metal tube is z. B. 0.2 mm while its outer diameter is 3.5 mm. This is typical data for an optical cable, which is placed in a cable instead of a wire.
  • Stainless steel is preferred as the material for the metal tube
  • FIG. 2 shows a side view of a device for carrying out the method according to the invention.
  • a tape 5 is continuously drawn off from a supply reel 4 and fed to a shaping device 6, in which the tape 5 is formed into a tube with a longitudinal slot.
  • Part of this shaping device 6 is an untrimmed trimming device, in which the band 5 is cut exactly to the required width.
  • the shaping device 6 also consists of a plurality of sets of shaping rolls, not specified.
  • the longitudinal slot of the shaped tube is closed by means of a laser welding device 7.
  • a first clamping jaw trigger 8 which consists of a plurality of pairs of clamping jaws comprising the tube, is driven by an endless chain.
  • a pipe reducing device 9 for example a drawing die, is arranged behind the first clamping jaw trigger 8, in which the diameter of the pipe is reduced.
  • a second clamping jaw trigger 10 is arranged behind the pipe reducing device 9, which acts on the drawn pipe and pulls it through the drawing die.
  • the withdrawal speed of the second clamping jaw trigger 10 is regulated in relation to the withdrawal speed of the first clamping jaw trigger 8 as a function of the sag of the tube between the drawing die and the first clamping jaw trigger 8.
  • the finished tube can then be wound onto a rewinder 12.
  • the tube is to be used as a protective cover for optical fibers, it is necessary that behind the second clamping jaw trigger 10 there is a driven trigger disk 11, on the circumferential surface of which the tube rests with several turns.
  • the trigger disk 11 is driven at a trigger speed which is slightly faster than the trigger speed of the second clamping jaw trigger 10.
  • the rewinder 12 winds up the tube 13 with a slight pull.
  • the optical fibers 2 are withdrawn from the coils 15 and inserted into the still open tube in front of the welding device.
  • a stationary metal tube projects into the slotted tube, through the interior of which the optical waveguide 2 is guided.
  • the metal tube releases the optical waveguide 2 at the earliest behind the welding device 7.
  • the metal tube is surrounded by another metal tube.
  • a petroleum jelly is filled into the tube under pressure through the gap formed by the two metal tubes. So that the optical waveguides 2 are excessively long in the metal tube 1, the metal tube 1 is continuously deformed, ie stretched, between the second clamping jaw trigger 10, the clamping jaw pairs of which firmly grip the metal tube 1 and apply the deformation forces resulting from the tube reduction, and the extraction disc 11.
  • the elastic deformation is brought about by a force F which deflects the metal tube 1 between the second clamping jaw trigger 10 and the trigger disc 11.
  • a force F which deflects the metal tube 1 between the second clamping jaw trigger 10 and the trigger disc 11.
  • This is achieved by a weight 16 which is attached to the metal tube 1 e.g. is attached by means of a roller 17.
  • the force F i.e. the weight 16 determines the degree of deflection and thus the degree of elongation.
  • an exact excess length of the optical waveguides 2 can be generated in the tube 1 by selecting the weight 16.
  • FIGS. 3 to 5 show a top view and two sections of the guidance of the metal tube in the area of the welding device.
  • the guide 18 for the metal tube 19 consists of two halves 18a and 18b, each of which has a groove 20 on its adjacent surface with a radius of curvature that corresponds to the radius of curvature of the metal tube 19.
  • the two grooves 20 thus form an essentially circular guide for the metal tube 19.
  • the guide 18 consists of a steel alloy, which has excellent sliding properties compared to the material preferably used stainless steel.
  • a recess 21 is provided in the guide 18, in the area of which the laser beam is directed onto the longitudinal seam 19a of the metal tube 19 and welds it. At the recess 21 there is a gap 22 between the halves 18a and 18b on, which leaves the weld 19b free and thus enables heat dissipation.
  • Figure 4 shows a section along the line A - B, i.e. through the entry area of the guide 18.
  • the tube 24 is provided with an indentation 24a, by means of which the tube 23 is kept away from the longitudinal seam 19a or the weld seam 19.
  • Both the tube 23 and the tube 24 are thin-walled copper tubes which protect both the petroleum jelly and the optical waveguides from excessive heating in the welding area. A possibility of longitudinal displacement in the metal tube 19 is provided for the tubes 23 and 24.
  • Figure 5 shows a section through the guide along the line C-D, i.e. in the exit area of the guide.
  • the gap 22 can be clearly seen here.
  • FIG. 6 shows a section through a pair of clamping jaws 8a of the clamping jaw trigger 8, which firmly clamp the metal tube 19.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)
  • Heat Treatment Of Articles (AREA)
  • Metal Extraction Processes (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Forging (AREA)
  • Coating With Molten Metal (AREA)
  • Arc Welding In General (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
EP95114295A 1994-09-24 1995-09-12 Procédé de fabrication de tuyaux métalliques soudés longitudinalement Expired - Lifetime EP0703017B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4434134 1994-09-24
DE4434134A DE4434134A1 (de) 1994-09-24 1994-09-24 Verfahren zur Herstellung eines längsnahtgeschweißten Metallrohres

Publications (3)

Publication Number Publication Date
EP0703017A2 true EP0703017A2 (fr) 1996-03-27
EP0703017A3 EP0703017A3 (fr) 1996-11-13
EP0703017B1 EP0703017B1 (fr) 2000-04-19

Family

ID=6529082

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95114295A Expired - Lifetime EP0703017B1 (fr) 1994-09-24 1995-09-12 Procédé de fabrication de tuyaux métalliques soudés longitudinalement

Country Status (15)

Country Link
US (1) US5613631A (fr)
EP (1) EP0703017B1 (fr)
JP (1) JP3828599B2 (fr)
KR (1) KR960010109A (fr)
CN (1) CN1068533C (fr)
AT (1) ATE191868T1 (fr)
AU (1) AU686443B2 (fr)
CA (1) CA2158911A1 (fr)
DE (2) DE4434134A1 (fr)
DK (1) DK0703017T3 (fr)
ES (1) ES2145192T3 (fr)
FI (1) FI110997B (fr)
GR (1) GR3033892T3 (fr)
NO (1) NO953752L (fr)
RU (1) RU2139159C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102303202A (zh) * 2011-08-08 2012-01-04 江苏金长江环保汽摩消声器有限公司 消声器管的加工方法

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4434133A1 (de) * 1994-09-24 1996-03-28 Kabelmetal Electro Gmbh Verfahren zur Herstellung eines optischen Kabels aus einem Metallrohr
FR2725530B1 (fr) * 1994-10-07 1996-11-22 Alcatel Submarcom Ensemble de protection contre l'echauffement interne d'un tube metallique contenant au moins une fibre optique et procede de mise en oeuvre
DE19736042A1 (de) * 1997-08-20 1999-02-25 Alsthom Cge Alcatel Vorrichtung zum Längsnahtschweißen von Metallrohren
DE19816998A1 (de) * 1998-04-17 1999-10-21 Alcatel Sa Verfahren zur Herstellung eines optischen Kabels
DE19825423A1 (de) * 1998-06-06 1999-12-09 Alcatel Sa Vorrichtung zur Herstellung eines optischen Kabels
DE10049283A1 (de) * 2000-10-05 2002-04-11 Hueck Folien Gmbh & Co Kg Verfahren und Vorrichtung zur Herstellung einer zylindrischen Prägeform
DE10106195A1 (de) * 2001-02-10 2002-08-14 Nexans France S A Verfahren zur Herstellung längsnahtgeschweißter Rohre
US6688513B2 (en) 2000-10-20 2004-02-10 Nexans Process for producing longitudinally welded tubes
DE10329424B4 (de) * 2003-07-01 2005-04-28 Thyssenkrupp Stahl Ag Verfahren zum Herstellen eines längsgeschlitzten Hohlprofils mit mehreren, im Querschnitt verschiedenen Längsabschnitten aus einer ebenen Blechplatine
NO20041392D0 (no) * 2004-04-02 2004-04-02 Nexans Optisk kabelenhet og fremgangsmate for fremstilling derav
EP1595610B1 (fr) * 2004-05-07 2012-02-29 Nexans Procédé de fabrication en continu de tuyaux métalliques soudés longitudinalement
US9000320B2 (en) * 2005-12-16 2015-04-07 Jfe Steel Corporation Method of manufacturing electric resistance welding pipe having excellent characterization of welded seam
DE102007001766A1 (de) 2007-01-05 2008-07-10 Westfalia Metallschlauchtechnik Gmbh & Co. Kg Verfahren und Vorrichtung zum kontinuierlichen, lasergeschützten Schweißen dünnwandiger, flexibler, rotationssymmetrischer Bauteile
US9194512B2 (en) 2007-04-30 2015-11-24 Mark Andreychuk Coiled tubing with heat resistant conduit
CA2630084A1 (fr) * 2007-04-30 2008-10-30 Mark Andreychuk Tube de production concentrique avec dispositif de retenue pour conduit
WO2009033314A1 (fr) * 2007-09-11 2009-03-19 Fushi International (Dalian) Bimetallic Cable Co., Ltd Dispositif stable pour réalisation de cordons de soudure
WO2013014021A1 (fr) * 2011-07-22 2013-01-31 Ford Global Technologies, Llc Procédé pour souder un élément à souder sur une pièce complémentaire
EP2644311A1 (fr) 2012-03-27 2013-10-02 Nexans Procédé de soudage à l'aide d'un laser
US11344975B2 (en) 2015-04-09 2022-05-31 Siemens Energy, Inc. Optically conductive filler for laser processing
EP3213830A1 (fr) 2016-03-02 2017-09-06 Nexans Procede de fabrication d'un tube en metal
CN106569307A (zh) * 2016-11-03 2017-04-19 江苏中天科技股份有限公司 一种光缆纵包钢带或铝带自动焊接装置用斜向移动装置
CN109909301A (zh) * 2019-03-08 2019-06-21 贺云坤 齿痕轧制机及使用齿痕轧制机制作内螺纹金属管的方法
EP3797891B1 (fr) * 2019-09-30 2023-08-02 Nexans Procédé de fabrication en continu de profilés creux, ondulés par sections, minces, de petit diamètre en metal non ferreux
CN119681464B (zh) * 2025-02-08 2025-08-19 金匠科技(东莞)有限公司 一种用于医疗器械生产的激光切割装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299123A2 (fr) 1987-07-16 1989-01-18 Laser Armor Tech Corporation Appareil et méthode de fabrication continue de câbles optiques armés

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2093378A5 (fr) * 1970-06-12 1972-01-28 Tubest Sa
FR2125246A1 (fr) * 1971-02-11 1972-09-29 Macchi Alberto
US4354090A (en) * 1979-10-23 1982-10-12 Sws Incorporated Z-bar guide apparatus and method of butt welding
JPS58192627A (ja) * 1982-05-07 1983-11-10 Ishikawajima Harima Heavy Ind Co Ltd 電縫管製造における板の剪断成形法及びその装置
EP0115441A3 (fr) * 1983-01-28 1984-12-05 Olin Corporation Procédé et dispositif pour la fabrication de tubes
JPS6044126A (ja) * 1983-08-20 1985-03-09 Sumitomo Light Metal Ind Ltd 溶接管の製造方法
JPS632519A (ja) * 1986-06-23 1988-01-07 Toyo Seikan Kaisha Ltd チユ−ブの製造方法及び装置
DE3632952A1 (de) * 1986-09-27 1988-04-07 Hoesch Ag Verfahren und vorrichtung zur kontinuierlichen herstellung rohrfoermiger koerper mittels laser-laengsnahtschweissung
DE8713471U1 (de) * 1987-10-07 1987-12-03 Rofin-Sinar Laser GmbH, 2000 Hamburg Laserschweißgerät zum Schweißen von Hohlprofilen und Flachprofilen
DE3808728A1 (de) * 1987-12-24 1989-07-06 Franz Anton Schroeder Verfahren zur herstellung eines laengsnahtrohres
DE3842865A1 (de) * 1987-12-24 1989-07-06 Franz Anton Schroeder Verfahren zur herstellung eines laengsnahtrohres
US4995549A (en) * 1988-12-01 1991-02-26 Hellman Sr Robert R Method and apparatus for forming and welding thin-wall tubing
CH678501A5 (fr) * 1989-05-16 1991-09-30 Elpatronic Ag
FR2650081B1 (fr) * 1989-07-24 1991-10-04 Foptica Procede et appareil de fabrication de modules optiques
DE4031825A1 (de) * 1989-10-13 1991-05-08 Cefin Spa Perfektioniertes verfahren zum kontinuierlichen schweissen von zylindrischen dosenkoerpern und eine entsprechende maschine zur durchfuehrung
US5231260A (en) * 1989-12-05 1993-07-27 Nkk Corporation Apparatus for manufacturing metal tube covered optical fiber cable and method therefor
DE4003311A1 (de) * 1990-02-05 1991-08-08 Kabelmetal Electro Gmbh Verfahren zur herstellung eines grundelementes fuer nachrichtenuebertragungskabel mit lichtwellenleitern
DE4006167C1 (en) * 1990-02-23 1991-05-23 Mannesmann Ag, 4000 Duesseldorf, De Steel pipes mfr. - by forming strip into slit tube and welding tube with sides of slit pressed together
CH682730A5 (de) * 1990-08-07 1993-11-15 Elpatronic Ag Schiene zum Führen miteinander zu verschweissender Blechränder.
DE4118004A1 (de) * 1991-06-01 1992-12-03 Kabelmetal Electro Gmbh Verfahren zur herstellung von mit einer schicht aus aluminium plattiertem strangfoermigem gut
JPH0644126A (ja) * 1992-03-25 1994-02-18 Nec Corp ファイル転送装置
DE4307156A1 (de) * 1993-02-12 1994-08-18 Kabelmetal Electro Gmbh Einrichtung zum Herstellen dünnwandiger Metallrohre
US5318215A (en) * 1993-02-23 1994-06-07 Hitachi Cable Ltd. Method of forming cladded cable having fiber with excess length enclosed therein
JPH06280070A (ja) * 1993-03-30 1994-10-04 Showa Electric Wire & Cable Co Ltd メタルコルゲートシースケーブルの製造方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299123A2 (fr) 1987-07-16 1989-01-18 Laser Armor Tech Corporation Appareil et méthode de fabrication continue de câbles optiques armés

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102303202A (zh) * 2011-08-08 2012-01-04 江苏金长江环保汽摩消声器有限公司 消声器管的加工方法

Also Published As

Publication number Publication date
US5613631A (en) 1997-03-25
GR3033892T3 (en) 2000-11-30
JPH08192222A (ja) 1996-07-30
ATE191868T1 (de) 2000-05-15
FI954503A0 (fi) 1995-09-22
NO953752D0 (no) 1995-09-22
KR960010109A (ko) 1996-04-20
AU3281995A (en) 1996-04-04
DK0703017T3 (da) 2000-07-10
ES2145192T3 (es) 2000-07-01
DE59508191D1 (de) 2000-05-25
FI110997B (fi) 2003-05-15
DE4434134A1 (de) 1996-03-28
CN1128685A (zh) 1996-08-14
JP3828599B2 (ja) 2006-10-04
EP0703017B1 (fr) 2000-04-19
CN1068533C (zh) 2001-07-18
FI954503L (fi) 1996-03-25
CA2158911A1 (fr) 1996-03-25
EP0703017A3 (fr) 1996-11-13
AU686443B2 (en) 1998-02-05
RU2139159C1 (ru) 1999-10-10
NO953752L (no) 1996-03-25

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