EP0981414B1 - Procede et installation de fabrication de mats en treillis - Google Patents

Procede et installation de fabrication de mats en treillis Download PDF

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Publication number
EP0981414B1
EP0981414B1 EP99900389A EP99900389A EP0981414B1 EP 0981414 B1 EP0981414 B1 EP 0981414B1 EP 99900389 A EP99900389 A EP 99900389A EP 99900389 A EP99900389 A EP 99900389A EP 0981414 B1 EP0981414 B1 EP 0981414B1
Authority
EP
European Patent Office
Prior art keywords
stretching
extrudate
wire
bars
longitudinal
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
EP99900389A
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German (de)
English (en)
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EP0981414A1 (fr
Inventor
Klaus Ritter
Gerhard Ritter
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.)
EVG Entwicklungs und Verwertungs GmbH
Original Assignee
EVG Entwicklungs und Verwertungs 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
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Publication of EP0981414A1 publication Critical patent/EP0981414A1/fr
Application granted granted Critical
Publication of EP0981414B1 publication Critical patent/EP0981414B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F9/00—Straining wire
    • B21F9/007—Straining wire to induce a plastic deformation of the wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/08—Making wire network, i.e. wire nets with additional connecting elements or material at crossings
    • B21F27/10—Making wire network, i.e. wire nets with additional connecting elements or material at crossings with soldered or welded crossings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F9/00—Straining wire

Definitions

  • the invention relates to a method for producing Lattice mats crossing and at the crossing points welded longitudinal and cross bars made of hot-rolled Steel in which one is used to form the longitudinal bars
  • the strand of material is continuously drawn from a wire supply and improve its mechanical-technological Properties stretched, preferably bent, and the Welding machine is fed, and in which of the formation the strand of material serving continuously from one Wire supply withdrawn and also to improve its mechanical-technological Properties stretched, preferably bend stretched, and passed over a buffer memory as well as each a cross bar of the mesh welding machine, separated from the material strand is supplied in the welding cycle.
  • Subject of The invention is also an installation for carrying out the method.
  • EP-0 780 174 describes a method of the above Kind known in which a plurality of longitudinal wires with a Variety of cross wires is welded, the wires the welding system in the form of wound coils or cut to length Bars can be fed directly from the hot rolling mill.
  • the Wires are cooled and checked in a controlled manner in the hot rolling mill Line with the welding system is subjected to a drawing and stretching deformation, such that the extension of the wire between 1 and is 7% and the yield ratio Rm / Re at least is greater than 1.08.
  • EP-A1-0 806 257 describes a device for improvement the yield strength and ductility of wire are known which the wire over several, staggered, driven Rolling a cold flow device is pulled, wherein by changing the bending direction between the rollers above mentioned material properties of the wire can be improved.
  • Two cold flow devices can also be connected in series be one or both cold flow devices can be driven. If only one cold flow device is driven, becomes the wire between the two cold flow devices stretched even more.
  • the wire can be a device for straightening, cutting and / or welding.
  • the disadvantage here is that due to the required Drive the rollers no other device for improvement the material properties can be used, whereby important information on the implementation of the disclosed process absence.
  • EP-A1-0 806 257 also lacks any Information about the further processing of the wire is essential necessary procedures and facilities. Using of two cold flow devices also finds an undefined one Stretching the wire between the cold flow devices instead of.
  • EP-B1 0 371 956 describes a method and an installation for Feeding longitudinal elements from round or flat material to one Welding machine known for grids or gratings, at after that of at least one longitudinal element material strand Straighten the separated longitudinal elements with the help of a Feeding device of a conveyor and distribution device, in the longitudinal elements according to the desired line wire division arranged in the wire mesh mat to be produced and conveyed together into the feed line of the grid welding machine become. After transfer of the longitudinal elements to a transfer device are the longitudinal elements by the Transfer device into the welding line of the grid welding machine brought.
  • the feed device has a roller or Rotor straightening device and a continuously working Guillotine shears, while processing hot-rolled material the supply device a descaling device and a cold forming device in the form of a drawing and / or Rolling device are connected upstream. It turns out to be disadvantageous that when using hot rolled material either a Katlverform worn or at least a descaling is required. Statements about material improvement the cross wires and their feed to the grid welding machine are not to be found in this document.
  • the object of the invention is the disadvantages described to avoid the known methods and devices and a Procedure and an installation of the type specified in the introduction create that enables the mechanical-technological properties of hot-rolled steel to improve and at the same time great accuracy in processing the material to achieve grid mats.
  • the invention is also intended allow to use hot-rolled steel, its mechanical-technological Properties neither through microalloying through special heat treatment and quenching, e.g. Temporization have been improved.
  • the method according to the invention is characterized in that that the longitudinal rod metarial strand from the wire supply over a spill arranged after the raking device subtracted and trained after the spill and cut to length that then a group of longitudinal bars, as known per se, accordingly the longitudinal bar division in the lattice mat to be produced arranged, moved into the sphere of activity of the grid welding machine and inserted into it, and that the crossbar strand of material also withdrawn from the wire supply via a spill and then trained before severing.
  • This procedure has the main advantage that it also slight speed differences between the Feed device and the stretching device compensates and a ensures high manufacturing accuracy.
  • the improvement preferably takes place within the scope of the invention the mechanical-technological properties of the longitudinal and Cross bars from an increase in ductility, being approximately constant tensile strength an increase in Yield point, a reduction in the tensile strength ratio to yield strength and an increase in uniform elongation.
  • the invention also relates to an implementation of the method according to the invention certain system with Grid welding machine for welding a longitudinal bar share Cross bars, whereby to produce the longitudinal bars in the direction of flow one sequential station for a wire supply, at least a stretching device to increase the ductility of the strand of material, a feed device for continuous pulling of the strand of material from the wire supply through the stretching devices and for producing the cross bars in the flow direction one after the other a drain station for the wire supply, at least one Stretching device to increase the ductility of the strand of material a feed device for continuously pulling the Strands of material from the wire supply through the stretching devices a loop storage and a cross wire scissors for severing the cross bars are provided from the strand of material.
  • This facility has the features that the plant has at least two longitudinal bar production devices has, in which between the stretching device and the feed device a spill and behind the Feed device at least one dressage and a cutting device for separating the longitudinal bars from the material strand and then a distributor and transfer device for the longitudinal bars is provided are, and that behind the drain station for the cross wire between the stretching device and the feed device at least one capstan, behind the capstan a weft device for intermittent intermittent shooting of the cross bars into the grid welding machine and between the weft device and the cross wire shears a dressage are arranged.
  • Each stretching device preferably consists of two rows of staggered bending corner rollers, the Bending corner rolls of at least one row individually or in groups are adjustable towards the other row, and wherein the Diameter of the bending corner rolls according to the diameter of the strand of material to be stretched is selectable.
  • Fig. 1 The system shown in Fig. 1 is used to manufacture Lattice mats crossing and at the crossing points longitudinal bars and cross bars welded together, whereby the rods are made of hot-rolled steel and preferably have a ribbed surface.
  • hot rolled steel all steel qualities are understood within the scope of the invention, by rolling out billets on high-speed wire mills be created with finished blocks, with the wire on the usual adjustments in fan-out rings today cooled and finally collected into bundles. Without that Restricting invention will help to better differentiate the continuous strand of material referred to as line or cross wire, while the longitudinal and Cross elements are called longitudinal or transverse bars.
  • the system shown has at least two devices 1 to produce longitudinal bars cut to length, a distributor device 2 for the longitudinal bars, a transfer device 3 for transfer of the longitudinal bars in a grid welding machine 4 and a device 5 for producing the cross bars and for feeding them into the grid welding machine 4.
  • the grid welding machine 4 works according to the resistance welding method and has a welding device 6 with a series of electrode pairs 7 (Fig. 3), which is along a horizontal, vertical welding line W-W running to the production direction P1 and for welding the crossing points of the cross bars serve with the longitudinal bar share.
  • Each pair of electrodes 7 is made from a lower electrode and from an upper electrode, the in each case below or above the level of the longitudinal bar share are arranged and either individually or together adjustable and with the required welding pressure are.
  • the grid welding machine 4 can be used within the scope of the invention according to the single-point or the double-spot welding process work.
  • the device 1 shown schematically in FIG Generating cut longitudinal rods is seen in the flow direction P2 from a drain station 8 for receiving a wire supply C, for example a coil, from a horizontal stretching device 9 and from a vertical stretching device 10.
  • a wire supply C for example a coil
  • the stretching devices 9, 10 each have two rows of a plurality of bending corner rollers 11 arranged offset from one another on, the bending corner rollers 11 individually and / or in rows are mutually adjustable according to the double arrow P3.
  • the through the axes of the bending corner rollers 11 of the horizontal stretching device 9 is perpendicular to the plane defined by the Bending corner rollers 11 of the vertical stretching device 10 defined Level.
  • the diameter and number of bending rolls 11 each The series are according to the diameter, the mechanical-technological Properties and chemical composition of the selectable wire material to be processed.
  • the bending corner rollers 11 are fed until the desired degree of stretching of preferably 2 to 6%, i.e. a reduction in cross-section of 2 up to 6% in wire L.
  • This stretching makes one Improvement of the mechanical-technological properties of the Longitudinal and cross bars achieved, the tensile strength is approximately remains the same or increases only slightly, the Yield point and the uniform elongation increase considerably and the ratio of tensile strength to yield strength decreases.
  • the ductility of the wire is determined by the stretching significantly increased. The wire can be achieved due to the high achievable Uniformity of its properties and its the stretching of low residual stresses is easier to process.
  • the stretching devices are complete exchange.
  • Other stretching methods can also be used within the scope of the invention come to use, which are suitable, the desired Degree of stretching in wire L and the required improvement the mechanical-technological properties of the wire L reproducible to reach.
  • 10 edge fiber stretching of the wire L of at least 3% the wire L is also descaled sufficiently.
  • the stretching devices 9, 10 are followed by a capstan 12, which is rotatable according to arrow P4 and several Absorbs wire windings.
  • a capstan 12 which is rotatable according to arrow P4 and several Absorbs wire windings.
  • a preferably liquid Pulling means 14 on all sides of the surface of the wire L. applied.
  • the feed device 15 consists preferably of two pairs of according to the arrow P5 drivable feed rollers 16, with a feed roller additionally is designed as a measuring wheel 17.
  • the feed device 15 is a vertical dressage 18 and a horizontal dressage 19 downstream, each of which two rows of several, staggered Dressage roles 20 exist, the dressage roles 20 individually and / or can be adjusted in rows to one another.
  • the diameter and the number of dressage rolls 20 per row can be selected.
  • the dressage rolls 20 are only delivered until the Wire L is straight, but be sure to make sure that those reached in the stretching devices 9, 10 mechanical-technological properties of the wire L not be changed undesirably.
  • a high-speed rotor straightening device be used.
  • a cutting device 21 for example as flying scissors designed according to the double arrow P6 is displaceable and has two interacting knives 22, becomes the line wire L to form the required length bars cut into selectable lengths.
  • the device 5 shown schematically in FIG. 3 for creating the cross bars and for feeding the cross bars in the grid welding machine 4 is seen in the flow direction P2 ' from a drain station 8 'for receiving a wire supply C, for example a coil from a horizontal stretching device 9 'and from a vertical stretching device 10'.
  • the stretching devices 9 ', 10' correspond to those already in FIG. 2 described stretching devices 9 and 10 constructed and have analog bending rollers 11, which are so far delivered to the desired degree of stretching, i.e. a reduction in cross section of preferably 2 to 5% in wire Q is reached.
  • a spill 12 ' is connected downstream of the stretching devices 9', 10 ', which is rotatable according to arrow P4 and several Absorbs wire windings.
  • the wire Q continuously from the wire supply C through the stretching devices 9 ', 10' and deducted via the spill 12 '.
  • the feed device 15 ' consists of preferably two pairs of accordingly the feed rollers 16 which can be driven by the arrow P5 15 'is a loop memory serving as a buffer memory 23 downstream for the cross wire Q.
  • a loop device 24 is the loop memory 23 downstream, which can be driven according to the double arrow P7 Has pair of bullet wheels 25, one bullet wheel is designed as a measuring wheel 17 '. With the help of the bullet device 24 is the cross wire Q by a subsequent one horizontal dressage 26 and a vertical dressage 27 one Cross wire scissors 28 fed to the cross wire Q to form of the required cross bars in selectable lengths.
  • the Dressage 26, 27 are corresponding to those described in Fig. 2 Dressage 18 and 19 built and each have two rows of offset dressage rollers 20.
  • the Dressage rollers 20 are analogous to the procedure for straightening of the longitudinal wire strand L is only fed until the wire Q is directed straight, but be sure to pay attention is that the mechanical-technological achieved in the stretching devices 9 ', 10' Properties of the wire Q are not undesirable to be changed.
  • clamping element 29 can the cross wire Q at a standstill in a defined Position to be clamped.
  • the cross wire accordingly the arrow P8 directly into the welding line W-W of the grid welding machine 4 or in a separate from the welding line W-W Introduce the line of fire, in which case the cut to length Cross bars by means of suitable, not shown Devices moved from the line of entry into the welding line W-W become. Due to the variable size controlled Cross wire loop S in the loop memory 23 is the deduction made continuously by the feed device 15 ' of the cross wire Q with that through the insertion device 24 intermittent intermittent shooting of the crossbar coordinated in the grid welding machine 4.
  • the longitudinal bars produced in the devices 1 are supplied to the distribution device 2 in accordance with the arrow P9 and in this according to the grid mat to be produced required longitudinal bar division filed.
  • the number of required Devices 1 depends on their production speed in relation to the production speed of the Grid welding machine 4 and must ensure that the grid welding machine 4 always enough longitudinal bars available stand.
  • the distribution device 2 promotes the longitudinal rods from the fully illustrated takeover position 2 in the dash-dotted line shown transfer position 2 ', with the center line M-M the longitudinal rod feed plane of the grid welding machine 4 is aligned.
  • the distribution device 2 can for example within the scope of the invention consist of several distribution cars, which accordingly the double arrow P10 between the transfer and transfer positions commute back and forth.
  • the longitudinal bar coulter is from the distributor device 2 ' handover to transfer device 3 according to arrow P11, which correspond to the double arrow P12 parallel to the center line M-M is slidable. From the transfer device 3 Longitudinal bar share according to arrow P13 of the welding device 6 fed to the grid welding machine 4.
  • the cross bars are fed in as described in FIG. 3 according to arrow P8 to the side of the welding line W-W of the grid welding machine 4. It is within the scope of the invention possible to increase the production speed and / or in order to be able to feed cross bars of different dimensions, two devices 5 on one side and / or on both sides the grid welding machine 4 each to arrange a device 5.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Paper (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Sewage (AREA)
  • Metal Rolling (AREA)

Claims (9)

  1. Procédé de fabrication de mats en treillis à partir de barreaux longitudinaux et transversaux en acier laminé à chaud qui se croisent et qui sont soudés entre eux aux points de croisement, dans lequel on enlève en continu une barre de matière (L) servant à former les barreaux longitudinaux à partir d'une réserve de fil (C), et pour améliorer ses propriétés mécaniques-technologiques, on l'étire, de préférence on l'étire avec flexion, et on l'amène à la machine de soudage, et dans lequel on enlève en continu la barre de matière (Q) servant à former les barreaux transversaux à partir d'une réserve de fil (C), et pour améliorer ses propriétés mécaniques-technologiques, on l'étire également, de préférence on l'étire avec flexion, et on la fait passer par un accumulateur tampon (23), et dans lequel on amène un barreau transversal respectif séparé de la barre de matière avec la cadence de soudage à la machine de soudage de treillis, caractérisé en ce que l'on enlève la barre de matière (L) pour les barreaux longitudinaux à partir de la réserve de fil (C) via un cabestan (12), agencé en arrière du dispositif d'étirage, et après le cabestan (12) on la dresse et on la met à longueur, en ce qu'ensuite on déplace un groupe de barreaux longitudinaux agencés, comme connu en soi, en correspondance de la répartition des barreaux longitudinaux dans le mat en treillis à réaliser, jusque dans la zone d'action de la machine de soudage de treillis et on l'introduit dans celle-ci, et en ce que l'on enlève également la barre de matière (Q) pour les barreaux transversaux à partir de la réserve de fil via un cabestan (12') et ensuite on la dresse avant la séparation.
  2. Procédé selon la revendication 1, caractérisé en ce que l'amélioration des propriétés mécaniques-technologiques des barreaux longitudinaux et transversaux consiste en une augmentation de la ductilité, et on réalise une augmentation de la limite d'allongement, une réduction du rapport entre la résistance à la traction et la limite d'allongement et une augmentation de l'allongement uniformément réparti, la résistance à la traction restant approximativement constante.
  3. Installation pour mettre en oeuvre le procédé selon l'une ou l'autre des revendications 1 et 2, comportant une machine de soudage de treillis pour souder un groupe de barreaux longitudinaux avec des barreaux transversaux, dans laquelle sont prévus, pour produire les barreaux longitudinaux, dans le sens du déplacement (P2), successivement une station de déroulement (8) pour une réserve de fil (C), au moins un dispositif d'étirage (9 ; 10) pour augmenter la ductilité de la barre de matière (L), un dispositif d'avance (15) pour enlever en continu la barre de matière (L) à partir de la réserve de fil (C) à travers les dispositifs d'étirage (9, 10), et dans laquelle sont prévus, pour produire les barreaux transversaux, dans le sens du déplacement (P2'), successivement une station de déroulement (8') pour la réserve de fil (C), au moins un dispositif d'étirage (9' ; 10') pour augmenter la ductilité de la barre de matière (Q), un dispositif d'avance (15') pour enlever en continu la barre de matière (Q) à partir de la réserve de fil (C) à travers les dispositifs d'étirage (9' ; 10'), un accumulateur à boucles (23) et une cisaille (28) pour le fil transversal pour séparer les barreaux transversaux de la barre de matière (Q), caractérisée en ce que l'installation comprend au moins deux dispositifs de production de barreaux longitudinaux (1) dans lesquels sont prévus, entre le dispositif d'étirage (9, 10) et le dispositif d'avance (15) un cabestan (12, 12') et en arrière du dispositif d'avance (15) au moins un dispositif de dressage (18, 19) et un dispositif de coupe (21) pour séparer les barreaux longitudinaux de la barre de matière (L) et ensuite un dispositif de distribution et de transfert pour les barreaux longitudinaux, et en ce qu'il est prévu au moins un cabestan (12') en arrière de la station de déroulement pour le fil transversal, entre le dispositif d'étirage et le dispositif d'avance, un dispositif d'insertion en arrière du cabestan pour l'insertion avec cadence intermittente des barreaux transversaux dans la machine de soudage de treillis, et un dispositif de dressage (26, 27) entre le dispositif d'insertion et la cisaille (28) pour le fil transversal.
  4. Installation selon la revendication 3, caractérisée en ce que chaque dispositif d'étirage (9, 9', 10, 10') est constitué par deux rangées de galets d'étirage avec flexion (11) agencés en décalage les uns par rapport aux autres, les galets d'étirage avec flexion (11) d'au moins une rangée étant déplaçables individuellement ou par groupe en direction (P3) de l'autre rangée, et en ce que le diamètre des galets d'étirage avec flexion (11) est susceptible d'être choisi en fonction du diamètre de la barre de matière à étirer (L, Q).
  5. Installation selon la revendication 4, caractérisée en ce que lors de l'utilisation d'un seul dispositif d'étirage (10, 10'), les axes des galets d'étirage avec flexion (11) s'étendent parallèlement à l'axe du cabestan (12, 12').
  6. Installation selon l'une des revendications 3 à 5, caractérisée en ce que le dispositif de dressage (18, 19) du dispositif de production de barreaux longitudinaux (1) est constitué par un dispositif d'alignement à rotor tournant rapidement.
  7. Installation selon l'une des revendications 3 à 5, caractérisée en ce que chaque dispositif de dressage (18, 19, 26, 27) du dispositif de production de barreaux longitudinaux (1) et du dispositif de production de barreaux transversaux (5) est constitué par deux rangées de galets de dressage (20) agencés en décalage les uns par rapport aux autres.
  8. Installation selon l'une des revendications 3 à 7, caractérisée en ce qu'il est prévu en avant du cabestan (12, 12') un dispositif de revêtement (13, 13') pour déposer sur tous les côtés un agent de traction de préférence liquide (14) sur la surface de la barre de matière (L, Q).
  9. Installation selon l'une des revendications 3 à 8, caractérisée en ce qu'il est prévu, de préférence en avant du dispositif d'insertion (24), un élément de pincement (29) pour pincer la barre de matière (Q).
EP99900389A 1998-02-10 1999-01-08 Procede et installation de fabrication de mats en treillis Expired - Lifetime EP0981414B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT23598 1998-02-10
AT0023598A AT407719B (de) 1998-02-10 1998-02-10 Verfahren und anlage zum herstellen von gittermatten
PCT/AT1999/000005 WO1999041029A1 (fr) 1998-02-10 1999-01-08 Procede et installation de fabrication de mats en treillis

Publications (2)

Publication Number Publication Date
EP0981414A1 EP0981414A1 (fr) 2000-03-01
EP0981414B1 true EP0981414B1 (fr) 2002-11-06

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EP99900389A Expired - Lifetime EP0981414B1 (fr) 1998-02-10 1999-01-08 Procede et installation de fabrication de mats en treillis

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EP (1) EP0981414B1 (fr)
AT (2) AT407719B (fr)
DE (1) DE59903300D1 (fr)
ES (1) ES2143971T3 (fr)
WO (1) WO1999041029A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT408196B (de) * 1999-03-02 2001-09-25 Evg Entwicklung Verwert Ges Verfahren und anlage zum herstellen von gittermatten
AT502466B1 (de) * 2004-07-20 2008-02-15 Evg Entwicklung Verwert Ges Verfahren und schweissmaschine zum herstellen von gitterprodukten
NL2009282C2 (en) * 2012-08-03 2014-02-06 Znd Draad B V Method, apparatus and arrangement for manufacturing reinforcement steel, and reinforcement steel manufactured therewith.
GR1008523B (el) 2014-04-01 2015-07-09 Αντωνιος Παναγιωτη Αναγνωστοπουλος Μεθοδος και συστημα τροφοδοσιας διαμηκων συρματων ή μπετοβεργων σε μηχανηματα παραγωγης πλεγματος
AT523692B1 (de) * 2020-03-17 2022-05-15 Evg Entwicklungs U Verwertungs Ges M B H Verfahren und Vorrichtung zur Herstellung von geschweißten Bewehrungsgittern mit hohen Festigkeits- und Dehnwerten

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3326025A (en) * 1964-08-14 1967-06-20 Nishioka Tasaburo Apparatus for alternately bending to draw wire or plate
GB2214846A (en) * 1988-02-20 1989-09-13 Allied Steel Wire Ltd Method and apparatus for treating wire
AT400934B (de) * 1988-11-30 1996-04-25 Evg Entwicklung Verwert Ges Verfahren und anlage zum zuführen von längselementen aus rund- oder flachmaterial zu einer durchlauf-schweissmaschine für gitter oder gitterroste
IT1281466B1 (it) * 1995-12-22 1998-02-18 Impianti Industriali Spa Procedimento di produzione di reti elettrosaldate e relativo dispositivo
NL1003078C2 (nl) * 1996-05-10 1997-11-18 Vms Holding Ag Aangedreven ductiliteit-machine.

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Publication number Publication date
ES2143971T3 (es) 2003-03-01
ATA23598A (de) 2000-10-15
WO1999041029A1 (fr) 1999-08-19
DE59903300D1 (de) 2002-12-12
ES2143971T1 (es) 2000-06-01
EP0981414A1 (fr) 2000-03-01
AT407719B (de) 2001-05-25
ATE227179T1 (de) 2002-11-15

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