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1. WO2013156152 - METHOD AND DEVICE FOR LONGITUDINAL SEAM WELDING OF PROFILED TUBES ON A TUBE WELDING SYSTEM

Publication Number WO/2013/156152
Publication Date 24.10.2013
International Application No. PCT/EP2013/001132
International Filing Date 17.04.2013
Chapter 2 Demand Filed 13.02.2014
IPC
B23K 31/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
31Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups B23K1/-B23K28/193
02relating to soldering or welding
B23K 13/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
13Welding by high-frequency current heating
08Electric supply or control circuits therefor
B23K 13/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
13Welding by high-frequency current heating
01by induction heating
02Seam welding
B23K 13/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
13Welding by high-frequency current heating
04by conduction heating
CPC
B23K 13/025
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
13Welding by high-frequency current heating
01by induction heating
02Seam welding
025for tubes
B23K 13/046
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
13Welding by high-frequency current heating
04by conduction heating
043Seam welding
046for tubes
B23K 13/08
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
13Welding by high-frequency current heating
08Electric supply or control circuits therefor
B23K 31/027
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
31Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
02relating to soldering or welding
027Making tubes with soldering or welding
H04N 5/33
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
30Transforming light or analogous information into electric information
33Transforming infra-red radiation
Applicants
  • SMS MEER GMBH [DE]/[DE]
Inventors
  • NEUGEBAUER, Rüdiger
  • SCHMIDT, Tobias
Agents
  • GROßE, Wolf-Dietrich
Priority Data
10 2012 007 806.418.04.2012DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN UND VORRICHTUNG ZUM LÄNGSNAHTSCHWEISSEN VON PROFILROHREN AUF EINER ROHRSCHWEISSANLAGE
(EN) METHOD AND DEVICE FOR LONGITUDINAL SEAM WELDING OF PROFILED TUBES ON A TUBE WELDING SYSTEM
(FR) PROCÉDÉ ET DISPOSITIF DE SOUDAGE LONGITUDINAL DE TUBES PROFILÉS SUR UNE INSTALLATION DE SOUDAGE DE TUBES
Abstract
(DE)
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Längsnahtschweißen von Profilrohren auf einer zur Prozessregelung mit einem Anlagenrechner verbundenen Rohrschweißanlage, der ein direkt in Linie aus einem Metallband in einem Formwalzwerk geformtes Schlitzrohr (5) oder ein aus mindestens einer Blechtafel umgeformtes Schlitzrohr zum insbesondere HF-Schweißen der Längsnaht bzw. der Längsnähte zugeführt wird, wobei die Rohrschweißmaschine mit einem Mittel (12) zur Messung der Temperatur des Schweißpunktes ausgerüstet ist, der an der engsten Stelle wirksam wird, den die mittels Rollen (8) zu einem Spalt mit sich verjüngendem, V-förmigen Verlauf aneinandergedrückten Blechkanten des Schlltzrohres einnehmen. Die Längsnahtschweißung lässt sich dadurch optimieren, dass Temperaturschwankungen sowie ein Auswandern des Schweißpunktes von einer auf den Scheitel des zusammenlaufenden V-Spalts mit der sich ausbildenden Längsnaht gerichteten Wärmebildkamera (12) ermittelt werden, wobei die kontinuierlich gemessenen Daten im Anlagenrechner (7) zur Ausregelung des Schweißprozesses derart verarbeitet werden, dass sich der Schweißpunkt (11) mit seiner heißesten Wirksamkeit stets auf dergleichen Position befindet.
(EN)
The invention relates to a method and a device for longitudinal seam welding of profiled tubes on a tube welding system which is connected to a system computer for process control, and to which a slotted tube (5) formed directly in line from a metal strip in a roll forming mill, or a slotted tube shaped from at least one sheet metal panel is supplied, in particular, for welding the longitudinal seam or the longitudinal seams, wherein the tube welding machine is equipped with a means (12) for measuring the temperature of the welding point which is effective at the narrowest location and is occupied by the metal edges of the slotted tube pressed together by means of rollers (8) to form a gap with a tapering V shape. The longitudinal seam welding can be optimised in that temperature fluctuations and shifting of the welding point can be detected by a thermal imaging camera (12) directed onto the vertex of the convergent V-shaped gap with the longitudinal seam being formed, wherein the continuously measured data are processed in the system computer (7) for regulating the welding process in such a way that the welding point (11) at the hottest degree of effectiveness thereof is always located at the same position.
(FR)
L'invention concerne un procédé et un dispositif de soudage longitudinal de tubes profilés sur une installation de soudage de tubes reliée à un ordinateur d'installation pour la régulation du processus et à laquelle est amené un tube fendu formé à la presse, directement en ligne à partir d'une bande métallique ou un tube fendu formé à partir d'au moins une plaque de tôle en particulier pour le soudage HF du cordon de soudure longitudinal ou des cordons de soudure longitudinaux. La machine de soudage de tubes est équipée d'un moyen de mesure de la température du point de soudage, qui agit sur la position la plus resserrée qu'occupent les arêtes de tôle du tube fendu pressées les unes contre les autres au moyen de rouleaux pour former une fente selon un tracé en V qui va se rétrécissant. Le soudage longitudinal peut être optimisé par le fait que des variations de température ainsi qu'une migration du point de fusion sont déterminées par une caméra thermique orientée sur le sommet de la fente convergente en V présentant le cordon de soudage en formation. Les données mesurées continuellement dans l'ordinateur de l'installation pour la régulation du processus de soudage sont traitées de telle sorte que l'efficacité thermique du point de soudage est toujours localisée au même emplacement.
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