WO2002087804A1 - Method and device for semi-automatic on-site production of metal tanks - Google Patents

Method and device for semi-automatic on-site production of metal tanks Download PDF

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Publication number
WO2002087804A1
WO2002087804A1 PCT/FR2001/001312 FR0101312W WO02087804A1 WO 2002087804 A1 WO2002087804 A1 WO 2002087804A1 FR 0101312 W FR0101312 W FR 0101312W WO 02087804 A1 WO02087804 A1 WO 02087804A1
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WO
WIPO (PCT)
Prior art keywords
sheet metal
welding
bending
ferrule
sheet
Prior art date
Application number
PCT/FR2001/001312
Other languages
French (fr)
Inventor
Colbert Briancon
Original Assignee
Société HOLDING FINANCIERE C.T. SARL
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 Société HOLDING FINANCIERE C.T. SARL filed Critical Société HOLDING FINANCIERE C.T. SARL
Priority to EP01929745A priority Critical patent/EP1381480B1/en
Priority to PCT/FR2001/001312 priority patent/WO2002087804A1/en
Priority to AT01929745T priority patent/ATE275012T1/en
Priority to ES01929745T priority patent/ES2228855T3/en
Priority to DE60105323T priority patent/DE60105323T2/en
Publication of WO2002087804A1 publication Critical patent/WO2002087804A1/en

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Classifications

    • 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
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/18—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like

Definitions

  • the invention relates to a method and a device for semi-automatic production, on site, of large-capacity cylindrical metal tanks.
  • a method and a device are already known for producing cylindrical tanks and ferrules from sheet metal, such as those described in European patent n ° 0136581 with which the ferrules are obtained by plating strips of sheet metal against the edge of a turntable, of appropriate diameter, on which the said strips are introduced progressively as the reel unwinds and the sheet metal straightens.
  • This method and this device can however only be used for the production of thin ferrules, taking into account the flexibility of the sheet required by this forming method.
  • f) Repeat operations (c) (d) and (e) as many times as necessary to obtain the desired tank height.
  • the ferrules are produced by bending, bending, as the drive and unwinding of the sheet metal coil progress.
  • the sheet metal strip is progressively secured to the preceding coil, which it drives in rotation, this securing being preceded by an equally progressive abutment of this preceding ferrule on the edge of the strip of sheet metal being scrolled until complete completion of this next ferrule.
  • the bending of the sheet metal strip, according to the required radius, is constantly ensured, as it is driven and scrolled.
  • the device for applying the process mentioned above is mainly characterized by the use of means for driving and bending a strip of sheet metal from a roller and rollers associated with lifting cylinders distributed regularly over a circumference to constitute a merry-go-round, of diameter corresponding to that of the ferrules to be produced, intended to gradually support the sheet after bending, the sheet being driven by a tractor with motorized rollers.
  • the object of the present invention is to remedy these drawbacks.
  • This invention as characterized in the claims, solves the problem of defining a method and creating a device allowing semi-automatic production in a very short time, by a very small number of specialized workers, of high capacity sheet metal, from rolls of commercial sheet metal.
  • the device according to the invention allowing the application of the process described above, is mainly characterized in that all the means used for the unwinding, straightening, forming, driving, cutting, welding and lifting, are managed by a programmable automaton, remotely controllable by a wireless control unit, respecting predetermined data.
  • the position of the electrodes of the welding devices is controlled by detectors connected to a monitor which measures and displays, in real time, any position deviations with a view to their immediate cancellation.
  • Figure 7 shows a schematic elevational view of a tank in progress.
  • Figure 8 shows a schematic partial top view of a ferrule in progress.
  • FIG. 9 shows a top view of the unwinding system for cutting, docking and welding.
  • the device for producing tanks mainly comprises a carousel 10 consisting of a base 11 on which jacks 12 are mounted associated with rollers 13, as well as an unwinder 20 consisting of a frame 21, with leveling cylinder supporting the reel holder, as well as the unwinding and bending machine 30 essentially consisting of three rollers 31, 32, 33 including one fixed and motorized 31, a motorized mobile 32, or vice versa, ensuring the pinching of the sheet 41 against the fixed roller 31, under the action of a jack 34, and a non-motorized mobile 33 ensuring the bending of the sheet 41, with control of the bending radius and of the movement of the sheet 41 by means, on the one hand, as regards the control of the bending radius, of a proximity detector 50, placed at the top and in alignment with the bisector of the obtuse angle, formed by two arms secured to each other and comprising, at their free end, a calibrated roller, said calibrated rollers being permanently biased against the outer face of the sheet by a
  • a first ferrule 42 is first produced by driving the sheet 41 of the coil 40 by the fixed rollers 31 and motorized presser 32 and bending of said sheet 41 by the bending roller 33, which is positioned as a function of the radius to be obtained.
  • the assembly consisting, after welding, of the ferrules 42 and 43 and of the roof 44 can be raised again using the jacks 12 associated with the rollers constituting the merry-go-round, with a view to adding a third ferrule , proceeding as illustrated in Figures 3 to 6.
  • the sheet metal strip 41 is engaged, as we have just seen, under the first ferrule 42, then docked using the rollers 81, 82 of the station d 'docking 80, which thus presses the ferrule 42 and the sheet metal strip 41.
  • a welding station 90 provides automatic spot welding, as the advancement of prison.
  • the running of the sheet metal strip 41 is stopped before each post of the carousel 10, the jack 12 supporting the ferrule is lowered, the strip advances to the next post, and so on.
  • the cornice welding ensuring the connection and the seal between the two ferrules 42 and 43 is carried out automatically by a fixed station (not shown).
  • the ferrule turns on itself using motorized roller tractors 100, as well as under the action of motorized rollers 81, 82 of the docking station 80.
  • an automatic function positions the bending roller 33 by means of the jack 35, after engagement of the end of the sheet metal strip 41 under the said roller 33.
  • the sheet metal strip 41 is introduced onto the roundabout 10, after passing in front of the control rectifying means 23, 36, 37 of the bending and scrolling radius 31, 32, 33 which will now be mentioned.
  • the position of the bending roller 33 is controlled by the proximity detector 50, which precisely measures the distance separating it from the external surface of the sheet metal strip 41, which makes it possible to obtain, by subtraction, the exact measurement between the calibrated support rollers of the deflection communicated to the sheet metal strip by the bending roller 33. Corrections, more or less, are thus permanently transmitted automatically to the system supply to the jack 35, ensuring the positioning of the bending roller 33.
  • the coding wheel 60 continuously transmits to the programmable controller by means of an incremental generator for example, which it drives, the exact length of sheet metal strip 41 already formed, in order to control, at the appropriate time, the precise stopping of the drive of the motorized rollers 31 and 32, preceding the command to initiate the cutting by the transve cutting station rsale 70, consisting of a slide 71 with motorized carriage 72, supporting a cutting tool 73.
  • an incremental generator for example, which it drives, the exact length of sheet metal strip 41 already formed, in order to control, at the appropriate time, the precise stopping of the drive of the motorized rollers 31 and 32, preceding the command to initiate the cutting by the transve cutting station rsale 70, consisting of a slide 71 with motorized carriage 72, supporting a cutting tool 73.
  • the actuators 12 for operating the scroll rollers 13 and the tabs must be of strictly identical characteristics and that the oil flow rates to which they are subjected, both at the inlet and at the outlet, must be perfectly controlled in order to obtain very precise strokes of the cylinder rods.

Abstract

The invention concerns a method whereby a steel strip (41) derived from a roll is gradually straightened out, cambered and engaged on rollers (13) supported on cylinders (12), until, after the corresponding perimeter is obtained, the ends are separated and welded together, then in lifting with the actuators (12) said first hoop to a height sufficient for production, then gradually assembling by welding a second hoop by the above process. All those operations are managed by a programmable automaton.

Description

Procédé et dispositif de réalisation semi-automatique, jïiejâSemi-automatic production method and device, jïiejâ
L'invention concerne un procédé et un dispositif de réalisation semi-automatique, sur sites, de réservoirs métalliques cylindriques de grande capacité.The invention relates to a method and a device for semi-automatic production, on site, of large-capacity cylindrical metal tanks.
Des problèmes d'ordre économique se posant pour la réalisation de réservoirs en acier de grand diamètre, du fait qu'il est exclu, pour des raisons d'encombrement, de les réaliser ailleurs que sur sites, les constructeurs sont contraints d'ouvrir un chantier spécifique sur les lieux mêmes de l'implantation, en déplaçant une équipe parfois importante d'ouvriers spécialisés (chaudronniers industriels, soudeurs etc.) ne disposant, pour mener à bien leur tâche, que d'un matériel de base, facilitant le formage, l'oxycoupage et le soudage de plaques de tôle dont les dimensions doivent être limitées, pour faciliter la manutention et l'assemblage. Il résulte de cela une perte de temps se traduisant par des prix de revient élevés et des problèmes , quant au respect du délai imposé par le donneur d'ordre, relativement au planning préalablement établi avec les représentants des autres corps de métier.Economic problems arising for the production of large diameter steel tanks, because it is excluded, for reasons of space, to realize them elsewhere than on site, manufacturers are forced to open a specific site on the site of the establishment, by moving a sometimes large team of specialized workers (industrial boilermakers, welders, etc.) who only have basic equipment to carry out their task, facilitating training , flame cutting and welding of sheet metal plates whose dimensions must be limited, to facilitate handling and assembly. It results from this a waste of time resulting in high cost prices and problems, as for the respect of the deadline imposed by the principal, relative to the planning previously established with the representatives of the other trades.
On connaît déjà un procédé et un dispositif de réalisation de réservoirs cylindriques et de viroles à partir de tôle, tels que ceux décrits dans le brevet européen n° 0136581 avec lesquels les viroles sont obtenues par plaquage de bandes de tôle contre le rebord d ' un plateau tournant, de diamètre approprié, sur lequel les dites bandes sont introduites progressivement au fur et à mesure du déroulement de la bobine et du redressement de la tôle.A method and a device are already known for producing cylindrical tanks and ferrules from sheet metal, such as those described in European patent n ° 0136581 with which the ferrules are obtained by plating strips of sheet metal against the edge of a turntable, of appropriate diameter, on which the said strips are introduced progressively as the reel unwinds and the sheet metal straightens.
Ce procédé et ce dispositif ne peuvent cependant être utilisés que pour la réalisation de viroles de faible épaisseur, compte-tenu de la flexibilité de la tôle exigée par ce mode de formage.This method and this device can however only be used for the production of thin ferrules, taking into account the flexibility of the sheet required by this forming method.
On connaît aussi un procédé et un dispositif de réalisation semi-automatique de réservoirs et de viroles correspondant au préambule de la revendication 1 (Brevet européen n° 0727264). Le procédé consiste à effectuer, dans l'ordre, les opérations suivantes :There is also known a process and a device for semi-automatic production of reservoirs and ferrules corresponding to the preamble of claim 1 (European patent n ° 0727264). The method consists in carrying out, in order, the following operations:
a) Réalisation d'une première virole. b) Mise en place et solidarisation d'un toit sur la première virole. c) Levage de l'ensemble réalisé à l'opération précédente à une hauteur correspondant à la largeur de la bande de tôle. d) Réalisation d'une seconde virole sous le premier . e) Solidarisation progressive de la virole réalisée à l'opération (a) à celle réalisée à l'opération précédente (d). f) Répétition des opérations (c) (d) et (e) autant de fois que nécessaire pour obtenir la hauteur de cuve désirée. g) Mise en place de l'ensemble, réalisé en suivant les opérations ci-dessus sur un fond de diamètre correspondant et solidarisation de celui-ci à la dernière virole.a) Creation of a first ferrule. b) Installation and securing of a roof on the first shell. c) Lifting of the assembly carried out in the previous operation to a height corresponding to the width of the sheet metal strip. d) Creation of a second ferrule under the first. e) Progressive joining of the shell made in operation (a) to that made in the previous operation (d). f) Repeat operations (c) (d) and (e) as many times as necessary to obtain the desired tank height. g) Installation of the assembly, carried out by following the above operations on a diameter bottom corresponding and joining it to the last shell.
Les viroles sont réalisées par cintrage, cambrage, au fur et à mesure de 1 ' entraînement et du déroulement de la bobine de tôle. Lors de la réalisation d'une virole, directement sous la précédente, la bande de tôle est progressivement solidarisée à la bobine précédente, qu'elle entraîne en rotation, cette solidarisation étant précédée d'une mise en appui tout aussi progressive de cette virole précédente sur le chant de la bande de tôle en cours de défilement jusqu'à réalisation complète de cette virole suivante. Le contrôle du cambrage de la bande de tôle, selon le rayon exigé, est assuré en permanence, au fur et à mesure de l'entraînement et du défilement de celle-ci.The ferrules are produced by bending, bending, as the drive and unwinding of the sheet metal coil progress. During the production of a ferrule, directly under the previous one, the sheet metal strip is progressively secured to the preceding coil, which it drives in rotation, this securing being preceded by an equally progressive abutment of this preceding ferrule on the edge of the strip of sheet metal being scrolled until complete completion of this next ferrule. The bending of the sheet metal strip, according to the required radius, is constantly ensured, as it is driven and scrolled.
Le dispositif d'application du procédé ci-dessus évoqué, est caractérisé principalement par l'utilisation de moyens d'entraînement et de cambrage d'une bande de tôle provenant d'un rouleau et de galets associés à des vérins de levage répartis régulièrement sur une circonférence pour constituer un manège, de diamètre correspondant à celui des viroles à réaliser, destiné à soutenir progressivement la tôle après cambrage, la tôle étant entraînée par un tracteur à galets motorisés .The device for applying the process mentioned above is mainly characterized by the use of means for driving and bending a strip of sheet metal from a roller and rollers associated with lifting cylinders distributed regularly over a circumference to constitute a merry-go-round, of diameter corresponding to that of the ferrules to be produced, intended to gradually support the sheet after bending, the sheet being driven by a tractor with motorized rollers.
Si le procédé et le dispositif tels qu'ils viennent d ' être décrits , permet indéniablement la réalisation des viroles directement à partir de rouleaux de tôle, en respectant de façon suffisamment précise le rayon exigé et la concordance de viroles afin d'obtenir une étanchéité rigoureuse à chaque niveau, ils ne permettent cependant pas, à eux seuls, de réduire l'effectif de l'équipe d'ouvriers spécialisés ni d'avoir une influence déterminante sur la durée de la réalisation.If the method and the device as they have just been described, undeniably allows the production of the ferrules directly from sheet metal rolls, while respecting the radius sufficiently precisely required and the concordance of ferrules in order to obtain a rigorous seal at each level, they do not, however, by themselves, reduce the number of skilled workers or have a decisive influence on the duration of achievement.
La présente invention a pour but de remédier à ces inconvénients. Cette invention telle qu'elle est caractérisée dans les revendications, résout le problème consistant à définir un procédé et à créer un dispositif permettant la réalisation semi-automatique dans un temps très court, par un effectif d'ouvriers spécialisés très réduit, de réservoirs de tôle de grande capacité, à partir de rouleaux de tôle du commerce.The object of the present invention is to remedy these drawbacks. This invention as characterized in the claims, solves the problem of defining a method and creating a device allowing semi-automatic production in a very short time, by a very small number of specialized workers, of high capacity sheet metal, from rolls of commercial sheet metal.
Le procédé de réalisation sur sites de réservoirs métalliques cylindriques de grande capacité, à partir de bobines de tôle mettant en œuvre un moyen d'entraînement, de cambrage et de défilement de la bande de tôle ainsi que des moyens de découpe transversale, d'accostage et de soudage longitudinal des bandes de tôle, consistant à réaliser les viroles par cintrage, cambrage progressif en fonction du diamètre recherché, au fur et à mesure de 1 ' entraînement et du déroulement de la bande de tôle et à réaliser successivement les viroles du haut vers le bas en réalisant chacune d'elles directement sous la précédente en entraînant celle-ci en rotation par solidarisation progressive de la bande de tôle en cours de formage, cette solidarisation étant précédée d'une mise en appui tout aussi progressive de la virole précédente sur le chant de la bande de tôle au cours du défilement jusqu'à réalisation complète de la virole suivante, le toit étant fixé sur le chant supérieur de la première virole après réalisation de celle-ci ou des deux premières viroles ; la paroi étant solidarisée au fond dès que celle-ci a atteint la hauteur désirée, se caractérise, selon l'invention, principalement :The process for producing large-capacity cylindrical metal tanks on sites, from sheet metal coils using a means for driving, bending and running the sheet metal strip as well as means for transverse cutting, docking and longitudinal welding of the sheet metal strips, consisting of making the ferrules by bending, progressive bending as a function of the desired diameter, as the drive and the unwinding of the sheet metal strip progressively and successively making the ferrules from the top downwards by making each of them directly under the previous one by driving the latter in rotation by progressive joining of the sheet metal strip during forming, this joining being preceded an equally progressive pressing of the previous ferrule on the edge of the sheet metal strip during the scrolling until complete completion of the following ferrule, the roof being fixed on the upper edge of the first ferrule after completion of this or the first two ferrules; the wall being secured to the bottom as soon as it has reached the desired height, is characterized, according to the invention, mainly:
1°) en ce que la réalisation des viroles est précédée des opérations suivantes :1) in that the production of the ferrules is preceded by the following operations:
a) Réalisation d'un fond par oxycoupage circulaire d'un assemblage de bandes de tôle préalablement solidarisées latéralement par référence à un point C, déterminé arbitrairement sur la surface de cet assemblage de tôles .a) Realization of a bottom by circular flame cutting of an assembly of sheet metal strips previously joined laterally by reference to a point C, determined arbitrarily on the surface of this assembly of sheets.
b) Matérialisation de l'axe de symétrie des viroles par soudage d'un dispositif de référence d'axe vertical Y coïncidant exactement avec le point C défini sur la surface du fond à l'étape précédente.b) Materialization of the axis of symmetry of the ferrules by welding of a vertical axis reference device Y exactly coinciding with the point C defined on the bottom surface in the previous step.
c) Positionnement précis, par rapport à l'axe Y du dispositif de référence, de tous les moyens concourant à l'entraînement, au défilement, au guidage, à 1 ' accostage et au soudage des bandes de tôle et au levage de l'ensemble au fur et à mesure de la réalisation. 2°) En ce que la position verticale des galets de défilement des moyens de levage est contrôlée à distance de façon très précise, individuellement et collectivement, en fonction de la progression des opérations d'assemblage et des séquences imposées par celles-ci.c) Precise positioning, relative to the Y axis of the reference device, of all the means contributing to the drive, to the travel, to the guidance, to the docking and to the welding of the sheet metal strips and to the lifting of the together as and when they are made. 2) In that the vertical position of the scrolling rollers of the lifting means is controlled remotely very precisely, individually and collectively, as a function of the progress of the assembly operations and the sequences imposed by them.
3°) En ce que la position respective des dispositifs de soudage interne et externe est indiquée en permanence de façon très précise au cours de leur utilisation, avec indication immédiate des décalages pouvant apparaître entre les deux dispositifs, afin que ce décalage puisse être immédiatement annulé en vue de conserver en permanence une parfaite concordance des points de soudure interne et externe lors de la progression de ce cordon de soudure en corniche.3 °) In that the respective position of the internal and external welding devices is permanently indicated very precisely during their use, with immediate indication of the offsets that may appear between the two devices, so that this offset can be immediately canceled in order to permanently maintain perfect concordance of the internal and external welding points during the progression of this weld bead in the ledge.
4°) En ce que la solidarisation par soudage du toit sur le chant correspondant de la virole supérieure est accompagnée de la rotation de l'ensemble sur 360° à une vitesse contrôlée compatible avec la progression idéale du cordon de soudure.4 °) In that the joining by welding of the roof on the corresponding edge of the upper shell is accompanied by the rotation of the assembly over 360 ° at a controlled speed compatible with the ideal progression of the weld bead.
5°) En ce que le soudage de l'ensemble sur le fond est précédé de la mise en appui sur taquets mobiles du chant libre de la virole inférieure, du démontage des galets de défilement, du déplacement coordonné vers le bas des dits taquets mobiles jusqu'à mise en appui dudit chant libre de la virole inférieure, sur le pourtour du fond, puis de l'évacuation par le trou d'homme des équipements inutilisables pour cette opération finale.5 °) In that the welding of the assembly on the bottom is preceded by the pressing on movable cleats of the free edge of the lower ferrule, the disassembly of the scroll rollers, the coordinated movement downwards of said movable cleats until the said free edge of the lower ferrule rests on the periphery of the bottom, then the discharge through the hole of man unusable equipment for this final operation.
Le dispositif, selon l'invention, permettant l'application du procédé ci-dessus exposé, se caractérise principalement en ce que tous les moyens utilisés pour le déroulement, le redressement, le formage, l'entraînement, la découpe, le soudage et le levage, sont gérés par un automate programmable, contrôlable à distance par un boîtier de commande sans fil, en respectant des données prédéterminées.The device according to the invention, allowing the application of the process described above, is mainly characterized in that all the means used for the unwinding, straightening, forming, driving, cutting, welding and lifting, are managed by a programmable automaton, remotely controllable by a wireless control unit, respecting predetermined data.
La position des électrodes des dispositifs de soudage est contrôlée par des détecteurs reliés à un moniteur qui mesure et affiche, en temps réel, les éventuels écarts de position en vue de leur annulation immédiate .The position of the electrodes of the welding devices is controlled by detectors connected to a monitor which measures and displays, in real time, any position deviations with a view to their immediate cancellation.
Les avantages obtenus, grâce à cette invention, consistent essentiellement en ce que tous les paramètres de formage, de découpage, d'assemblage et de soudage sont déterminés préalablement de façon très précise et introduits dans l'automate programmable avant l'ouverture du chantier, tout en laissant aux opérateurs le contrôle de la totalité du déroulement du processus par l'intermédiaire de moyens de commande à distance non filaires, ce qui permet donc bien de ne déplacer sur sites qu'un nombre très limité de personnes, réduit le plus souvent à trois, tout en diminuant le temps de réalisation étant donnéThe advantages obtained, thanks to this invention, essentially consist in that all the parameters of forming, cutting, assembly and welding are determined very precisely beforehand and introduced into the programmable controller before the opening of the site, while leaving operators control of the entire process by means of non-wired remote control means, which therefore makes it possible to move only a very limited number of people to sites, most often reduced to three, while reducing the completion time given
1 ' élimination préalable des temps morts antérieurs résultant de la préparation des réglages, des manutentions et des tâtonnements .1 prior elimination of previous downtime resulting from the preparation of adjustments, handling and trial and error.
D'autres caractéristiques et avantages apparaîtront dans la description qui va suivre d'un procédé et d'un dispositif de réalisation de cuves destinées à l'industrie chimique, donnés à titre d'exemple non limitatif au regard des dessins annexés, sur lesquels:Other characteristics and advantages will appear in the following description of a process and a device for producing tanks intended for the chemical industry, given by way of nonlimiting example with regard to the appended drawings, in which:
- Les figures 1 à 6 illustrent schématiquement les principales étapes du procédé.- Figures 1 to 6 schematically illustrate the main steps of the process.
La figure 7 représente une vue en élévation schématique d'une cuve en cours de réalisation.Figure 7 shows a schematic elevational view of a tank in progress.
La figure 8 représente une vue de dessus schématiquement partielle d'une virole en cours de réalisation.Figure 8 shows a schematic partial top view of a ferrule in progress.
- La figure 9 représente une vue de dessus du système de déroulement de cambrage de découpage, d'accostage et de soudage.- Figure 9 shows a top view of the unwinding system for cutting, docking and welding.
Le dispositif de réalisation de cuves, selon l'invention, comporte principalement, un manège 10 constitué d'un fond 11 sur lequel sont montés des vérins 12 associés à des galets 13, ainsi qu'une dérouleuse 20 constituée d'un châssis 21, avec vérin de mise à niveau supportant le porte bobine, ainsi que la machine de déroulement et de cambrage 30 constituée, essentiellement, de trois rouleaux 31, 32, 33 dont un fixe et motorisé 31, un mobile motorisé 32, ou inversement, assurant le pincement de la tôle 41 contre le rouleau fixe 31, sous l'action d'un vérin 34, et un mobile non motorisé 33 assurant le cintrage de la tôle 41, avec contrôle du rayon de cintrage et du défilement de la tôle 41 par l'intermédiaire, d'une part, pour ce qui concerne le contrôle de rayon de cintrage, d'un détecteur de proximité 50, disposé au sommet et dans l'alignement de la bissectrice de l'angle obtus, formé par deux bras solidarisés l'un à l'autre et comportant, à leur extrémité libre, un galet calibré, les dits galets calibrés étant rappelés en permanence contre la face extérieure de la tôle par un compas rappelé en position d'ouverture par un vérin à gaz, et d'autre part, pour ce qui concerne le contrôle du défilement de la tôle 41, d'une roue codeuse 60 rappelée contre la face extérieure de la tôle 41 par un bras articulé par rapport à l'axe de liaison de l'extrémité de la tige du vérin à gaz à l'élément articulé du compas, un poste de découpe transversale 70, un poste d'accostage de tôle 80 constitué de galets 81 situés à l'extérieur du manège 10 et de galets 82 situés à l'intérieur de celui-ci, en concordance les uns par rapport aux autres, un poste de soudage longitudinal 90, à dispositif de soudage interne 91 et externe 92 et un tracteur à galets motorisés 100.The device for producing tanks, according to the invention, mainly comprises a carousel 10 consisting of a base 11 on which jacks 12 are mounted associated with rollers 13, as well as an unwinder 20 consisting of a frame 21, with leveling cylinder supporting the reel holder, as well as the unwinding and bending machine 30 essentially consisting of three rollers 31, 32, 33 including one fixed and motorized 31, a motorized mobile 32, or vice versa, ensuring the pinching of the sheet 41 against the fixed roller 31, under the action of a jack 34, and a non-motorized mobile 33 ensuring the bending of the sheet 41, with control of the bending radius and of the movement of the sheet 41 by means, on the one hand, as regards the control of the bending radius, of a proximity detector 50, placed at the top and in alignment with the bisector of the obtuse angle, formed by two arms secured to each other and comprising, at their free end, a calibrated roller, said calibrated rollers being permanently biased against the outer face of the sheet by a compass returned to the open position by a gas spring, and secondly, as regards the control of the movement of the sheet 41, of a coding wheel 60 biased against the outer face of the sheet 41 by an arm articulated with respect to the axis of connection of the end of the rod of the gas spring to the articulated element of the compass, a transverse cutting station 70, a sheet docking station 80 consisting of rollers 81 located outside the carousel 10 and rollers 82 situated inside the latter, in concordance with each other, a longitudinal welding station 90, with internal 91 and external welding device 92 and a motorized roller tractor 100.
En examinant plus en détail les figures 1 à 6, illustrant les principales étapes du procédé utilisé, à la lumière des figures 7, 8 et 9, on remarque qu'une première virole 42 est tout d'abord réalisée par entraînement de la tôle 41 de la bobine 40 par les rouleaux fixe 31 et presseur 32 motorisés et cintrage de la dite tôle 41 par le rouleau cintreur 33, qui est positionné en fonction du rayon à obtenir. L'amorce de la virole étant ainsi faite, il est alors nécessaire de faire le point zéro du déroulement par la coupe précise du début de bande, puis de faire défiler celle-ci avec engagement successif sur les galets 13 du manège 10, jusqu'à ce que le périmètre correspondant au diamètre choisi soit atteint, le poste de découpe 70 sectionne alors la bande de tôle 41 pour la séparer de la bobine 40, l'assemblage vertical et la soudure correspondante sont alors réalisés, la première virole 42 est alors terminée. Il suffit ensuite comme le montre la figure 2, de souder un toit 44, puis, selon la figure 3, d'assurer le levage de l'ensemble, à l'aide des vérins 12 et des galets 13, d'une hauteur correspondant à la largeur d'une bande de tôle, pour permettre, par engagement successif, la présentation d'une nouvelle bande de tôle 41 sur les galets 13 des vérins 12 progressivement abaissés, au fur et à mesure du défilement de la tôle 41, comme le montrent les figures 4 et 5 , pour obtenir la réalisation d'une seconde virole 43, supportant entièrement la première virole 42 équipée de son toit 44, comme le montre la figure 6, ceci en procédant en tous points comme cela a été indiqué ci-dessus pour la réalisation de ladite première virole 42.By examining Figures 1 to 6 in more detail, illustrating the main steps of the process used, in the light of Figures 7, 8 and 9, it is noted that a first ferrule 42 is first produced by driving the sheet 41 of the coil 40 by the fixed rollers 31 and motorized presser 32 and bending of said sheet 41 by the bending roller 33, which is positioned as a function of the radius to be obtained. The initiation of the ferrule being thus made, it is then necessary to make the zero point of the course by the precise cut from the start of the strip, then to scroll it with successive engagement on the rollers 13 of the carousel 10, until the perimeter corresponding to the chosen diameter is reached, the cutting station 70 then cuts the sheet metal strip 41 to separate it from the coil 40, the vertical assembly and the corresponding welding are then carried out, the first ferrule 42 is then completed. Then, as shown in FIG. 2, it suffices to weld a roof 44, then, according to FIG. 3, to ensure the lifting of the assembly, using the jacks 12 and the rollers 13, of a corresponding height. to the width of a strip of sheet metal, to allow, by successive engagement, the presentation of a new strip of sheet metal 41 on the rollers 13 of the jacks 12 progressively lowered, as the sheet metal 41 travels, as show in Figures 4 and 5, to obtain the realization of a second ferrule 43, fully supporting the first ferrule 42 equipped with its roof 44, as shown in Figure 6, this by proceeding in all respects as indicated above above for the production of said first ferrule 42.
On comprend que l'ensemble constitué, après soudage, des viroles 42 et 43 et du toit 44 peut être à nouveau soulevé à l'aide des vérins 12 associés aux galets constituant le manège, en vue de l'adjonction d'une troisième virole, en procédant comme illustré aux figures 3 à 6. Lors du déroulage à nouveau, pour réaliser la ou les viroles additionnelles 43, la bande de tôle 41 est engagée, comme on vient de le voir, sous la première virole 42, puis accostée à l'aide des galets 81, 82 du poste d'accostage 80, qui viennent ainsi presser la virole 42 et la bande de tôle 41. Après le franchissement du dernier galet du poste d'accostage 80, un poste de soudure 90 assure le soudage par points automatiques , à mesure de 1 ' avancement de la tôle. Le défilement de la bande de tôle 41 est arrêté avant chaque poteau du manège 10, le vérin 12 supportant la virole est descendu, la bande avance jusqu'au poteau suivant, et ainsi de suite. La soudure en corniche assurant la liaison et 1 ' étanchéité entre les deux viroles 42 et 43, est réalisée automatiquement par une station fixe (non représentée) .It is understood that the assembly consisting, after welding, of the ferrules 42 and 43 and of the roof 44 can be raised again using the jacks 12 associated with the rollers constituting the merry-go-round, with a view to adding a third ferrule , proceeding as illustrated in Figures 3 to 6. During the unwinding again, to make the additional ferrule (s) 43, the sheet metal strip 41 is engaged, as we have just seen, under the first ferrule 42, then docked using the rollers 81, 82 of the station d 'docking 80, which thus presses the ferrule 42 and the sheet metal strip 41. After crossing the last roller of the docking station 80, a welding station 90 provides automatic spot welding, as the advancement of prison. The running of the sheet metal strip 41 is stopped before each post of the carousel 10, the jack 12 supporting the ferrule is lowered, the strip advances to the next post, and so on. The cornice welding ensuring the connection and the seal between the two ferrules 42 and 43 is carried out automatically by a fixed station (not shown).
Pendant ces opérations , la virole tourne sur elle-même à l'aide de tracteurs à galets motorisés 100, ainsi que sous l'action des galets motorisés 81, 82 du poste d'accostage 80.During these operations, the ferrule turns on itself using motorized roller tractors 100, as well as under the action of motorized rollers 81, 82 of the docking station 80.
En examinant maintenant la figure 9 en relation avec les figures 7 et 8, on remarque que, après avoir introduit dans l'automate programmable (non représenté) les données relatives aux diamètres de viroles à réaliser et à la longueur de bandes à dérouler, correspondant au périmètre de la dite virole 42, une fonction automatique positionne le rouleau cintreur 33 par l'intermédiaire du vérin 35, après engagement de 1 ' extrémité de la bande de tôle 41 sous le dit rouleau 33. Après passage sur le galet 24, la bande de tôle 41 est introduite sur le manège 10, après passage devant les moyens de redressement 23,36,37 de contrôle du rayon de cintrage et de défilement 31,32,33 qui vont maintenant être évoqués.Now examining FIG. 9 in relation to FIGS. 7 and 8, it is noted that, after having introduced into the programmable controller (not shown) the data relating to the diameters of ferrules to be produced and to the length of bands to be unwound, corresponding at the perimeter of said ferrule 42, an automatic function positions the bending roller 33 by means of the jack 35, after engagement of the end of the sheet metal strip 41 under the said roller 33. After passing over the roller 24, the sheet metal strip 41 is introduced onto the roundabout 10, after passing in front of the control rectifying means 23, 36, 37 of the bending and scrolling radius 31, 32, 33 which will now be mentioned.
On remarque tout d'abord, que la position du rouleau cintreur 33 est contrôlée par le détecteur de proximité 50, qui mesure, de façon précise, la distance le séparant de la surface externe de la bande de tôle 41, ce qui permet d'obtenir, par soustraction, la mesure exacte, entre les galets d'appui calibrés de la flèche communiquée à la bande de tôle par le rouleau cintreur 33. Des corrections, en plus ou en moins, sont ainsi en permanence transmises automatiquement au système d'alimentation du vérin 35, assurant le positionnement du rouleau cintreur 33. La roue codeuse 60, quant à elle, transmet en permanence à l'automate programmable par l'intermédiaire d'un générateur incrémental par exemple, qu'elle entraîne, la longueur exacte de bande de tôle 41 déjà formée, afin de commander, le moment opportun, l'arrêt précis de l'entraînement des rouleaux motorisés 31 et 32, précédant la commande de déclenchement du sectionnement par le poste de découpe transversale 70, constitué d'une glissière 71 avec chariot motorisé 72, supportant un outil de coupe 73. En se rapportant maintenant à nouveau aux figures 1 à 6 illustrant le procédé, on remarque que comme cela a déjà été évoqué plus avant :First of all, it is noted that the position of the bending roller 33 is controlled by the proximity detector 50, which precisely measures the distance separating it from the external surface of the sheet metal strip 41, which makes it possible to obtain, by subtraction, the exact measurement between the calibrated support rollers of the deflection communicated to the sheet metal strip by the bending roller 33. Corrections, more or less, are thus permanently transmitted automatically to the system supply to the jack 35, ensuring the positioning of the bending roller 33. The coding wheel 60, for its part, continuously transmits to the programmable controller by means of an incremental generator for example, which it drives, the exact length of sheet metal strip 41 already formed, in order to control, at the appropriate time, the precise stopping of the drive of the motorized rollers 31 and 32, preceding the command to initiate the cutting by the transve cutting station rsale 70, consisting of a slide 71 with motorized carriage 72, supporting a cutting tool 73. Referring now again to FIGS. 1 to 6 illustrating the process, it is noted that, as has already been mentioned above:
1°) La réalisation des viroles 42, 43 est précédée des opérations suivantes :1 °) The production of the ferrules 42, 43 is preceded by the following operations:
a) Fabrication d'un fond 11 par oxycoupage circulaire d'un assemblage de bandes de tôle, préalablement solidarisées latéralement, par référence à un point C déterminé arbitrairement sur la surface de cet assemblage de tôle.a) Manufacture of a bottom 11 by circular flame cutting of an assembly of sheet metal strips, previously joined laterally, by reference to a point C arbitrarily determined on the surface of this assembly of sheet metal.
b) Matérialisation de l'axe de symétrie des viroles 42, 43 par soudage d'un dispositif de référence, d'axe vertical Y coïncidant avec le point C déterminé à 1 ' étape précédente .b) Materialization of the axis of symmetry of the ferrules 42, 43 by welding of a reference device, of vertical axis Y coinciding with the point C determined in the preceding step.
c) Positionnement précis, par rapport à l'axe Y du dispositif de référence, à l'aide d'un gabarit de tous les moyens concourant à l'entraînement, au défilement, au guidage, à l'accostage et au soudage des bandes de tôle et au levage de l'ensemble au fur et à mesure de la réalisation.c) Precise positioning, relative to the Y axis of the reference device, using a template of all the means contributing to the drive, to the running, to the guidance, to the docking and to the welding of the bands sheet metal and lifting of the assembly as and when it is made.
2°) La position verticale des galets de défilement 13 des vérins de levage 12 est contrôlée à distance de façon très précise, individuellement et collectivement, en fonction de la progression des opérations d'assemblage et des séquences imposées par celle-ci. 3°) La position respective des dispositifs de soudage interne 91 et externe 92 est indiquée en permanence de façon très précise au cours de leur utilisation, avec indication immédiate sur un moniteur, des décalages pouvant apparaître entre les deux dispositifs de soudage 91, 92, afin que ce décalage puisse être immédiatement annulé en vue de conserver en permanence une parfaite concordance des points de soudure interne et externe, lors de la progression du cordon de soudure en corniche.2) The vertical position of the scroll rollers 13 of the lifting cylinders 12 is remotely controlled very precisely, individually and collectively, as a function of the progress of the assembly operations and the sequences imposed by the latter. 3 °) The respective position of the internal 91 and external 92 welding devices is permanently indicated very precisely during their use, with immediate indication on a monitor, offsets which may appear between the two welding devices 91, 92, so that this offset can be immediately canceled in order to permanently maintain perfect concordance of the internal and external weld points, during the progression of the weld bead.
4°) La solidarisation par soudage du toit 44 sur le chant correspondant de la virole supérieure 42 s'accompagne de la rotation de l'ensemble sur 360° à une vitesse contrôlée compatible avec la progression idéale du cordon de soudure.4) The joining by welding of the roof 44 on the corresponding edge of the upper shell 42 is accompanied by the rotation of the assembly over 360 ° at a controlled speed compatible with the ideal progression of the weld bead.
5°) Le soudage de l'ensemble sur le fond 11 est précédé de la mise en appui de la virole inférieure, sur taquets mobiles se substituant aux galets de défilement 13 préalablement démontés .5 °) The welding of the assembly on the bottom 11 is preceded by the pressing of the lower ferrule, on movable tabs replacing the scroll rollers 13 previously disassembled.
On comprend que pour obtenir un parfait parallélisme des viroles 42 , 43 entre elles et par rapport au fond 11 utilisé momentanément comme référence, les vérins 12 de manœuvre des galets de défilement 13 et des taquets (non représentés) doivent être de caractéristiques strictement identiques et que les débits d'huile auxquels ils sont soumis, tant à l'entrée qu'à la sortie, doivent être parfaitement contrôlés afin d ' obtenir des courses très précises des tiges de vérins . It is understood that in order to obtain perfect parallelism of the ferrules 42, 43 with one another and relative to the bottom 11 momentarily used as a reference, the actuators 12 for operating the scroll rollers 13 and the tabs (not shown) must be of strictly identical characteristics and that the oil flow rates to which they are subjected, both at the inlet and at the outlet, must be perfectly controlled in order to obtain very precise strokes of the cylinder rods.

Claims

1. Procédé de réalisation sur sites de réservoirs métalliques cylindriques de grande capacité, à partir de bobines de tôle (40) mettant en œuvre un moyen (30) d'entraînement, de cambrage et de défilement de la bande de tôle (41) ainsi que des moyens de découpe transversale (70), d'accostage (80) et de soudage longitudinal (90) des bandes de tôle, consistant à réaliser les viroles (42, 43) par cintrage, cambrage progressif en fonction du diamètre recherché, au fur et à mesure de l'entraînement et du déroulement de la bande de tôle (41) et à réaliser successivement les viroles (42, 43) du haut vers le bas en réalisant chacune d'elles (42) directement sous la précédente (43) en entraînant celle-ci en rotation par solidarisation progressive de la bande de tôle en cours de formage, cette solidarisation étant précédée d'une mise en appui tout aussi progressive de la virole précédente (43) sur le chant de la bande de tôle (41) au cours du défilement jusqu'à réalisation complète de la virole suivante (42), le toit (44) étant fixé sur le chant supérieur de la première virole (42) après réalisation de celle-ci ou des deux premières viroles ; la paroi étant solidarisée au fond (11) dès que celle-ci a atteint la hauteur désirée, caractérisé principalement :1. Method for producing large-capacity cylindrical metal tanks on sites, from sheet metal coils (40) using a means (30) for driving, bending and running the sheet metal strip (41) as well that transverse cutting means (70), docking (80) and longitudinal welding (90) of the sheet metal strips, consisting in making the ferrules (42, 43) by bending, progressive bending as a function of the desired diameter, at as and when the sheet metal strip (41) is driven and unwound and successively make the ferrules (42, 43) from top to bottom by making each of them (42) directly under the previous one (43 ) by driving the latter in rotation by progressive joining of the sheet metal strip during forming, this joining being preceded by an equally progressive pressing of the previous ferrule (43) on the edge of the sheet metal strip ( 41) during scrolling to when the next ferrule (42) is completely produced, the roof (44) being fixed on the upper edge of the first ferrule (42) after completion of the latter or of the first two ferrules; the wall being secured to the bottom (11) as soon as it has reached the desired height, mainly characterized:
1°) En ce que la réalisation des viroles est précédée des opérations suivantes : a) Réalisation d'un fond (11) par oxycoupage circulaire d'un assemblage de bandes de tôle, préalablement solidarisées latéralement, par référence à un point C déterminé arbitrairement sur la surface de cet assemblage de tôles .1 °) In that the production of the ferrules is preceded by the following operations: a) Making a bottom (11) by circular flame cutting of an assembly of sheet metal strips, previously joined laterally, by reference to a point C arbitrarily determined on the surface of this assembly of sheets.
b) Matérialisation de l'axe de symétrie des viroles par soudage d'un dispositif de référence, d'axe vertical Y coïncidant exactement avec le point C défini sur la surface du fond (11) à l'étape précédente.b) Materialization of the axis of symmetry of the ferrules by welding of a reference device, of vertical axis Y coinciding exactly with the point C defined on the bottom surface (11) in the previous step.
c) Positionnement précis, par rapport à l'axe Y du dispositif de référence, de tous les moyens concourant à l'entraînement, au défilement, au guidage, à l'accostage et au soudage des bandes de tôle et au levage de 1 ' ensemble au fur et à mesure de la réalisation.c) Precise positioning, relative to the Y axis of the reference device, of all the means contributing to the drive, to the travel, to the guidance, to the docking and to the welding of the sheet metal strips and to the lifting of the sheet together as and when they are made.
2°) En ce que la position verticale des galets de défilement (13) des moyens de levage (12) est contrôlée à distance de façon très précise individuellement et collectivement en fonction de la progression des opérations d'assemblage et des séquences imposées par celles-ci.2) In that the vertical position of the scroll rollers (13) of the lifting means (12) is remotely controlled very precisely individually and collectively as a function of the progress of the assembly operations and the sequences imposed by those -this.
3°) En ce que la position respective des dispositifs de soudage interne (91) et externe (92) est indiquée en permanence de façon très précise au cours de leur utilisation, avec indication immédiate des décalages pouvant apparaître entre les deux dispositifs, afin que ce décalage puisse être immédiatement annulé, en vue de conserver en permanence une parfaite concordance des points de soudure interne et externe, lors de la progression du cordon de soudure en corniche.3 °) In that the respective position of the internal (91) and external (92) welding devices is permanently indicated very precisely during their use, with immediate indication of the offsets that may appear between the two devices, so that this shift can be immediately canceled, in order to permanently maintain perfect concordance of the internal and external welding points, during the progression of the weld bead in the ledge.
4°) En ce que la solidarisation par soudage du toit sur le chant correspondant de la virole supérieure s ' accompagne de la rotation de 1 ' ensemble sur 360° à une vitesse contrôlée compatible avec la progression idéale du cordon de soudure.4 °) In that the joining by welding of the roof on the corresponding edge of the upper shell is accompanied by the rotation of the assembly over 360 ° at a controlled speed compatible with the ideal progression of the weld bead.
5°) En ce que le soudage de l'ensemble sur le fond (11) est précédé de la mise en appui sur taquets mobiles, du chant libre de la virole inférieure (43) du démontage des galets de défilement (13), du déplacement coordonné vers le bas des dits taquets mobiles, jusqu'à mise en appui dudit chant libre de la virole inférieure (43) sur le pourtour du fond (11) puis de l'évacuation par le trou d'homme des équipements inutilisables pour cette opération finale.5 °) In that the welding of the assembly on the bottom (11) is preceded by the pressing on movable cleats, the free edge of the lower ferrule (43) of the disassembly of the scroll rollers (13), the coordinated movement downwards of said movable cleats, until the said free edge of the lower shell (43) is pressed against the circumference of the bottom (11) then the evacuation through the manhole of equipment which cannot be used for this final operation.
2. Dispositif de mise en œuvre du procédé selon la revendication 1 comportant des moyens d ' entraînement, de cambrage (30) et de contrôle permanent (60) du cambrage et du défilement de la bande de tôle (41) ainsi que des moyens de découpe transversale (70) de soudage transversal d'accostage (80) et de soudage longitudinal (90) de la tôle, les moyens d'entraînement et de cambrage de la bande de tôle (41) étant constitué de deux rouleaux motorisés (31, 32) dont l'un est fixe (31) et l'autre (32) est rappelé vers celui-ci par un vérin (34) et d'un rouleau mobile (33) situé en aval des deux premiers (31, 32) dont le déplacement est assuré par un vérin (35) en fonction de la courbure à donner à la tôle, les moyens de contrôle permanent du cambrage et de défilement de la bande de tôle (41) étant constitués respectivement d'un détecteur de proximité (50) et d'une roue codeuse (60) ; les moyens de défilement étant constitués de galets (13) associés à des vérins de levage (12) répartis régulièrement sur une circonférence pour constituer un manège (10) de diamètre correspondant à celui de la virole (42) à obtenir, ces galets (13) étant destinés à soutenir progressivement la tôle (41) après cambrage, lors de son entraînement par un tracteur à galets motorisés (100) caractérisé en ce que les moyens d'entraînement (31, 32, 34) de cambrage (33, 35), de découpe transversale (70), de contrôle permanent du contrôle et du défilement (50, 60), de découpe transversale (70), de soudage (90) et de soutien de la tôle au cours du défilement (12, 13) ainsi que le tracteur à galets motorisés (100) sont gérés par un automate programmable contrôlable à distance par un boîtier de commande sans fil et en ce que la position des électrodes des dispositifs de soudage (91, 92) est contrôlée par des détecteurs reliés à un moniteur qui mesure et affiche, en temps réel, les éventuels écarts de position en vue de leur annulation immédiate. 2. Device for implementing the method according to claim 1 comprising means for driving, bending (30) and permanent control (60) of the bending and running of the sheet metal strip (41) as well as means of transverse cutout (70) of transverse docking (80) and longitudinal welding (90) of the sheet metal, the means for driving and bending the sheet metal strip (41) consisting of two motorized rollers (31, 32) one of which is fixed (31) and the other (32) is biased towards it by a jack (34) and a movable roller (33) located downstream of the first two (31, 32), the displacement of which is ensured by a jack (35) as a function of the curvature to be given to the sheet, the means for permanent control of the bending and of movement of the strip of sheet (41) being constituted respectively by a proximity detector (50) and a coding wheel (60); the scrolling means being constituted by rollers (13) associated with lifting cylinders (12) distributed regularly over a circumference to constitute a merry-go-round (10) of diameter corresponding to that of the ferrule (42) to be obtained, these rollers (13 ) being intended to gradually support the sheet (41) after bending, during its drive by a motorized roller tractor (100) characterized in that the drive means (31, 32, 34) for bending (33, 35) , transverse cutting (70), permanent control control and scrolling (50, 60), transverse cutting (70), welding (90) and support of the sheet during the scrolling (12, 13) as well that the motorized roller tractor (100) is managed by a programmable controller remotely controllable by a wireless control unit and that the position of the electrodes of the welding devices (91, 92) is controlled by detectors connected to a monitor that measures and af record, in real time, any position differences with a view to their immediate cancellation.
PCT/FR2001/001312 2001-04-27 2001-04-27 Method and device for semi-automatic on-site production of metal tanks WO2002087804A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP01929745A EP1381480B1 (en) 2001-04-27 2001-04-27 Method and device for semi-automatic on-site production of metal tanks
PCT/FR2001/001312 WO2002087804A1 (en) 2001-04-27 2001-04-27 Method and device for semi-automatic on-site production of metal tanks
AT01929745T ATE275012T1 (en) 2001-04-27 2001-04-27 METHOD AND DEVICE FOR THE ON-SITE, SEMI-AUTOMATIC PRODUCTION OF METAL CONTAINERS
ES01929745T ES2228855T3 (en) 2001-04-27 2001-04-27 PROCEDURE AND DEVICE FOR SEMIAUTOMATIC REALIZATION IN SITU, METAL DEPOSITS.
DE60105323T DE60105323T2 (en) 2001-04-27 2001-04-27 METHOD AND DEVICE FOR ON-SITE, SEMI-AUTOMATIC MANUFACTURE OF METAL CONTAINERS

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WO (1) WO2002087804A1 (en)

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DE60105323T2 (en) 2005-09-22
DE60105323D1 (en) 2004-10-07
EP1381480A1 (en) 2004-01-21
ATE275012T1 (en) 2004-09-15
EP1381480B1 (en) 2004-09-01
ES2228855T3 (en) 2005-04-16

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