EP0112288A1 - Method and apparatus for manufacturing watertight radiator elements - Google Patents

Method and apparatus for manufacturing watertight radiator elements Download PDF

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Publication number
EP0112288A1
EP0112288A1 EP83810550A EP83810550A EP0112288A1 EP 0112288 A1 EP0112288 A1 EP 0112288A1 EP 83810550 A EP83810550 A EP 83810550A EP 83810550 A EP83810550 A EP 83810550A EP 0112288 A1 EP0112288 A1 EP 0112288A1
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EP
European Patent Office
Prior art keywords
flat tube
edge parts
side walls
flanging
welded
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.)
Withdrawn
Application number
EP83810550A
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German (de)
French (fr)
Inventor
Hans Schalch
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.)
NEOTECH HOLDING AG
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NEOTECH HOLDING AG
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Publication date
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Publication of EP0112288A1 publication Critical patent/EP0112288A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • 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
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/04—Reducing; Closing
    • 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
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section

Definitions

  • the invention is based on a method for producing a watertight radiator element from a flat tube with open ends, which ends are closed and welded, and a device for carrying out the method.
  • a radiator with flat elements running parallel to one another is described in GB-PS ' 2,094,966.
  • Support parts are inserted in the open ends of the flat elements, which form the end walls of the flat elements and are welded to the side walls of the flat elements.
  • FR-PS 2,475,708 describes a radiator with flat elements running parallel to one another, the end faces of which are closed in such a way that the edge parts of the opposite broad side faces of the flat tube are folded towards the center of the end faces and then welded to one another.
  • the closing is not accomplished by means of rollers.
  • the surface of the folded-over edge parts with the weld seam is not clean.
  • the invention specified in claim 1 was based on the object of proposing a method for producing a waterproof radiator element, in which the element receives a clean and symmetrically shaped surface.
  • the manufacturing costs of such an element should be kept low.
  • each flat tube end is carried out by rolling edge parts of the wide, opposite side walls of the flat tube by means of at least one flanging roller, which flanging roller in succession from the two sides over the edge parts in the direction of Is guided in the middle of the ends, after which the rolled edge parts are welded together in a semi or fully automatic TIG process.
  • the flanging roller advantageously carries out two taxiways, one of which is larger than the other, the taxiways partially overlapping.
  • the device according to the invention for carrying out the method is characterized in that a device for rolling the edge parts and a device connected to it for welding the rolled edge parts of the wide, opposite flat tube side walls are accommodated in a single unit.
  • a flat tube 1 with open ends 2, 3 used according to the Fig. 1.
  • the wall thickness of such a flat tube 1 is approximately 1.25 to 2.0 mm.
  • the flat tube has wide, opposite side walls 1a, 1b; it is cut to the desired length.
  • the flat tube 1 is closed at its ends 2, 3 and welded.
  • Each flat tube end 2, 3 is closed by rolling edge parts of the wide, opposite side walls 1a, 1b.
  • the rolling is carried out by means of two flanging rollers 4, 5, which flanging rollers are successively guided in opposite directions over the edge parts of the side walls 1a, 1b of the flat tube 1, namely from the two sides of the flat tube 1 towards the center of each end face 2, 3.
  • the first flanging roller 4 executes a larger rolling path x than the second flanging roller 5.
  • the flat tube 1 at the ends 2, 3 must be roll-deformed overlapping from both sides, ie that the roll paths x, y of the first and the second flanging rolls 4, 5 partially overlap.
  • TIG is derived from the English Tungsten Inert Gas (process).
  • the element closed by rolling is then suitable for pressing / welding processes in a device described in more detail.
  • any subsequent grinding is superfluous.
  • the finished radiator element has a clean shape and is waterproof.
  • FIG. 5 shows a device in which the above-mentioned method steps are carried out in a single work cycle.
  • a device 6 for rolling the edge parts of the wide, opposite side walls 1a, 1b of the flat tube 1 by means of two flanging rollers 4, 5 and a device 7 connected to it for welding the supplied rolled edge parts in a semi or fully automatic TIG process.
  • the device has a flat tube magazine 8, a hole device 9, brushes 10, a cross conveyor 11 and a magazine 12 of finished radiator elements.
  • the finished radiator elements are then fed from the magazine 12 to a further device, not shown, where they are welded with a collector pipe for supplying warm water and a collector pipe for discharging cooled water.
  • radiator element No additional parts, such as end caps, filler or support parts, are required to manufacture the radiator element.
  • a simple and symmetrically deformed element is obtained with simple means, with which any subsequent grinding is unnecessary.

Abstract

Die offenen Stirnenden (2) eines Flachrohres (1) werden verschlossen und verschweisst. Das Verschliessen jedes Flachrohrstirnendes (2) geschieht durch Zurollen von Randteilen der breiten, gegnüberliegenden Seitenwände (1a) durch zwei Bördelrollen (4, 5). Die Bördelrollen (4, 5) werden nacheinander in einander entgegengesetzter Richtung über die Randteile der Seitenwände (1a) geführt. Dabei führt die eine der Bördelrollen (4, 5) einen grösseren Rollweg (x) aus als die andere Bördelrolle. Dann werden die zugerollten Randteile in einem halb- oder vollautomatischen TIG-Verfahren miteinander verschweisst. Man erhält ein sauberes und symmetrisch geformtes Radiatorenelement.The open ends (2) of a flat tube (1) are closed and welded. Each flat tube end (2) is closed by rolling edge parts of the wide, opposite side walls (1a) by means of two flanging rollers (4, 5). The flanging rollers (4, 5) are successively guided in opposite directions over the edge parts of the side walls (1a). One of the flanging rollers (4, 5) executes a larger rolling path (x) than the other flanging roller. Then the rolled edge parts are welded together in a semi or fully automatic TIG process. A clean and symmetrically shaped radiator element is obtained.

Description

Die Erfindung geht aus von einem Verfahren zur Herstellung eines wasserdichten Radiatorenelementes aus einem flachen Rohr mit offenen Stirnenden, welche Stirnenden verschlossen und verschweisst werden, und einer Vorrichtung zum Ausführen des Verfahrens.The invention is based on a method for producing a watertight radiator element from a flat tube with open ends, which ends are closed and welded, and a device for carrying out the method.

Es ist bekannt, das Verschliessen der offenen Stirnenden eines flachen Rohres mit einem Abschlussdekkel vorzunehmen, der in das entsprechende offene Stirnende eingesetzt und mit den Seitenwänden des Flachroh-. res verschweisst wird. Es ist weiter bekannt, in das Flachrohr in der Nähe jedes offenen Stirnendes einen Füllteil einzulegen, der ebenfalls mit den Flachrohrseitenwänden verschweisst oder verlötet wird.It is known to close the open ends of a flat tube with an end cap, which is inserted into the corresponding open end and with the side walls of the flat tube. res is welded. It is also known to insert a filler in the flat tube near each open end, which is also welded or soldered to the flat tube side walls.

Ein Radiator mit zueinander parallel verlaufenden flachen Elementen ist in der GB-PS'2,094,966 beschrieben. In den offenen Stirnenden der flächen Elemente sind Stützteile eingelegt, die die Abschlusswände der flachen Elemente bilden und mit den Seitenwänden der flachen Elemente verschweisst sind.A radiator with flat elements running parallel to one another is described in GB-PS ' 2,094,966. Support parts are inserted in the open ends of the flat elements, which form the end walls of the flat elements and are welded to the side walls of the flat elements.

Bei allen diesen Verfahen kann keineswegs ein sauberes und symmetrisch geformtes Radiatorenelement erhalten werden. Ausserdem müssen die Schweissnähte sowohl beim Einsetzen eines Abschlussdeckels als auch beim Einlegen eines Füll- oder Stützteiles in das Flachrohr geschliffen werden.In all of these processes, a clean and symmetrically shaped radiator element cannot be obtained. In addition, the weld seams must be like this be ground when inserting an end cover as well as when inserting a filler or support part into the flat tube.

In der FR-PS 2,475,708 ist ein Radiator mit zueinander parallel verlaufenden flachen Elementen beschrieben, deren Stirnseiten so verschlossen werden, dass die Randteile der gegenüberliegenden breiten Seitenflächen des Flachrohres in Richtung zur Mitte der Stirnenden umgelegt und dann miteinander verschweisst werden. Das Verschliessen wird aber nicht mittels Rollen bewerkstelligt. Auch hier ist die Oberfläche der umgelegten Randteile mit der Schweissnaht nicht sauber ausgeführt.FR-PS 2,475,708 describes a radiator with flat elements running parallel to one another, the end faces of which are closed in such a way that the edge parts of the opposite broad side faces of the flat tube are folded towards the center of the end faces and then welded to one another. However, the closing is not accomplished by means of rollers. Here, too, the surface of the folded-over edge parts with the weld seam is not clean.

Es ist weiter bekannt, das Verschliessen der offenen Stirnenden des Flachrohres mittels Rollen und eines Stützdornes vorzunehmen. Das verschlossene Element wird dann geschweisst. Diesem Verfahren haftet der Nachteil an, dass das Element wegen der Oeffnung für den Stützdorn nicht ganz geschlossen wird und es ist deshalb für die Weiterverarbeitung mittels Press-/Schweissverfahrens nicht geeignet.It is also known to close the open ends of the flat tube by means of rollers and a support mandrel. The closed element is then welded. This process has the disadvantage that the element is not completely closed due to the opening for the support mandrel and is therefore not suitable for further processing by means of the press / welding process.

Der im Patentanspruch 1 angegebenen Erfindung lag die Aufgabe zugrunde, ein Verfahren zur Herstellung eines wasserdichten Radiatorenelementes vorzuschlagen, bei welchem das Element eine saubere und symmetrisch geformte Oberfläche erhält. Die Herstellungskosten eines solchen Elementes sollen niedrig gehalten werden.The invention specified in claim 1 was based on the object of proposing a method for producing a waterproof radiator element, in which the element receives a clean and symmetrically shaped surface. The manufacturing costs of such an element should be kept low.

Diese Aufgabe wird bei einem Verfahren nach dem Oberbegriff des Patentanspruches 1 dadurch gelöst, dass das Verschliessen jedes Flachrohrstirnendes durch Zurollen von Randteilen der breiten, gegenüberliegenden Seitenwände des Flachrohres mittels mindestens einer Bördelrolle erfolgt, welche Bördelrolle nacheinander von den beiden Seiten über die Randteile in Richtung zur Mitte der Stirnenden geführt wird, wonach die zugerollten Randteile in einem halb- oder vollautomatischen TIG-Verfahren miteinander verschweisst werden.This object is achieved in a method according to the preamble of claim 1 in that the closing of each flat tube end is carried out by rolling edge parts of the wide, opposite side walls of the flat tube by means of at least one flanging roller, which flanging roller in succession from the two sides over the edge parts in the direction of Is guided in the middle of the ends, after which the rolled edge parts are welded together in a semi or fully automatic TIG process.

Mit Vorteil führt die Bördelrolle zwei Rollwege aus, deren der eine grösser ist als der andere, wobei sich die Rollwege teilweise überlappen.The flanging roller advantageously carries out two taxiways, one of which is larger than the other, the taxiways partially overlapping.

Die erfindungsgemässe Vorrichtung zum Ausführen des Verfahrens ist dadurch gekennzeichnet, dass in einer einzigen Einheit eine Einrichtung zum Zurollen der Randteile und eine an ihr angeschlossene Einrichtung zum Verschweissen der zugerollten Randteile der breiten, gegenüberliegenden Flachrohrseitenwände untergebracht sind.The device according to the invention for carrying out the method is characterized in that a device for rolling the edge parts and a device connected to it for welding the rolled edge parts of the wide, opposite flat tube side walls are accommodated in a single unit.

Die Erfindung wird nachstehend anhand der Zeichnung beispielsweise näher erläutert. Es zeigen

  • Fig. 1 eine perspektivische Ansicht eines Flachrohres mit offenen Stirnenden, welches Rohr zur Herstellung eines Radiatorenelementes verwendet wird,
  • Fig. 2 eine Draufsicht in schematischer Darstellung des einen offenen Stirnendes des Flachrohres nach der Fig. 1 mit zwei Bördelrollen, die über die Randteile der breiten, gegenüberliegenden Seitenwände des Flachrohres geführt werden,
  • Fig. 3 eine Seitenansicht in schematischer Darstellung des einen Stirnendes des Flachrohres nach der Fig. 1, mit durch eine der Rollen zugerollten Randteilen,
  • Fig. 4 eine Teilansicht des fertigen Radiatorenelementes und
  • Fig. 5 eine Draufsicht in schematischer Darstellung einer Vorrichtung mit verschiedenen Einrichtungen zur Herstellung des Radiatorenelementes.
The invention is explained below with reference to the drawing, for example. Show it
  • 1 is a perspective view of a flat tube with open ends, which tube is used to produce a radiator element,
  • 2 is a plan view in a schematic representation of an open end of the flat tube according to FIG. 1 with two flanging rollers which are guided over the edge parts of the wide, opposite side walls of the flat tube,
  • 3 shows a side view in a schematic representation of one end of the flat tube according to FIG. 1, with edge parts rolled up by one of the rollers,
  • Fig. 4 is a partial view of the finished radiator element and
  • Fig. 5 is a plan view in schematic representation of a device with various devices for producing the radiator element.

Zur Herstellung eines wasserdichten Radiatorenele- mentes wird ein Flachrohr 1 mit offenen Stirnenden 2, 3 nach der Fig. 1 verwendet. Die Wanddicke eines solchen Flachrohres 1 beträgt etwa 1,25 bis 2,0 mm. Das Flachrohr weist breite, gegenüberliegende Seitenwände 1a, 1b auf; es wird auf die gewünschte Länge zugeschnitten.For the production of a waterproof radiator Enele - mentes is a flat tube 1 with open ends 2, 3 used according to the Fig. 1. The wall thickness of such a flat tube 1 is approximately 1.25 to 2.0 mm. The flat tube has wide, opposite side walls 1a, 1b; it is cut to the desired length.

Wie aus den Fig. 2 bis 4 ersichtlich ist, wird das Flachrohr 1 an seinen Stirnenden 2, 3 verschlossen und verschweisst. Das Verschliessen jedes Flachrohrstirnendes 2, 3 geschieht durch Zurollen von Randteilen der breiten, gegenüberliegenden Seitenwände 1a, 1b. Das Zurollen wird mittels jeweils zweier Bördelrollen 4, 5 ausgeführt, welche Bördelrollen nacheinander in einander entgegengesetzter Richtung über die Randteile der Seitenwände 1a, 1b des Flachrohres 1 geführt werden, und zwar von den beiden Seiten des Flachrohres 1 in Richtung zur Mitte jedes Stirnendes 2, 3. Dabei führt die erste Bördelrolle 4 einen grösseren Rollweg x aus als die zweite Bördelrolle 5. Um ein sauberes und symmetrisch geformtes Element zu erhalten, muss das Flachrohr 1 an den Stirnenden 2, 3 von beiden Seiten überlappend rollverformt werden, d. h., dass sich die Rollwege x, y der ersten und der zweiten Bördelrolle 4, 5 teilweise überlappen.As can be seen from FIGS. 2 to 4, the flat tube 1 is closed at its ends 2, 3 and welded. Each flat tube end 2, 3 is closed by rolling edge parts of the wide, opposite side walls 1a, 1b. The rolling is carried out by means of two flanging rollers 4, 5, which flanging rollers are successively guided in opposite directions over the edge parts of the side walls 1a, 1b of the flat tube 1, namely from the two sides of the flat tube 1 towards the center of each end face 2, 3. The first flanging roller 4 executes a larger rolling path x than the second flanging roller 5. In order to obtain a clean and symmetrically shaped element, the flat tube 1 at the ends 2, 3 must be roll-deformed overlapping from both sides, ie that the roll paths x, y of the first and the second flanging rolls 4, 5 partially overlap.

Nach dem Zurollen der Randteile der Seitenwände 1a, 1b werden die zugerollten Randteile in einem halb- oder vollautomatischen TIG-Verfahren miteinander verschweisst. Die Abkürzung TIG ist aus dem Englischen Tungsten Inert Gas (Verfahren) abgeleitet. Das durch Zurollen geschlossene Element eignet sich dann für Press-/Schweissverfahren in einer weiter näher beschriebenen Vorrichtung. Beim Schweissen mittels des halb- oder vollautomatischen TIG-Verfahrens ist jegliches nachträgliches Schleifen überflüssig. Das fertige Radiatorenelement hat eine saubere Form und ist wasserdicht.After the edge parts of the side walls 1a, 1b have been rolled up, the rolled edge parts are welded to one another in a semi or fully automatic TIG process. The abbreviation TIG is derived from the English Tungsten Inert Gas (process). The element closed by rolling is then suitable for pressing / welding processes in a device described in more detail. When welding using the semi or fully automatic TIG process, any subsequent grinding is superfluous. The finished radiator element has a clean shape and is waterproof.

In der Fig. 5 ist eine Vorrichtung dargestellt, in welcher die oben erwähnten Verfahrensschritte in einem durchlaufenden einzigen Arbeitszyklus ausgeführt werden. In einer einzigen Einheit ist eine Einrichtung 6 zum Zurollen der Randteile der breiten, gegenüberliegenden Seitenwände 1a, 1b des Flachrohres 1 mittels zweier Bördelrollen 4, 5 und eine an ihr angeschlossene Einrichtung 7 zum Verschweissen der zugerollten Randteile in einem halb- oder vollautomatischen TIG-Verfahren. Ausserdem weist die Vorrichtung ein Flachrohrmagazin 8, eine Locheinrichtung 9, Bürsten 10, einen Querförderer 11 und ein Magazin 12 von fertigen Radiatorenelementen auf.FIG. 5 shows a device in which the above-mentioned method steps are carried out in a single work cycle. In a single unit is a device 6 for rolling the edge parts of the wide, opposite side walls 1a, 1b of the flat tube 1 by means of two flanging rollers 4, 5 and a device 7 connected to it for welding the supplied rolled edge parts in a semi or fully automatic TIG process. In addition, the device has a flat tube magazine 8, a hole device 9, brushes 10, a cross conveyor 11 and a magazine 12 of finished radiator elements.

Die fertigen Radiatorenelemente werden dann aus dem Magazin 12 einer weiteren, nicht dargestellten Vorrichtung zugeführt, wo sie mit einem Kollektorrohr zum Zuführen von warmem Wasser und einem Kollektorrohr zum Abführen von abgekühltem Wasser verschweisst werden.The finished radiator elements are then fed from the magazine 12 to a further device, not shown, where they are welded with a collector pipe for supplying warm water and a collector pipe for discharging cooled water.

Zur Herstellung des Radiatorenelementes werden keine Zusatzteile, wie Abschlussdeckel, Füll- oder Stützteile notwendig. Mit einfachen Mitteln wird ein sauber und symmetrisch verformtes Element erhalten, bei welchem sich jegliches nachträgliches Schleifen erübrigt.No additional parts, such as end caps, filler or support parts, are required to manufacture the radiator element. A simple and symmetrically deformed element is obtained with simple means, with which any subsequent grinding is unnecessary.

Claims (4)

1. Verfahren zur Herstellung eines wasserdichten Radiatorenelementes aus einem flachen Rohr mit offenen Stirnenden, welche Stirnenden verschlossen und verschweisst werden, dadurch gekennzeichnet, dass das Verschliessen jedes Flachrohrstirnendes (2, 3) durch Zurollen von Randteilen der breiten, gegenüberliegenden Seitenwände (1a, 1b) des Flachrohres (1) mittels mindestens einer Bördelrolle (4, 5) erfolgt, welche Bördelrolle (4, 5) nacheinander von den beiden Seiten über die Randteile in Richtung zur Mitte der Stirnenden (2, 3) geführt wird, wonach die zugerollten Randteile in einem halb- oder vollautomatischen TIG-Verfahren miteinander verschweisst werden.1. A method for producing a waterproof radiator element from a flat tube with open ends, which ends are closed and welded, characterized in that the closing of each flat tube end (2, 3) by rolling edge parts of the wide, opposite side walls (1a, 1b) of the flat tube (1) by means of at least one flanging roller (4, 5), which flanging roller (4, 5) is successively guided from the two sides over the edge parts towards the center of the front ends (2, 3), after which the rolled edge parts in are welded together using a semi or fully automatic TIG process. 2. Verfahren nach Patentanspruch 1, dadurch gekennzeichnet, dass die Bördelrolle (4, 5) zwei Rollwege (x, y) ausführt, deren der eine grösser ist als der andere.2. The method according to claim 1, characterized in that the flanging roller (4, 5) executes two taxiways (x, y), one of which is larger than the other. 3. Verfahren nach Patentanspruch 2, dadurch gekennzeichnet, dass sich die Rollwege (x, y) teilweise überlappen.3. The method according to claim 2, characterized in that the taxiways (x, y) partially overlap. 4. Vorrichtung zum Ausführen des Verfahrens nach Patentanspruch 1, dadurch gekennzeichnet, dass in einer einzigen Einheit eine Einrichtung (6) zum Zurollen der Randteile und eine an ihr angeschlossene Einrichtung (7) zum Verschweissen der zugerollten Randteile der breiten, gegenüberliegenden Flachrohrseitenwände (1a, 1b) untergebracht sind.4. Device for carrying out the method according to claim 1, characterized in that in a single unit a device (6) for rolling the edge parts and a device (7) connected to it for welding the rolled edge parts of the wide, opposite flat tube side walls (1a, 1b) are accommodated.
EP83810550A 1982-12-17 1983-11-24 Method and apparatus for manufacturing watertight radiator elements Withdrawn EP0112288A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH7385/82A CH657081A5 (en) 1982-12-17 1982-12-17 METHOD AND DEVICE FOR PRODUCING A WATERPROOF RADIATOR ELEMENT.
CH7385/82 1982-12-17

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EP0112288A1 true EP0112288A1 (en) 1984-06-27

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EP83810550A Withdrawn EP0112288A1 (en) 1982-12-17 1983-11-24 Method and apparatus for manufacturing watertight radiator elements

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US (1) US4580715A (en)
EP (1) EP0112288A1 (en)
JP (1) JPS59161696A (en)
CH (1) CH657081A5 (en)
ES (1) ES8500776A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153138A2 (en) * 1984-02-16 1985-08-28 Brian F. Mooney Method of and apparatus for manufacturing heat exchangers and components for heat exchangers
EP2189229A1 (en) * 2008-11-24 2010-05-26 Neotech-Holding AG Method of closing the end of pipes with a rectangular cross-section

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4411888A1 (en) * 1994-04-07 1995-10-12 Fritz Werner Praezismaschbau Mfr of latent heat storage cells
DE69925629T2 (en) * 1998-11-20 2006-05-04 Amersham Health As PROCESS AND DEVICE FOR WELDING

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL56743C (en) * 1900-01-01
US1633601A (en) * 1923-06-07 1927-06-28 Thomas E Murray Radiator
DE725403C (en) * 1938-10-15 1942-09-21 Robert V Linde Dipl Ing Radiator element with air ducts connected to the heating medium duct
FR1205151A (en) * 1957-07-12 1960-02-01 Le Petit Tube De Prec Process for sealing tubes, machine for implementing this process, and tubes thus sealed
FR1534478A (en) * 1967-08-21 1968-07-26 Rosenblads Patenter Ab Tube bundle for heat exchanger and the like
FR2475708A1 (en) * 1980-02-07 1981-08-14 Runtal Holding Co Sa PARALLEL FLAT TUBE TYPE HEAT EXCHANGER BETWEEN THEM

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1173202A (en) * 1914-07-15 1916-02-29 Locomotive Superheater Co Method and machine for welding pipe-bends.
US1939770A (en) * 1931-06-22 1933-12-19 Winford L Enghauser Pipe forming machine
US2277473A (en) * 1937-11-06 1942-03-24 Air Reduction Method of making welded tubes
US3452424A (en) * 1966-06-13 1969-07-01 American Mach & Foundry Forming and welding tapered tubes
SU597461A1 (en) * 1976-10-27 1978-03-15 Проектно-Конструкторское Бюро По Механизации Энергетического Строительства Machine for multifold bending of sheet blanks
JPS55153630A (en) * 1979-05-21 1980-11-29 Toshiba Corp Manufacture of cooling path
CH654100A5 (en) * 1981-03-12 1986-01-31 Runtal Holding Co Sa RADIATOR.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL56743C (en) * 1900-01-01
US1633601A (en) * 1923-06-07 1927-06-28 Thomas E Murray Radiator
DE725403C (en) * 1938-10-15 1942-09-21 Robert V Linde Dipl Ing Radiator element with air ducts connected to the heating medium duct
FR1205151A (en) * 1957-07-12 1960-02-01 Le Petit Tube De Prec Process for sealing tubes, machine for implementing this process, and tubes thus sealed
FR1534478A (en) * 1967-08-21 1968-07-26 Rosenblads Patenter Ab Tube bundle for heat exchanger and the like
FR2475708A1 (en) * 1980-02-07 1981-08-14 Runtal Holding Co Sa PARALLEL FLAT TUBE TYPE HEAT EXCHANGER BETWEEN THEM

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153138A2 (en) * 1984-02-16 1985-08-28 Brian F. Mooney Method of and apparatus for manufacturing heat exchangers and components for heat exchangers
EP0153138B1 (en) * 1984-02-16 1989-05-03 Brian F. Mooney Method of and apparatus for manufacturing heat exchangers and components for heat exchangers
EP2189229A1 (en) * 2008-11-24 2010-05-26 Neotech-Holding AG Method of closing the end of pipes with a rectangular cross-section

Also Published As

Publication number Publication date
US4580715A (en) 1986-04-08
CH657081A5 (en) 1986-08-15
ES528136A0 (en) 1984-11-01
JPS59161696A (en) 1984-09-12
ES8500776A1 (en) 1984-11-01

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