WO2000010750A1 - Electrically-conductive hollow profile - Google Patents

Electrically-conductive hollow profile Download PDF

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Publication number
WO2000010750A1
WO2000010750A1 PCT/CH1999/000380 CH9900380W WO0010750A1 WO 2000010750 A1 WO2000010750 A1 WO 2000010750A1 CH 9900380 W CH9900380 W CH 9900380W WO 0010750 A1 WO0010750 A1 WO 0010750A1
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WO
WIPO (PCT)
Prior art keywords
profile
web
parts
hollow profile
copper
Prior art date
Application number
PCT/CH1999/000380
Other languages
German (de)
French (fr)
Inventor
Hansueli SCHÜRCH
Original Assignee
Ums Schweizerische Metallwerke Ag
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 Ums Schweizerische Metallwerke Ag filed Critical Ums Schweizerische Metallwerke Ag
Priority to AU51459/99A priority Critical patent/AU5145999A/en
Publication of WO2000010750A1 publication Critical patent/WO2000010750A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/151—Making tubes with multiple passages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/005—Continuous extrusion starting from solid state material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, bars, tubes
    • B21C23/085—Making tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/14—Making other products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/14—Making other products
    • B21C23/142—Making profiles
    • B21C23/145—Interlocking profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/22—Making metal-coated products; Making products from two or more metals
    • 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
    • B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
    • B21D47/04—Making rigid structural elements or units, e.g. honeycomb structures composite sheet metal profiles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/06—Single tubes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/22—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of hollow conductors

Definitions

  • the present invention relates to a current-conducting hollow profile as defined in the preamble of independent claim 1.
  • conductors in the form of current-conducting hollow profiles are used, which comprise at least one continuous cavity.
  • the hollow profiles consist of copper or copper qualities with a high electrical conductivity.
  • a current-conducting hollow profile is known from US Pat. No. 3,987,238, the inner sides of which have furrows.
  • the hollow profile consists of four profile parts that are welded together.
  • the fact that the hollow profile consists of four individual parts that are connected to each other leads on the one hand to increased production effort and on the other hand to reduced strength and flexibility.
  • FR-A-2 401 712 describes a method for producing a two-channel tube which comprises two bent tube parts which are welded to one another and between which an intermediate wall is welded.
  • This two-channel too Pipe has the disadvantage that it consists of three individual parts that are welded together. In addition, the pipe and partition walls are very thin.
  • Hollow profile production methods are also known, in which two profile parts are produced, which are then assembled by the rotor builder. The two profile parts are held together relatively loosely, for example, by insulation wrapped around them or by a connecting element. Hollow profiles of this kind, which form the closest prior art, have the disadvantage, among other things, that they are unstable and can only be bent to a very limited extent.
  • the invention is based on the following object.
  • a current-conducting hollow profile of the type mentioned at the outset is to be created, which can be produced with less effort, at least in the same quality or with the same effort, in better quality, with rapid passage.
  • the essence of the invention is that in the case of a current-conducting hollow profile with at least one continuous the cavity between two webs in each case, which comprises two separate profile parts, which together delimit the cavity or each individual cavity on four sides, the two profile parts being firmly connected to one another on at least one web.
  • the current-conducting hollow profile according to the invention comprises two separate profile parts, it can be produced faster, more rationally and more cost-effectively with at least the same quality. It is not necessary to press bolts over brackets in the extrusion process, which often have to be replaced.
  • the profile parts can be manufactured continuously. The firm connection of the two profile parts on at least one web ensures on their side a significantly greater stability and a very good bendability in comparison with the previously known two-part hollow profiles. It is also calculable and therefore associated with fewer risks than connecting the upper and lower profile parts in the extrusion process.
  • the complex customer requirements require a solid, stable product.
  • the manufacturing tolerances (mechanical values, dimensions) and the surface quality can be improved with the hollow profile according to the invention.
  • the two profile parts are mechanically connected to one another. Better strength, stretchability and extensibility of the hollow profile can be achieved than when the profile parts are welded. In addition, there are no weld seams and there is no risk of oxidation of the cavity or cavities.
  • inventive ⁇ tro-conducting hollow profile and the production method according to the invention are described in more detail below with reference to the attached drawings using a large number of exemplary embodiments. Show it:
  • 1, 2 - a first embodiment of a hollow profile with mechanical connection on three webs
  • FIG. 5a-5k different ways of connecting two web parts
  • FIG. 6 shows a third exemplary embodiment of a hollow profile with a continuous cavity
  • FIG. 7 shows a fourth embodiment of a hollow profile with two continuous cavities
  • FIG. 8 shows a fifth exemplary embodiment of a hollow profile with three continuous cavities
  • Fig. 9 - a flat and edged hollow profile
  • Fig. 12 the elongation and connection of profile parts in a drawing bench
  • Fig. 13 - a section along the line B-B in Fig. 12;
  • Fig. 14 - a section along the line C-C in Fig. 12.
  • the hollow profile shown in cross section consists of two
  • Profile parts 1 and 2 which delimit two continuous cavities 3 and 4.
  • the two profile parts 1, 2 are mechanically firmly connected to one another on three webs 6, 7 and 8, both profile parts each forming part of each web.
  • the web parts of the profile part 2 each have a T-shaped extension at their end, which is held between two L-shaped legs of the associated web part of the profile part 1.
  • one web part engages behind a piece of the other web part and the two profile parts 1, 2 are firmly connected to one another with little play.
  • the profile part 1 is first made with open, ie spread apart, legs, as can be seen in FIG. 2, and only after the two profile parts 1, 2 have been assembled, the legs are placed on the T-shaped extensions too bent.
  • the described and the following exemplary embodiments of a current-conducting hollow profile according to the invention normally consist essentially of copper or copper grades with a copper content> 99.7%, in particular of electrolytic copper, silver-containing copper and / or oxygen-free copper.
  • a particularly suitable copper quality is CuAgO .1P with a strength> 230 N / mm 2 .
  • the hollow profile thus has a high electrical conductivity, hardly any changed mechanical values at 250 ° C, very good flexibility, inside and outside a clean surface and only minimal leakage losses. It is also solderable and weldable.
  • the hollow profile consists of two profile parts 11 and 12, which delimit two continuous cavities 13 and 14 and are mechanically connected to one another at three webs 16, 17 and 18.
  • the web part of the profile part 11 and at the web 18 the web part of the profile part 12 each have a T-shaped extension at their end, which is held between two L-shaped legs of the associated web part of the other profile part.
  • the two web parts are connected by means of a connecting element 15, which has the shape of two inverted T-profiles, one T-profile between two L-shaped legs of the associated web part of the profile part 11 and the other T-profile between two L-shaped legs of the associated web part of the profile part 12 is held.
  • This additional separate connecting element 15 brings advantages when bending the hollow profile.
  • the profile parts 11 and 12 are initially opened, as can be seen in FIG. spread apart, legs manufactured and only after the assembly of the two profile parts 11, 12, the legs are bent to the T-shaped extensions or the T-profiles.
  • 5a to 5d show mechanical connections between two web parts, in which one web part engages behind a piece of the other web part.
  • FIG. 5h shows a resistance weld connection and FIG. 5i shows a weld connection with weld seam 85, while in FIG. 5k a solder connection with solder 55 is shown.
  • the welding / soldering results in a very firm connection.
  • the connections are only indicated schematically here and can be mechanical, welding, Be soldered or adhesive connections.
  • this fourth exemplary embodiment there are two continuous cavities 33 and 34 which are delimited by two profile parts 31 and 32 which are firmly connected to one another at three webs 36, 37 and 38.
  • the middle web 37 which is additional in comparison to the third exemplary embodiment, enables the hollow profile to be subjected to greater stress without it bending.
  • the hollow profile according to the fifth exemplary embodiment shown consists of two profile parts 41 and 42 which delimit three continuous cavities 43, 44 and 45.
  • the two profile parts 41, 42 are firmly connected to one another on four webs 46, 47, 48 and 49.
  • the resilience of this hollow profile is even greater due to the four webs.
  • the number of continuous cavities can also be arbitrarily larger.
  • the hollow profile 50 shown with the continuous cavities 53 and 54 is bent flat with a radius R x and upright with a radius R 2 .
  • flat radii R x smaller than 65 mm and vertical radii R 2 smaller than 80 mm can be achieved.
  • the profile parts and, if appropriate, the connecting elements of the hollow profiles according to the invention are preferably continuously made from a wire 80 made of copper or a copper quality with a diameter of e.g. 16 mm.
  • the wire 80 is guided via a coil 71 along a guide 72 to a sealing lug 73 and from there it arrives in a tool 75 arranged in a tool holder 74 and heated by a heater 76, where it leads to the corresponding base profile part or base Connection element is formed.
  • the wire 80 is deformed by kneading and pressing.
  • the base profile part or base connection element is finally wound onto a coil for further processing.
  • FIGS. 12 to 14 The base profile parts 81, 82 which are wound on coils 77, 78 and 79 and, if appropriate, base connecting elements 83 are a drawing bench 90, the base profile parts 81 and 82 being arranged around mandrels 91 and 92 fastened to a mandrel fixation 93 with mandrel heads 911 and 921, respectively.
  • the base profile parts 81, 82 and possibly the base connection element 83 are then pulled through their length through a drawing die 94 by means of drawing bars (not shown).
  • the hollow profile comprises only the two profile parts and no connecting element.
  • the open legs of the web parts of the base profile part 81 are bent onto the T-shaped extensions of the web parts of the base profile part 82 during the passage through the drawing die 94.
  • the two profile parts are then firmly connected to one another.
  • a corresponding additional station 95 is installed in front of the drawing bench 90.
  • the separation points of the webs do not necessarily have to be in the middle, but can be chosen freely.
  • the internal webs can also only be used as a support, i.e. without a fixed connection.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

The invention relates to an electrically-conductive hollow profile composed of two profile elements (1, 2) which define two continuous cavities (3, 4). Said two profile elements (1, 2) are mechanically secured to each other at three fixed links (6, 7, 8), whereby each profile element respectively forms a part of a fixed link. The fixed-link sections of the profile element (2) have a respective T-shaped terminal extension which is maintained between two L-shaped branches of the fixed-link section associated with the profile element (1). One of the fixed-link sections partially grips the other fixed-link section and said two profile elements (1, 2) are secured to each other with little play.

Description

Strom.eitendes HohlprofilStrom.eitende Hohlprofil
Die vorliegende Erfindung bezieht sich auf ein stromleitendes Hohlprofil, wie es im Oberbegriff des unabhängigen Patentanspruchs 1 definiert ist.The present invention relates to a current-conducting hollow profile as defined in the preamble of independent claim 1.
Beispielsweise für Rotoren von leistungsstarken Generatoren werden Leiter in Form von stromleitenden Hohlprofilen eingesetzt, die mindestens einen durchgehenden Hohlraum umfassen. Die Hohlprofile bestehen aus Kupfer oder Kupferquali- täten mit einer hohen elektrischen Leitfähigkeit. Der durchgehende Hohlraum bzw. die durchgehenden Hohlräume werden im Betrieb zur Kühlung des Leiters von einem Kühlmittel, insbesondere Gas oder Luft, durchströmt.For example, for rotors of high-performance generators, conductors in the form of current-conducting hollow profiles are used, which comprise at least one continuous cavity. The hollow profiles consist of copper or copper qualities with a high electrical conductivity. A coolant, in particular gas or air, flows through the continuous cavity or cavities during operation to cool the conductor.
Derartige Hohlprofile werden heutzutage normalerweise im Strangpressverfahren einstückig hergestellt. Dabei werden Bolzen aus Kupfer oder einer Kupferqualität erhitzt und über mindestens einen Bügel gepresst, der zur Ausbildung eines Hohlraums dient. Hinter dem oder den Bügeln vereini- gen sich ein oberer Profilteil und ein unterer Profilteil, wobei sie zwischen sich einen bzw. mehrere durchgehende Hohlräume offenlassen. Schliesslich wird das so erhaltene Baεis-Hohlprofil noch in einem Ziehwerkzeug gezogen und auf die gewünschte Länge zugeschnitten.Nowadays, such hollow profiles are normally produced in one piece using the extrusion process. Bolts made of copper or copper quality are heated and pressed over at least one bracket, which serves to form a cavity. An upper profile part and a lower profile part unite behind the bracket or brackets, leaving one or more continuous cavities open between them. Finally, the Baεis hollow profile obtained in this way is drawn in a drawing tool and cut to the desired length.
Dieses Herstellungsverfahren und die resultierenden Hohlprofile sind mit mehreren Nachteilen verbunden. Die Bügel zur Ausbildung des oder der Hohlräume sind einem grossen Verschleiss ausgesetzt und müssen oft ersetzt werden. Dies hat hohe Werkzeugkosten und, da das Einpassen der Werkzeuge mit viel Handarbeit verbunden ist, einen grossen Personal - aufwand und kostspielige Maschinenstillstandszeiten zur Folge. Beim Strangpressen ist ausserdem der Ausstoεs pro Pressung relativ gering und die Hohlprofilherstellung ist nicht kontinuierlich. Die bei der Vereinigung des oberen Profilteils und des unteren Profilteils auftretende Ver- schweissung ist nicht kalkulierbar und damit mit Risiken verbunden. Es besteht zudem die Gefahr der Oxydation. Das Langziehen des Basis-Hohlprofils ist relativ zeitaufwendig und die Masshaltigkeit und die Oberflächenqualität innen und aussen sind problematisch. Im weiteren ist das ganze Verfahren unrationell, da für 100 kg Profil 190-240 kg Kupfer oder Kupferqualitäten verarbeitet werden müssen. Zusam- menfassend kann gesagt werden, dass bei diesem Hohlprofil- Herstellungsverfahren die Kosten hoch, der Durchlauf lang und die Risiken relativ gross sind.This manufacturing process and the resulting hollow profiles have several disadvantages. The brackets for forming the cavity or cavities are subject to great wear and often have to be replaced. This has high tool costs and, because the fitting of the tools involves a lot of manual work, a large amount of personnel - and costly machine downtimes. In extrusion, the output per pressing is also relatively low and the hollow profile production is not continuous. The welding that occurs when the upper profile part and the lower profile part are combined cannot be calculated and is therefore associated with risks. There is also a risk of oxidation. The elongation of the basic hollow profile is relatively time-consuming and the dimensional stability and the surface quality inside and outside are problematic. Furthermore, the entire process is inefficient, since 190-240 kg of copper or copper qualities have to be processed for 100 kg of profile. In summary, it can be said that with this hollow profile production process, the costs are high, the throughput is long and the risks are relatively high.
Aus der US-A-3 987 238 ist ein stromleitendes Hohlprofil bekannt, dessen Innenseiten Furchen aufweisen. Das Hohlprofil besteht aus herstellungstechnischen Gründen aus vier Profilteilen, die zusammengeschweisst sind. Dass das Hohlprofil aus vier Einzelteilen besteht, die miteinander verbunden sind, führt einerseits zu einem erhöhten Fertigungs- aufwand und anderseits zu einer verminderten Festigkeit und Biegbarkeit .A current-conducting hollow profile is known from US Pat. No. 3,987,238, the inner sides of which have furrows. For manufacturing reasons, the hollow profile consists of four profile parts that are welded together. The fact that the hollow profile consists of four individual parts that are connected to each other leads on the one hand to increased production effort and on the other hand to reduced strength and flexibility.
In der FR-A-2 401 712 ist ein Verfahren zur Herstellung eines zweikanaligen Rohrs beschrieben, das zwei miteinander verschweisste gebogene Rohrteile umfasst, zwischen die eine Zwischenwand eingeschweisst ist. Auch dieses zweikanalige Rohr weist den Nachteil auf, dass es aus drei Einzelteilen besteht, die miteinander verschweisst sind. Ausserdem sind die Rohr- und Zwischenwände sehr dünn.FR-A-2 401 712 describes a method for producing a two-channel tube which comprises two bent tube parts which are welded to one another and between which an intermediate wall is welded. This two-channel too Pipe has the disadvantage that it consists of three individual parts that are welded together. In addition, the pipe and partition walls are very thin.
Es sind auch Hohlprofil-Herstellungsverfahren bekannt, bei denen zwei Profilteile hergestellt werden, die dann erst vom Rotorenbauer zusammengesetzt werden. Die beiden Profil - teile werden beispielsweise durch eine rund herum gewickelte Isolation oder durch ein Verbindungselement relativ locker zusammengehalten. Derartige Hohlprofile, die den nächsten Stand der Technik bilden, haben unter anderem den Nachteil, dass sie instabil und nur sehr limitiert biegbar sind .Hollow profile production methods are also known, in which two profile parts are produced, which are then assembled by the rotor builder. The two profile parts are held together relatively loosely, for example, by insulation wrapped around them or by a connecting element. Hollow profiles of this kind, which form the closest prior art, have the disadvantage, among other things, that they are unstable and can only be bent to a very limited extent.
Angesichts der Nachteile der bisher bekannten, oben beschriebenen Hohlprofile und Hohlprofil-Herstellungsverfahren liegt der Erfindung die folgende Aufgabe zugrunde. Zu schaffen ist ein stromleitendes Hohlprofil der eingangs erwähnten Art, das bei raschem Durchlauf mit weniger Aufwand mindestens in derselben Qualität bzw. mit demselben Aufwand in besserer Qualität fertigbar ist .In view of the disadvantages of the previously known hollow profiles and hollow profile production processes described above, the invention is based on the following object. A current-conducting hollow profile of the type mentioned at the outset is to be created, which can be produced with less effort, at least in the same quality or with the same effort, in better quality, with rapid passage.
Diese Aufgabe wird durch das erfindungsgemässe εtromleiten- de Hohlprofil gelöst, wie es im unabhängigen Patentanspruch 1 definiert ist. Ein erfindungsgεmässes Verfahren zur Herstellung eines solchen Hohlprofils ergibt sich aus Patentanspruch 8. Bevorzugte Ausführungsvarianten können den abhängigen Patentansprüchen entnommen werden.This object is achieved by the current-conducting hollow profile according to the invention, as defined in independent claim 1. A method according to the invention for producing such a hollow profile results from patent claim 8. Preferred embodiment variants can be found in the dependent patent claims.
Das Wesen der Erfindung besteht darin, dass bei einem εtromleitenden Hohlprofil mit mindestens einem durchgehen- den Hohlraum zwischen jeweils zwei Stegen, das zwei εepa- rate Profilteile umfasst, die zusammen den Hohlraum bezie- hungεweiεe jeden einzelnen der Hohlräume vierseitig begrenzen, die beiden Profilteile an mindestens einem Steg fest miteinander verbunden sind.The essence of the invention is that in the case of a current-conducting hollow profile with at least one continuous the cavity between two webs in each case, which comprises two separate profile parts, which together delimit the cavity or each individual cavity on four sides, the two profile parts being firmly connected to one another on at least one web.
Dadurch, dass das erfindungsgemässe stromleitende Hohlprofil zwei separate Profilteile umfasst, ist es bei mindestens gleicher Qualität schneller, rationeller und kosten- günstiger herεtellbar. Es ist nicht notwendig, im Strang- preεεverfahren Bolzen über Bügel zu preεsen, die oft ersetzt werden müssen. Ausserdem kann die Fertigung der Profilteile kontinuierlich erfolgen. Die feεte Verbindung der beiden Profilteile an mindestens einem Steg gewährleistet ihrerεeitε eine im Vergleich zu den biεher bekannten zweiteiligen Hohlprofilen deutlich grössere Stabilität und eine sehr gute Biegbarkeit. Sie ist zudem kalkulierbar und daher mit weniger Risiken verbunden als die Verbindung des oberen und unteren Profilteils beim Strangpreεεverfahren. Die kom- plexen Kundenanforderungen verlangen ein maεsives, stabiles Produkt. Die Fertigungstoleranzen (mechanische Werte, Mas- εe) und die Oberflächenqualität können mit dem erfindungs- gemässen Hohlprofil verbesεert werden.Because the current-conducting hollow profile according to the invention comprises two separate profile parts, it can be produced faster, more rationally and more cost-effectively with at least the same quality. It is not necessary to press bolts over brackets in the extrusion process, which often have to be replaced. In addition, the profile parts can be manufactured continuously. The firm connection of the two profile parts on at least one web ensures on their side a significantly greater stability and a very good bendability in comparison with the previously known two-part hollow profiles. It is also calculable and therefore associated with fewer risks than connecting the upper and lower profile parts in the extrusion process. The complex customer requirements require a solid, stable product. The manufacturing tolerances (mechanical values, dimensions) and the surface quality can be improved with the hollow profile according to the invention.
Bei bevorzugten Ausführungsbeiεpielen sind die beiden Profilteile mechanisch miteinander verbunden. Es kann εo eine beεεere Feεtigkeit, Streckbarkeit und Dehnbarkeit des Hohlprofils erreicht werden alε bei einer Verschweissung der Profilteile. Ausserdem entstehen keine Schweiεsnähte und es besteht nicht die Gefahr der Oxidation des oder der Hohlräume . Im folgenden werden das erfindungsgemässe εtro leitende Hohlprofil und das erfindungsgemäεse Herstellungsverfahren unter Bezugnahme auf die beigefügten Zeichnungen anhand einer Vielzahl von Ausführungsbeispielen detaillierter beschrieben. Es zeigen:In preferred exemplary embodiments, the two profile parts are mechanically connected to one another. Better strength, stretchability and extensibility of the hollow profile can be achieved than when the profile parts are welded. In addition, there are no weld seams and there is no risk of oxidation of the cavity or cavities. The inventive εtro-conducting hollow profile and the production method according to the invention are described in more detail below with reference to the attached drawings using a large number of exemplary embodiments. Show it:
Fig. 1, 2 - ein erstes Ausführungεbeiεpiel eines Hohlpro- fils mit mechanischer Verbindung an drei Ste- gen;1, 2 - a first embodiment of a hollow profile with mechanical connection on three webs;
Fig. 3, 4 - ein zweites Ausführungsbeispiel eines Hohlprofils mit mechanischer Verbindung an drei Stegen und mit einem Verbindungselement;3, 4 - a second embodiment of a hollow profile with mechanical connection on three webs and with a connecting element;
Fig. 5a-5k - verschiedene Möglichkeiten der Verbindung zweier Stegteile;Fig. 5a-5k - different ways of connecting two web parts;
Fig. 6 - ein drittes Ausführungsbeispiel eines Hohlpro- fils mit einem durchgehenden Hohlraum;6 shows a third exemplary embodiment of a hollow profile with a continuous cavity;
Fig. 7 - ein viertes Ausführungεbeiεpiel eines Hohlprofils mit zwei durchgehenden Hohlräumen;7 shows a fourth embodiment of a hollow profile with two continuous cavities;
Fig. 8 - ein fünftes Ausführungsbeiεpiel eines Hohlprofils mit drei durchgehenden Hohlräumen;8 shows a fifth exemplary embodiment of a hollow profile with three continuous cavities;
Fig. 9 - ein flach- und hochkant gebogenes Hohlprofil;Fig. 9 - a flat and edged hollow profile;
Fig. 10 - die Fertigung von Profilteilen in einer Con- form-Maschine; Fig. 11 - einen Schnitt gemass der Linie A-A in Fig. 10;10 - the production of profile parts in a conform machine; Fig. 11 - a section along the line AA in Fig. 10;
Fig. 12 - das Langziehen und Verbinden von Profilteilen in einer Ziehbank;Fig. 12 - the elongation and connection of profile parts in a drawing bench;
Fig. 13 - einen Schnitt gemass der Linie B-B in Fig. 12; undFig. 13 - a section along the line B-B in Fig. 12; and
Fig. 14 - einen Schnitt gemass der Linie C-C in Fig. 12.Fig. 14 - a section along the line C-C in Fig. 12.
Figuren 1 und 2Figures 1 and 2
Das im Querschnitt dargestellte Hohlprofil besteht aus zweiThe hollow profile shown in cross section consists of two
Profilteilen 1 und 2, die zwei durchgehende Hohlräume 3 und 4 begrenzen. Die beiden Profilteile 1, 2 sind an drei Stegen 6, 7 und 8 mechanisch fest miteinander verbunden, wobei beide Profilteile jeweilε einen Teil jedes Stegε bilden. Die Stegteile des Profilteils 2 weisen an ihrem Ende jeweils einen T-förmigen Fortsatz auf, der zwischen zwei L- förmigen Schenkeln des zugehörigen Stegteilε des Profil - teilε 1 gehalten ist. Somit hintergreift jeweils der eine Stegteil ein Stück des anderen Stegteils und die beiden Profilteile 1, 2 sind mit geringem Spiel fest miteinander verbunden .Profile parts 1 and 2, which delimit two continuous cavities 3 and 4. The two profile parts 1, 2 are mechanically firmly connected to one another on three webs 6, 7 and 8, both profile parts each forming part of each web. The web parts of the profile part 2 each have a T-shaped extension at their end, which is held between two L-shaped legs of the associated web part of the profile part 1. Thus, one web part engages behind a piece of the other web part and the two profile parts 1, 2 are firmly connected to one another with little play.
Zur Ermöglichung des Einführenε der T-förmigen Fortsätze zwischen die L-förmigen Schenkel wird das Profilteil 1 zunächst wie in Fig. 2 ersichtlich mit geöffneten, d.h. auseinandergespreizten, Schenkeln gefertigt und erst nach dem Zusammensetzen der beiden Profilteile 1, 2 werden die Schenkel auf die T-förmigen Fortsätze zu gebogen. Das beschriebene wie auch die nachfolgenden Ausführungsbei- εpiele eines erfindungsgemässen εtromleitenden Hohlprofils bestehen normalerweise im wesentlichen aus Kupfer oder Kup- ferqualitäten mit einem Kupfergehalt > 99.7%, insbesondere aus Elektrolyt-Kupfer, silberhaltigem Kupfer und/oder εau- erεtofffreiem Kupfer. Eine besonders geeignete Kupferqualität ist CuAgO .1P mit einer Festigkeit > 230 N/mm2. Das Hohlprofil weist so eine hohe elektriεche Leitfähigkeit, kaum veränderte mechanische Werte bei 250°C, eine εehr gute Biegbarkeit, innen und aussen eine saubere Oberfläche und nur minimalste Leckverluste auf. Es iεt ausserdem löt-und schweissbar .To enable the insertion of the T-shaped extensions between the L-shaped legs, the profile part 1 is first made with open, ie spread apart, legs, as can be seen in FIG. 2, and only after the two profile parts 1, 2 have been assembled, the legs are placed on the T-shaped extensions too bent. The described and the following exemplary embodiments of a current-conducting hollow profile according to the invention normally consist essentially of copper or copper grades with a copper content> 99.7%, in particular of electrolytic copper, silver-containing copper and / or oxygen-free copper. A particularly suitable copper quality is CuAgO .1P with a strength> 230 N / mm 2 . The hollow profile thus has a high electrical conductivity, hardly any changed mechanical values at 250 ° C, very good flexibility, inside and outside a clean surface and only minimal leakage losses. It is also solderable and weldable.
Figuren 3 und 4Figures 3 and 4
Bei diesem zweiten Ausführungεbeiεpiel beεteht daε Hohlprofil auε zwei Profilteilen 11 und 12, die zwei durchgehende Hohlräume 13 und 14 begrenzen und an drei Stegen 16, 17 und 18 mechaniεch feεt miteinander verbunden sind. Beim Steg 16 weisen der Stegteil des Profilteils 11 und beim Steg 18 der Stegteil des Profilteils 12 an ihrem Ende jeweils einen T- förmigen Fortsatz auf, der zwischen zwei L-förmigen Schenkeln des zugehörigen Stegteilε des jeweils anderen Profilteils gehalten iεt. Beim Steg 17 erfolgt die Verbindung der beiden Stegteile mittels eines Verbindungselements 15, das die Form zweier umgekehrt zusammengesetzter T-Profile hat, wobei das eine T-Profil zwischen zwei L-förmigen Schenkeln des zugehörigen Stegteils des Profilteils 11 und das andere T-Profil zwischen zwei L-förmigen Schenkeln des zugehörigen Stegteilε deε Profilteils 12 gehalten ist. Dieses zusätzliche separate Verbindungselement 15 bringt Vorteile beim Biegen des Hohlprofils.In this second exemplary embodiment, the hollow profile consists of two profile parts 11 and 12, which delimit two continuous cavities 13 and 14 and are mechanically connected to one another at three webs 16, 17 and 18. At the web 16, the web part of the profile part 11 and at the web 18 the web part of the profile part 12 each have a T-shaped extension at their end, which is held between two L-shaped legs of the associated web part of the other profile part. In the case of the web 17, the two web parts are connected by means of a connecting element 15, which has the shape of two inverted T-profiles, one T-profile between two L-shaped legs of the associated web part of the profile part 11 and the other T-profile between two L-shaped legs of the associated web part of the profile part 12 is held. This additional separate connecting element 15 brings advantages when bending the hollow profile.
Auch hier werden zur Ermöglichung des Einführens der T-för- migen Fortsätze der Stegteile und der T-Profile des Verbindungselements 15 zwischen die L-förmigen Schenkel die Profilteile 11 und 12 zunächst wie in Fig. 4 ersichtlich mit geöffneten, d.h. auseinandergespreizten, Schenkeln gefer- tigt und erst nach dem Zusammensetzen der beiden Profil- teile 11, 12 werden die Schenkel auf die T-förmigen Fortsätze bzw. die T-Profile zu gebogen.Here, too, to enable insertion of the T-shaped extensions of the web parts and the T-profiles of the connecting element 15 between the L-shaped legs, the profile parts 11 and 12 are initially opened, as can be seen in FIG. spread apart, legs manufactured and only after the assembly of the two profile parts 11, 12, the legs are bent to the T-shaped extensions or the T-profiles.
Figuren 5a bis 5kFigures 5a to 5k
In diesen Figuren sind verεchiedene Möglichkeiten der Ver- bindung zweier Stegteile dargeεtellt.Various possibilities of connecting two web parts are shown in these figures.
Die Fig. 5a biε 5d zeigen mechaniεche Verbindungen zweier Stegteile, bei denen der eine Stegteil ein Stück deε anderen Stegteilε hintergreift.5a to 5d show mechanical connections between two web parts, in which one web part engages behind a piece of the other web part.
Bei den mechanischen Verbindungen zweier Stegteile gemass den Fig. 5e bis 5g ist jeweils ein separateε Verbindungselement 25; 35 bzw. 65 vorhanden, das ein Stück jedes der beiden Stegteile hintergreift.In the mechanical connections of two web parts according to FIGS. 5e to 5g, a separate connecting element 25; 35 or 65 available, which engages behind a piece of each of the two web parts.
Fig. 5h zeigt eine Widerstandε-Schweiεsverbindung und Fig. 5i eine Schweissverbindung mit Schweiεsnaht 85, während in Fig. 5k eine Lötverbindung mit Lötmetall 55 dargestellt ist. Das Schweissen/Löten hat eine sehr feste Verbindung zur Folge . Grundsätzlich iεt auch ein Zusammenkleben der beiden Stegteile gemass Fig. 5j denkbar, obwohl das Kleben von Cu- Werkεtoffen noch relativ unerforscht iεt.5h shows a resistance weld connection and FIG. 5i shows a weld connection with weld seam 85, while in FIG. 5k a solder connection with solder 55 is shown. The welding / soldering results in a very firm connection. In principle, it is also conceivable to glue the two web parts together according to FIG. 5j, although the gluing of Cu materials is still relatively unexplored.
Figur 6Figure 6
Bei dieεem dritten Ausführungsbeispiel eines erfindungsge- mäsεen Hohlprofilε begrenzen zwei Profilteile 21 und 22, die an zwei Stegen 26 und 27 feεt miteinander verbunden sind, einen einzigen durchgehenden Hohlraum 23. Die Verbin- düngen εind hier nur εchematiεch angedeutet und können mechanische, Schweiεs-, Löt- oder Klebeverbindungen sein.In this third exemplary embodiment of a hollow profile according to the invention, two profile parts 21 and 22, which are firmly connected to one another at two webs 26 and 27, delimit a single continuous cavity 23. The connections are only indicated schematically here and can be mechanical, welding, Be soldered or adhesive connections.
Figur 7Figure 7
Bei diesem vierten Ausführungsbeiεpiel εind zwei durchge- hende Hohlräume 33 und 34 vorhanden, die durch zwei Profil - teile 31 und 32 begrenzt werden, die an drei Stegen 36, 37 und 38 fest miteinander verbunden sind. Der im Vergleich zum dritten Ausführungsbeispiel zusätzliche mittlere Steg 37 ermöglicht eine stärkere Belastung des Hohlprofils, ohne dass es sich verbiegt.In this fourth exemplary embodiment, there are two continuous cavities 33 and 34 which are delimited by two profile parts 31 and 32 which are firmly connected to one another at three webs 36, 37 and 38. The middle web 37, which is additional in comparison to the third exemplary embodiment, enables the hollow profile to be subjected to greater stress without it bending.
Figur 8Figure 8
Das Hohlprofil gemäsε dem dargeεtellten fünften Auεfüh- rungεbeiεpiel beεteht aus zwei Profilteilen 41 und 42, die drei durchgehende Hohlräume 43, 44 und 45 begrenzen. Die beiden Profilteile 41, 42 sind an vier Stegen 46, 47, 48 und 49 fest miteinander verbunden. Die Belaεtbarkeit dieseε Hohlprofilε iεt aufgrund der vier Stege noch gröεεer. Die Anzahl der durchgehenden Hohlräume kann auch beliebig grösser sein.The hollow profile according to the fifth exemplary embodiment shown consists of two profile parts 41 and 42 which delimit three continuous cavities 43, 44 and 45. The two profile parts 41, 42 are firmly connected to one another on four webs 46, 47, 48 and 49. The resilience of this hollow profile is even greater due to the four webs. The number of continuous cavities can also be arbitrarily larger.
Figur 9Figure 9
Daε dargeεtellte Hohlprofil 50 mit den durchgehenden Hohlräumen 53 und 54 ist flachkant mit einem Radius Rx und hochkant mit einem Radiuε R2 gebogen. Bei den erfindungsge- mässen Hohlprofilen können flachkant Radien Rx kleiner als 65 mm und hochkant Radien R2 kleiner als 80 mm erreicht werden .The hollow profile 50 shown with the continuous cavities 53 and 54 is bent flat with a radius R x and upright with a radius R 2 . With the hollow profiles according to the invention, flat radii R x smaller than 65 mm and vertical radii R 2 smaller than 80 mm can be achieved.
Figuren 10 und 11Figures 10 and 11
Die Profilteile und gegebenenfalls die Verbindungselemente der erfindungsgemässen Hohlprofile werden vorzugsweiεe mittels einer Conform-Maεchine 70 im Confor -Verfahren kontinuierlich auε einem Draht 80 auε Kupfer- oder einer Kupferqualität mit einem Durchmesser von z.B. 16 mm gefertigt. Der Draht 80 wird über eine Spule 71 entlang einer Führung 72 zu einer Dichtnase 73 geführt und gelangt von dort in ein in einem Werkzeughalter 74 angeordnetes und mittelε einer Heizung 76 erhitzteε Werkzeug 75, wo er zum entεpre- chenden Basiε-Profilteil bzw. Baεiε-Verbindungεelement geformt wird. Die Verformung des Drahtes 80 erfolgt durch Kneten und Presεen. Das Basiε-Profilteil bzw. Baεiε-Verbindungεelement wird εchlieεslich zur Weiterverarbeitung auf eine Spule gewickelt.The profile parts and, if appropriate, the connecting elements of the hollow profiles according to the invention are preferably continuously made from a wire 80 made of copper or a copper quality with a diameter of e.g. 16 mm. The wire 80 is guided via a coil 71 along a guide 72 to a sealing lug 73 and from there it arrives in a tool 75 arranged in a tool holder 74 and heated by a heater 76, where it leads to the corresponding base profile part or base Connection element is formed. The wire 80 is deformed by kneading and pressing. The base profile part or base connection element is finally wound onto a coil for further processing.
Figuren 12 biε 14 Die auf Spulen 77, 78 und 79 gewickelten Baεiε-Profilteile 81, 82 und gegebenenfalls Basis-Verbindungselemente 83 wer- den einer Ziehbank 90 zugeführt, wobei die Basis-Profilteile 81 und 82 um an einer Dornfixierung 93 befestigte Dorne 91 und 92 mit Dornköpfen 911 bzw. 921 herum angeordnet werden. Mittels nicht dargestellter Ziehangeln werden die Basis-Profilteile 81, 82 und gegebenenfalls das Baεiε-Verbin- dungεelement 83 dann durch eine Ziehmatrize 94 hindurch auf ihre Endlänge gezogen. Im vorliegenden Fall umfaεst das Hohlprofil nur die beiden Profilteile und kein Verbindungselement .FIGS. 12 to 14. The base profile parts 81, 82 which are wound on coils 77, 78 and 79 and, if appropriate, base connecting elements 83 are a drawing bench 90, the base profile parts 81 and 82 being arranged around mandrels 91 and 92 fastened to a mandrel fixation 93 with mandrel heads 911 and 921, respectively. The base profile parts 81, 82 and possibly the base connection element 83 are then pulled through their length through a drawing die 94 by means of drawing bars (not shown). In the present case, the hollow profile comprises only the two profile parts and no connecting element.
Gleichzeitig mit dem Ziehen werden beim Durchgang durch die Ziehmatrize 94 die geöffneten Schenkel der Stegteile des Basiε-Profilteilε 81 auf die T-förmigen Fortsätze der Stegteile deε Baεiε-Profilteilε 82 zu gebogen. Die beiden Pro- filteile sind danach feεt miteinander verbunden.Simultaneously with the pulling, the open legs of the web parts of the base profile part 81 are bent onto the T-shaped extensions of the web parts of the base profile part 82 during the passage through the drawing die 94. The two profile parts are then firmly connected to one another.
Bei Schweiss-, Löt- oder Klebverbindungen wird eine entsprechende Zusatzstation 95 vor der Ziehbank 90 installiert .In the case of welded, soldered or adhesive connections, a corresponding additional station 95 is installed in front of the drawing bench 90.
Zu den vorbeschriebenen stromleitenden Hohlprofilen sind weitere konεtruktive Variationen realisierbar. Hier ausdrücklich erwähnt εeien noch:In addition to the previously described current-carrying hollow profiles, further design variations can be implemented. Here explicitly mentioned:
- Die Trennstellen der Stege müεεen nicht unbedingt in der Mitte εein, εondern können jeweils frei gewählt werden.- The separation points of the webs do not necessarily have to be in the middle, but can be chosen freely.
- Bei zwei und mehr durchgehenden Hohlräumen können die innenliegenden Stege auch nur als Stützung verwendet werden, d.h. ohne feste Verbindung.- If there are two or more continuous cavities, the internal webs can also only be used as a support, i.e. without a fixed connection.
E e

Claims

Patentansprüche claims
1. Stromleitendes Hohlprofil (50) mit mindestens einem durchgehenden Hohlraum (3 , 4 ; 13 , 14 ; 23 ; 33 , 34 ;43 , 44 , 45 53,54) zwischen jeweilε zwei Stegen (6 , 7 , 8 ; 16 , 17 , 18 ; 26 , 27 , 36, 37, 38;46, 47,48,49) , daε zwei εeparate Profilteile (1,2 11, 12 ; 21, 22 ;31, 32;41,42) umfasεt , die zuεammen den Hohlraum beziehungεweise jeden einzelnen der Hohlräume vierseitig begrenzen, dadurch gekennzeichnet, dasε die beiden Profilteile an mindestens einem Steg fest miteinander verbunden εind.1. Current-conducting hollow profile (50) with at least one continuous cavity (3, 4; 13, 14; 23; 33, 34; 43, 44, 45 53,54) between two webs (6, 7, 8; 16, 17) , 18; 26, 27, 36, 37, 38; 46, 47, 48, 49), that comprises two separate profile parts (1, 2 11, 12; 21, 22; 31, 32; 41, 42), which together limit the cavity or each individual one of the cavities on four sides, characterized in that the two profile parts are firmly connected to one another on at least one web.
2. Hohlprofil nach Anspruch 1, dadurch gekennzeichnet, dass die beiden Profilteile an mindestenε zwei Stegen feεt miteinander verbunden sind.2. Hollow profile according to claim 1, characterized in that the two profile parts are firmly connected to one another on at least two webs.
3. Hohlprofil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dasε beide Profilteile jeweilε einen Teil jedes Stegs bilden und vorzugsweise an jedem Steg fest miteinander verbunden sind.3. Hollow profile according to claim 1 or 2, characterized in that both profile parts each form part of each web and are preferably firmly connected to each other on each web.
4. Hohlprofil nach Anspruch 3, dadurch gekennzeichnet, dass die beiden jeweils zusammengehörenden Stegteile mechanisch verbunden sind, insbesondere indem der eine Stegteil ein Stück des anderen Stegteils hintergreift.4. Hollow profile according to claim 3, characterized in that the two respective web parts belonging together are mechanically connected, in particular by one web part engaging behind a piece of the other web part.
5. Hohlprofil nach Anspruch 4, dadurch gekennzeichnet, dass zur mechanischen Verbindung mindestenε zweier zusammengehörender Stegteile ein separates Verbindungselement (15;25; 35;65) vorhanden iεt, das insbesondere ein Stück je- des der beiden zusammengehörenden Stegteile hintergreift.5. Hollow profile according to claim 4, characterized in that a separate connecting element (15; 25; 35; 65) is present for the mechanical connection of at least two associated web parts, which in particular one piece each engages behind the two web parts that belong together.
6. Hohlprofil nach Anspruch 3, dadurch gekennzeichnet, dass die beiden jeweils zusammengehörenden Stegteile miteinander verschweiss , verlötet oder verklebt εind.6. Hollow profile according to claim 3, characterized in that the two respective web parts belonging together are welded, soldered or glued together.
7. Hohlprofil nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass es im wesentlichen aus Kupfer oder einer Kupferqualität mit einem Kupfergehalt > 99.7% iεt, insbesondere aus Elektrolyt-Kupfer, silberhaltigem Kupfer oder sauerεtofffreiem Kupfer.7. Hollow profile according to one of claims 1 to 6, characterized in that it is essentially made of copper or a copper quality with a copper content> 99.7%, in particular made of electrolytic copper, silver-containing copper or oxygen-free copper.
8. Verfahren zur Herstellung eines stromleitenden Hohlprofils (50) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daεs zunächst zwei separate Profilteile (1, 2; 11, 12; 21 ,22; 31 ,32; 41 ,42) hergestellt werden und diese beiden Profilteile dann an mindestens einem Steg (6,7,8; 16, 17, 18;26, 27 ; 36 , 37 , 38 ; 46 , 47 , 48 , 49 ) fest miteinander verbunden werden, so dass sie mindestenε einen durchgehenden Hohlraum (3 , 4 ; 13 , 14 ; 23 ; 33 , 34 ;43 , 44 , 45 ; 53 , 54) vierseitig begrenzen.8. A method for producing a current-conducting hollow profile (50) according to one of claims 1 to 7, characterized in that first two separate profile parts (1, 2; 11, 12; 21, 22; 31, 32; 41, 42) are produced and these two profile parts are then firmly connected to one another on at least one web (6, 7, 8; 16, 17, 18; 26, 27; 36, 37, 38; 46, 47, 48, 49) so that they are at least one limit the continuous cavity (3, 4; 13, 14; 23; 33, 34; 43, 44, 45; 53, 54) on four sides.
9. Verfahren nach Anspruch 8 zur Herstellung eines Hohlprofilε, das mindestens einen Stegteil umfasεt, von dem ein Stück von einem anderen Stegteil oder einem Verbindungselement (15;25;35; 65) hintergriffen ist, dadurch gekennzeichnet, dasε die Profilteile so hergeεtellt werden, daεε daε vom anderen Stegteil oder vom Verbindungselement zu hintergreifende Stegteilstück zur Einführung des hinter- greifenden Stegteils oder Verbindungselementε geöffnet iεt, diese beiden Auεgangs-Profilteile und gegebenenfalls das Verbindungselement zuεammengefügt v/erden, εo daεs das hintergreifende Stegteil oder Verbindungselement in das geöffnete zu hintergreifende Stegteilεtück eingeführt wird, und schliesslich das zu hintergreifende Stegteilstück in Rich- tung deε hintergreifenden Stegteilε oder Verbindungεele- mentε verbogen wird, so dasε es von diesem hintergriffen wird.9. The method according to claim 8 for producing a hollow profile, which comprises at least one web part, a piece of which is engaged by another web part or a connecting element (15; 25; 35; 65), characterized in that the profile parts are manufactured in such a way that that the other web part or the connecting element to be gripped behind for the introduction of the backing web part or connecting element is opened, these two initial profile parts and, if appropriate, that Connect / connect the connecting element, so that the engaging web part or connecting element is inserted into the open web part to be engaged, and finally the web portion to be engaged is bent in the direction of the engaging web part or connecting element so that it engages behind it.
10. Verfahren nach Anspruch 8 oder 9, dadurch ge- kennzeichnet, daεε die Profilteile vor, während oder nach dem feεt miteinander Verbinden auf einer Ziehbank (90) auf die gewünεchte Länge gezogen werden.10. The method according to claim 8 or 9, characterized in that the profile parts are drawn to the desired length on a drawing bench (90) before, during or after the fixed connection to one another.
11. Verfahren nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, dass durch fortlaufendes Kneten und Pressen von von einem Draht (80) stammendem Kupfer oder11. The method according to any one of claims 8 to 10, characterized in that by continuous kneading and pressing of copper or from a wire (80)
Kupferqualitäten mit einem Kupfergehalt > 99.7% Profilteile und gegebenenfallε Verbindungεelemente kontinuierlich her- geεtellt werden. Copper grades with a copper content> 99.7% of profile parts and possibly connecting elements are continuously manufactured.
PCT/CH1999/000380 1998-08-19 1999-08-18 Electrically-conductive hollow profile WO2000010750A1 (en)

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