DE102004053478A1 - Method for joining and bonding of thermoplastic components - Google Patents

Method for joining and bonding of thermoplastic components Download PDF

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Publication number
DE102004053478A1
DE102004053478A1 DE102004053478A DE102004053478A DE102004053478A1 DE 102004053478 A1 DE102004053478 A1 DE 102004053478A1 DE 102004053478 A DE102004053478 A DE 102004053478A DE 102004053478 A DE102004053478 A DE 102004053478A DE 102004053478 A1 DE102004053478 A1 DE 102004053478A1
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Germany
Prior art keywords
components
styrene
group
acrylonitrile
connecting element
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DE102004053478A
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German (de)
Inventor
Bernt Dipl.-Ing. Küpper
Jörg Mattusch
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Volkswagen AG
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Volkswagen AG
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Priority to DE102004053478A priority Critical patent/DE102004053478A1/en
Priority to GB0522076A priority patent/GB2419844B/en
Publication of DE102004053478A1 publication Critical patent/DE102004053478A1/en
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B29C66/712—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined the composition of one of the parts to be joined being different from the composition of the other part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
    • B29K2033/04—Polymers of esters
    • B29K2033/12—Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2055/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2023/00 - B29K2049/00, e.g. having a vinyl group, as moulding material
    • B29K2055/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2059/00—Use of polyacetals, e.g. POM, i.e. polyoxymethylene or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/12—Thermoplastic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2623/00—Use of polyalkenes or derivatives thereof for preformed parts, e.g. for inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7172—Fuel tanks, jerry cans

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zum Verbinden von Kunststoffbauteilen sowie einen Verbund von Kunststoffbauteilen, insbesondere von schmelzbaren bzw. thermoplastischen Kunststoffbauteilen aus chemisch unterschiedlichen Materialien oder Materialgruppen. Mittels eines Verbindungselementes, insbesondere aus ABS, welches sich mit unterschiedlichsten Kunststoffen verschweißen lässt, kann ein fester Verbund zwischen Bauteilen aus unterschiedlichsten Kunststoffen erzeugt werden.The invention relates to a method for joining plastic components and a composite of plastic components, in particular of fusible or thermoplastic plastic components made of chemically different materials or material groups. By means of a connecting element, in particular made of ABS, which can be welded with a wide variety of plastics, a solid bond between components made of different plastics can be produced.

Description

Die Erfindung betrifft ein Verfahren zum Verbinden von Kunststoffbauteilen sowie einen Verbund von schmelzbaren bzw. thermoplastischen Kunststoffbauteilen, insbesondere aus chemisch unterschiedlichen Materialien oder Materialgruppen, welche sich beispielsweise durch Schweißen nicht miteinander verbinden lassen.The The invention relates to a method for joining plastic components and a composite of fusible or thermoplastic plastic components, in particular from chemically different materials or material groups, which do not connect to each other by welding, for example to let.

Kunststoffe werden zunehmend bei der Herstellung unterschiedlichster Produkte, wie beispielsweise Gehäusen, Behälter, Rohren etc., eingesetzt. Dabei ist es in vielen Anwendungsfällen notwendig, einzelne Bauteile oder Baugruppen fest miteinander zu verbinden.plastics are increasingly used in the production of a wide variety of products, such as housings, Container, Pipes etc., used. It is necessary in many applications, to connect individual components or assemblies firmly together.

Das Verbinden von schmelzbaren bzw. thermoplastischen Kunststoffbauteilen aus identischen oder chemisch im Wesentlichen identischen Materialien erfolgt dabei hauptsächlich durch Schweißverfahren wie beispielsweise Widerstands- oder induktives Elektroschmelzen, Spiegelschweißen, Laserschweißen, Ultraschallschweißen oder Heißgasschweißen. Das Verschweißen der Kunststoffe erfolgt dabei durch örtliches Erwärmen der Schweißränder der Bauteile auf die Schweißtemperatur des Kunststoffs und Druckeinwirkung. Die Kunststoffe erweichen beim Erwärmen und fließen ineinander. Dabei hängt das zu wählende Schweißverfahren vom Kunststoffmaterial, der geforderten Festigkeit der Verbindung, der Werkstückform und den Anlagenkosten ab.The Joining of fusible or thermoplastic plastic components from identical or chemically substantially identical materials takes place mainly by welding process such as resistance or inductive electrofusion, Plate welding, Laser welding, ultrasonic welding or hot gas welding. The weld together the plastics is carried out by local heating of the Welding edges of the Components on the welding temperature of the plastic and pressure. The plastics soften when Heat and flow each other. It hangs the one to choose welding processes of the plastic material, the required strength of the connection, the workpiece shape and the equipment costs.

Beim Verbinden von Kunststoffbauteilen durch Schweißen, insbesondere bei Kunststoffen, welche sich schwer durch einfaches Schweißen verbinden lassen, kann das Erwärmen der Schweißränder durch ein im oder am Schweißrand der Bauteile angebrachtes Heizelement, welches die Schweißränder einschmilzt, erfolgen. Die DE 199 16 494 A1 offenbart beispielsweise ein Verfahren zur Herstellung eines Kunststoffbauteils, insbesondere eines Kraftstofftanks, bei welchem zwischen zwei zu verschweißenden Schalenteilen ein Heizelement angeordnet wird, welches sich beim Zusammenpressen der Schalenteile in den Kunststoff einschmilzt und so beim Zusammenpressen der Bauteile eine Verschweißung erzeugt. Das Heizelement ist vorzugsweise ein Heizdraht, welcher sich durch elektrischen Strom, Induktion durch Wärmeleitung oder durch Mikrowellen erwärmen lässt.When joining plastic components by welding, in particular in plastics, which are difficult to connect by simple welding, the heating of the welding edges can be effected by a heating element mounted in or at the welding edge of the components, which melts the welding edges. The DE 199 16 494 A1 discloses, for example, a method for producing a plastic component, in particular a fuel tank, in which a heating element is arranged between two shell parts to be welded, which melts into the plastic during compression of the shell parts and thus generates a seal when the components are pressed together. The heating element is preferably a heating wire, which can be heated by electric current, induction by conduction or by microwaves.

Weiterhin ist es bekannt zur Erzeugung besonders dichter und stabiler Verbindungen sogenannte Schweißmuffen einzusetzen. Zum Verschweißen von Kunststoffbauteilen, insbesondere von Kraftstoffrohren mit einem Kraftstofftank, wird gemäß der WO 02/11973 A1 im Ringspalt zwischen dem Einsteckbereich des Tanks und dem Einsteckrohr eine Schweißmuffe aus Kunststoff eingesetzt, welche mit einem Heizelement versehen ist. Der Tank und das Rohr bestehen aus dem gleichen Kunststoff, insbesondere aus Polyethylen (PE). Um eine gute Schweißverbindung mittels der Muffe herzustellen, wird eine Muffe aus dem gleichen Kunststoff eingesetzt.Farther It is known to produce particularly dense and stable compounds so-called welding sleeves use. For welding of plastic components, in particular of fuel pipes with a Fuel tank, according to the WO 02/11973 A1 in the annular gap between the insertion area of the tank and the insertion tube a welding sleeve made of plastic, which is provided with a heating element. The tank and the pipe consist of the same plastic, especially polyethylene (PE). To have a good weld By means of the sleeve, a sleeve is made of the same Plastic used.

In der GB 2 304 073 A erfolgt das Verschweißen von Hohlkörpern, wie beispielsweise Rohren, aus gleichen oder verschiedenen, z.T. auch vernetzten Kunststoffen, insbesondere aus verschiedenen Kunststoffen aus der Gruppe der Polyolefine, wie beispielsweise Polyethylene, Polypropylene, Polybutylene und Copolymere von Ethylenen, mittels eines elektrisch heizbaren Verbindungselementes aus einem vernetzten Kunststoff aus der Gruppe der Polyolefine, insbesondere aus Polyethylen, mit einem in das Verbindungselement eingebetteten Heizelement.In the GB 2 304 073 A the welding of hollow bodies, such as pipes, of the same or different, partially crosslinked plastics, in particular of various plastics from the group of polyolefins, such as polyethylenes, polypropylenes, polybutylenes and copolymers of ethylene, by means of an electrically heatable connecting element of a crosslinked Plastic from the group of polyolefins, in particular polyethylene, with a heating element embedded in the connecting element.

In einem in der EP 1 129 316 B1 offenbarten Verfahren wird ebenfalls eine Verbindung von Bauteilen aus verschiedenen Kunststoffen aus der Gruppe der Polyolefine mittels eines Verbindungselementes, welches beheizbar ist, erzeugt. Das Verbindungselement umschließt die zu verbindenden Bauteile und enthält dabei abwechselnde Abschnitte der unterschiedlichen Materialien, beispielsweise aus Polyethylen (PE) und Polypropylen (PP) der zu verbindenden Bauteile aus PE und PP. Die Ausführung des Verbindungselementes mit den abwechselnden Abschnitten ist dabei sehr aufwendig.In one in the EP 1 129 316 B1 The disclosed method also produces a connection of components made of different plastics from the group of polyolefins by means of a connecting element which is heatable. The connecting element encloses the components to be connected and contains alternating sections of the different materials, for example of polyethylene (PE) and polypropylene (PP) of the components to be joined from PE and PP. The design of the connecting element with the alternating sections is very expensive.

Die Verfahren der GB 2 304 073 A und der EP 1 129 316 B1 sind zwar geeignet, Bauteile aus unterschiedlichen Materialien zu verbinden, jedoch ist die Materialauswahl auf Materialien aus der Gruppe der Polyolefine eingeschränkt. Ebenso ist durch das Verbindungselement, welches sehr kompakt ist oder die zu verbindenden Bauteile umschließen muss, die Anwendung sehr eingeschränkt.The procedures of GB 2 304 073 A and the EP 1 129 316 B1 Although suitable for joining components made of different materials, the material selection is limited to materials from the group of polyolefins. Likewise, the application is very limited by the connecting element, which is very compact or must enclose the components to be connected.

Für viele Anwendungsfälle ist es jedoch erforderlich, sowohl weitere Kunststoffe miteinander zu verbinden, als auch bei der konstruktiven Gestaltung der Verbindung flexiblere Möglichkeiten zu haben. Die dazu bekannten Klebeverfahren liefern oftmals unbefriedigende bzw. nicht ausreichend stabile Verbindungen und sind sehr zeitaufwändig.For many applications, however, it is necessary to ver both more ver as well as having more flexibility in the design of the connection. The adhesive methods known to provide often unsatisfactory or not sufficiently stable compounds and are very time consuming.

Ein weiterer Nachteil der genannten Verfahren besteht außerdem darin, dass sich stoffschlüssige Verbindungen aus unterschiedlichen Kunststoffen nicht oder nur schwer beim Recycling voneinander trennen lassen.One Another disadvantage of said methods is also that that cohesive Compounds made of different plastics are difficult or impossible separate from each other during recycling.

Aufgabe der Erfindung ist es daher, flexible Möglichkeiten zum festen und stabilen Verbinden von Bauteilen aus unterschiedlichsten Kunststoffen zur Verfügung zu stellen sowie ein sortenreines Recycling verbundener Bauteile zu gewährleisten und damit die Nachteile des Standes der Technik zu überwinden.task The invention is therefore flexible options for fixed and stable connection of components made of different plastics to disposal as well as a sorted recycling of connected components to ensure and thus overcome the disadvantages of the prior art.

Die Lösung gelingt mit einem Verfahren zum Verbinden von Kunststoffe gemäß Anspruch 1 und einem Verbund von Kunststoffen gemäß Anspruch 10.The solution succeeds with a method for joining plastics according to claim 1 and a composite of plastics according to claim 10.

Mit dem erfindungsgemäßen Verfahren können Bauteile aus gleichen und/oder unterschiedlichen thermoplastischen Kunststoffen, welche der Gruppe der Polyolefine (z.B. PE, PP, PB, PMP), der Gruppe der Styrolpolymere (z.B. PS, ABS, SB, SAN, ASA), der Gruppe der Polyacrylate (z.B. PMMA, Polyacrylamid), der Gruppe der Polyvenylchloride (z.B. PVC-P, PVC-U), der Gruppe der Polyamide z.B. PA6.6, PA11, PA12), der Gruppe der Celluloseester (z.B. CA, CP, CAB), der Gruppe der Polyacetale (z.B. POM), der Gruppe der linearen Polyester (z.B. PET, PBT) und/oder der Gruppe der Polycarbonate angehören, miteinander verbunden werden. Dazu wird ein Verbindungselement aus einem thermoplastischen Kunststoff, welcher sich durch Schweißen mit jedem der zu verbindenden Bauteile verbinden lässt, zwischen und/oder um die zu verbindenden Regionen der Bauteile aus gleichen und/oder unterschiedlichen Kunststoffen angeordnet und anschließend mit diesen verschweißt.With the method according to the invention can Components made of the same and / or different thermoplastic Plastics which belong to the group of polyolefins (for example PE, PP, PB, PMP), the group of styrenic polymers (e.g., PS, ABS, SB, SAN, ASA), the group of polyacrylates (e.g., PMMA, polyacrylamide), the group the polyvinyl chlorides (e.g., PVC-P, PVC-U), the group of polyamides e.g. PA6.6, PA11, PA12), the group of cellulose esters (e.g. CP, CAB), the group of polyacetals (e.g., POM), the group of linear polyester (e.g., PET, PBT) and / or the group of polycarbonates belong, be connected to each other. For this purpose, a connection element is made a thermoplastic material which can be welded by welding connect each of the components to be connected, between and / or around the To be joined regions of the components of the same and / or different Arranged plastics and then welded to these.

Das Verschweißen erfolgt durch Wärmeeinwirkung auf das Verbindungselement und die zu verbindenden Regionen der Bauteile, so dass die Bauteile jeweils mit dem Verbindungselement verschmelzen und nach dem Abkühlen eine feste Verbindung zwischen den Bauteilen entsteht.The weld together takes place by heat on the connecting element and the regions to be connected Components, so that the components each with the connecting element melt and after cooling a firm connection between the components arises.

Die thermoplastischen Kunststoffe zeichnen sich dadurch aus, dass diese bei Erhöhung der Temperatur nach Überschreiten des Erweichungspunktes schmelzen, sich Warmverformen lassen und nach der Abkühlung wieder erstarren. Der Vorgang ist beliebig oft wiederholbar.The Thermoplastic plastics are characterized by the fact that these at increase the temperature after exceeding melt the softening point, can be thermoformed and after cooling to freeze again. The process can be repeated as often as desired.

Der erfindungsgemäße Verbund von Bauteilen aus thermoplastischen Kunststoffen umfasst zumindest die zu verbindenden Bauteile aus gleichen und/oder unterschiedlichen thermoplastischen Kunststoffen aus der Gruppe der Polyolefine (z.B. PE, PP, PB, PMP), der Gruppe der Styrolpolymere (z.B. PS, ABS, SB, SAN, ASA), der Gruppe der Polyacrylate (z.B. PMMA, Polyacrylamid), der Gruppe der Polyvenylchloride (z.B. PVC-P, PVC-U), der Gruppe der Polyamide z.B. PA6.6, PA11, PA12), der Gruppe der Celluloseester (z.B. CA, CP, CAB), der Gruppe der Polyacetale (z.B. POM), der Gruppe der linearen Polyester (z.B. PET, PBT) und/oder der Gruppe der Polycarbonate und ein zwischen den und/oder um die zu verbindenden Bauteilen angeordnetes und mit diesen verschweißtes Verbindungselement aus einem thermoplastischen Kunststoff.Of the composite according to the invention of thermoplastic components at least the components to be joined from the same and / or different thermoplastic resins from the group of polyolefins (e.g. PE, PP, PB, PMP), the group of styrene polymers (e.g., PS, ABS, SB, SAN, ASA), the group of polyacrylates (e.g., PMMA, polyacrylamide), the Group of polyvinyl chlorides (e.g., PVC-P, PVC-U), the group of Polyamides e.g. PA6.6, PA11, PA12), the group of cellulose esters (e.g., CA, CP, CAB), the group of polyacetals (e.g., POM), the group the linear polyester (e.g., PET, PBT) and / or the group of polycarbonates and a disposed between and / or around the components to be connected and welded with these Connecting element made of a thermoplastic material.

Das Erwärmen der Schweißränder der Bauteile, d.h. deren zu verbindenden Regionen und des Verbindungselementes auf eine erforderliche Schweißtemperatur erfolgt vorzugsweise mittels eines im Verbindungselement und/oder am Verbindungselement befindlichen Heizelementes, insbesondere mittels eines elektrischen Heizdrahtes.The Heat the welding edges of the Components, i. their regions to be connected and the connecting element to a required welding temperature Preferably, by means of a in the connecting element and / or on the connecting element heating element, in particular by means of an electric heating wire.

Eine besonders einfache und flexible Verbindungsgestaltung ergibt sich, wenn das Verbindungselement aus einer Kunststofffolie ausgeführt wird, welche vor dem Schweißen zwischen die zu verbindenden Bauteilen angeordnet, bzw. eingelegt wird. Die Folie kann an vielfältigste Gestaltungen und Formen von zu verbindenden Bauteilen angepasst werden, so dass nicht nur ebene Schweißränder miteinander verbindbar sind.A particularly simple and flexible connection design results, when the connecting element is made of a plastic film, which before welding arranged between the components to be connected, or inserted becomes. The film can be varied Adapted designs and shapes of components to be connected so that not only flat welding edges can be connected together are.

Als besonders geeignet haben sich Verbindungselemente aus ABS (Acrylnitril-Butadien-Styrol), insbesondere tiefgezogene ABS-Folien mit eingebettetem Heizdraht erwiesen.When Particularly suitable fasteners made of ABS (acrylonitrile-butadiene-styrene), in particular deep-drawn ABS films with embedded heating wire proved.

ABS ist ein Terpolymer, das aus den drei Grundmonomeren Acrylnitril, Butadien und Styrol zusammengesetzt ist.SECTION is a terpolymer consisting of the three basic monomers acrylonitrile, Butadiene and styrene is composed.

Figure 00040001
Figure 00040001

Die drei Monomerarten sind in statistischer Verteilung im linearen Makromolekül angeordnet. ABS wird durch Massepolymerisation oder Propfpolymersiation hergestellt.The three monomer types are arranged in random distribution in the linear macromolecule. ABS is produced by bulk polymerization or graft polymerization.

Verbindungselemente aus ABS sind geeignet, mit einer Vielzahl von unterschiedlichen thermoplastischen Kunststoffen zu verschmelzen und zwischen diesen eine Verbindung herzustellen. Insbesondere Bauteile welche PS (Polystyrol), SAN (Styrol-Acrylnitril-Copolymerisat), PMMA (Polymethylmethacrylat), PVC (Polyvenylchlorid), PC (Polycarbonat), ABS (Acrylnitril-Butadien-Styrol), PPE (Modifizierte Polyether), PPE/PA (Modifizierte Polyether/Polyamid), PPE/PS (Modifizierte Polyether/Polystyrol), PPE/PS/SAN (Modifizierte Polyether/Polystyrol/Styrol-Acrylnitril-Copolymerisat), ABS/PC (Acrylnitril-Butadien-Styrol/Polycarbonat) und/oder ASA/PC (Acrylnitril-Styrol-Acrylester/Polycarbonat) umfassen, können mittels eines Verbindungselementes, welches ABS umfasst, zu einem Verbund zusammengefügt werden. Es lassen sich somit auch Kunststoffe verbinden, die miteinander nicht verschweißbar sind, wie beispielsweise PS mit PMMA, SAN mit PA, PVC mit PC und viele weitere Werkstoffkombinationen.fasteners Made of ABS are suitable, with a variety of different thermoplastic materials merge and between these to make a connection. In particular, components which PS (polystyrene), SAN (styrene-acrylonitrile copolymer), PMMA (polymethyl methacrylate), PVC (polyvinyl chloride), PC (polycarbonate), ABS (acrylonitrile-butadiene-styrene), PPE (modified polyether), PPE / PA (Modified Polyether / Polyamide), PPE / PS (Modified Polyether / Polystyrene), PPE / PS / SAN (modified polyether / polystyrene / styrene-acrylonitrile copolymer), ABS / PC (acrylonitrile-butadiene-styrene / polycarbonate) and / or ASA / PC (Acrylonitrile-styrene-Acrylester / polycarbonate) may include by means of a connecting element, which comprises ABS, to a Composite joined together become. It can thus also connect plastics that together not weldable such as PS with PMMA, SAN with PA, PVC with PC and many more material combinations.

Weitere geeignete Verbindungselemente umfassen SAN (Styrol-Acrylnitril-Copolymerisat), welches sich mit PS (Polystyrol), PMMA (Polymethylmethacrylat), ABS (Acrylnitril-Butadien-Styrol) und SAN (Styrol-Acrylnitril-Copolymerisat) gut verschweißen lässt und somit einen haltbaren Verbund zwischen Bauteilen, welche diese Kunststoffe umfassen, ermöglicht.Further suitable fasteners include SAN (styrene-acrylonitrile copolymer), which with PS (polystyrene), PMMA (polymethyl methacrylate), ABS (acrylonitrile-butadiene-styrene) and SAN (styrene-acrylonitrile copolymer) well welded and thus a durable bond between components, which these plastics include, allows.

Ebenfalls geeignet sind Verbindungselemente, welche PMMA (Polymethylmethacrylat) umfassen, welches sich mit PMMA (Polymethylmethacrylat), PC (Polycarbonat), ABS (Acrylnitril-Butadien-Styrol) und PPE/PA (Modifizierte Polyether/Polyamid) gut verschweißen lässt und somit einen haltbaren Verbund zwischen Bauteilen, welche diese Kunststoffe umfassen, ermöglicht.Also suitable are fasteners which PMMA (polymethyl methacrylate) comprising PMMA (polymethyl methacrylate), PC (polycarbonate), ABS (acrylonitrile-butadiene-styrene) and PPE / PA (modified polyether / polyamide) weld well lets and thus a durable bond between components, which these plastics include, allows.

Zum Recycling der verbundenen Bauteile kann das Verbundelement, insbesondere mittels des elektrischen Heizdrahtes durch Stromzufuhr, erneut erwärmt werden und die verbundenen Bauteile aus unterschiedlichen Kunststoffe können entlang der sich bildenden Schmelzzone sortenrein getrennt werden.To the Recycling of the connected components, the composite element, in particular be heated by means of the electric heating wire by power supply again and the connected components of different plastics can along the forming melting zone are sorted separated.

Die Erfindung wird im weiteren an Hand von Ausführungsbeispielen näher erläutert.The The invention will be explained in more detail with reference to exemplary embodiments.

Eine Displayabdeckung aus ABS/PC soll mit einem Displayträger aus PS verbunden werden. In den Rahmenabschnitt des Displayträgers wird ein Folienstreifen aus ABS mit eingebettetem Heizdraht umlaufend eingelegt und die Displayabdeckung auf dem Displayträger positioniert, wobei der Folienstreifen zwischen den zu verbindenden Regionen von Displayträger und Displayabdeckung liegt. Durch Stromzufuhr erhitzt der Heizdraht die Folie und die zu verbindenden Regionen des Displayträgers und der Displayabdeckung auf eine Temperatur von ca. 260 °C, bei welcher die Kunststoffe schmelzen. Die Folie aus ABS wird dabei mit dem Displayträger aus PS und der Displayabdeckung aus ABS/PS verschweißt, wobei nach Abkühlung der Kunststoffe eine feste Verbindung zwischen dem Displayträger und der Displayabdeckung entstanden ist.A Display cover made of ABS / PC is designed with a display support PS be connected. In the frame section of the display carrier is a film strip of ABS with embedded heating wire inserted all around and the display cover is positioned on the display carrier, with the Film strips between the regions to be connected by display carrier and Display cover is located. Power supply heats the heating wire the film and the regions of the display carrier and to be connected the display cover to a temperature of about 260 ° C, at which the plastics melt. The film of ABS is doing with the display support made of PS and the display cover made of ABS / PS welded, where after cooling the plastics a firm connection between the display carrier and the display cover is created.

Analog zu dem vorgenannten Beispiel lässt sich ebenfalls eine Verbindung zwischen Gehäusen aus PMMA oder PVC und einer Kunststoffverglasung aus PC für Leuchtengehäuse herstellen.Analogous to the above example also a connection between housings of PMMA or PVC and a plastic glazing made of PC for luminaire housing.

Es sind noch eine Vielzahl weiterer Materialkombinationen und Verbundbauteile möglich, die auf Grund ihrer Vielfalt nicht im Einzelnen und erschöpfend aufgezählt werden können.It are still a variety of other material combinations and composite components possible, which, because of their diversity, are not listed in detail and exhaustively can.

Claims (23)

Verfahren zum Verbinden von Bauteilen aus thermoplastischen Kunststoffen, welches zumindest die folgenden Schritte umfasst: – Bereitstellen der zu verbindenden Bauteile, welche zumindest einen Kunststoff aus der Gruppe der Polyolefine, der Gruppe der Styrolpolymere, der Gruppe der Polyacrylate, der Gruppe der Polyvenylchloride, der Gruppe der Polyamide, der Gruppe der Celluloseester, der Gruppe der Polyacetale, der Gruppe der linearen Polyester oder der Gruppe der Polycarbonate umfassen, – Anordnen eines Verbindungselementes aus einem thermoplastischen Kunststoff, welcher sich durch Schweißen mit den zu verbindenden Bauteilen verbinden lässt, zwischen und/oder um die zu verbindenden Regionen der Bauteile und – Verschweißen des Verbindungselementes mit den zu verbindenden Bauteilen.Method for joining components made of thermoplastics, comprising at least the following steps: - providing the components to be joined, which comprises at least one plastic from the group of polyolefins, the group of styrene polymers, the group of polyacrylates, the group of polyvinyl chlorides, the group polyamides, a group of cellulose esters, a group of polyacetals, a group of linear poly ester or the group of polycarbonates, - arranging a connecting element of a thermoplastic material, which can be connected by welding to the components to be joined, between and / or around the regions of the components to be joined and - welding the connecting element with the components to be joined , Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass Bauteile aus gleichen Kunststoffen bereitgestellt werden.Method according to claim 1, characterized in that that components made of the same plastics are provided. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass Bauteile aus unterschiedlichen Kunststoffen bereitgestellt werden.Method according to claim 1, characterized in that that components made of different plastics provided become. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Verbindungselement und die zu verbindenden Regionen der Bauteile mittels eines im Verbindungselement und/oder am Verbindungselement befindlichen Heizelementes auf eine Schweißtemperatur erwärmt wird, wobei dieses mit den zu verbindenden Bauteilen verschweißt wird.Method according to one of the preceding claims, characterized characterized in that the connecting element and the to be connected Regions of the components by means of a in the connecting element and / or on Connecting element heating element to a welding temperature heated is, where this is welded to the components to be joined. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Verbindungselement aus einer Kunststofffolie zwischen den zu verbindenden Bauteilen angeordnet wird.Method according to one of the preceding claims, characterized characterized in that a connecting element made of a plastic film is arranged between the components to be connected. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Verbindungselement, welches ABS (Acrylnitril-Butadien-Styrol) umfasst, zwischen den zu verbindenden Bauteilen angeordnet wird.Method according to one of the preceding claims, characterized characterized in that a connecting element which is ABS (acrylonitrile-butadiene-styrene) comprises, is arranged between the components to be joined. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass zu verbindende Bauteile, welche PS (Polystyrol), SAN (Styrol-Acrylnitril- Copolymerisat), PMMA (Polymethylmethacrylat), PVC (Polyvenylchlorid), PC (Polycarbonat), ABS (Acrylnitril-Butadien-Styrol), PPE (Modifizierte Polyether), PPE/PA (Modifizierte Polyether/Polyamid), PPE/PS (Modifizierte Polyether/Polystyrol), PPE/PS/SAN (Modifizierte Polyether/Polystyrol/Styrol-Acrylnitril-Copolymerisat), ABS/PC (Acrylnitril-Butadien-Styrol/Polycarbonat) und/oder ASA/PC (Acrylnitril-Styrol-Acrylester/Polycarbonat) umfassen, bereitgestellt werden.Method according to Claim 6, characterized that the components to be connected, which PS (polystyrene), SAN (styrene-acrylonitrile) Copolymer), PMMA (polymethyl methacrylate), PVC (polyvinylchloride), PC (polycarbonate), ABS (acrylonitrile-butadiene-styrene), PPE (modified Polyether), PPE / PA (modified polyether / polyamide), PPE / PS (modified Polyether / polystyrene), PPE / PS / SAN (modified polyether / polystyrene / styrene-acrylonitrile copolymer), ABS / PC (acrylonitrile-butadiene-styrene / polycarbonate) and / or ASA / PC (acrylonitrile-styrene-acrylic ester / polycarbonate) to be provided. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass ein Verbindungselement, welches SAN (Styrol-Acrylnitril-Copolymerisat) umfasst, zwischen den zu verbindenden Bauteilen angeordnet wird.Method according to one of claims 1 to 5, characterized that a connecting element which SAN (styrene-acrylonitrile copolymer) comprises, is arranged between the components to be joined. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass zu verbindende Bauteile, welche PS (Polystyrol), PMMA (Polymethylmethacrylat, ABS (Acrylnitril-Butadien-Styrol) und/oder SAN (Styrol-Acrylnitril- Copolymerisat) umfassen, bereitgestellt werden.Method according to claim 8, characterized in that the components to be joined, which are PS (polystyrene), PMMA (polymethyl methacrylate, ABS (acrylonitrile-butadiene-styrene) and / or SAN (styrene-acrylonitrile copolymer) become. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass ein Verbindungselement, welches PMMA (Polymethylmethacrylat) umfasst, zwischen den zu verbindenden Bauteilen angeordnet wird.Method according to one of claims 1 to 5, characterized that a connecting element which PMMA (polymethyl methacrylate) comprises, is arranged between the components to be joined. Verfahren nach Anspruch 10, dadurch gekennzeichnet, dass zu verbindende Bauteile, welche PMMA (Polymethylmethacrylat), PC (Polycarbonat), ABS (Acrylnitril-Butadien-Styrol) und PPE/PA (Modifizierte Polyether/Polyamid) umfassen, bereitgestellt werden.Method according to claim 10, characterized in that the components to be connected, which PMMA (polymethyl methacrylate), PC (polycarbonate), ABS (acrylonitrile-butadiene-styrene) and PPE / PA (Modified polyether / polyamide). Verbund von Bauteilen aus Kunststoffen, welcher zumindest die zu verbindenden Bauteile, welche Kunststoffe aus der Gruppe der Polyolefine, der Gruppe der Styrolpolymere, der Gruppe der Polyacrylate, der Gruppe der Polyvenylchloride, der Gruppe der Polyamide, der Gruppe der Celluloseester, der Gruppe der Polyacetale, der Gruppe der linearen Polyester und/oder der Gruppe der Polycarbonate umfassen, und ein zwischen den zu verbindenden Bauteilen angeordnetes und mit diesen verschweißtes Verbindungselement aus einem Kunststoff umfasst.Composite of components made of plastics, which at least the components to be joined, which are plastics from the Group of polyolefins, group of styrenic polymers, group the polyacrylates, the group of polyvinyl chlorides, the group of Polyamides, the group of cellulose esters, the group of polyacetals, the group of linear polyesters and / or the group of polycarbonates include, and arranged between the components to be connected and welded with these Includes connecting element of a plastic. Verbund nach Anspruch 12, dadurch gekennzeichnet, dass die zu verbindenden Bauteile die gleichen Kunststoffe umfassen.Composite according to claim 12, characterized in that that the components to be joined comprise the same plastics. Verbund nach Anspruch 12, dadurch gekennzeichnet, dass die zu verbindenden Bauteile unterschiedliche Kunststoffe umfassen.Composite according to claim 12, characterized in that that the components to be joined comprise different plastics. Verbund nach einem der Ansprüche 12 bis 14, dadurch gekennzeichnet, dass sich im und/oder auf dem Verbindungselement ein Heizelement befindet.Composite according to one of claims 12 to 14, characterized in that in and / or on the connecting element is a heating element. Verbund nach Anspruch 15, dadurch gekennzeichnet, dass das Heizelement ein elektrisch leitfähiger Draht ist.Composite according to claim 15, characterized in that the heating element is an electrically conductive wire. Verbund nach einem der Ansprüche 12 bis 16, dadurch gekennzeichnet, dass das Verbindungselement eine Kunststofffolie umfasst.Composite according to one of Claims 12 to 16, characterized that the connecting element comprises a plastic film. Verbund nach einem der Ansprüche 12 bis 17, dadurch gekennzeichnet, dass das Verbindungselement einen Kunststoff aus ABS (Acrylnitril-Butadien-Styrol) umfasst.Composite according to one of claims 12 to 17, characterized that the connecting element is a plastic made of ABS (acrylonitrile-butadiene-styrene) includes. Verbund nach Anspruch 18, dadurch gekennzeichnet, dass die zu verbindenden Bauteile zumindest einen Kunststoff aus PS (Polystyrol), SAN (Styrol-Acrylnitril-Copolymerisat), PMMA (Polymethylmethacrylat), PVC (Polyvenylchlorid), PC (Polycarbonat), ABS (Acrylnitril-Butadien-Styrol), PPE (Modifizierte Polyether), PPE/PA (Modifizierte Polyether/Polyamid), PPE/PS (Modifizierte Polyether/Polystyrol), PPE/PS/SAN (Modifizierte Polyether/Polystyrol/Styrol-Acrylnitril-Copolymerisat), ABS/PC (Acrylnitril-Butadien-Styrol/Polycarbonat) und/oder ASA/PC (Acrylnitril-Styrol-Acrylester/Polycarbonat) umfassen.Composite according to claim 18, characterized that the components to be connected at least one plastic PS (polystyrene), SAN (styrene-acrylonitrile copolymer), PMMA (polymethyl methacrylate), PVC (Polyvinyl chloride), PC (polycarbonate), ABS (acrylonitrile-butadiene-styrene), PPE (Modified Polyether), PPE / PA (Modified Polyether / Polyamide), PPE / PS (Modified Polyether / Polystyrene), PPE / PS / SAN (Modified Polyether / polystyrene / styrene-acrylonitrile copolymer) ABS / PC (acrylonitrile-butadiene-styrene / polycarbonate) and / or ASA / PC (Acrylonitrile-styrene-acrylic ester / polycarbonate). Verbund nach einem der Ansprüche 12 bis 17, dadurch gekennzeichnet, dass das Verbindungselement einen Kunststoff aus SAN (Styrol-Acrylnitril-Copolymerisat) umfasst.Composite according to one of claims 12 to 17, characterized that the connecting element comprises a plastic made of SAN (styrene-acrylonitrile copolymer). Verbund nach Anspruch 20, dadurch gekennzeichnet, dass die zu verbindenden Bauteile zumindest einen Kunststoff aus PS (Polystyrol), PMMA (Polymethylmethacrylat), ABS (Acrylnitril-Butadien-Styrol) und/oder SAN (Styrol-Acrylnitril- Copolymerisat) umfassen.Composite according to claim 20, characterized in that that the components to be connected at least one plastic PS (polystyrene), PMMA (polymethyl methacrylate), ABS (acrylonitrile-butadiene-styrene) and / or SAN (styrene-acrylonitrile) Copolymer). Verbund nach einem der Ansprüche 12 bis 17, dadurch gekennzeichnet, dass das Verbindungselement einen Kunststoff aus PMMA (Polymethylmethacrylat) umfasst.Composite according to one of claims 12 to 17, characterized that the connecting element is a plastic made of PMMA (polymethyl methacrylate) includes. Verbund nach Anspruch 22, dadurch gekennzeichnet, dass die zu verbindenden Bauteile zumindest einen Kunststoff aus PMMA (Polymethylmethacrylat), PC (Polycarbonat), ABS (Acrylnitril-Butadien-Styrol) und/oder PPE/PA (Modifizierte Polyether/Polyamid) umfassen.Composite according to claim 22, characterized that the components to be connected at least one plastic PMMA (polymethyl methacrylate), PC (polycarbonate), ABS (acrylonitrile-butadiene-styrene) and / or PPE / PA (Modified Polyether / Polyamide).
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