DE10019163A1 - Gas outlet ring, for welding plastic components together in particular half shells of a vehicle tank, comprises a frame with outlets on the sides for directing hot gas jets onto the welding surfaces of the components to be joined - Google Patents

Gas outlet ring, for welding plastic components together in particular half shells of a vehicle tank, comprises a frame with outlets on the sides for directing hot gas jets onto the welding surfaces of the components to be joined

Info

Publication number
DE10019163A1
DE10019163A1 DE2000119163 DE10019163A DE10019163A1 DE 10019163 A1 DE10019163 A1 DE 10019163A1 DE 2000119163 DE2000119163 DE 2000119163 DE 10019163 A DE10019163 A DE 10019163A DE 10019163 A1 DE10019163 A1 DE 10019163A1
Authority
DE
Germany
Prior art keywords
outflow
hot gas
plastic parts
frame
joining surfaces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE2000119163
Other languages
German (de)
Inventor
Holger Derzapf
Jens Jaworski
Alexander Siebeneich
Peter Warncke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Priority to DE2000119163 priority Critical patent/DE10019163A1/en
Publication of DE10019163A1 publication Critical patent/DE10019163A1/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • 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
    • B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
    • B29C65/103—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined direct heating both surfaces 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/841—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • 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
    • B29C66/737—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 state of the material of the parts to be joined
    • B29C66/7375—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 state of the material of the parts to be joined uncured, partially cured or fully cured
    • B29C66/73755—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 state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being fully cured, i.e. fully cross-linked, fully vulcanized
    • B29C66/73756—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 state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being fully cured, i.e. fully cross-linked, fully vulcanized the to-be-joined areas of both parts to be joined being fully cured
    • 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
    • B29C66/7394—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 thermoset
    • B29C66/73941—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 thermoset characterised by the materials of both parts being thermosets
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/03177—Fuel tanks made of non-metallic material, e.g. plastics, or of a combination of non-metallic and metallic material

Abstract

A gas outlet ring (10) comprises a frame (21) with outlets (34) on the upper (22) and lower (24) sides for directing hot gas jets onto welding surfaces (16, 18) of components (12, 14) to be joined together. Independent claims are also included for: (a) the hot air gas welding of plastic components in which hot gas is directed from outlets in the frame to melt the surfaces to be joined. The frame is then swung away and the joint faces pressed together until the plastic freezes; (b) the use of the gas outlet ring and/or process for bonding plastic parts in materials which have a tendency to adhere to heating elements and/or tend to form filaments on contact.

Description

Die Erfindung betrifft eine Ausströmvorrichtung zum Warmgas-Verschweißen von wenigstens zwei Kunststoffteilen mit den im Oberbegriff des Anspruchs 1 genannten Merkmalen sowie ein Verfahren zum Warmgas-Verschweißen mit den im Oberbegriff des Anspruchs 6 genannten Merkmalen. Ferner betrifft die Erfindung die Verwendung der Ausströmvorrichtung und des Verfahrens nach den in den Oberbegriffen der Ansprüche 11 und 12 genannten Merkmalen.The invention relates to an outflow device for hot gas welding of at least two plastic parts with those mentioned in the preamble of claim 1 Features and a method for hot gas welding with the in the preamble of Claim 6 mentioned features. Furthermore, the invention relates to the use of Outflow device and the method according to the in the preambles of claims 11 and 12 features mentioned.

Es ist bekannt, Kunststoffteile mittels einer geeigneten Ausströmvorrichtung miteinander zu verschweißen. Über die Ausströmvorrichtung wird ein Warmgasstrahl einem Fügebereich der Kunststoffteile zugeführt. Hierbei werden die Oberflächen auf eine Temperatur oberhalb einer Schmelztemperatur aufgeheizt und unter Druck zusammengefügt, so dass eine möglichst homogene Verbindung entsteht. In der Regel lassen sich nur Thermoplaste und Thermoelaste verschweißen, da Duroplaste und vernetzte Elastomere nicht so aufschmelzbar sind, dass sie fließfähig werden. Artfremde Kunststoffe lassen sich nur miteinander verschweißen, wenn eine chemische Mindestkompatibilität vorliegt und die Schmelztemperaturen nicht allzu weit auseinander liegen (Mischmaterial-Schweißen). Eine Bewertung derartiger Schweißverbindungen muss sowohl eine Dichtheit als auch eine Festigkeit einschließen. Die Güte einer Schweißnaht wird dabei unter anderem auch durch die Material- und Verarbeitungsqualität (Schädigung, Kristallisation, Orientierung und so weiter) des Grundmaterials beeinflusst.It is known to plastic parts together by means of a suitable outflow device weld. A hot gas jet is applied to a joining area via the outflow device the plastic parts fed. Here, the surfaces are brought to a temperature above heated to a melting temperature and assembled under pressure so that a the most homogeneous connection possible. As a rule, only thermoplastics and Welding thermoelastes because thermosets and cross-linked elastomers do not are meltable so that they become fluid. Foreign plastics can only be weld together if there is a minimum chemical compatibility and the Melting temperatures are not too far apart (mixed material welding). A Assessment of such welded joints must have both a tightness and a Include firmness. The quality of a weld seam is also determined by, among other things the material and processing quality (damage, crystallization, orientation and so on further) of the basic material.

Beim Warmgas-Schweißen werden die zu verschweißenden Flächen (Fügeflächen) und ein Zusatzdraht mit erwärmter Luft von 80 bis 500°C aufgeschmolzen. Derartige Verfahren sind in erster Linie manuelle Verfahren, die bei abnahmepflichtigen Bauteilen geschultes und überprüftes Personal erfordern. Als wesentliche Methoden seien hier genannt das Fächelschweißen, Warmgaszieh-Schweißen und das Extrusions-Schweißen. Den genannten Methoden ist gemeinsam, dass ein Warmgasstrahl von Hand zugeführt werden muss sowie das Volumen der Schweißnaht im Wesentlichen durch einen Zusatzdraht oder durch eine Überlappung (Überlappschweißen) zur Verfügung gestellt wird. Eine industrielle Anwendung des Warmgas-Schweißens erfordert jedoch eine Automatisierung der Fertigung. With hot gas welding, the surfaces to be welded (joining surfaces) and a Additional wire melted with heated air from 80 to 500 ° C. Such procedures are primarily manual procedures, which are trained and approved for components subject to approval require verified personnel. These are the main methods Fan welding, hot gas welding and extrusion welding. The The methods mentioned have in common that a warm gas jet is fed by hand as well as the volume of the weld seam essentially by means of an additional wire or is provided by an overlap (lap welding). An industrial one However, using hot gas welding requires automation of the production.  

Eine solche Anforderung besteht beispielsweise bei einer Fertigung eines Fahrzeugtankes aus zwei Kunststoffhalbschalen. Im bisherigen Verfahren werden die Fügeflächen durch direkten Kontakt mit einem Heizelement angeschmolzen und unter Druck aneinander gelegt, bis die Kunststoffmasse wieder erstarrt ist. Nachteilig hieran ist, dass sich auf den Kontaktflächen der Heizelemente Rückstände ansammeln, die die Güte der Schweißnaht negativ beeinflussen.Such a requirement exists, for example, in the manufacture of a vehicle tank from two plastic half shells. In the previous procedure, the joining surfaces are direct contact with a heating element melted and placed together under pressure, until the plastic mass has solidified again. The disadvantage of this is that the Contact surfaces of the heating elements accumulate residues that affect the quality of the weld influence negatively.

Der Erfindung liegt daher die Aufgabe zugrunde, ein kontaktfreies Warmgas- Schweißverfahren zur Verfügung zu stellen, das in einfacher Weise automatisierbar ist. Die hierzu notwendige Vorrichtung soll in einem hohen Maße flexibel den jeweiligen Notwendigkeiten angepasst werden können. Insbesondere soll durch das Verfahren und die Vorrichtung die Fertigung von Fahrzeugtanks auf Basis von Kunststoffhalbschalen verbessert werden.The invention is therefore based on the object of providing a contact-free hot gas To provide welding processes that can be automated easily. The the device required for this purpose should be flexible to the respective extent Necessities can be adjusted. In particular, the method and the Device for the production of vehicle tanks based on plastic half-shells be improved.

Erfindungsgemäß wird diese Aufgabe durch eine Ausströmvorrichtung zum Warmgas- Verschweißen von zumindest zwei Kunststoffteilen mit den im Anspruch 1 genannten Merkmalen sowie durch das dazugehörige Verfahren nach den im Anspruch 6 genannten Merkmalen gelöst. Nach dem Verfahren wird
According to the invention, this object is achieved by an outflow device for hot gas welding of at least two plastic parts with the features mentioned in claim 1 and by the associated method according to the features mentioned in claim 6. After the procedure

  • a) ein Ausströmrahmen zwischen den Fügeflächen der Kunststoffteile angeordnet;a) an outflow frame is arranged between the joining surfaces of the plastic parts;
  • b) über an einer Ober- und Unterseite des Ausströmrahmens vorgesehene Ausströmöffnungen ein Warmgasstrahl auf die Fügeflächen der Kunststoffteile geleitet, bis der Kunststoff in diesem Bereich angeschmolzen ist,b) provided on an upper and lower side of the outflow frame A hot gas jet exits the joining surfaces of the plastic parts passed until the plastic has melted in this area,
  • c) der Ausströmrahmen aus dem Bereich der Fügeflächen geschwenkt undc) the outflow frame is pivoted out of the area of the joining surfaces and
  • d) anschließend die Kunststoffteile an den Fügeflächen in Kontakt gebracht und zumindest solange in Kontakt gehalten, bis der Kunststoff weitestgehend wieder erstarrt ist.d) then brought the plastic parts on the joining surfaces into contact and at least kept in contact until the plastic largely again is frozen.

Damit ist es erstmalig möglich, das kontaktfreie Warmgas-Verschweißen von Kunststoffteilen im industriellen Rahmen durchzuführen.It is the first time that contact-free hot gas welding of Perform plastic parts in an industrial setting.

Die Ausströmvorrichtung, mittels der der Warmgasstrahl auf die Fügeflächen der Kunststoffteile geleitet wird, zeichnet sich dadurch aus, dass sie einen Ausströmrahmen umfasst, an dessen Ober- und Unterseite Ausströmöffnungen vorgesehen sind, die den Warmgasstrahl auf die Fügeflächen der Kunststoffteile leiten. Mit an sich bekannten Bewegungselementen lässt sich der Ausströmrahmen während des Schweißvorganges in und aus dem Bereich der Fügeflächen der Kunststoffteile schwenken. Dieser Vorgang ist dann mit einer Automatisierung zugänglich.The outflow device, by means of which the hot gas jet onto the joining surfaces of the Plastic parts is guided, is characterized in that it has an outflow frame comprises, on the top and bottom discharge openings are provided which the  Guide the hot gas jet onto the joint surfaces of the plastic parts. With known ones The outflow frame can be moved in motion elements during the welding process and swivel out of the area of the joining surfaces of the plastic parts. This process is then accessible with automation.

Vorzugsweise ist eine Geometrie des Ausströmrahmens derart gewählt, dass sie einer Kontur der Fügeflächen der Kunststoffteile folgt. Auf diese Weise ist eine Einstellung homogener Schmelzbedingungen an den Fügeflächen besonders einfach möglich. Um eine möglichst hohe Flexibilität in der Form des Ausströmrahmens zu ermöglichen, kann dieser vorzugsweise aus modular zusammensetzbaren Teilsegmenten bestehen. Die Teilsegmente können dann entsprechend den Konturen der miteinander zu verschweißenden Kunststoffteile zusammengesetzt werden.A geometry of the outflow frame is preferably selected such that it is one Contour of the joining surfaces of the plastic parts follows. This is an attitude homogeneous melting conditions on the joining surfaces particularly easy. To one To allow the highest possible flexibility in the shape of the outflow frame, this can preferably consist of modular segments. The sub-segments can then according to the contours of the welded together Plastic parts are put together.

Nach einer bevorzugten Ausgestaltung des Verfahrens wird ein Abstand zwischen den Kunststoffteilen und dem Ausströmrahmen in Abhängigkeit von der Schmelztemperatur der Kunststoffe, einem Strömungsprofi des Warmgasstrahls, einer gewünschten Stärke eines Schweißwulstes und einer Warmgastemperatur bestimmt. Der Abstand muss in jedem Fall individuell ermittelt werden.According to a preferred embodiment of the method, a distance between the Plastic parts and the outflow frame depending on the melting temperature of the Plastics, a flow professional of the warm gas jet, a desired strength of one Sweat bead and a warm gas temperature determined. The distance must in any case can be determined individually.

Nach einer weiteren bevorzugten Ausgestaltung des Verfahrens wird das Strömungsprofil so beeinflusst, das eine Anströmfläche des Warmgasstrahls weitestgehend im Bereich der Fügeflächen der Kunststoffteile liegt und/oder das Strömungsprofil im Bereich der Fügeflächen weitestgehend homogen ist. Auf diese Weise wird eine lediglich punktuelle und gleichmäßige Erwärmung in den Bereichen, die die spätere Schweißnaht bilden sollen, erreicht. Dabei kann das Strömungsprofil des Warmgasstrahls zum einen durch eine Änderung seines Volumenstromes beeinflusst werden. Zum anderen kann das Strömungsprofil durch geeignete Wahl einer Geometrie der Ausströmöffnungen verändert werden. Die Ausströmöffnungen sind dann beispielsweise derart ausgestaltet, dass in etwa kegelförmige Warmgasstrahlen benachbarter Austrittsöffnungen zumindest unmittelbar im Bereich der Fügeflächen überlappen.According to a further preferred embodiment of the method, the flow profile is like this influenced that an inflow surface of the hot gas jet largely in the area of Joining surfaces of the plastic parts and / or the flow profile in the area of Joining surfaces is largely homogeneous. In this way, only a selective and uniform heating in the areas that are to form the subsequent weld seam, reached. The flow profile of the hot gas jet can on the one hand by a Change in its volume flow can be influenced. On the other hand, it can Flow profile changed by suitable choice of a geometry of the outflow openings become. The outflow openings are then configured, for example, in such a way that approximately conical warm gas jets from adjacent outlet openings at least immediately in the Overlap the area of the joining surfaces.

Als besonders vorteilhaft hat es sich erwiesen, das erfindungsgemäße Verfahren und die erfindungsgemäße Ausströmvorrichtung zur Fertigung von Fahrzeugtanks auf Basis zweier Kunststoffhalbschalen zu verwenden. Ebenso lassen sich weitere Anbauteile an derartige Halbschalen mit dem aufgezeigten Verfahren beziehungsweise der aufgezeigten Vorrichtung befestigen. Weiterhin ist die Verwendung der Vorrichtung und des Verfahrens an Kunststoffteilen, die aus einem Material sind, welches zum Kleben an Heizelementen und/oder zum starken Fädenziehen neigt, prädestiniert.It has proven particularly advantageous to use the method according to the invention and the Outflow device according to the invention for the production of vehicle tanks based on two Use plastic half shells. Likewise, other attachments to such Half shells with the method shown or the device shown fasten. Furthermore, the use of the device and the method is on  Plastic parts that are made of a material that is to be glued to heating elements and / or prone to strong threading, predestined.

Weitere bevorzugte Ausgestaltungen der Erfindung ergeben sich aus den übrigen, in den Unteransprüchen genannten Merkmalen.Further preferred refinements of the invention result from the others in the Characteristics mentioned subclaims.

Die Erfindung wird nachfolgend in einem Ausführungsbeispielen anhand der zugehörigen Zeichnung, die schematisch einen Teil einer Ausströmvorrichtung zeigt, näher erläutert.The invention is described in an exemplary embodiment based on the associated Drawing, which schematically shows part of an outflow device, explained in more detail.

Die einzige Figur zeigt eine Ausströmvorrichtung 10, als Teilelement einer Vorrichtung, die zum Warmgas-Verschweißen von Kunststoffteilen dient. Im nachfolgend geschilderten Verfahren werden zwei Kunststoffteile - nämlich die Kunststoffhalbschalen 12, 14 - dauerhaft an ihren Fügeflächen 16, 18 miteinander verbunden. Auf die Darstellung weiterer Komponenten der Vorrichtung, die eine Automatisierung der aufgezeigten Fügetechnik erlauben, ist aus Gründen der Übersichtlichkeit verzichtet worden. Diese Komponenten umfassen unter anderem Elemente zur Warmgaserzeugung, zum Transport und zum Handling der Kunststoffteile. Ferner können Bewegungselemente vorgesehen sein, mit denen einerseits die Halbschalen 12, 14 und andererseits die Ausströmvorrichtung 10 relativ zueinander bewegt werden können. Weiterhin sind Elemente üblich, mit denen die Halbschalen 12, 14 während des Fertigungsprozesses arretiert werden können. Beispielhaft hierzu ist eine Teilaufnahme 20 für die Halbschale 14 angedeutet.The single figure shows an outflow device 10 , as a sub-element of a device which is used for hot gas welding of plastic parts. In the method described below, two plastic parts - namely the plastic half-shells 12 , 14 - are permanently connected to one another at their joining surfaces 16 , 18 . For the sake of clarity, further components of the device, which allow automation of the joining technology shown, have not been shown. These components include elements for hot gas generation, transport and handling of the plastic parts. Furthermore, movement elements can be provided with which the half-shells 12 , 14 and on the other hand the outflow device 10 can be moved relative to one another. Furthermore, elements are customary with which the half-shells 12 , 14 can be locked during the manufacturing process. A partial receptacle 20 for the half-shell 14 is indicated as an example.

Die beiden Halbschalen 12, 14 bestehen aus einem thermoplastischen Kunststoff, insbesondere auf Basis eines Polyketons. Sie müssen dabei nicht notwendigerweise aus dem selben Material geformt sein. Zur Durchführung des Warmgas-Verschweißens müssen zumindest die Schmelztemperaturen der beiden Komponenten bekannt sein. Selbstverständlich darf die Temperatur nicht die für jeden Werkstoff individuell zu beachtenden Zersetzungstemperaturen übersteigen.The two half-shells 12 , 14 consist of a thermoplastic, in particular based on a polyketone. They do not necessarily have to be made of the same material. To carry out hot gas welding, at least the melting temperatures of the two components must be known. Of course, the temperature must not exceed the decomposition temperatures to be observed individually for each material.

Zunächst wird ein Ausströmrahmen 21 als Teil der Ausströmvorrichtung 10 zwischen den Fügeflächen 16, 18 der Halbschalen 14, 16 angeordnet. Dabei sollte nach Möglichkeit der Abstand einer Oberseite 22 des Ausströmrahmens 21 zur Fügefläche 16 der Halbschale 12 weitestgehend konstant sein. Das Gleiche gilt für den Abstand einer Unterseite 24 des Ausströmrahmens 21 zur Fügefläche 18 der unteren Halbschale 14. Hierdurch soll ein möglichst homogenes Aufschmelzen der Fügeflächen 16, 18 während des Verfahrens ermöglicht werden. Gegebenenfalls muss daher eine Geometrie des Ausströmrahmens 21 einer Kontur der Fügeflächen 16, 18 angepasst werden. First, an outflow frame 21 as part of the outflow device 10 is arranged between the joining surfaces 16 , 18 of the half-shells 14 , 16 . If possible, the distance between an upper side 22 of the outflow frame 21 and the joining surface 16 of the half-shell 12 should be largely constant. The same applies to the distance between an underside 24 of the outflow frame 21 and the joining surface 18 of the lower half-shell 14 . This is intended to enable the joining surfaces 16 , 18 to be melted as homogeneously as possible during the method. If necessary, a geometry of the outflow frame 21 must therefore be adapted to a contour of the joining surfaces 16 , 18 .

Der Ausströmrahmen 21 besteht aus zwei Teilsegmenten 28, 30. Ein derartiger modularer Aufbau des Ausströmrahmens 21 erlaubt es, das Verfahren flexibel an neue Geometrien der zu fügenden Kunststoffteile anzupassen. Ein hier nicht dargestellter Warmgaserzeuger speist über eine Zuleitung 32 Warmgas in den hohlen Ausströmrahmen 21 ein. Das Warmgas tritt anschließend aus den an der Oberseite 22 beziehungsweise Unterseite 24 angeordneten Ausströmöffnungen 34 aus. Sobald der Kunststoff im Bereich der Fügeflächen 16, 18 angeschmolzen ist, wird die Ausströmvorrichtung 10 durch ein zugeordnetes Bewegelement entfernt und die beiden Halbschalen 12, 14 werden durch weitere Bewegelemente miteinander - gegebenenfalls unter Druck - in Kontakt gebracht. Der Kontakt wird zumindest solange aufrecht erhalten, bis der Kunststoff weitestgehend wieder erstarrt ist und damit eine dauerhafte Verbindung zwischen den Halbschalen 12, 14 hergestellt ist.The outflow frame 21 consists of two sub-segments 28 , 30 . Such a modular construction of the outflow frame 21 allows the method to be flexibly adapted to new geometries of the plastic parts to be joined. A hot gas generator, not shown here, feeds hot gas into the hollow outflow frame 21 via a feed line 32 . The hot gas then emerges from the outflow openings 34 arranged on the upper side 22 or lower side 24 . As soon as the plastic in the region of the joining surfaces 16, 18 is melted, the air vent 10 is removed by an associated Bewegelement and the two half-shells 12, 14 are further Bewegelemente together - brought into contact - optionally under pressure. Contact is maintained at least until the plastic has largely solidified again and a permanent connection between the half-shells 12 , 14 has thus been established.

Ein Abstand zwischen dem Ausströmrahmen 21 und den Fügeflächen 16, 18 während der Aufschmelzphase wird dabei in Abhängigkeit von der Schmelztemperatur der Kunststoffe, einer Warmgastemperatur, einer gewünschten Stärke eines Schweißwulstes und einem Strömungsprofil des Warmgasstrahls bestimmt. Üblicherweise liegt der Abstand in einem Bereich von einigen cm. Wenn die Halbschalen 12, 14 aus verschiedenen Kunststoffen geformt sind, so kann der Abstand auf beiden Seiten des Ausströmrahmens 21 auch unterschiedlich vorgegeben werden, um eine Temperatur beziehungsweise ein Strömungsprofil im Bereich der Fügeflächen 16, 18 zu optimieren.A distance between the outflow frame 21 and the joining surfaces 16 , 18 during the melting phase is determined as a function of the melting temperature of the plastics, a hot gas temperature, a desired thickness of a welding bead and a flow profile of the hot gas jet. The distance is usually in a range of a few cm. If the half-shells 12 , 14 are formed from different plastics, the distance on both sides of the outflow frame 21 can also be predetermined differently in order to optimize a temperature or a flow profile in the area of the joining surfaces 16 , 18 .

Die Ausströmöffnungen 34 sind derart ausgestaltet, dass der austretende Warmgasstrahl im Bereich der Fügeflächen 16, 18 ein weitestgehend homogenes Strömungsprofil aufweist. Zusätzlich kann auf diese Weise auch eine Anströmfläche des Warmgasstrahls weitestgehend auf den Bereich der Fügeflächen 16, 18 beschränkt werden, so dass eine unerwünschte Erwärmung in anderen Bereichen der Halbschalen 12, 14 vermieden wird. Einzelne kegelförmige, aus den Ausströmöffnungen 34 austretende Warmgasstrahlen überlappen also zumindest im Bereich der Fügeflächen 16, 18 weitestgehend. Gegebenenfalls kann durch eine Änderung der Geometrie der Ausströmöffnungen das Strömungsprofil des Warmgasstrahles beeinflusst werden. Alternativ oder in Kombination zu letztgenannter Maßnahme kann das Strömungsprofil auch durch Änderung des eingespeisten Volumenstromes des Warmgases verändert werden. Selbstverständlich können die Geometrien der Ausströmöffnungen 34 an der Ober- beziehungsweise Unterseite 22, 24 des Ausströmrahmens 21 unterschiedlich ausgestaltet werden, wenn sich nur auf diese Weise der gewünschte Abstand beziehungsweise das gewünschte Strömungsprofil einstellen lässt. The outflow openings 34 are designed such that the emerging hot gas jet has a largely homogeneous flow profile in the region of the joining surfaces 16 , 18 . In addition, an inflow surface of the hot gas jet can also be largely restricted in this way to the area of the joining surfaces 16 , 18 , so that undesired heating in other areas of the half-shells 12 , 14 is avoided. Individual conical hot gas jets emerging from the outflow openings 34 thus largely overlap at least in the area of the joining surfaces 16 , 18 . If necessary, the flow profile of the hot gas jet can be influenced by changing the geometry of the outflow openings. Alternatively or in combination with the last-mentioned measure, the flow profile can also be changed by changing the volume flow of the hot gas that is fed in. Of course, the geometries of the outflow openings 34 on the upper or lower side 22 , 24 of the outflow frame 21 can be designed differently if the desired distance or the desired flow profile can only be set in this way.

BEZUGSZEICHENLISTEREFERENCE SIGN LIST

1010th

Ausströmvorrichtung
Outflow device

1212th

, ,

1414

Kunststoffhalbschalen
Plastic half shells

1616

, ,

1818th

Fügeflächen
Joining surfaces

2020th

Teilaufnahme
Partial recording

2121

Ausströmrahmen
Outflow frame

2222

Oberseite
Top

2424th

Unterseite
bottom

2828

, ,

3030th

Teilsegmente
Subsegments

3232

Zuleitung
Supply

3434

Ausströmöffnungen
Outflow openings

Claims (12)

1. Ausströmvorrichtung zum Warmgas-Verschweißen von wenigstens zwei Kunststoffteilen, wobei mittels der Ausströmvorrichtung ein Warmgasstrahl auf eine Fügefläche der Kunststoffteile geleitet wird, dadurch gekennzeichnet, dass die Ausströmvorrichtung (10) einen Ausströmrahmen (21) umfasst, an dessen Ober- und Unterseite (22, 24) Ausströmöffnungen (34) vorgesehen sind, die den Warmgasstrahl auf die Fügeflächen (16, 18) der Kunststoffteile leiten.1. Outflow device for hot gas welding of at least two plastic parts, a hot gas jet being directed onto a joining surface of the plastic parts by means of the outflow device, characterized in that the outflow device ( 10 ) comprises an outflow frame ( 21 ), on the top and bottom side ( 22 , 24 ) outflow openings ( 34 ) are provided which guide the hot gas jet onto the joining surfaces ( 16 , 18 ) of the plastic parts. 2. Ausströmvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass eine Geometrie des Ausströmrahmens (21) einer Kontur der Fügeflächen (16, 18) der Kunststoffteile angepasst ist.2. Outflow device according to claim 1, characterized in that a geometry of the outflow frame ( 21 ) is adapted to a contour of the joining surfaces ( 16 , 18 ) of the plastic parts. 3. Ausströmvorrichtung nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, dass der Ausströmrahmen (21) aus modular zusammensetzbaren Teilsegmenten (28, 30) besteht.3. Outflow device according to claims 1 or 2, characterized in that the outflow frame ( 21 ) consists of modularly assembled sub-segments ( 28 , 30 ). 4. Ausströmvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Ausströmöffnungen (34) derart ausgestaltet sind, dass der Warmgasstrahl im Bereich der Fügeflächen (16, 18) ein weitestgehend homogenes Strömungsprofil aufweist.4. Outflow device according to one of claims 1 to 3, characterized in that the outflow openings ( 34 ) are designed such that the hot gas jet in the area of the joining surfaces ( 16 , 18 ) has a largely homogeneous flow profile. 5. Ausströmvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Ausströmöffnungen (34) derart ausgestaltet sind, dass eine Anströmfläche des Warmgasstrahls weitestgehend im Bereich der Fügeflächen (16, 18) der Kunststoffteile liegt.5. Outflow device according to one of claims 1 to 4, characterized in that the outflow openings ( 34 ) are designed such that an inflow surface of the hot gas jet is largely in the area of the joining surfaces ( 16 , 18 ) of the plastic parts. 6. Verfahren zum Warmgas-Verschweißen von wenigstens zwei Kunststoffteilen, dadurch gekennzeichnet, dass
  • a) ein Ausströmrahmen (21) zwischen den Fügeflächen (16, 18) der Kunststoffteile angeordnet wird,
  • b) über an einer Ober- und Unterseite (22, 24) des Ausströmrahmens (21) vorgesehene Ausströmöffnungen (34) ein Warmgasstrahl auf die Fügeflächen (16, 18) der Kunststoffteile geleitet wird bis der Kunststoff in diesem Bereich angeschmolzen ist,
  • c) der Ausströmrahmen (21) aus dem Bereich der Fügeflächen (16, 18) geschwenkt wird und
  • d) anschließend die Kunststoffteile an den Fügeflächen (16, 18) in Kontakt gebracht werden und zumindest solange in Kontakt gehalten werden bis der Kunststoff weitestgehend wieder erstarrt ist.
6. Process for hot gas welding of at least two plastic parts, characterized in that
  • a) an outflow frame ( 21 ) is arranged between the joining surfaces ( 16 , 18 ) of the plastic parts,
  • b) a hot gas jet is directed onto the joining surfaces ( 16 , 18 ) of the plastic parts via outflow openings ( 34 ) provided on an upper and lower side ( 22 , 24 ) of the outflow frame ( 21 ) until the plastic is melted in this area,
  • c) the outflow frame ( 21 ) is pivoted out of the area of the joining surfaces ( 16 , 18 ) and
  • d) the plastic parts are then brought into contact on the joining surfaces ( 16 , 18 ) and are kept in contact at least until the plastic has largely solidified again.
7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass ein Abstand zwischen den Kunststoffteilen und dem Ausströmrahmen (21) in Abhängigkeit von einer Schmelztemperatur der Kunststoffe, einem Strömungsprofils des Warmgasstrahls einer Stärke eines gewünschten Schweißwulstes und einer Warmgastemperatur bestimmt wird.7. The method according to claim 6, characterized in that a distance between the plastic parts and the outflow frame ( 21 ) is determined as a function of a melting temperature of the plastics, a flow profile of the hot gas jet, a thickness of a desired welding bead and a hot gas temperature. 8. Verfahren nach einem der Ansprüche 6 bis 7, dadurch gekennzeichnet, dass das Strömungsprofil so beeinflusst wird, dass eine Anströmfläche des Warmgasstrahls weitestgehend im Bereich der Fügeflächen (16, 18) der Kunststoffteile liegt und/oder das Strömungsprofil im Bereich der Fügeflächen (16, 18) weitestgehend homogen ist.8. The method according to any one of claims 6 to 7, characterized in that the flow profile is influenced such that an inflow surface of the hot gas jet is largely in the area of the joining surfaces ( 16 , 18 ) of the plastic parts and / or the flow profile in the area of the joining surfaces ( 16 , 18 ) is largely homogeneous. 9. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass das Strömungsprofil des Warmgasstrahls durch Änderung einer Geometrie der Ausströmöffnungen (34) beeinflusst wird.9. The method according to claim 8, characterized in that the flow profile of the hot gas jet is influenced by changing a geometry of the outflow openings ( 34 ). 10. Verfahren nach den Ansprüchen 8 oder 9, dadurch gekennzeichnet, dass das Strömungsprofil des Warmgasstrahls durch Änderung seines Volumenstroms beeinflusst wird.10. The method according to claims 8 or 9, characterized in that the Flow profile of the hot gas jet by changing its volume flow being affected. 11. Verwendung einer Ausströmvorrichtung und/oder des Verfahrens nach einem oder mehreren der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Kunststoffteile zwei Halbschalen (12, 14) eines Fahrzeugtanks und/oder Anbauteile an derartige Halbschalen (12, 14) sind.11. Use of an outflow device and / or the method according to one or more of claims 1 to 10, characterized in that the plastic parts are two half-shells ( 12 , 14 ) of a vehicle tank and / or attachments to such half-shells ( 12 , 14 ). 12. Verwendung einer Ausströmvorrichtung und/oder des Verfahrens nach einem oder mehreren der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Kunststoffteile aus einem Material sind, welches zum Kleben am Heizelement und/oder zum starken Fädenziehen neigt, geformt sind.12. Use of an outflow device and / or the method according to one or several of claims 1 to 10, characterized in that the plastic parts  are made of a material that is to be glued to the heating element and / or strong Stringing tends to be shaped.
DE2000119163 2000-04-12 2000-04-12 Gas outlet ring, for welding plastic components together in particular half shells of a vehicle tank, comprises a frame with outlets on the sides for directing hot gas jets onto the welding surfaces of the components to be joined Withdrawn DE10019163A1 (en)

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WO2004035298A1 (en) * 2002-10-14 2004-04-29 E. On Ruhrgas Ag Heating element for a thermowelding device
EP1415789A1 (en) * 2002-10-31 2004-05-06 Hans Georg Schulz Method for welding plastic parts, in particular for connecting plastic parts along a weld line
DE102006010815A1 (en) * 2006-03-07 2007-09-13 Geiger Technik Gesellschaft mit beschränkter Haftung Thermoplastic housing of pressurized component useful as a reservoir and supply container, exhibits a cavity, which is completely surrounded by openings, wall surfaces lying opposite with one another, and a wall cross-section
EP2153977A3 (en) * 2008-08-11 2011-12-28 ElringKlinger AG Assembly with plastic sections welded together and method for their manufacture
DE102008048793A1 (en) * 2008-09-24 2010-03-25 Mann + Hummel Gmbh Method for manufacturing plastic oil pan of thermoplastic, particularly for internal-combustion engine or gear, involves welding oil pan that is made of multiple individual units at fusion zones
US20110024038A1 (en) * 2009-07-30 2011-02-03 Atsuhiro Mori Resin component welding apparatus and method of welding resin components
WO2011160734A1 (en) * 2010-06-23 2011-12-29 Hummel-Formen Gmbh Method and device for producing a component
WO2012089287A1 (en) * 2010-12-27 2012-07-05 Elringklinger Ag Method and device for producing a component by means of injection moulding and welding
WO2012119952A3 (en) * 2011-03-04 2012-11-08 Elringklinger Ag Method and device for producing a component
EP3778179A1 (en) * 2011-03-04 2021-02-17 ElringKlinger AG Method and device for producing a component
WO2013143837A1 (en) * 2012-03-27 2013-10-03 Huf Hülsbeck & Fürst Gmbh & Co. Kg Method for producing an id transmitter for motor vehicles
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DE102012218655B4 (en) * 2012-10-12 2019-11-28 Iwi Gmbh Device and method for permanently connecting two plastic foam elements
DE102015207056A1 (en) * 2015-04-17 2016-10-20 Bielomatik Leuze Gmbh + Co. Kg Heating device and heating method
DE102018116273A1 (en) 2018-07-05 2020-01-09 Precon Engineering GmbH Device and method for hot gas welding of plastic parts
US20220134676A1 (en) * 2019-02-14 2022-05-05 Basf Se Method for producing a moulded body that encloses a cavity by welding two partial bodies, and die for welding two partial bodies
DE102019130670B4 (en) 2019-11-13 2022-08-18 Precon Engineering GmbH Heating element, device and method for hot gas welding of plastic parts

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8181 Inventor (new situation)

Inventor name: SIEBENEICH, ALEXANDER, 38448 WOLFSBURG, DE

Inventor name: JAWORSKI, JENS, 38477 JEMBKE, DE

Inventor name: DERZAPF, HOLGER, 38477 JEMBKE, DE

Inventor name: WARNCKE, PETER, 38557 OSLOSS, DE

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