DE3422074A1 - Verfahren zur herstellung nicht loesbarer rohrverbindungen von kunststoffrohren - Google Patents

Verfahren zur herstellung nicht loesbarer rohrverbindungen von kunststoffrohren

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Publication number
DE3422074A1
DE3422074A1 DE19843422074 DE3422074A DE3422074A1 DE 3422074 A1 DE3422074 A1 DE 3422074A1 DE 19843422074 DE19843422074 DE 19843422074 DE 3422074 A DE3422074 A DE 3422074A DE 3422074 A1 DE3422074 A1 DE 3422074A1
Authority
DE
Germany
Prior art keywords
pipe
socket
heating wire
welding
producing non
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Withdrawn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
DE19843422074
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English (en)
Inventor
Manfred 6000 Frankfurt Eck
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Priority to DE19843422074 priority Critical patent/DE3422074A1/de
Publication of DE3422074A1 publication Critical patent/DE3422074A1/de
Withdrawn legal-status Critical Current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
    • 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
    • B29C65/3428—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 said at least a single wire having a waveform, e.g. a sinusoidal form
    • 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"
    • B29C65/3468—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 means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings
    • 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
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5057—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like positioned between the 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
    • B29C66/01—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
    • B29C66/116—Single bevelled joints, i.e. one of the parts to be joined being bevelled in the joint area
    • B29C66/1162—Single bevel to bevel joints, e.g. mitre 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
    • B29C66/01—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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • 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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1226—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least one bevelled joint-segment
    • 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
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • 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
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • 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
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
    • 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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • F16L47/03—Welded joints with an electrical resistance incorporated in the joint

Description

  • Beschreibung
  • Verfahren zur Herstellung nicht lösbarer Rohrverbindungen von Kunststoffrohren.
  • Die Erfindung betrifft ein Verfahren zur Herstellung nicht lösbarer Rohrverbindungen, sowie das dazu benötigte heizbare Schweißplättchen.
  • Es sind bereits Verfahren zur Herstellung nicht lösbarer Rohrverbindungen bekannt, insbesondere das Heizelement-Muffenschweißen, sowie ein Verfahren mittels Elektroschweißmuffen.
  • Beim Heizelement-Muffenschweißen werden die Fügeflächen vorbearbeitet, insbesondere die Rohrenden kalibriert, so dann werden Muffe und Rohr auf ein Heizelement aufgesteckt, nach einer entsprechenden Anwärmzeit ruckartig vom Heizelement entfernt und sofort zusammengefügt.
  • Das bekannte Verfahren mittels Elektroschweißmuffe kennzeichnet sich dadurch, daß die Innenseiten der Muffen mit einem Heizdraht ausgestattet sind, die in Anschlußnippeln an der Außenseite der Muffen enden und über diese Nippel an die Stromquelle angschlossen werden.
  • Nach dem Zusammenfügen von kalibriertem Rohr und Elektroschweißmuffe schmilzt durch das Anschließen an die Stromquelle das Innere der Muffe und bewirkt so die Verbindung der beiden Teile.
  • Der Nachteil des Heizelement-Muffenschweißens liegt darin, daß beim Zusammenfügen der erwärmten Teile (Rohr und Muffe) der Druck nicht genau zu berechnen ist und daher bei etwas zu hohem Druck, sich an der Innenseite der Nahtstelle ein Wulst bilden kann, der dem Rohrquerschnitt an der Nahtstelle erheblich vermindert, folglich ein Fließhindernis darstellt.
  • Ein Großteil der Muffenschweißverbindungen müssen per Hand ausgeführt werden und bergen damit die Gefahr in sich, daß die Achse der zu verbindenden Teile unsachlich abgebogen wird.
  • Die Haltbarkeit der Schweißnaht ist dann gefährdet.
  • Ein weiterer wesentlicher Nachteil dieses Verfahrens liegt darin, daß durch die Unhandlichkeit, insbesondere an schwer zugänglichen Stellen, zwei Arbeitskräfte erforderlich sind, den Arbeitsgang durchzuführen. Auch eine Teilvorfertigung an der Werkbank bedingt zwei Arbeitskräfte, da die Teile bizarre Formen annehmen und unhandlich werden. Dies stellt einen erheblichen wirtschaftlichen Nachteil dar.
  • Das Verfahren mittels Elektroschweißmuffe versucht die Nachteile des Heizelement-Muffenschweißens zu verhindern. Die Konstruktion läßt jedoch keinen Fügedruck zu. Da zwischen Rohr und Muffe eine notwendige Toleranz sein muß, ist der Schweißvorgang auf die Zufälligkeit des Zusammenfließens angewiesen. Selbst eine Umkonstruktion könnte der Elektroschweißmuffe keinen Durchbruch bescheren, da für jedes einzelne der Vielzahl von Fittings eine Sondermaschine zur Herstellung notwendig wäre. Deshalb ist auf dem Markt bisher auch lediglich die Durchgangsmuffe bekannt.
  • Sie soll muffengeschweißte Teilvorfertigungen an unzugänglicher Stelle verbinden.
  • Der Erfindung liegt die Aufgabe zugrunde, ein Kunststoffschweißverfahren zu entwickeln, daß alle diese bekannten Nachteile ausschließt.
  • Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Verbindung zwischen Muffe und Rohr nach dem zu schützenden Verfahren hergestellt wird.
  • Das Rohr (2) und die Muffe (1) werden konisch kalibriert.
  • Der Toelranzspalt zwischen Rohr und Muffe wird nach der Stärke des Schweißplättchens bemessen. Das Schweißplättchen hat die Form des Mantels eines Kegelstumpfes (3) und paßt sich damit der konischen Kalibrierung an.
  • Der eingearbeitete Heizdraht endet in den Kontakten, die als Kontaktlaschen überstehen (4). Dieses Schweißplättchen wird gereinigt und in die Muffe eingelegt (5). Beide Kontaktenden werden mit der regelbaren Stromquelle verbunden. Der nunmehr erwärmte Heizdraht schmilzt das Material der Schweißplättchen sowie die Kontaktwandungen des Rohres und der Muffe an.
  • Die absolute Schmelztemperatur und die Reaktionszeit werden durch die regelbare Stromquelle automatisch ausgesteuert.
  • Nachdem der gewünschte Schmelzpunkt erreicht ist, werden Muffe und Rohr unter leichtem Anpressdruck miteinander verbunden.
  • Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß die gewählte konische Form beim Andrücken die zu verbindenden Teile zentriert. Ein Verkanten der Achse wird vermieden.
  • Die konische Form der zu verbindenden Teile lenkt beim Anpressen den Anpressdruck senkrecht auf die Schweißflächen (6) und gewährleistet eine gleichmäßige, ordnungsgemäße Verbindung.
  • Ein innerer, dem Rohrquerschnitt verengender Wulst kann nicht entstehen.
  • Der Verfahren ermöglicht mit jeweils einer Sorte Schweißplättchen alle Fittings einer Rohrdimension zu verarbeiten.
  • Der Endverarbeiter wird in die Lage versetzt, eine komplette Installation an Ort und Stelle vorzuarbeiten, um dann in einem Zug mit einer Arbeitskraft alle Schweißungen nacheinander durchzuführen.

Claims (2)

  1. Patentansprüche 1. Verfahren zur Herstellung nicht lösbarer Rohrverbindungen von Kunststoffrohren.
    D a d u r c h g e k e n n z e 1 c h n e t, daß zwischen konisch kalibrierter Muffe (1) und konisch 5 kalibriertem Rohr (2) jeweils ein Schweißplättchen mit eingearbeitetem Heizdraht (3) eingefügt wird, dieser Heizdraht mit einer regelbaren Stromquelle verbunden wird, so daß durch die Erwärmung des Heizdrahtes das Material der Schweißplättchen, sowie die Kontaktwandungen des Rohres und der Muffe schmelzen 10 und nach Erreichen des gewünschten Schmelzpunktes Muffe und Rohr unter leichtem Anpressdruck miteinander verbunden werden.
  2. 2. Heizbares Schweißplättchen zur Ermöglichung der Herstellung nicht lösbarer Rohrverbindungen.
    Dadurch g e k e n n z e i c h n e t, 15 daß es die Form des Mantels eines Kegelstumpfes hat (3), sowie mit einem eingearbeiteten Heizdraht mit Außenkontakten versehen ist (4).
DE19843422074 1984-06-14 1984-06-14 Verfahren zur herstellung nicht loesbarer rohrverbindungen von kunststoffrohren Withdrawn DE3422074A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19843422074 DE3422074A1 (de) 1984-06-14 1984-06-14 Verfahren zur herstellung nicht loesbarer rohrverbindungen von kunststoffrohren

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843422074 DE3422074A1 (de) 1984-06-14 1984-06-14 Verfahren zur herstellung nicht loesbarer rohrverbindungen von kunststoffrohren

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DE3422074A1 true DE3422074A1 (de) 1986-01-23

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0622171A1 (de) * 1993-04-27 1994-11-02 Streng Plastic AG Heizmittel für die flächenförmige Verschweissung von thermoplastischen Kunststoffen und Verfahren zur Herstellung desselben
WO1995015253A1 (en) * 1993-11-30 1995-06-08 Uponor Limited Joining of hollow elongate members
WO1997049540A1 (en) * 1996-06-25 1997-12-31 Uponor B.V. Electrofusion fitting
WO2002011973A1 (de) * 2000-08-04 2002-02-14 Friatec Aktiengesellschaft Vorrichtung zum verbinden von bauteilen aus schmelzbarem kunststoff
EP1201403A2 (de) * 2000-10-31 2002-05-02 David Michael Anthony Kenworthy Elektro-Schweisselementen
US7389789B2 (en) 2004-01-21 2008-06-24 Raval-Agriculture Cooperative Societies Ltd. Fuel accessory for fuel tank and method for internally attaching same
DE102007014049B3 (de) * 2007-03-21 2008-12-04 Friatec Ag Ausgleichselement zum Verbinden von Bauteilen
US7913712B2 (en) 2004-01-21 2011-03-29 Raval A.C.S. Ltd. Fuel accessory for fuel tank and method for internally attaching same
JP2011158007A (ja) * 2010-01-29 2011-08-18 Inoac Housing & Construction Materials Co Ltd 樹脂管の熱融着具
RU2503540C2 (ru) * 2012-01-31 2014-01-10 Общество С Ограниченной Ответственностью "Альтерпласт" Способ соединения сваркой трубы с муфтовым элементом, изготовленных из термопластичного материала, и узел сварного соединения, полученный этим способом
CN107002914A (zh) * 2014-11-28 2017-08-01 通用电器技术有限公司 流体导管元件以及用于形成流体导管元件的方法
CN109109320A (zh) * 2018-08-15 2019-01-01 广东联塑科技实业有限公司 一种滑动式电熔焊机接头
CN111231334A (zh) * 2019-08-16 2020-06-05 山东先河高分子材料有限公司 一种超高分子量聚乙烯直管对焊的布线方法
WO2022024921A1 (ja) * 2020-07-28 2022-02-03 昭和電工マテリアルズ株式会社 接合部材、接合構造体、接合用中間構造体及び接合構造体の製造方法

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0622171A1 (de) * 1993-04-27 1994-11-02 Streng Plastic AG Heizmittel für die flächenförmige Verschweissung von thermoplastischen Kunststoffen und Verfahren zur Herstellung desselben
WO1995015253A1 (en) * 1993-11-30 1995-06-08 Uponor Limited Joining of hollow elongate members
WO1997049540A1 (en) * 1996-06-25 1997-12-31 Uponor B.V. Electrofusion fitting
CZ299754B6 (cs) * 2000-08-04 2008-11-12 Friatec Aktiengesellschaft Zarízení ke spojování soucástí z tavitelného plastu a sestava z tavením spojitelných soucástí
WO2002011973A1 (de) * 2000-08-04 2002-02-14 Friatec Aktiengesellschaft Vorrichtung zum verbinden von bauteilen aus schmelzbarem kunststoff
US7204520B2 (en) 2000-08-04 2007-04-17 Friatec Aktiengesellschaft Device for joining components made of fusible plastic
EP1201403A2 (de) * 2000-10-31 2002-05-02 David Michael Anthony Kenworthy Elektro-Schweisselementen
EP1201403A3 (de) * 2000-10-31 2003-01-29 David Michael Anthony Kenworthy Elektro-Schweisselementen
US7913712B2 (en) 2004-01-21 2011-03-29 Raval A.C.S. Ltd. Fuel accessory for fuel tank and method for internally attaching same
US7389789B2 (en) 2004-01-21 2008-06-24 Raval-Agriculture Cooperative Societies Ltd. Fuel accessory for fuel tank and method for internally attaching same
DE102007014049B3 (de) * 2007-03-21 2008-12-04 Friatec Ag Ausgleichselement zum Verbinden von Bauteilen
US8455067B2 (en) 2007-03-21 2013-06-04 Friatec Aktiengesellschaft Compensation element for joining components
JP2011158007A (ja) * 2010-01-29 2011-08-18 Inoac Housing & Construction Materials Co Ltd 樹脂管の熱融着具
RU2503540C2 (ru) * 2012-01-31 2014-01-10 Общество С Ограниченной Ответственностью "Альтерпласт" Способ соединения сваркой трубы с муфтовым элементом, изготовленных из термопластичного материала, и узел сварного соединения, полученный этим способом
CN107002914A (zh) * 2014-11-28 2017-08-01 通用电器技术有限公司 流体导管元件以及用于形成流体导管元件的方法
CN107002914B (zh) * 2014-11-28 2020-07-10 通用电器技术有限公司 流体导管元件以及用于形成流体导管元件的方法
CN109109320A (zh) * 2018-08-15 2019-01-01 广东联塑科技实业有限公司 一种滑动式电熔焊机接头
CN111231334A (zh) * 2019-08-16 2020-06-05 山东先河高分子材料有限公司 一种超高分子量聚乙烯直管对焊的布线方法
CN111231334B (zh) * 2019-08-16 2021-11-30 台州市黄岩奥玛机车部件厂 一种超高分子量聚乙烯直管对焊的布线方法
WO2022024921A1 (ja) * 2020-07-28 2022-02-03 昭和電工マテリアルズ株式会社 接合部材、接合構造体、接合用中間構造体及び接合構造体の製造方法

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