DE1099157B - Method of joining the ends of pipes made of thermoplastic material - Google Patents

Method of joining the ends of pipes made of thermoplastic material

Info

Publication number
DE1099157B
DE1099157B DEB41389A DEB0041389A DE1099157B DE 1099157 B DE1099157 B DE 1099157B DE B41389 A DEB41389 A DE B41389A DE B0041389 A DEB0041389 A DE B0041389A DE 1099157 B DE1099157 B DE 1099157B
Authority
DE
Germany
Prior art keywords
ring
rotatable
conical
pipes
joining
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.)
Pending
Application number
DEB41389A
Other languages
German (de)
Inventor
Hermann Klein
Dipl-Ing Ludwig Benker
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DEB41389A priority Critical patent/DE1099157B/en
Publication of DE1099157B publication Critical patent/DE1099157B/en
Pending 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
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B29C65/0672—Spin welding
    • 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
    • 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
    • B29C66/112—Single lapped 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
    • B29C66/11—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
    • 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
    • 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
    • B29C66/5224—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces
    • B29C66/52241—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces with two right angles, e.g. for making T-shaped pieces
    • 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
    • B29C66/52298—Joining tubular articles involving the use of a socket said socket being composed by several elements
    • 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
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/24—Pipe joints or couplings
    • B29L2031/246—T-joints

Landscapes

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

Description

Verfahren zum Verbinden der Enden von Rohren aus thermoplastischem Kunststoff Es ist bereits bekannt, thermoplastische Kunststoffpreß- oder Kunststoffspritzteile dadurch zu verbinden, daß man den einen der zu verbindenden Teile mit leichtem axialem Druck gegen einen in Umdrehung zu versetzenden Teil drückt, so daß durch Reibungsschweißung an den Grenzflächen eine Stumpfschweißnaht entsteht. Für die Herstellung derartiger Verbindungen verwendet man zum Aufstecken mindestens des einen der zu verbindenden Teile eine rotierende Aufspannvorrichtung, z. B. einen Dorn. Zur Verbindung von Rohren, die nicht bewegbar sind, insbesondere zur Verbindung von Rohrleitungen, die festliegen oder auf einer Wand gehalten sind, ist das bekannte Verfahren nicht brauchbar.Method of joining the ends of pipes made of thermoplastic Plastic It is already known, thermoplastic plastic molded or plastic injection molded parts to connect by one of the parts to be connected with a slight axial Pressure pushes against a part to be set in rotation, so that by friction welding A butt weld is created at the interfaces. For the production of such Connections are used to attach at least one of the connections to be made Parts of a rotating jig, e.g. B. a thorn. To connect Pipes that cannot be moved, especially for connecting pipes, which are fixed or held on a wall is not the known method useful.

Es wurde nun gefunden, daß man zum Verbinden der Enden von Rohren aus thermoplastischen Kunststoffen untereinander oder mit Fittings durch Reibungsschweißen, bei dem also durch Rotation eines der zur Verbindung gehörenden Teile die Reibungswärme erzeugt wird, die obenerwähnten Schwierigkeiten ausschalten und dadurch die Reibungsschweißverbindung allgemeiner anwenden kann. Erfindungsgemäß wird dabei so vorgegangen, daß insbesondere zwischen festliegenden nicht rotierbaren Rohrenden bzw. zwischen einem Rohrende und einem Fitting ein ringförmiger dritter Teil aus gleichem oder ähnlichem Kunststoff eingefügt und auf diesen Teil die Rotation übertragen wird. It has now been found that one can join the ends of pipes made of thermoplastics with each other or with fittings by friction welding, In the case of the rotation of one of the parts belonging to the connection, the frictional heat is generated, eliminate the above-mentioned difficulties and thereby the friction weld joint can apply more generally. According to the invention, the procedure is such that in particular between fixed, non-rotatable pipe ends or between one pipe end and a fitting, an annular third part made of the same or similar plastic inserted and the rotation is transferred to this part.

Bei Anordnungen zur Ausführung dieses Reibungsschweiß verfahrens sind die zu verbindenden Teile derart muffenartig ausgebildet, daß an der Verbindungsstelle ein konischer Spalt entsteht, in den der rotierbare konische Ring eingesteckt ist, an dessen Berührungsflächen mit den feststehenden Teilen der Rohrverbindung die Reibungswärme entsteht. In arrangements to carry out this friction welding process the parts to be connected are designed like a sleeve that at the connection point a conical gap is created in which the rotatable conical ring is inserted, at its contact surfaces with the fixed parts of the pipe connection Frictional heat is generated.

Die Erfindung sei an den nachstehenden Beispielen und den Abbildungen näher erläutert. The invention is based on the following examples and the figures explained in more detail.

Beispiel 1 Die Enden zweier Rohre 1 und 2 (Abb. 1) aus einem thermoplastischen Kunststoff, beispielsweise Polyvinylchlorid, Polyamid oder Polyäthylen, von denen das eine Ende (vgl. Ende 2) zu einer Muffe konisch aufgeweitet wurde, werden so ineinandergesteckt, daß zwischen der Muffe und dem eingeführten Rohrende ein konischer Spalt, beispielsweise von etwa 100, entsteht. In diesen Spalt führt man einen ihm angepaßten, im Querschnitt keilförmigen Ring 3 ein, der mit dem breiten Teil so weit aus dem Muffenspalt herausragt, daß er z. B. über eine an diesem Ringteil angebrachte Verzahnung in Rotation versetzt werden kann. Die Verzahnung kann bei der Herstellung des keilförmigen Ringes durch Spritzguß erzeugt sein. Man kann aber auch einen metallischen Zahnkranz an dem Ring fest anbringen, beispielsweise beim Herstellen des Ringes durch Spritzgießen gleich fest einbetten. Example 1 The ends of two pipes 1 and 2 (Fig. 1) made of a thermoplastic Plastic, such as polyvinyl chloride, polyamide or polyethylene, of which one end (cf. end 2) was widened conically to form a socket, are so nested that between the sleeve and the inserted pipe end a conical Gap, for example of about 100, is created. You lead him into this gap adapted, in cross-section wedge-shaped ring 3, the so with the wide part protrudes far from the socket gap that he z. B. attached to this ring part Teeth can be set in rotation. The toothing can be used during manufacture of the wedge-shaped ring be produced by injection molding. But you can also use a metallic one The ring gear firmly to the ring attach, for example when making the ring Embed injection molding firmly.

An einem Elektromotor ist ein Getriebe angeordnet, aus dem zwei biegsame Wellen führen. An beiden Enden der Wellen sind konische Zahnräder angebracht. A gear is arranged on an electric motor, from which two flexible Lead waves. Conical gears are attached to both ends of the shafts.

Mit Hilfe einer Rohrschelle, die an das zu verschweißende Rohrende angeschraubt ist, werden die beiden Wellen mit den Zahnrädern so an den Zahnkranz des Keilringes geführt, daß dieser unter geringem axialem Druck gedreht wird. Die notwendige Haltevorrichtung für die Rohre und Fittings ist ebenfalls an der Rohrschelle angebracht. Durch das Drehen, das beispielsweise für das Verschweißen von Polyäthylenrohren zweckmäßig mit einer Geschwindigkeit von etwa 70 m/Min. erfolgt, wird Reibungswärme erzeugt. Sobald die zum Verschweißen erforderliche Temperatur erzielt ist, was man durch das Hervortreten von überschüssigem Schweißgut an den Reibungsstellen leicht feststellen kann, wird der Motor abgestellt und das Ganze sich selbst zum Abkühlen überlassen. Man erhält eine vollkommen homogene, sehr feste Schweißverbindung.With the help of a pipe clamp attached to the pipe end to be welded is screwed on, the two shafts with the gears are attached to the ring gear out of the wedge ring so that it is rotated under slight axial pressure. the The necessary holding device for the pipes and fittings is also on the pipe clamp appropriate. By turning, for example for welding polyethylene pipes expediently at a speed of about 70 m / min. occurs, is frictional heat generated. As soon as the temperature required for welding has been reached, what one easy due to the protrusion of excess weld metal at the friction points can determine, the engine is turned off and the whole thing to cool itself down left. A completely homogeneous, very strong welded joint is obtained.

Beispiel 2 In entsprechender Weise kann man auch drei Rohrenden 1, 2 und 3 (Abb. 2) mit einem Rohrabzweigstück 4 verschweißen. Auch hier werden, ähnlich wie im vorstehenden Beispiel beschrieben, im Querschnitt keilförmige Ringe 5 mit einer am dicken Ringteil angebrachten Verzahnung in die keilförmigen Spalte zwischen dem Fitting und den Rohren eingesetzt und unter axialem Druck gedreht, so daß Reibungswärme entsteht. Sobald die zum Verschweißen erforderliche Temperatur erreicht ist, wird das Drehen abgestellt. Example 2 In a corresponding manner, three pipe ends 1, Weld 2 and 3 (Fig. 2) to a branch pipe 4. Here, too, will be similar as described in the previous example, rings 5 with wedge-shaped cross-section a toothing attached to the thick ring part in the wedge-shaped gap between the fitting and the pipes are inserted and rotated under axial pressure, so that frictional heat arises. As soon as the required for welding Temperature reached turning is stopped.

Man erhält auch hier eine außerordentlich feste und gleichmäßige Verschweißung.Here, too, an extremely strong and uniform weld is obtained.

In entsprechender Weise kann man auch Rohre ausanderen thermoplastischen Kunststoffen, beispiels- -weise aus unpiastifiziertem Polyvinylchlorid, aus Polystyrol; aus Polyamiden u. a., verschweißen. In a corresponding manner, other thermoplastic pipes can also be used Plastics, for example made of unplasticized polyvinyl chloride, of polystyrene; made of polyamides and others.

PATENTANSPROCHE: 1. Verfahren zum Verbinden der Enden von Rohren aus thermoplastischem Kunststoff untereinander oder mit Fittings durch Reibungsschweißen, bei dem also durch Rotation eines der zur Verbindung gehörenden Teile die Reibungswärme erzeugt wird, dadurch gekennzeichnet, daß insbesondere zwischen festliegenden, nicht rotierbaren Rohrenden bzw. zwischen einem Rohrende und einem Fitting ein ringförmiger dritter Teil aus gleichem oder ähnlichem Kunststoff eingefügt und auf diesen Teil die Rotation übertragen wird. PATENT CLAIMS: 1. Method of joining the ends of pipes made of thermoplastic with each other or with fittings by friction welding, In the case of the rotation of one of the parts belonging to the connection, the frictional heat is generated, characterized in that in particular between fixed, not rotatable pipe ends or an annular one between a pipe end and a fitting third part made of the same or similar plastic inserted and on this part the rotation is transmitted.

Claims (1)

2.-Anordnung zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß die zu verbindenden Teile derart muffenartig ausge--bildet sind, daß an der Verbindungsstelle ein konischer Spalt entsteht, in den der rotierbare konische Ring eingesteckt ist, an dessen Berührungsflächen mit den feststehenden Teilen der Rohrverbindung die Reibungswärme entsteht. 2.-arrangement for performing the method according to claim 1, characterized characterized in that the parts to be connected are designed like a sleeve, that a conical gap arises at the junction into which the rotatable conical ring is inserted, at its contact surfaces with the fixed The frictional heat is created by dividing the pipe connection. 3. Rotierbarer Ring für die Anordnung nach Anspruch 2, dadurch gekennzeichnet, daß er am außenliegenden starken Ringende eine Verzahnung besitzt. 3. Rotatable ring for the arrangement according to claim 2, characterized in that that he has a toothing at the outer strong ring end. 4. Rotierbarer Ring nach Anspruch 3, dadurch gekennzeichnet, daß die Verzahnung aus einem Metallelement besteht, das durch den Herstellungsvorgang, insbesondere Spritzgießen, des konischen Ringes in diesen Ring fest eingebettet ist. 4. Rotatable ring according to claim 3, characterized in that the toothing consists of a metal element which, through the manufacturing process, in particular injection molding, the conical ring firmly embedded in this ring is. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 849 481. Documents considered: German Patent No. 849 481
DEB41389A 1956-08-14 1956-08-14 Method of joining the ends of pipes made of thermoplastic material Pending DE1099157B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB41389A DE1099157B (en) 1956-08-14 1956-08-14 Method of joining the ends of pipes made of thermoplastic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB41389A DE1099157B (en) 1956-08-14 1956-08-14 Method of joining the ends of pipes made of thermoplastic material

Publications (1)

Publication Number Publication Date
DE1099157B true DE1099157B (en) 1961-02-09

Family

ID=6966379

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB41389A Pending DE1099157B (en) 1956-08-14 1956-08-14 Method of joining the ends of pipes made of thermoplastic material

Country Status (1)

Country Link
DE (1) DE1099157B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1479185B1 (en) * 1962-09-15 1970-12-17 Yhtyneet Muovitehtaat Oy Foere Method and device for butt welding profiles, in particular pipes, made of thermoplastic material
WO2006131212A1 (en) * 2005-06-09 2006-12-14 Schaeffler Kg Method for connecting two components by means of friction welding using an intermediate element, and welded connection

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE849481C (en) * 1949-07-06 1952-09-15 Max Schmidt Method and device for joining thermoplastic plastic molded or injection molded parts

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE849481C (en) * 1949-07-06 1952-09-15 Max Schmidt Method and device for joining thermoplastic plastic molded or injection molded parts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1479185B1 (en) * 1962-09-15 1970-12-17 Yhtyneet Muovitehtaat Oy Foere Method and device for butt welding profiles, in particular pipes, made of thermoplastic material
WO2006131212A1 (en) * 2005-06-09 2006-12-14 Schaeffler Kg Method for connecting two components by means of friction welding using an intermediate element, and welded connection

Similar Documents

Publication Publication Date Title
EP0221395B1 (en) Flanged joint for fibre-reinforced plastic tube parts
EP0152752A2 (en) Connection for fibre-reinforced plastic pipes
DE1008967B (en) Plastic transition piece for pipelines, especially for the connection of metal with plastic pipelines
DE1675213A1 (en) Pipe coupling
DE2315731A1 (en) MOLDED PART, IN PARTICULAR HOSE CONNECTION PART
DE1099157B (en) Method of joining the ends of pipes made of thermoplastic material
DE2926215A1 (en) PERFECTED CONNECTOR WITH CONE SEAL O.AE.
EP1161336B1 (en) Method for joining a pipe made of pe-x to a pipe fitting made of pe by heating element socket welding, device for carrying out said method and junction produced by said method
DE1950141A1 (en) Branch piece made of plastic, in particular thermoplastic plastic
DE7121715U (en) Resistance heating element for welding objects made of thermoplastic plastic
DE2230740A1 (en) RING SEAL FOR CONNECTIONS TO PIPES, FITTINGS AND THE LIKE
DE939719C (en) Tube made of non-weldable plastic
CH675850A5 (en)
DE10259143B3 (en) T-joint for connecting tubes of pipeline has transition region between third connector and tube piece welded to it surrounded by reinforcing ring
DE437289C (en) Hose connection
DE1918501U (en) PIPE MADE OF PLASTIC AND OVERFLOW RING AS A PIPE CONNECTION.
DE4136349A1 (en) Appts. for welding plastic tubes together - prevents formation of internal weld beads, and has metal heating ring and plate holding, e.g. PTFE, ring fitting into one tube
AT216848B (en) Device for producing a tight connection of pipes, hoses, fittings or the like.
DE102008062874A1 (en) Valve housing body, particularly for seating valve, has installation passage for controlling element and for closing element, and joining rim that is provided with connecting element
DE1902520A1 (en) Fittings for pipe connections
DE2411891C3 (en) Isolation pipe coupling
DE2416308A1 (en) WELDED JOINT FOR TWO METAL COMPONENTS
DE2244634A1 (en) METHOD FOR MANUFACTURING HOSES, E.G. VACUUM CLEANER HOSES AND HOSE MANUFACTURED THEREFORE
CH663653A5 (en) Coupling device for producing a permanent pipe connection
DE1140156B (en) Connection set for connecting the flushing pipe to the inlet connection of a toilet bowl and procedure for assembling the connection set