DE1786260U - WELDED CONNECTION FOR PLASTIC PIPES. - Google Patents

WELDED CONNECTION FOR PLASTIC PIPES.

Info

Publication number
DE1786260U
DE1786260U DEF15617U DEF0015617U DE1786260U DE 1786260 U DE1786260 U DE 1786260U DE F15617 U DEF15617 U DE F15617U DE F0015617 U DEF0015617 U DE F0015617U DE 1786260 U DE1786260 U DE 1786260U
Authority
DE
Germany
Prior art keywords
pipe
support ring
welded connection
socket
plastic pipes
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.)
Expired
Application number
DEF15617U
Other languages
German (de)
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.)
Georg Fischer AG
Original Assignee
Georg Fischer 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 Georg Fischer AG filed Critical Georg Fischer AG
Priority to DEF15617U priority Critical patent/DE1786260U/en
Publication of DE1786260U publication Critical patent/DE1786260U/en
Expired 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
    • B29C66/52—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
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • 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
    • B29C66/1222—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 lapped 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
    • B29C66/5229—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
    • B29C66/52—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
    • 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
    • B29C66/71—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
    • 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
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene

Landscapes

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

Description

GEORG FISCHER AKTIENGESELLSCHAFT, Schaffhausen(Schweiz) ----------------------------------- "Schweissverbindung für Kunststoffrohre" Vorliegende Erfindung betrifft eine Schweissverbindung für Kunststoffrohre beispielsweise aus Polyaethylen. GEORG FISCHER AKTIENGESELLSCHAFT, Schaffhausen (Switzerland) ----------------------------------- "Welded connection for plastic pipes" The present invention relates to a welded joint for plastic pipes made of polyethylene, for example.

Das bisher angewendete Verfahren zum Verschweissen von Polyaethylen-Rohren mit Polyaethylen-Fittings bestand darin, dass mit Hilfe eines Heizgerätes das Rohrende aussen und die Fittings-Muffe innen auf Schweisstemperatur gebracht wurden, um anschliessend ineinander geschoben zu werden. Bei dünnwandigen Röhren werden durch die vorstehende Operationen aber nicht nur die Oberflächen der Rohrenden weich, sondern die ganze landung. Dadurch besitzen die Rohrenden zu wenig Festigkeit und Steifheit und fallen beim Einschieben in die Muffenende in sich zusammen oder werfen sich wellenförmig auf. Die Güte der Schweissung ist dadurch in Frage gestellt. Sehr oft wird dadurch auch der Durchflussquerschnitt wesentlich herabgesetzt.The previously used method for welding polyethylene pipes with polyethylene fittings consisted in that with the help of a heater the end of the pipe outside and the fittings socket inside were brought to welding temperature to then to be pushed into each other. In the case of thin-walled tubes, the above Operations not only soft the surfaces of the pipe ends, but the whole landing. This gives the pipe ends too little strength and Rigidity and collapse or throw when pushed into the socket end wavy. This calls into question the quality of the weld. very often this also significantly reduces the flow cross-section.

Die vorliegende Erfindung ermöglicht auch dünnwandige Rohre einwandfrei, zu verschweißen. Das Merkmal der Erfindung ist ein in das Rohr eingesetzter Stützring ; welcher eine höhere Erweichungstemperatur besitzt als das Rohr und dessen Länge der Länge der Muffe angepasst ist. Als Material für den Stützring kann beispielsweise Polypropylen, Polyamid oder bestrahltes Hartpolyaethylen verwendet werden. The present invention also enables thin-walled pipes to be perfectly to weld. The feature of the invention is a support ring inserted into the pipe ; which has a higher softening temperature than the pipe and its length is adapted to the length of the sleeve. As a material for the support ring, for example Polypropylene, polyamide or irradiated hard polyaethylene can be used.

Die Figuren zeigen zwei verschiedene Ausführungsarten der Rohrverbindung gemäss Erfindung und zwar Fig. l das Aufheizen der Verbindung mittels eines rohr- förmigen Schweiss-bzw. Heizgerätes im Schnitt, Fig. 2 eine Bauart der Rohrverbindung im Schnitt, Fig. 3 eine weitere Bauart der Rohrverbindung im Schnitt. The figures show two different embodiments of the pipe connection according to the invention, namely Fig. 1 the heating of the connection by means of a pipe shaped welding or. Heater in section, 2 shows a type of pipe connection in section, 3 shows a further type of pipe connection in section.

Fig. 1 zeigt als Beispiel einer Schweiss-Vorrichtung ein abgesetztes Stahlrohr 1, welches wenig über die Schweisstemperatur des Kunststoffes aufgeheizt wird. Sofern die Schweissvorrichtung 1 irgendwo fest eingespannt wird, kann die Muffe 2 und das Rohrende 3 gleichzeitig angeheizt werden. Damit bei dünnwandigen Rohren das Rohrende 3 beim Einschieben in die Muffe nicht zusammenfällt oder zusammen gestaucht wird, wird gemäss der Erfindung im Rohrende 3 ein Stützring 4 aus einem Kunststoff mit höherer Erweichungs-Temperatur eingesetzt. Fig. 1 shows a remote welding device as an example Steel pipe 1, which is heated a little above the welding temperature of the plastic will. If the welding device 1 is firmly clamped somewhere, the Socket 2 and the pipe end 3 are heated at the same time. So with thin-walled Pipes the pipe end 3 when pushed into the socket does not coincide or is compressed together, according to the invention in the pipe end 3 is a support ring 4 made of a plastic with a higher softening temperature.

Die Schweissraupen 5 und 6 (Fig. 2) entstehen von selbst, durch Aufschieben von weichem Material.The welding beads 5 and 6 (Fig. 2) arise by themselves, by being pushed on of soft material.

Eine weitere Ausführungsart des Stützringes 7 ist in Fig. 3 dargestellt. Derselbe besitzt an seiner äusseren 8 Kontur'einen Bund 9, welcher beim Einschieben des Rohres 3 in die Muffe 2 als Distanzring zwischen der Stirnwand 10 des Rohrendes 3 und dem Absatz 11 der Muffe 2 eingeklemmt wird. Zwischen Rohrende 3 und Muffe 2 entsteht dadurch ein Hohlraum 13, der zur Aufnahme des beim Schweissen zwangsläufig entstehenden überschüssigen Materials 12 dient. Der Stützring 7 wird durch den Bund in seiner achsialen Lage im Rohr 3 eindeutig festgelegt. Another embodiment of the support ring 7 is shown in FIG. The same has a collar 9 on its outer 8 contour, which when pushed in of the pipe 3 in the socket 2 as a spacer ring between the end wall 10 of the pipe end 3 and paragraph 11 of the sleeve 2 is clamped. Between pipe end 3 and socket 2 thereby creates a cavity 13, which inevitably accommodates the during welding resulting excess material 12 is used. The support ring 7 is through the federal government clearly defined in its axial position in the pipe 3.

Als weitere Ausführungsarten können auch längsgeschlitzte oder spiralig (schräg) geschlitzte unter radialer Vorspannung stehende Stützringe verwendet werden. Other types of execution can also be longitudinally slotted or spiral (obliquely) slotted support rings under radial prestress can be used.

Wichtig ist, dass die Stützringe 4 7 aus einem Material hergestellt sind, welches einen höheren Erweichungspunkt besitzt als das Rohrmaterial. Die Stützringe können z. B. aus Polypropylen, Polyamid oder bestrahltem Hartpolyaethylen hergestellt werden. Selbstverständlich können die Stützringe auch aus Metall hergestellt werden. Diese besitzen den Vorteil der geringen Wandstärke. Sie sind jedoch gegenüber Korrosion weniger beständig. It is important that the support rings 4 7 are made of one material which has a higher softening point than the pipe material. The support rings can e.g. B. made of polypropylene, polyamide or irradiated hard polyaethylene will. Of course, the support rings can also be made of metal. These have the advantage of low wall thickness. However, they are opposed to corrosion less stable.

Claims (1)

S c hut z ans p r ü ehe Schutzansprüehe
1. Schweissverbindung für Kunststoffrohre, bestehend aus einem Rohrende und einer Muffe, welche mittels eines heissen Schweissgerätes erhitzt werden, dadurch gekennzeichnet, dass im Innern des Rohres (3) ein Stützring (4, 7) vorgesehen ist, (dessen Länge der abgesetzten Bohrung der Muffe W) angepasst ist und) welcher eine höhere Erweichungs-Temperatur besitzt als das Rohr. 2. Schweissverbindung nach Anspruch 1, dadurch gekennzeichnet, dass der Stützring (4, 7) aus Polypropylen hergestellt ist. Check it out Protection claims
1. Welded joint for plastic pipes, consisting of a pipe end and a sleeve, which are heated by means of a hot welding device, characterized in that a support ring (4, 7) is provided inside the pipe (3) (the length of the offset bore of the Socket W) is adapted and) which has a higher softening temperature than the pipe. 2. Welded connection according to claim 1, characterized in that the support ring (4, 7) is made of polypropylene. 3. Schweissverbindung nach Anspruch 1, dadurch gekennzeichnet, dass der Stützring (4, 7) aus Polyamid her- gestellt ist. 4 4. Schweissverbindung nach Anspruch 1, dadurch gekenn- zeichnet, dass der Stützring (4, 7) aus bestrahltem
Hartpolyaethylen hergestellt ist.3. Welded joint according to claim 1, characterized in that the support ring (4, 7) made of polyamide is posed. 4th 4. Welded connection according to claim 1, characterized shows that the support ring (4, 7) from irradiated
Hard polyaethylene is made. 5. Schweissverbindung nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, dass der Stützring (4, 7) aussen einen Bund (9) aufweist, welcher zwischen der abgesetzten Bohrung der Muffe (2) und dem Rohrende (3) als Distanzring eingeklemmt ist.5. Welded connection according to Claims 1 to 4, characterized in that that the support ring (4, 7) has a collar (9) on the outside, which between the stepped The bore of the socket (2) and the pipe end (3) is clamped as a spacer ring.
DEF15617U 1958-10-11 1958-10-11 WELDED CONNECTION FOR PLASTIC PIPES. Expired DE1786260U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF15617U DE1786260U (en) 1958-10-11 1958-10-11 WELDED CONNECTION FOR PLASTIC PIPES.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF15617U DE1786260U (en) 1958-10-11 1958-10-11 WELDED CONNECTION FOR PLASTIC PIPES.

Publications (1)

Publication Number Publication Date
DE1786260U true DE1786260U (en) 1959-04-02

Family

ID=32858637

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF15617U Expired DE1786260U (en) 1958-10-11 1958-10-11 WELDED CONNECTION FOR PLASTIC PIPES.

Country Status (1)

Country Link
DE (1) DE1786260U (en)

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