DE2024314A1 - Welding thermoplastic pipes - with conical chamfered ends - Google Patents

Welding thermoplastic pipes - with conical chamfered ends

Info

Publication number
DE2024314A1
DE2024314A1 DE19702024314 DE2024314A DE2024314A1 DE 2024314 A1 DE2024314 A1 DE 2024314A1 DE 19702024314 DE19702024314 DE 19702024314 DE 2024314 A DE2024314 A DE 2024314A DE 2024314 A1 DE2024314 A1 DE 2024314A1
Authority
DE
Germany
Prior art keywords
pipes
conical
pipe
pipe ends
tubes
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
DE19702024314
Other languages
German (de)
Inventor
Der Anmelder Ist
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.)
RUEHLE A
Original Assignee
RUEHLE A
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 RUEHLE A filed Critical RUEHLE A
Priority to DE19702024314 priority Critical patent/DE2024314A1/en
Publication of DE2024314A1 publication Critical patent/DE2024314A1/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
    • B29C65/18—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
    • 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
    • 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
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • 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
    • B29C66/1122—Single lap to lap joints, i.e. overlap 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
    • 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
    • B29C66/50—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
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels

Landscapes

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

Abstract

Thermoplastic pipes are welded together by heating their ends and uniting by pressing together, at least one of the pipe ends being provided with a conical chamfer tapering towards its end. Method gives high quality welds of high uniform strength without gaps.

Description

Verfahren zum Schweißen von aus Thermoplasten bestehenden Rohren und Rohre zur Durchfibrun~ des Verfahrens Die Erfindung betrifft ein Verfahren zum Schweißen von aus Thermoplasten bestehenden Rohren, deren Enden erwärmt und dann durch Gegeneinanderdrücken zusa#mengefü.gt werden. Außerdem betrifft die Erfindung besonders ausgestaltete Rohre und Muffen, die zur Durchführung dieses Verfahrens verviendet werden können.Process for welding pipes made of thermoplastics and Pipes for Fibrun ~ the Method The invention relates to a method of welding of pipes made of thermoplastics, the ends of which are heated and then pressed against each other be added together. In addition, the invention relates to particularly designed Pipes and sleeves that can be used to carry out this process.

Es ist bereits bekannt, glatt abgeschnittene Rohrenden auf dazu besonders ausgestalteten Wärmkörpern anzuwärmen und die Rohre dann stumpf ineinandergreifend oder mit Muffen zusaamenzufüfen. Es hat sich aber gezeigt, daß derartig zusarimengeschweißte Rohre keine gute Verbindung aufweisen. Die Verbindung fand nur in einem schmalen, in seiner Ausdehnung nicht vorausbestimmbaren unbestimaten Bereich statt. Ja es konnte sogar vorkommen, daß der die Verbindung eigentlich sicher stellen sollende Ring nicht einmal ganz geschlossen war. Es kamen mit diesem Verfahren Verkantungen und Aufwulstungen größeren Ausmaßes vor.It is already known to use smoothly cut pipe ends on this especially designed heating bodies to be heated and the tubes then butt interlocking or to join with sleeves. But it has been shown that such a welded together Pipes are poorly connected. The connection only took place in a narrow, in its extension, indeterminate area that cannot be determined in advance takes place. Yes it it could even happen that the person who is actually supposed to make the connection secure Ring wasn't even fully closed. This procedure resulted in canting and large bulges.

Außerde:n ließ sich die Verbindun# überhaupt nur mit einem ringförmigen Verbindungsbereich geringer Stärke herstellen, so daß die verschweißten Rohre für den Transport von unter Druck stehenden strömenden Medien überhaup# nicht geeignet waren. Derartige Nachteile haben die beteiligten Kreise schließlich veranlaßt, ganz von diesem bekannten Verfahren Abstand zu nehmen und entsprechende Rohre nicht mehr zu verwenden.In addition, the connection could only be made with a ring-shaped one Establish connection area of low strength, so that the welded pipes for The transport of flowing media under pressure is not suitable at all was. Such disadvantages ultimately caused the circles involved, quite to refrain from this known method and no longer corresponding pipes to use.

Die inzwischen verbesserte 'ualitit dieser Rohre, die sie grundsätzlich zum Transport auch von immer wciirmeren und unter Druck stehenden strömen-:en medien geeignet machte, ließ den Erfinder nicht ruhen und ihn wieder an das bekannte Verfahren herangehen, um es zu verbessern und dabei die vorgenannten cteile zu vermei;-den.The meanwhile improved 'ualitit of these pipes they basically for the transport of increasingly hot and pressurized media made suitable, did not let the inventor rest and get him back to the known process approach to improve it while avoiding the aforementioned parts.

Die Erfindung wird nun darin gesehen, daß wenigstens eines der Rohrenden der iteinander zu verbindenden Rohre mit einer konischen, zum Ende hin verjüngten Absohnägung versehen ist. In weiterer Ausgestaltung der Erfindung können zur Durchführung dieses Verfahrens Rohre gleicher Durchmesser verwendet werden, bei denen jedes der beiden ineinanderzufügenden Enden der Rohre eine konische Abschrägung, drjs eine einen Innenkonus und das andere einen Außenkonus aufweist. Zur Verbindung der Rohre kann aber auch eine Muffe verwendet werden, die innen konische Abschrägungen aufweist, in die die mit zylindrischen Begrenzungsf#ächen versehenen erwärmten Enden der ineinanderzufü-genden Rohre von beiden Seiten her eingeschoben vi:rden können. Selbstverständlich können auch bei Rohrverbindungen mit oder ohne Muffe Rohre mit konischer Abschragung in Verbindung mit solchen gebracht werden, die die konische Abschrägung nicht haben. So können in beliebigen Variationen Rohre miteinander verbunden werden, wobei lediglich zu beachten ist, daß wenigstens eines der zu verbindenden Rohr-oder Muffenenden eine Abschrägung hat. Es ist dabei sogar vorteilhaft, wenn mit diesem ein kohrteil verbunden wird, das keine Abschrgung in der beschriebenen Art aufweist, da durch die dabei gegebene erhöhte Standfestigkeit des Rohrendes beim Einschieben, eine noch innigere Verbindun geschaffen werden kann.The invention is now seen in the fact that at least one of the pipe ends of the pipes to be connected to one another with a conical, tapered towards the end Is provided. In a further embodiment of the invention, for implementation this process pipes of the same diameter are used, in which each of the both ends of the tubes to be joined together have a conical bevel, drjs one has an inner cone and the other has an outer cone. To connect the pipes however, a socket with conical bevels on the inside can also be used, into the heated ends of the ends to be joined, which are provided with cylindrical delimiting surfaces Pipes can be inserted from both sides. Of course you can also for pipe connections with or without socket pipes with conical chamfer in Be brought in connection with those that do not have the conical bevel. In this way, pipes can be connected to one another in any number of variations, with only care should be taken that at least one of the pipe or socket ends to be connected has a bevel. It is even advantageous if a screw part is used with this is connected, which has no bevel in the type described, as through the resulting increased stability of the pipe end when pushed in, a even closer connection can be created.

In der folgenden Beschreibung werden einige Ausführungsbeispiele der'Erfindung anhand der Zeichnungen näher erläutert, wobei auch weitere Einzelheiten der Erfindung näher erläutert werden.In the following description, some embodiments of the invention explained in more detail with reference to the drawings, with further details of the invention are explained in more detail.

Es zeigen jeweils im Schnitt: Fig. 1 eine Muffenverbindung nach der Erfindung mit zwei Ausführungsmöglichkeiten, Fig. 2 eine blose Verbindung zweier Rohrenden, die beide zu ihren Enden hin konisch abgeschrägt sind, Fig. 3 eine Rohrverbindung mit innen konisch abgeschrägtem Rohr, das ein Rohr mit zylindrischen Endflächen überragt, Fig. 4 eine Rohrverbindung mit einem augen konisch abgeschrägten Rohr, das in ein Rohr mit zylindriachen Endflächen eingesteckt ist, Fig. 5 eine Muffe mit zylindrischen Begrenzungsflächen, die Rohre mit außen konisch abgeschrägten -Enden aufnimmt, Fig. 6 im Schnitt ein Heizgerät zur Durchlührung des erfindunggemäßen Verfahrens.They each show in section: FIG. 1 shows a socket connection according to FIG Invention with two possible embodiments, FIG. 2 a mere connection of two Pipe ends which are both bevelled conically towards their ends, Fig. 3 shows a pipe connection with an internally tapered tube, which is a tube with cylindrical end faces towers above 4 shows a pipe connection with a conically bevelled eye Tube which is inserted into a tube with cylindrical end surfaces, Fig. 5 a Socket with cylindrical boundary surfaces, the pipes with bevelled conically on the outside -Ends receives, Fig. 6 in section a heater for the implementation of the inventive Procedure.

In die in Fig.1 darnestellte Muffe 1, die innen auf beiden Seiten mit konischen Abschrägungen 2 und 3 versehen ist, ist von der einen Seite 2 ein Rohrende 4 mit Außenkonus 5 und ein Rohrende 6 mit zylindrischen Begrenzungaflächen eingeführt.In the sleeve 1 shown in Fig.1, the inside on both sides is provided with conical bevels 2 and 3, is from one side 2 a Pipe end 4 with outer cone 5 and a pipe end 6 with cylindrical boundary surfaces introduced.

Bei dem in Fig.2 dargesteAlten Ausführunbsbeispiel sind die Rohrenden 7 und 8 jeweils mit einer konischen Abschragung versehen und zwar das Rohrende 7 mit einem Außenkonus 9 und das Rohrende 8 mit einem Innenkonus 1C, so daß der Innenkonus auf den AuSenkonus aufgeschoben werden kann.In the case of the old embodiment shown in FIG. 2, the pipe ends are 7 and 8 each provided with a conical bevel, namely the pipe end 7 with an outer cone 9 and the pipe end 8 with an inner cone 1C, so that the inner cone can be pushed onto the outer cone.

Bei der Ausführung nach Fig.3 ist das Rohrende 11 ohne Konus und dementspreehend in das Rohrende 12 mit dem Innenkonus 13 eingeführt. Umgekehrt verhält es sich bei dem Ausführungsbeispiel nach Fig.4. Dort ist das Rohrende 14 mit einem Außenkonus 15 versehen und wird mit diesem in das ohne Konus ausgebildete Rohrende 16 eingeführt.In the embodiment according to Figure 3, the pipe end 11 is without a cone and accordingly introduced into the pipe end 12 with the inner cone 13. It is the other way around the embodiment of Figure 4. There is the pipe end 14 with an outer cone 15 and is inserted with this into the tube end 16, which is designed without a cone.

Fig.5 zeigt eine Ausführung bei er eine Muffe 17 mit zylindrischem Innendurchmesser verwendet wird.Fig.5 shows an embodiment in which he has a sleeve 17 with a cylindrical Inside diameter is used.

Die in diese Muffe eingeführten Rohrenden 18 sind mit konischen Abschrägungen 19 versehen.The pipe ends 18 introduced into this socket have conical bevels 19 provided.

Zur Durchführung des erfindungsgemäßen Verfahrens werden die miteinander zu verbindenden Rohrenden oder die Muffe mit einem in Fig.6 dargestellten Gerät 21 je nach dem verwendeten Kunststoff auf eine Temperatur erwärmt, bei der zwei erwärmte unter Druck zusammengeführte Körper an den erwärmten Stellen miteinander verschweißt werden können. In dem Heizgerät 21 sind elektrische Ni#erstände, die insbesondere den Stutzen 22 auf der einen Seite und den Bereich um die Ausnehmung 23 erwärmen können. Bei der' z.Z. verwendeten Material wird dies auf etwa 220-2400C erwärmt. In die Ausnehmung 23 wird das einzuschiebende Rohr eingeschoben und danach von außen her erwärmt, während über den Stutzen das aufzuschiebende Rohr oder die zu verwendende Muffe aufgeschoben und dann erwärmt wird Am besten und am sichersten läßt sich das erfindungsgemäße Verfahren dann durchführen, wenn ein mit zylindrischen Begrenzungsflächen versehenes Rohr in eine mit konischen Abschrägungen versehene Mu@fe oder ein mit konischen Abschrägungen versehenes anderes Rohr eingeschoben wird. Jedenfalls haben die bisher mit derartigen Verbindungen durchgeführten Versuche die größte Dichtheit und Widerstandsfähigkeit nuch bei Verwendung der Rohre und ihren Verbindungen zum Transport von beißen und strömenden medien gezeigt.To carry out the process according to the invention, the pipe ends to be connected or the socket with a device shown in Fig. 6 21 depending on the plastic used, heated to a temperature at which two Heated bodies joined together under pressure at the heated areas can be welded. In the heater 21, there are electrical supplies that in particular the connection piece 22 on the one hand and the area around the recess 23 can heat up. At the 'currently The material used will set this to around 220-2400C warmed up. The tube to be inserted is pushed into the recess 23 and then heated from the outside, while the pipe to be pushed on or the sleeve to be used pushed on and then heated is best and the method according to the invention can be carried out most safely when a tube provided with cylindrical boundary surfaces into a tube with conical bevels provided Mu @ fe or another tube provided with conical bevels is inserted will. In any case, the attempts hitherto carried out with such compounds have failed the greatest tightness and resistance even when using pipes and shown their connections to the transport of biting and flowing media.

Claims (7)

Ansprüche Expectations Verfahren zum Schweißen von aus Thermoplasten bestehenden Rohren, deren Enden erwärmt und durch Gegeneinanderdrücken zusammengefügt werden, dadurch gekennzeichnet, daß wenivstens eines der Rohrenden mit einer konischen, zum Ende hin ver-Jünoten Abschrägung versehen ist.Process for welding pipes made of thermoplastics, the ends of which are heated and joined by pressing against each other, thereby characterized in that at least one of the pipe ends with a conical, to the end towards ver-Jünoten bevel is provided. 2. Rohre zur Durchführun-- des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß jedes der beiden ineinanderzufüzenden Enden der Rohre mit vorzugsweise gleichen Durchmessern eine konische Abschräguno, das eine () einen Innenkonus (10) und das andere (7) einen Außenkonus (9) aufweist.2. Pipes for implementation of the method according to claim 1, characterized characterized in that each of the two ends of the tubes to be nested together with preferably same diameter a conical chamfer, one () an inner cone (10) and the other (7) has an outer cone (9). 3. Rohre zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß nur eines der beiden ineinanderzufügenden Enden der Rohre (1,10,12,14,18) eine konische Abschrägung (2,3, 13,15,19) aufweist, während das Ende des anderen Rohres (6,11,16,17) zylindrische Begrenzungsflächen aufweist.3. Pipes for carrying out the method according to claim 1, characterized characterized in that only one of the two ends of the tubes (1,10,12,14,18) which are to be joined together has a conical bevel (2,3, 13,15,19), while the end of the other Tube (6,11,16,17) has cylindrical boundary surfaces. 4. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß zur Verbindung der Rohre eine uffe (1,17) verwendet wird, in die die beiden zu verbindenden Rohrenden (4,6,18) von beiden Seiten her eingesteckt werden.4. The method according to claim 1, characterized in that for connection the pipes a uffe (1,17) is used, in which the two pipe ends to be connected (4,6,18) can be inserted from both sides. 5. Rohre zur Durchführung des Verfahrens nach Anspruch 4, dadurch gekennzeichnet, daß die Muffe(l) und die Rohrenden (4) mit konischen Abschrägungen (2,5) versehen sind.5. Pipes for performing the method according to claim 4, characterized characterized in that the sleeve (l) and the pipe ends (4) with conical bevels (2.5) are provided. 6. -Rohre zur Durchführung des Verfahrens nach Anspruch 4, dadurch gekennzeichnet, daß lediglich die Muffe (1) mit konischen Abschrägungen (Innenkon#n) (3) versehen ist, während die Enden der Rohre (6) zylindrische Begrenzunsflächen aufweisen.6. pipes for carrying out the method according to claim 4, characterized marked that only the socket (1) with conical bevels (Innenkon # n) (3) is provided, while the ends of the tubes (6) have cylindrical boundary surfaces exhibit. 7. Rohre zur Durchführung des Verfahrens nach Anspruch 4 dadurch gekennzeichnet, daß lediglich die Rohrenden (18) mit konischen Abschrägungen (19) (Außenkonen) versehen sind, während die Muffe (17) zylindrische Begrenzungsflächen aufweist.7. Pipes for carrying out the method according to claim 4, characterized in that that only the pipe ends (18) are provided with conical bevels (19) (outer cones) are, while the sleeve (17) has cylindrical boundary surfaces.
DE19702024314 1970-05-19 1970-05-19 Welding thermoplastic pipes - with conical chamfered ends Pending DE2024314A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19702024314 DE2024314A1 (en) 1970-05-19 1970-05-19 Welding thermoplastic pipes - with conical chamfered ends

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702024314 DE2024314A1 (en) 1970-05-19 1970-05-19 Welding thermoplastic pipes - with conical chamfered ends

Publications (1)

Publication Number Publication Date
DE2024314A1 true DE2024314A1 (en) 1971-12-02

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ID=5771453

Family Applications (1)

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DE19702024314 Pending DE2024314A1 (en) 1970-05-19 1970-05-19 Welding thermoplastic pipes - with conical chamfered ends

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DE (1) DE2024314A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0157168A2 (en) * 1984-04-06 1985-10-09 Hans Dipl.-Ing. Armbruster Process for socket-joining thermoplastics-covered heating pipes using a welding mirror

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0157168A2 (en) * 1984-04-06 1985-10-09 Hans Dipl.-Ing. Armbruster Process for socket-joining thermoplastics-covered heating pipes using a welding mirror
EP0157168A3 (en) * 1984-04-06 1987-02-04 Hans Dipl.-Ing. Armbruster Process for socket-joining thermoplastics-covered heating pipes using a welding mirror

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