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DE1014803B - Muffenschweissverbindung fuer Kunststoffrohre - Google Patents

Muffenschweissverbindung fuer Kunststoffrohre

Info

Publication number
DE1014803B
DE1014803B DEF19131A DEF0019131A DE1014803B DE 1014803 B DE1014803 B DE 1014803B DE F19131 A DEF19131 A DE F19131A DE F0019131 A DEF0019131 A DE F0019131A DE 1014803 B DE1014803 B DE 1014803B
Authority
DE
Germany
Prior art keywords
socket
weld connection
plastic pipes
welded
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.)
Pending
Application number
DEF19131A
Other languages
English (en)
Inventor
Dr-Ing Kurt Richard
Georg Diedrich
Dipl-Ing Erwin Gaube
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.)
Hoechst AG
Original Assignee
Hoechst 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 Hoechst AG filed Critical Hoechst AG
Priority to DEF19131A priority Critical patent/DE1014803B/de
Priority to CH347050D priority patent/CH347050A/de
Priority to GB39128/56A priority patent/GB849773A/en
Publication of DE1014803B publication Critical patent/DE1014803B/de
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
    • 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
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—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
    • B29C66/01—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
    • B29C66/52—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
    • B29C66/52293—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being external
    • 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
    • B29C66/63—Internally supporting the article during joining
    • B29C66/636—Internally supporting the article during joining using a support which remains in the joined object
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

DEUTSCHES
Als Verbindungen für Rohre aus schweißbaren Kunststoffen sind die Stumpf schweiß verbindung und die Muffenschweißverbindung bekannt. Bei der Stumpfschweißverbindung werden die beiden Rohrenden mittels einer Heizplatte auf Schweißtemperatur gebracht und dann aneinandergedrückt und so miteinander verschweißt (Abb. 1). Bei der Muffenschweißverbindung werden die beiden Rohrenden auf der äußeren Oberfläche auf Schweiß temperatur erhitzt und mit einer darübergeschobenen Muffe;, die an der Innenoberfläche auf Schweißtetnperatur erhitzt wurde, verbunden, wobei der dazu notwendige Druck mittels entsprechend geformter Zangen aufgebracht wird (Abb. 2 und 3). Gemäß einem weiteren bekannten Verfahren wird zur Erzeugung der notwendigen Schweißwärme eine in die Muffe eingelegte elektrische Heizdrahtspirale verwendet.
Bei der bekannten Stumpfschweißverbindung genügt trotz sachgemäßer Ausführung die Haltbarkeit oft nicht den Anforderungen, insbesondere wenn bei mäßiger Erwärmung die Rohre sich ausdehnen und ausknicken und dadurch die Schweißverbindungen Wechselbiegebeanspruchung erhalten. Der Grund für diesen Nachteil ist die verhältnismäßig kleine tragende Verbindungsfläche. Bei der Muffenschweißung ist zwar die tragende Fläche größer und die Haltbarkeit besser. Nachteilig hierbei ist jedoch die Umlenkung des Kraftflusses und die Kerbwirkung am Muffenende infolge der Versteifung durch die Muffe.
Zur Vermeidung der aufgezeigten Nachteile wird erfmdungsgemäß vorgeschlagen, die Stumpfschweißung derart mit der Muffenverbindung zu kombinieren (Abb. 4), daß sowohl die Stirnflächen, als auch die Mantelflächen von Muffe und Rohr miteinander verschweißt sind. Die Erzeugung der notwendigen Schweißwärme kann hierbei nach den bekannten Verfahren, wie Erhitzen mittels Dorn, elektrischer Heizdrahtspirale u. a., erfolgen. Diese Kombination verringert die scharfe Umlenkung des Kraftflusses der Muffenverbindung, während deren Vorteile — Vergrößerung der tragenden Fläche — beibehalten werden. Zur weiteren Verringerung der ungünstigen Kerbwirkung durch den plötzlichen Übergang des biegeweichen Rohres zur steiferen Muffe kann die Muffe gegen beide Enden konisch abgeflacht werden (Abb. 5). Die Stirnflächen können ebenfalls konisch gehalten sein, wodurch eine bessere Verzahnung er-Muffenschweißverbindung
für Kunststoffrohre
Anmelder:
Farbwerke Hoechst Aktiengesellschaft
vormals Meister Lucius & Brüning,
Frankfurt/M.
Dr.-Ing, Kurt Richard, Bad Soden (Taunus),
Georg Diedrich, Neuenhain (Taunus),
und Dipl.-Ing. Erwin Gaube, Kelsterbach/M.,
sind als Erfinder genannt worden
reicht ist. Eine abgewandelte Form dieser Verbindung ist die Ausbildung als Innenmuffe (Abb. 6 und 7), die insbesondere für verfestigte Rohre geeignet ist. Sie kann, jedoch auch für nicht verfestigte Rohre verwendet werden. Bei dieser Verbindung können die Rohrenden etwas aufgeweitet werden, wenn der Durchflußquerschnitt des Rohres in seiner vollen Höhe erhalten bleiben soll.

Claims (3)

PATENTANSPRÜCHE:
1. Muffenschweißverbindung für Kunststoffrohre, bei der die an ihren Mantelflächen mit den Rohren verschweißte Muffe einen Mittelsteg aufweist, dadurch gekennzeichnet, daß die Muffe (1) außer an den Mantelflächen (5) auch noch an den Stirnflächen (6) des Mittelsteges (2) bzw. der Rohrenden. (3, 4) verschweißt ist, wobei die Erzeugung der Schweißwärme in an sich bekannter Weise erfolgt.
2. Muffenschweißverbindung nach Anspruch 1, gekennzeichnet durch eine beidseitig konisch, verlaufende Muffe (1) und geradem oder konisch, ausgeführtem. Mittelstag (2).
3. Muffenschweißverbindung nach Anspruch 1, dadurch gekennzeichnet, daß die Muffe als Innenmuffe ausgeführt ist.
DEF19131A 1955-12-22 1955-12-22 Muffenschweissverbindung fuer Kunststoffrohre Pending DE1014803B (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DEF19131A DE1014803B (de) 1955-12-22 1955-12-22 Muffenschweissverbindung fuer Kunststoffrohre
CH347050D CH347050A (de) 1955-12-22 1956-12-20 Schweissverbindung von Kunststoffrohren mit einem Fitting
GB39128/56A GB849773A (en) 1955-12-22 1956-12-21 Welded sleeve joints connecting pipes made of synthetic plastics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF19131A DE1014803B (de) 1955-12-22 1955-12-22 Muffenschweissverbindung fuer Kunststoffrohre

Publications (1)

Publication Number Publication Date
DE1014803B true DE1014803B (de) 1957-08-29

Family

ID=7089208

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF19131A Pending DE1014803B (de) 1955-12-22 1955-12-22 Muffenschweissverbindung fuer Kunststoffrohre

Country Status (3)

Country Link
CH (1) CH347050A (de)
DE (1) DE1014803B (de)
GB (1) GB849773A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3387864A (en) * 1965-07-19 1968-06-11 Amercoat Corp Pipe coupling
US3768841A (en) * 1970-10-02 1973-10-30 Allied Chem Plastic pipe joint
US3809412A (en) * 1971-01-21 1974-05-07 Hepworth Iron Co Ltd Pipe couplings
US3850459A (en) * 1971-06-01 1974-11-26 Sloane Mfg Co R & G Reinforced plastic pipe fittings
US3961814A (en) * 1969-10-21 1976-06-08 Allied Chemical Corporation Method of joining plastic pipe
US4624486A (en) * 1982-11-12 1986-11-25 Hitachi Zosen Corporation Structure at resin pipe connections

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4370790A (en) * 1980-12-19 1983-02-01 Everest & Jennings, Inc. T-joint method and product
CH672538A5 (de) * 1986-10-31 1989-11-30 Fischer Ag Georg
DE9202575U1 (de) * 1992-02-27 1992-08-13 Karl Rafeld KG Spritzgußwerk, Elektronik und Formenbau, 8954 Biessenhofen Rohrverbindungsstück aus Kunststoff für den Sanitär - und Heizungsbereich
JP5291336B2 (ja) * 2007-12-27 2013-09-18 日本管洗工業株式会社 金属被接合部材の接合方法及び接合構造

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3387864A (en) * 1965-07-19 1968-06-11 Amercoat Corp Pipe coupling
US3961814A (en) * 1969-10-21 1976-06-08 Allied Chemical Corporation Method of joining plastic pipe
US3768841A (en) * 1970-10-02 1973-10-30 Allied Chem Plastic pipe joint
US3809412A (en) * 1971-01-21 1974-05-07 Hepworth Iron Co Ltd Pipe couplings
US3850459A (en) * 1971-06-01 1974-11-26 Sloane Mfg Co R & G Reinforced plastic pipe fittings
US4624486A (en) * 1982-11-12 1986-11-25 Hitachi Zosen Corporation Structure at resin pipe connections

Also Published As

Publication number Publication date
CH347050A (de) 1960-06-15
GB849773A (en) 1960-09-28

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