EP1520133A1 - Anordnung zum verbinden zweier rohrförmiger thermoplastischer elemente - Google Patents

Anordnung zum verbinden zweier rohrförmiger thermoplastischer elemente

Info

Publication number
EP1520133A1
EP1520133A1 EP03732162A EP03732162A EP1520133A1 EP 1520133 A1 EP1520133 A1 EP 1520133A1 EP 03732162 A EP03732162 A EP 03732162A EP 03732162 A EP03732162 A EP 03732162A EP 1520133 A1 EP1520133 A1 EP 1520133A1
Authority
EP
European Patent Office
Prior art keywords
tubular element
assembly
sleeve
wall
thermoplastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03732162A
Other languages
English (en)
French (fr)
Inventor
Georges-André Frey
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.)
Bindring SA
Original Assignee
Bindring SA
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 Bindring SA filed Critical Bindring SA
Publication of EP1520133A1 publication Critical patent/EP1520133A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • F16L47/03—Welded joints with an electrical resistance incorporated in the joint
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3644—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a ribbon, band or strip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5057—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like positioned between the surfaces to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—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
    • B29C66/50—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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • B29C65/368—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic with a polymer coating

Definitions

  • the present invention relates to an assembly for fixing, by fusion, two thermally non-expandable thermoplastic tubular elements.
  • the invention also relates to a method of fixing thermoplastic tubular elements using said assembly.
  • Attachment assemblies of two thermally non-expandable thermoplastic tubular elements are known, following the melting by heating of their contact zone. Heating can be achieved by setting up a magnetic field (induction heating) or a current (resistance heating) in a conductive element incorporated in one of the thermoplastic tubular elements.
  • Such systems are described in patent documents WO 80/02124, EP 0 480 053 A1, US 4 634 844, WO 81/02405.
  • One of the aims of the present invention is to simplify the assemblies for fixing, by fusion, two tubular elements.
  • Another object concerns the possibility of using existing tubular elements which do not contain conductive elements in their fixing zones but which, at the cost of a very simple modification of the internal diameter of one of the tubular elements, can be fixed to each other by fusion.
  • an assembly for the fusion fixing of two thermally non-expandable thermoplastic tubular elements characterized in that it comprises a first thermally non-expandable thermoplastic tubular element and comprising a zone of fixing on the internal wall of one of its ends, a second thermally non-expandable thermoplastic tubular element comprising a fixing zone on the external wall of one of its ends, the diameter of the internal wall of said end of the first tubular element being greater than the diameter of the external wall of said end of the second tubular element so as to define, when the two ends overlap, an annular space between said internal and external walls, the assembly further comprising a suitable thermoplastic sleeve to be housed in said annular space, said sleeve containing a conductive element which can be heated by induction.
  • thermoplastic it is necessary to understand any plastic material which melts under the action of heat or, at least, softens enough to be able to be shaped an infinite number of times, without modification of its properties.
  • thermoplastic material which can be used in the context of the present invention, mention may be made of polypropylene, poly butene, polyethylene or any other similar synthetic resin.
  • the tubular elements used in the context of the present invention can have any shape.
  • One of the elements can be a fitting, a bent element or a T-shaped element.
  • the invention also relates to a method of fixing by fusion of two tubular elements using the assembly described above, characterized by the following steps: - adjustment of the diameter of the internal wall of the first tubular element so as to be able to have the sleeve in said annular space ,
  • Figure 1 shows a longitudinal section of a fastening assembly of two tubular elements.
  • FIG. 2 represents a front section of the assembly of FIG. 1.
  • the assembly illustrated in FIGS. 1 and 2 consists of a first thermoplastic tubular element 1 and a second thermoplastic tubular element 2.
  • the outside diameter of the second tubular element 2 is less than the inside diameter of the first tubular element 1.
  • the difference in diameter between the two tubular elements 1, 2 can for example be of the order of 4 mm.
  • the annular space created between the two of the tubular elements 1, 2 is occupied by a thermoplastic sleeve 3 comprising a conductive element 5 in the form of a ring.
  • the thickness of the conductive element 5 may be of the order of 1 mm.
  • the thickness of the thermoplastic sleeve 3 may be 2 mm.
  • the internal diameter of the thermoplastic sleeve 3 may be of the order of 40 mm and its length of the order of 15 mm.
  • the conductive element 5 is heated by induction, thereby causing a fusion of the thermoplastic material which constitutes the sleeve 3 and of the adjacent walls of the tubular elements 1, 2. After cooling, the assembly forms a homogeneous block of thermoplastic material, thus ensuring the fixing of the tubular elements 1,2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
EP03732162A 2002-07-08 2003-07-07 Anordnung zum verbinden zweier rohrförmiger thermoplastischer elemente Withdrawn EP1520133A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH11952002 2002-07-08
CH119502 2002-07-08
PCT/CH2003/000444 WO2004005789A1 (fr) 2002-07-08 2003-07-07 Ensemble pour la connexion de deux elements tubulaires thermoplastiques

Publications (1)

Publication Number Publication Date
EP1520133A1 true EP1520133A1 (de) 2005-04-06

Family

ID=30005586

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03732162A Withdrawn EP1520133A1 (de) 2002-07-08 2003-07-07 Anordnung zum verbinden zweier rohrförmiger thermoplastischer elemente

Country Status (5)

Country Link
US (1) US20050126702A1 (de)
EP (1) EP1520133A1 (de)
JP (1) JP2005538313A (de)
AU (1) AU2003238327A1 (de)
WO (1) WO2004005789A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2917481B1 (fr) * 2007-06-15 2010-12-03 Nobel Plastiques Procede de liaison de tubes par soudage magnetique
LU100865B1 (en) * 2018-07-03 2020-01-07 Aliaxis R&D Sas Coupling element, coupling assembly with such a coupling element and method of coupling a first substrate to such a coupling element
CA224128S (en) 2023-09-12 2025-02-19 Ipex Tech Inc Pipe cap

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8400816A (nl) * 1984-03-14 1985-10-01 Wavin Bv Werkwijze voor het vervaardigen van buismoffen en -fittings, alsmede inrichting voor het uitvoeren van deze werkwijze en buismof of -fitting vervaardigd volgens deze werkwijze.
US5286952A (en) * 1987-06-11 1994-02-15 Raychem Corporation Methods and devices which make use of conductive polymers to join articles
JPH0735879B2 (ja) * 1990-07-16 1995-04-19 特殊工業株式会社 ジョイント用被覆発熱素線及びジョイント用スリーブと管継手
DE19611883C2 (de) * 1996-03-26 1998-04-16 Bauku Troisdorfer Bau Und Kuns Rohr, insbesondere Wickelrohr
US5919387A (en) * 1996-04-03 1999-07-06 The United States Of America As Represented By The United States National Aeronautics And Space Administration Inductive systems for bonding and joining pipes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004005789A1 *

Also Published As

Publication number Publication date
WO2004005789A1 (fr) 2004-01-15
US20050126702A1 (en) 2005-06-16
JP2005538313A (ja) 2005-12-15
AU2003238327A1 (en) 2004-01-23

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