WO1994013457A3 - Joint, procede de fixation d'un joint et procede de fixation de composants de joint - Google Patents

Joint, procede de fixation d'un joint et procede de fixation de composants de joint Download PDF

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Publication number
WO1994013457A3
WO1994013457A3 PCT/GB1993/002509 GB9302509W WO9413457A3 WO 1994013457 A3 WO1994013457 A3 WO 1994013457A3 GB 9302509 W GB9302509 W GB 9302509W WO 9413457 A3 WO9413457 A3 WO 9413457A3
Authority
WO
WIPO (PCT)
Prior art keywords
joint
forming
induction member
socket
spigot
Prior art date
Application number
PCT/GB1993/002509
Other languages
English (en)
Other versions
WO1994013457A2 (fr
Inventor
Graeme Staniforth
Original Assignee
Hepworth Building Prod
Graeme Staniforth
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 Hepworth Building Prod, Graeme Staniforth filed Critical Hepworth Building Prod
Priority to AU56555/94A priority Critical patent/AU5655594A/en
Publication of WO1994013457A2 publication Critical patent/WO1994013457A2/fr
Publication of WO1994013457A3 publication Critical patent/WO1994013457A3/fr

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02Welded joints; Adhesive joints
    • F16L47/03Welded joints with an electrical resistance incorporated in the joint
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K13/00Welding by high-frequency current heating
    • B23K13/01Welding by high-frequency current heating by induction heating
    • B23K13/02Seam welding
    • B23K13/025Seam welding for tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining 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"
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining 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"
    • B29C65/36Joining 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
    • B29C65/3604Joining 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
    • B29C65/362Joining 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 comprising at least a single wire, e.g. in the form of a winding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/66Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5221Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/73General 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
    • B29C66/737General 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 state of the material of the parts to be joined
    • B29C66/7371General 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 state of the material of the parts to be joined oriented or heat-shrinkable
    • B29C66/73715General 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 state of the material of the parts to be joined oriented or heat-shrinkable heat-shrinkable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/91Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91411Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/91Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91651Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating
    • B29C66/91655Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating by controlling or regulating the current intensity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining 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"
    • B29C65/3472Joining 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" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476Joining 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" characterised by the composition of the heated elements which remain in the joint being metallic
    • B29C65/348Joining 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" characterised by the composition of the heated elements which remain in the joint being metallic with a polymer coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining 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"
    • B29C65/36Joining 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
    • B29C65/3668Joining 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 means for supplying heat to said heated elements which remain in the join, e.g. special induction coils
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining 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"
    • B29C65/36Joining 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
    • B29C65/3672Joining 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
    • B29C65/3676Joining 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/71General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/94Measuring or controlling the joining process by measuring or controlling the time

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

On peut souder un manchon (22) et une douille (20) en induisant un courant dans un élément d'induction (12) inséré dans la région de sondage. La température de l'élément d'induction (12) s'élève jusqu'à ce qu'elle atteigne la tempéature de Curie où elle cesse de monter. L'élément d'induction (12) peut être inséré dans le manchon (22) ou dans la douille (20), ou dans les deux à la fois, ou dans un collier (10) séparé, intercalé entre les deux. Un dispositif de soudage (3) permettant d'induire le courant dans l'élément d'induction peut se présenter sous la forme d'un collier de serrage afin de, simultanément, induire le courant et serrer la douille (20) sur le manchon (22). Un procédé de fabrication d'une douille (20) est utilisé pour l'extrusion et consiste à dilater l'extrémité d'un tuyau et en provoquer le resserrement sur un collier (10) comprenant un élément d'induction (12).
PCT/GB1993/002509 1992-12-08 1993-12-08 Joint, procede de fixation d'un joint et procede de fixation de composants de joint WO1994013457A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU56555/94A AU5655594A (en) 1992-12-08 1993-12-08 Joint, method of forming a joint and method of forming joint components

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9225617A GB9225617D0 (en) 1992-12-08 1992-12-08 Joint and method of forming a joint
GB9225617.1 1992-12-08

Publications (2)

Publication Number Publication Date
WO1994013457A2 WO1994013457A2 (fr) 1994-06-23
WO1994013457A3 true WO1994013457A3 (fr) 1994-09-15

Family

ID=10726282

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1993/002509 WO1994013457A2 (fr) 1992-12-08 1993-12-08 Joint, procede de fixation d'un joint et procede de fixation de composants de joint

Country Status (3)

Country Link
AU (1) AU5655594A (fr)
GB (2) GB9225617D0 (fr)
WO (1) WO1994013457A2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995016557A2 (fr) * 1993-12-15 1995-06-22 Tokushu, Kogyo Kabushikigaisha Appareil permettant une fixation par electrofusion
US5786575A (en) * 1995-12-20 1998-07-28 Gas Research Institute Wrap tool for magnetic field-responsive heat-fusible pipe couplings
GB2325501A (en) * 1997-05-22 1998-11-25 Uponor Ltd Heat fusion fitting
ES2232324B1 (es) * 2005-02-11 2006-08-01 Josep Tomas Monfort Marti Dispositivo inductor.
US8424924B2 (en) 2008-09-19 2013-04-23 Tas Acquisition Co., Llc Electromagnetic bond welding of thermoplastic pipe distribution systems
JP6344949B2 (ja) * 2014-03-31 2018-06-20 積水化学工業株式会社 電気融着継手用クランプ
CN109317848A (zh) * 2018-11-12 2019-02-12 芜湖市星东塑胶模具制品有限公司 一种压缩机吸气消声器焊接装置
CN111379918B (zh) * 2020-03-18 2020-11-24 江苏芬茂新材料科技有限公司 一种电熔连接管件
CN113320739A (zh) * 2021-06-28 2021-08-31 中船重工海为郑州高科技有限公司 一种锚栓自动热缩生产线

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2739829A (en) * 1950-08-05 1956-03-27 American Viscose Corp Plastic pipe joint
US3554999A (en) * 1966-07-14 1971-01-12 Shaw Pipe Protection Ltd Method of making a shrink device
DE2617123A1 (de) * 1976-04-17 1977-10-27 Huebner Gummi & Kunststoff Verfahren zur herstellung eines strangfoermigen profils, vorrichtung zur durchfuehrung des verfahrens und strangfoermiges, gemaess dem verfahren hergestelltes profil
WO1980002124A1 (fr) * 1979-04-05 1980-10-16 Haxey Eng Ltd Procede pour connecter des tuyaux en matiere plastique thermodurcissable et leurs raccords
GB1582839A (en) * 1976-11-03 1981-01-14 Wavin Bv Pipe connections
US4256945A (en) * 1979-08-31 1981-03-17 Iris Associates Alternating current electrically resistive heating element having intrinsic temperature control
JPS5651324A (en) * 1979-10-04 1981-05-08 Sumitomo Electric Ind Ltd Shrinking method of thermoshrinking tube
EP0036963A1 (fr) * 1980-03-31 1981-10-07 Georg Fischer Aktiengesellschaft Manchon de soudage pour matières thermoplastiques, procédé et appareil pour sa fabrication
JPH0389094A (ja) * 1989-08-30 1991-04-15 Sumitomo Metal Ind Ltd 熱可塑性樹脂製管継手およびその製造方法
WO1992015182A1 (fr) * 1991-02-20 1992-09-03 Metcal, Inc. Systeme et procede pour joindre des materiaux en plastique
WO1993010962A1 (fr) * 1991-11-27 1993-06-10 Minnesota Mining And Manufacturing Company Procede et article de liaison par micro-ondes d'un tuyau en polyethylene

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0082842A1 (fr) * 1981-01-21 1983-07-06 PAYNE, Nicholas John Detection des variations de temperature dans un materiau
IT8648290A0 (it) * 1986-07-22 1986-07-22 Bonazelli Paolo Tubo in polietilene con sistema di termosaldatura a resistenza elettrica incorporato
DE69128124T2 (de) * 1990-03-30 1998-05-14 Kubota Kk Elektroschweissverbindung

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2739829A (en) * 1950-08-05 1956-03-27 American Viscose Corp Plastic pipe joint
US3554999A (en) * 1966-07-14 1971-01-12 Shaw Pipe Protection Ltd Method of making a shrink device
DE2617123A1 (de) * 1976-04-17 1977-10-27 Huebner Gummi & Kunststoff Verfahren zur herstellung eines strangfoermigen profils, vorrichtung zur durchfuehrung des verfahrens und strangfoermiges, gemaess dem verfahren hergestelltes profil
GB1582839A (en) * 1976-11-03 1981-01-14 Wavin Bv Pipe connections
WO1980002124A1 (fr) * 1979-04-05 1980-10-16 Haxey Eng Ltd Procede pour connecter des tuyaux en matiere plastique thermodurcissable et leurs raccords
US4256945A (en) * 1979-08-31 1981-03-17 Iris Associates Alternating current electrically resistive heating element having intrinsic temperature control
JPS5651324A (en) * 1979-10-04 1981-05-08 Sumitomo Electric Ind Ltd Shrinking method of thermoshrinking tube
EP0036963A1 (fr) * 1980-03-31 1981-10-07 Georg Fischer Aktiengesellschaft Manchon de soudage pour matières thermoplastiques, procédé et appareil pour sa fabrication
JPH0389094A (ja) * 1989-08-30 1991-04-15 Sumitomo Metal Ind Ltd 熱可塑性樹脂製管継手およびその製造方法
WO1992015182A1 (fr) * 1991-02-20 1992-09-03 Metcal, Inc. Systeme et procede pour joindre des materiaux en plastique
WO1993010962A1 (fr) * 1991-11-27 1993-06-10 Minnesota Mining And Manufacturing Company Procede et article de liaison par micro-ondes d'un tuyau en polyethylene

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 005, no. 108 (M - 078) 14 July 1981 (1981-07-14) *
PATENT ABSTRACTS OF JAPAN vol. 15, no. 264 (M - 1132) 4 July 1991 (1991-07-04) *

Also Published As

Publication number Publication date
WO1994013457A2 (fr) 1994-06-23
GB9325156D0 (en) 1994-02-09
GB2273260A (en) 1994-06-15
GB9225617D0 (en) 1993-01-27
AU5655594A (en) 1994-07-04

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