CS119092A3 - Polyolefin coupling and the use thereof for joining polyolefin tubes - Google Patents

Polyolefin coupling and the use thereof for joining polyolefin tubes Download PDF

Info

Publication number
CS119092A3
CS119092A3 CS921190A CS119092A CS119092A3 CS 119092 A3 CS119092 A3 CS 119092A3 CS 921190 A CS921190 A CS 921190A CS 119092 A CS119092 A CS 119092A CS 119092 A3 CS119092 A3 CS 119092A3
Authority
CS
Czechoslovakia
Prior art keywords
polyolefin
coupling
tubes
heating
coupling according
Prior art date
Application number
CS921190A
Other languages
English (en)
Inventor
Trevor George Stafford
Lindsay Ewing
Original Assignee
British Gas Plc
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 British Gas Plc filed Critical British Gas Plc
Publication of CS119092A3 publication Critical patent/CS119092A3/cs
Publication of CZ279082B6 publication Critical patent/CZ279082B6/cs

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—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
    • B29C66/737—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 state of the material of the parts to be joined
    • B29C66/7373—Joining soiled or oxidised materials
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0078—Measures or configurations for obtaining anchoring effects in the contact areas between layers
    • B29C37/0082—Mechanical anchoring
    • 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • B29C61/0608—Making preforms having internal stresses, e.g. plastic memory characterised by the configuration or structure of the preforms
    • 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • B29C61/0608—Making preforms having internal stresses, e.g. plastic memory characterised by the configuration or structure of the preforms
    • B29C61/0625—Preforms comprising incorporated or associated heating means
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1464—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface making use of several radiators
    • B29C65/1467—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface making use of several radiators at the same time, i.e. simultaneous welding
    • 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
    • B29C65/22—Heated wire resistive ribbon, resistive band or resistive strip
    • B29C65/221—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip
    • B29C65/222—Heated wire resistive ribbon, resistive band or resistive strip characterised by the type of heated wire, resistive ribbon, band or strip comprising at least a single heated wire
    • 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"
    • B29C65/3404—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" characterised by the type of heated elements which remain in the joint
    • B29C65/342—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" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • 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"
    • B29C65/3404—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" characterised by the type of heated elements which remain in the joint
    • B29C65/342—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" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B29C65/3432—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" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding comprising several wires, e.g. in the form of several independent windings
    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/58—Snap connection
    • 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
    • B29C65/66—Joining 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
    • B29C65/68—Joining 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 using auxiliary shrinkable elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—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
    • B29C66/341—Measures for intermixing the material of the joint interlayer
    • 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
    • B29C66/52297—Joining tubular articles involving the use of a socket said socket comprising slip-off prevention means
    • 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
    • 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
    • B29C66/737—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 state of the material of the parts to be joined
    • B29C66/7375—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 state of the material of the parts to be joined uncured, partially cured or fully cured
    • B29C66/73751—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 state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being uncured, i.e. non cross-linked, non vulcanized
    • 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
    • B29C66/737—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 state of the material of the parts to be joined
    • B29C66/7375—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 state of the material of the parts to be joined uncured, partially cured or fully cured
    • B29C66/73755—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 state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being fully cured, i.e. fully cross-linked, fully vulcanized
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8187—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the electrical insulating constructional aspects
    • B29C66/81871—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the electrical insulating constructional aspects of the welding jaws
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91211—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods
    • B29C66/91218—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods using colour change, e.g. using separate colour indicators
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91221—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the parts 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring 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
    • B29C66/9141—Measuring 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
    • B29C66/91411—Measuring 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
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring 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
    • B29C66/9161—Measuring 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
    • B29C66/91641—Measuring 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 the heat or the thermal flux being non-constant over time
    • 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
    • F16L13/00—Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints
    • F16L13/004—Shrunk pipe-joints
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B29C65/1409—Visible light radiation
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B29C65/1412—Infrared [IR] radiation
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1435—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. transmission welding
    • 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"
    • B29C65/3472—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" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—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" characterised by the composition of the heated elements which remain in the joint being metallic
    • 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
    • B29C65/38—Impulse heating
    • 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
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • 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
    • B29C66/7394—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 thermoset
    • B29C66/73941—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 thermoset characterised by the materials of both parts being thermosets
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring 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
    • B29C66/9161—Measuring 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
    • B29C66/91641—Measuring 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 the heat or the thermal flux being non-constant over time
    • B29C66/91643—Measuring 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 the heat or the thermal flux being non-constant over time following a heat-time profile
    • B29C66/91645—Measuring 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 the heat or the thermal flux being non-constant over time following a heat-time profile by steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/24—Condition, form or state of moulded material or of the material to be shaped crosslinked or vulcanised
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/24—Pipe joints or couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/775—Toothed articles
    • B29L2031/7754—Worms

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Description

I “0 — — - t dO 1 i r ! > ° - ' ·—’ i ! O χ··3 i ra ' X> i ___, (_ z 6 m >· b í r~-c m ř 1 N ř t
Polyolefinová spojka anových trub její použití pro spojování polyolefi-
Oblast techniky
Vynález se týká polyolefinových spojek pro spojovánípolyolefinových trub a spojování polyolefinových trub těmitospojkami.
Dosavadní stav techniky
Známých spojek se v široké míre používá pro spojovánítrub až do průměru 355 mm. Takové spojky jsou hrdlového typua mají vnitřní topné články. Topný článek natavuje vnitřnípovrch spojky a protilehlé povrchy trub. Protilehlé povrchyjsou od sebe vzdáleny maximálně 1 až 2 mm v případě menšíchspojek, avšak rozměr 355 mm vyžaduje hydrulický přípravek nasestavení spojky a trub. V takovém případě je mezera praktickynulová. Zatavené povrchy spolu splynou a vytvoří se svarovýspoj mezi každou troubou a spojkou. Účelem vynálezu je poskytnout spojku, které lze použítspeciálně i když nikoliv výlučně, ke spojování trub velkéhoprůměru, například trub o průměru 500 mm nebo větším. V americkém patentovém spise číslo 4 775501 /RaychemCorporation/ a v evropském patentovém spise číslo O 19759/Raychem Corporation/ se popisuje způsob spojování polyethy-lenových trub spojkou, tvořenou zesilovaným polymerem, obsa-hujícím částicové vodivé plnidlo. Spojka je roztažena pod je-jí teplotou tavení /120 °C/. K regeneraci pro spojení s trou-bami se spojka zahřívá vedením elektrického proudu spojkouaž dojde k jejímu smrštění na spojované trouby. Spojka a trou-by se spojují tavným spojem. Ve dvou příkladech se uvádějípolyethylenové trouby o vnějším průměru 21 mm. Spojka dosa-huje své smršťovací teploty ve 30 až 45 sekundách a proud senechával procházet spojkou ještě po dobu další jedné minuty.
Konce trubek vykázaly smrštění a jejich povrchy byly na-taveny. Výslechem je podstatné snížení světlosti trub a trubek V jediném příkladu v evropském patentovém spise číslo0 197759 mají trouby vnější průměr 21,3 mm a tloušťku stěny 2,8 mm. Podmínky ohřevu jsou stejné jako podle amerického pa-tentového spisu číslo 4 775501» V uvedeném evropském patentovémspise nejsou žádné výkresy.
Spojky, uváděné v patentových spisech shora uvedených /Raychem Corporation/ musí být elektricky vodivé a aby se toho do-sáhlo, obsahuje materiál uhlíkaté částice v koncentraci, zaru-čující elektrickou vodivost. Je známo, že tak vysoký obsah uh-líkatých částic může způsobit narušení žádoucích mechanickýchvlastností základního polymeru.
Podstata vynálezu
Podstatou vynálezu jsou spojky z polymerního materiálu,které nejsou elektricky vodivé. Schopnost smršťovací paměti jeaktivována odděleně identifikovatelným zdrojem tepla, napřík-lad vedením z topného článku, vytvořeného odporovým drátem,nebo radiací optického nebo infračerveného zdroje.
Podle vynálezu sestává spojka ke spojování trub z dutéhotělesa s otevřeným koncem z nevodivého zesilovaného polyolefinukteré byle radiálně rozšířeno čili expandováno tak, že předzahříváním má spojka první nejmenší vnitřní průměr a po zahří-vání má spojka druhý nejmenší vnitřní průměr, který je menšínež první nejmenší vnitřní průměr.
Podle vynálezu je způsob spojování trub z polyolefinovéhomateriálu navzájem založen na tom, že se uspořádají k sobě svý-mi konci a spojka se smrští a protilehlý vnitřní povrch spojkya vnější koncové- povrchy trub se zahřejí na teplotu svařování,přičemž spojka se zahřeje světelnou nebo infračervenou radiacíz prostředků uspořádaných po obvodě kolem spojky.
Spojka může mít topný článek nebo topné články, jimiž mů-že procházet elektrický proud. vestliže se použije spojky tohoto typu, je způsob stejný - 3 - jako sbore uvedeno, spojka je však zahřívána topnými články.
Provedení podle vynálezu je podrobně objasněno na praktic-kých příkladech provedení a pomocí připojených obrázků, ba obr.1 je svislý řez horní polovinou spojky podle prvního provedení,jež obklopuje konce dvou spojovaných trub. Na obr. 2 je zvět-šený řez z obr. 1 . Ks obr. 3 je svislý řez horní polovinouprovedeného spoje s použitím spojky podle obr. 1 . Ká obr, 4je svislý řez horní polovinou modifikované spojky. Na obr. 5 a6 je příčný a podélný řez druhého provedení spojky, uspořáda-né kolem dvou trub v poloze jejich spojování. Na obr, 7 je řez,odpovídající obr. 2, znázorňující provedený spoj za použitíspojky, znázorněné na obr. 5 e 6. Následující příklady objasňují vynález na případu spojekz polyethylenu, vynález je však použitelný i pro jiné polyole-finy, například pro polypropylen a pro polybutylen. Příklady provedení vynálezu
Spojka podle prvního provedení podle vynálezu je zhotovenaze 100 mm dlouhé trouby ze zesilovaného polyethylenu společnos-ti Wirsbo Bruks AB, Virsbo, Švédsklo, s vnitřním průměrem jeno málo menším než vnější průměr 90 mm trouby z nezesilovanéhopolyethylenu, určené ke spojování. Vnější průměr spojky je 110mm a tloušlka štěny 10 mm. Do vnějšího i vnitřního povrchu jevyříznut šroubovicový závit, aby byly povrchy vroubkované.Stoupání závitu je 2 mm a hloubka vroubku je rovněž 2 mm.
Na vnější povrch je navinut pocínovaný měděný drát s cel-kovým odporem 2,25 ohm. Ten tvoří topný článek. Článek možnoprovést různými /neznázorněnými/ způsoby. Například drát můžebýt navinut ve šroubové drážce na vnější straně velmi tenkéhoválcového dutého člene z polyethylenu, takže závity vinutí jsouvelmi těsně uspořádány u vnitřního povrchu člene. Po navinutičlánku může být kolem vnějšího povrchu člene vytvořen vstřiko-váním vnější plášl. Tento způsob zhotovování spojek je popsánav britském patentovém spise číslo 2 09055S B. řodle jiného provedení je topnv článek ve šroubové drážce, vyříznuté do vnitřního povrchu úseku trouby. Vnější povrch ne-ní závitem opstřen. Při dalším způsobu provedení, který jezvlášt vhodný, pokud jde o tlustší spojky, je použito ovoutopných článků, navinutých jak na vnějším, tak ne. vnitřním povr-chu spojky. Úsek trouby se dále roztáhne /expanduje/ k vytvoření spoj-ky. X tomu se používá například hydraulicky ovládaného expan-deru, typu dodávaného společností Pipe Lquipment Limited tak,aby vůle mezi vnitřním nejmenším průměrem trouby a vnějším po-vrchem polyethylenových trub, určených ke spojování, byla 2 až3 mm. Rozšíření čili expanze se může provádět za teploty okolínebo za zvýšené teploty přibližně až do 120 °C. Po rozšíření zazvýšené teploty se spojka rychle ochladí například ve vodě. Al-ternativně může být spojka rozšířena například použitím expan-deru typu dodávaného společnosti Jointkit Limited.
Na obr. 1 a 2 je spojka 10, sestavená se dvěma polyethyle-novými troubami 1 2, 14, uspořádanými konci k sobě k jejich vzá-jemnému spojení. Šroubový vnější závit 16 nese topný článek 18,navinutý na vroubkovaném vnějším povrchu. Vnitřní závit 20 jetaké znázorněn s mezerou 22 mezi vnitřním nejmenším průměremspojky a vnějším povrchem trouby 1 4. K aktivaci topného článku18 se používá elektrického proudu ze droje o napětí 40 V. Pou-žívá se časovaných pulzů a teplota vnějšího povrchu jednéz trub 12, 14 je sledována termočlánky. Pulzování brání překro-čení vnější teploty spojky 260 °C. Vnější povrch trouby trvalevzrůstá a když se dosáhne 140 °C, proud se vypne. Po vychladnu-tí se spojka a trouby rozřežou za účelem vyzkoušení stavu sva-rového spoje.
Trouby 12, 14, spojené spojkou 10 se podrobují zkoušce zapodmínek " zkoušky při 80 °C". To znamená, že vnitřně působíhydrostatický tlak k vyvození napětí ve stěně trouby 4 Lípa,přičemž sestava je ponořena ve .vodě, udržované na teolotě 80°C. Pro troubu SDR11 je tento hydrostatický tlak 0,8 ftiPa. V sou-časné době prodělává sestava 650 hodin zkušebních podmínek bez úniku. Celá zkouška byla úspěšně ukončena po 1000 hodinách bezúniku.
Jsk patrno z obr. 3, smrští se spojka 10 na troubě 12, 14 úplně, takže se vymezí původní vůle 22 a vroubkovaný vnitř-ní povrch spojky 1Q vnikne do původních vnějších povrchů trub1 2, 14, čímž mechanicky utěsní spojované povrchy. V místech 24, 26, 28 a 30 je patrno určité napěchování stěn trub 1 2, 1 4. Před svařením se povrchy trub neupravují, takže původnívnější povrchy nesou původní oxidovanou vrstvu. Spojka 10 ús-pěšně touto oxidovanou vrstvou proniká v průběhu vytváření tav-ného svarového spoje. Při modifikaci mohou být vroubky na vnitřním povrchu vy-puštěny a konce trubek musí být potom obvyklým způsobem očiš-těny dříve než jsou vytvářeny svarové spoje mezi protilehlýmiválcovými povrchy trub a spojky. ha obr. 4 je modifikovaný tvar spojky 10. Podle tohoto pro-vedení je kromě topného článku 18, navinutého na vnějším povr-chu, druhý topný článek, navinutý na vnitřním povrchu a drženýv poloze vnitřními zoubky 20 vnitřního závitu. Tohoto druhéhotopného článku 32 se používá tehdy, když tlouštka spojky by ji- ; nak vyžadovala nadměrné teplotní 'gradienty ve stěně spojky adlouhodobý ohřev, než by došlo k prohřátí vnitřního povrchu nateplotu svařování. í
Ohřevem stěny z obou stran je spojka vystavena rychlejšímu í ohřevu a rychleji získá svařovací teplotu na vnitřním povrchu. í U spojky o průměru 500 mm, kde je například standardní rozměro- | vý poměr 17, je tloušťka stěny přibližně 30 mm a u SDR11 je £ tloušťka stěny přibližně 46 mm. U spojek jakéhokoliv rozměru £ o tloušťce řekněme 30 mm a větší je výhodné použití dyou top- * i ných článků. |
Podle další neznázorněné modifikace může mít spojka pouze § jeden topný článek, uspořádaný podobně jako právě popsaný top- | ný článek 32. · i
Provedení spojky 40., znázorněné na obr. 5 až 7, je podobné ž jako v případě spojky 10 s tou. výjimkou, že šroubová drážka jevyříznuta do vnějšího povrchu bez aplikace topného článku napovrchu. - 6 - U trub 1 2, 1 4, sestavených se spojkou 40 podle obr. 5 3 6,je spojka 40 zahřívána radiací osmi 150 W lamp 42, zabudovanýchv reflektorech.
Teplota spojky a teplota vnějšího povrchu trouby se sledu-jí podobně, jako shora uvedeno. Fři vypnutí lamp teplota vnějšího povrchu trouby je trvale 140 °C. Spojka 40 se stane optickyčirou, jakmile dosáhne své vlastní teploty tavení, což umožnílepší pronikáni světla k povrchům trub a přestup tepla zářením účinnější. Na obr. 7 je dokončený spoj mezi dvěma troubami1 2 a 1 4. Popsané obr. nejsou v měřítku. Zesítovaný polyethylenmá vlastnost dosahování rozmezí tavení krystalů polyethylenu beztečení. Jeho molekulární struktura je trojrozměrnou sítí,která určuje chování kaučukovité pevné látky nad teplotou její-ho tavení. V této fázi se vytvářejí svarové spoje s nezesilova-ným povrchem polyethylenu.
Sxpanze zesítované spojky propůjčuje spojce charakteristi-ku smršťování teplem, která může zlepšovat kvalitu svarovýchsoojů tím, že je vynechána nutnost oškrabání povrchu trub předtavením. Taková úprava povrchu je důležitou avšak časově nároč-nou operací při běžném elektrickém tavení. Tepelně smrštěná spojka ze zesilovaného polyolefinu má vroubkovaný vnitřní povrch,který netaví povrch trouby a pronikne oxidovanou vnější slupkoutrouby a vytvoří svarový spoj s materiálem ležícím pod toutoslupkou.
Vynález je použitelný pro spojky větších rozměrů, napříkladpro spojky o průměru 500 mm a pro větší spojky. Takové spojkyby mohly být z běžné polyethylenové trouby, která se ozáří papr-ky gama k dosažení vhodné míry zesíťování. Alternativně se mohouspojky speciálně lisovat použitím polyethylenu, vhodného k liso-vání a zesilovány chemicky /například ve formě/ k získání koneč-né zesítěné spojky.
Ohřevu se dosahuje pomocí elektrických topných článků nebopomocí lamp nebo infračervených ohřívačů. Zkrácení doby ohřevuse dá dosáhnout předehřátím spojky /například na 100 °C/ zapnu-tím topného článku nebo topných článků nebo zahřátím spojkv v pe
Cl r.aoříklad před na ?sazemm na troubv. - 7 -
Průmyslová využitelnost rolyolefinová spojka vhodné pro spojování polyolefinových truc.
.-I

Claims (13)

& 1
1 . Polyolefinová spojka pro spojování trub, vyzna- čující se tím, že sestává z dutého tělesa s o-tevřeným koncem z nevodivého zesilovaného polyolefinovéhomateriálu, který je radiálně roztažen - expandován - při-čemž před obrátím má spojka první nejmenší vnitřní průměra po ohřátí má druhý nejmenší vnitřní průměr menší nežprvní nejmenší vnitřní průměr.
2. Polyolefinová spojka podle nároku 1,vyznaču- jící se tím, že vnitřní povrch tělesa je vroubekovaný.
3. Polyolefinová spojka podle nároku 1 nebo 2, vy z n a čující se tím, že májtopný článek nebo topnéčlánky k elektrickému ohřevu.
4. Polyolefinová spojka podle nároku 3> vyzna-čující se tím, že topný článek je ve šroubovédrážce ve vnitřním povrchu spojky.
5. Polyolefinová s-ojka podle nároku 3, v y z n a -čující se tím, že má dva topné články, jedenve šroubové drážce na vnějším povrchu a druhý ve šroubovédrážce na vnitřním povrchu.
6. Způsobnavzájem, v yby uspořádajíoodle nároku 1 spojování trub z polyolefinového materiáluznačující se tím, že se trou-svými konci k sobě a polyolefinová spojkanebo 2, která přivrácené konce trub na vněj- ší straně přemostuje, se zahřeje až do svého smrštění avnější povrchy trub se zahřejí na teplotu svařování, přičemžse spojka zahřívá světelným nebo infračerveným zářením zezdroje, umístěného kolem obvodu spojky.
7. Způsob navzájem, v y spojování trubznačujíc z polyolefinového materiálu í s e tím ze se - 9 - trouby uspořádají svými konci k sobě a polyolefinová spojka podle nároku 3 nebo 4, která přivrácené konce trub na vněj- ší stran·' přemosťuje, se smrští zapojením elektrického proudu do ohřívacích článků a vnitřní povrch spojky a protilehlé vnější povrchy trub se zahřejí na svařovací teplotu. s.
Polyolefinová spojka podle nároku 1 v provedení v pod- statě objasněném na obr. 1 a ž 3.
9. Polyolefinová spojka podle nároku 1 v provedení v pod- statě objasněném na obr. 4.
10. Polyolefinová spojka podle nároku 1 v provedení v pod- statě objasněném na obr. ?, 6 a 7.
11. Způsob podle nároku 6 v podstatě popsaný na obr. 5 sš 7.
12. Způsob podle nároku 7 v podstatě popsaný se zřetelemna obr. 1 a 2.
13. Způsob podle nároku 12,vyznačující setím, že se používá spojky podle obr. 4«
CS921190A 1991-04-24 1992-04-17 Polyolefin coupling and the use thereof for joining polyolefin tubes CZ279082B6 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9109123A GB2255041B (en) 1991-04-24 1991-04-24 Polyolefin coupler for joining polyolefin pipes

Publications (2)

Publication Number Publication Date
CS119092A3 true CS119092A3 (en) 1992-11-18
CZ279082B6 CZ279082B6 (en) 1994-12-15

Family

ID=10694077

Country Status (14)

Country Link
US (1) US5328210A (cs)
EP (1) EP0510803B1 (cs)
JP (1) JP2770643B2 (cs)
CA (1) CA2066919C (cs)
CZ (1) CZ279082B6 (cs)
DE (2) DE69216279D1 (cs)
ES (1) ES2099208T3 (cs)
GB (1) GB2255041B (cs)
GR (1) GR3023020T3 (cs)
HU (1) HU214065B (cs)
PL (1) PL169226B1 (cs)
SK (1) SK278475B6 (cs)
TR (1) TR28690A (cs)
YU (1) YU48662B (cs)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2284179A (en) * 1993-11-30 1995-05-31 Uponor Aldyl Ltd Electrofusion coupling element
US6403181B1 (en) 1995-07-03 2002-06-11 Mobil Oil Corporation Premium pipe resins
GB2304073B (en) * 1995-08-04 1999-06-16 Uponor Ltd Electrofusion element
ATE211234T1 (de) * 1995-08-19 2002-01-15 Ruppert Hans Peter Verbindungseinrichtung zum verbinden von rohren
US5820720A (en) * 1996-05-28 1998-10-13 Campbell; Steve Method of and apparatus for electrofusion coupling of thermoplastic pipes
US6521072B1 (en) 1996-05-28 2003-02-18 C&S Intellectual Properties, Llc Method of coupling profile wall thermoplastic pipes
US6131954A (en) * 1996-05-28 2000-10-17 Campbell; Steve Weldable couple for electrofusion coupling of profile wall thermoplastic pipes without a separate coupler
PL329518A1 (en) * 1997-02-18 1999-03-29 Uponor Aldyl Co Method of thermally jointing plastic components and union piece therefor
WO1999013256A1 (en) * 1997-09-09 1999-03-18 Moshe Kotzer Plastic pipe joints and formation thereof
GB2334914A (en) * 1998-03-06 1999-09-08 Draftex Ind Ltd Securing materials together
US6045033A (en) * 1998-04-02 2000-04-04 Tri-Clover, Inc. Pipe connection and method
GB0026547D0 (en) * 2000-10-31 2000-12-13 Kenworthy David M A Electrofusible units
KR100417032B1 (ko) * 2001-03-14 2004-02-05 주식회사 테크소닉 수지파이프의 접합방법
CA2351698A1 (en) * 2001-06-26 2002-12-26 Green-Line Products Inc. Radiant energy device for shrinking a thin film
RU2235188C2 (ru) * 2002-08-28 2004-08-27 Научно-исследовательское учреждение Институт физики прочности и материаловедения СО РАН Способ ремонта внутренней поверхности труб и способ изготовления бандажа для ремонта внутренней поверхности труб
US20060202471A1 (en) * 2005-03-07 2006-09-14 Weisbond Bradley K Electro-fusion joining system for thermoplastic piping systems
JP5812486B2 (ja) * 2011-10-06 2015-11-11 国立研究開発法人海洋研究開発機構 溶断装置
CN103112161B (zh) * 2013-01-06 2015-07-01 河北电力装备有限公司 铜排套装热塑管加工工艺
CN104110539B (zh) * 2013-07-22 2016-11-23 广东美的制冷设备有限公司 空调器及防拆卸接管装置
FR3018333A1 (cs) 2014-03-10 2015-09-11 Saint Gobain Performance Plast
ES2776148T3 (es) * 2014-04-04 2020-07-29 Triopipe Geotherm Ab Dispositivo de soldadura intermedio
EP3148292B1 (en) * 2015-09-28 2020-08-12 Frans Nooren Afdichtingssystemen B.V. Heating apparatus and method for heating a tubular body

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2027962A (en) * 1933-03-03 1936-01-14 Nat Carbon Co Inc Production of articles from plastic compositions
NL130678C (cs) * 1960-07-15 1900-01-01
US3320355A (en) * 1965-09-07 1967-05-16 Aylwin R Booker Heat shrinkable connector for electrical wire
NL6601024A (cs) * 1966-01-27 1967-07-28
CH544906A (de) * 1971-11-12 1974-01-15 Gerbert & Cie Elektrisch heizbare Schweissmuffe und Verfahren zu deren Herstellung
US3847183A (en) * 1972-11-22 1974-11-12 V Meyer Closure
NL175458C (nl) * 1973-03-14 1984-11-01 Sturm Werner Werkwijze voor het vervaardigen van een lasmof voor thermoplastische buizen.
US4198081A (en) * 1973-10-29 1980-04-15 Raychem Corporation Heat recoverable metallic coupling
FR2250950A1 (en) * 1973-11-08 1975-06-06 Picquet Andre Sleeve for joining air conditioning hose - foam lining is compressed by shrinkage of outer heated coil
SE390802B (sv) * 1973-11-27 1977-01-24 Atomenergi Ab Forfarande for sammanfogning av detaljer av fornetade polymerer
US4070044A (en) * 1976-01-22 1978-01-24 Phillips Petroleum Company Polymer pipe connection and method to make it
CH645449A5 (de) * 1980-03-04 1984-09-28 Von Roll Ag Elektrisch schweissbare muffe zum verbinden von leitungselementen.
US4419304A (en) * 1980-07-15 1983-12-06 Western Electric Company, Inc. Method for forming seals with heat shrinkable materials
GB2090558B (en) * 1981-01-06 1984-08-30 British Gas Corp Method of manufacture of a heat sealable fitting and fitting made by such method
US4355717A (en) * 1982-01-07 1982-10-26 The Mead Corporation Wraparound article carrier with adjustable girth
DE3226575C1 (de) * 1982-07-16 1984-03-01 Friedrichsfeld Gmbh, Steinzeug- Und Kunststoffwerke, 6800 Mannheim Vorrichtung zum Verbinden
EP0102919A3 (de) * 1982-08-30 1985-05-22 HUBER & SUHNER AG KABEL-, KAUTSCHUK-, KUNSTSTOFF-WERKE Verfahren zum Verbinden von Rohren und danach hergestellte Rohrverbindung
US4626308A (en) * 1983-02-18 1986-12-02 The Victaulic Company Plc Method of making welded pipe joints
NL8301780A (nl) * 1983-05-19 1984-12-17 Electrochem Energieconversie Poreuze elektrode.
US4498618A (en) * 1983-08-12 1985-02-12 Federal Paper Board Co., Inc. Lock arrangement between two carton closure panels
DE3586726T2 (de) * 1984-04-04 1993-05-06 Raychem Corp Verfahren zum verbinden von substraten.
US4636272A (en) * 1985-02-19 1987-01-13 Cordis Corporation Process for thermally bonding plastic tubes
JPS61192742A (ja) * 1985-02-22 1986-08-27 Shin Kobe Electric Mach Co Ltd 不飽和ポリエステル系樹脂積層板の製造法
JPH0664929B2 (ja) * 1985-04-02 1994-08-22 レイケム・コ−ポレイシヨン 電気デバイス
JPS6210102U (cs) * 1985-07-04 1987-01-22
DE3540193C1 (de) * 1985-11-13 1987-04-23 Friedrichsfeld Gmbh Elektro-Schweissfitting oder Schweissmuffe
US4650226A (en) * 1986-03-31 1987-03-17 Joy Manufacturing Company Holddown screw
EP0251482A3 (en) * 1986-05-27 1988-07-27 RAYCHEM CORPORATION (a California corporation) Heat-recoverable coupler
BR8707487A (pt) * 1986-10-14 1988-12-06 Manville Corp Transportador de envoltorio para garrafas
US4927184A (en) * 1986-11-07 1990-05-22 Atochem Pipes base on polyolefin resin for manufacturing pipelines and couplings for assembling them
ES2047794T3 (es) * 1987-01-14 1994-03-01 Mead Corp Dispositivo de enclavamiento de paneles.
GB8805911D0 (en) * 1988-03-12 1988-04-13 Victaulic Plc Process for jointing of polyolefin bodies
GB8926294D0 (en) * 1989-11-21 1990-01-10 British Gas Plc Method of jointing hollow members by fusion
US5125690A (en) * 1989-12-15 1992-06-30 Metcal, Inc. Pipe joining system and method

Also Published As

Publication number Publication date
CZ279082B6 (en) 1994-12-15
ES2099208T3 (es) 1997-05-16
JP2770643B2 (ja) 1998-07-02
GR3023020T3 (en) 1997-07-30
HU9201344D0 (en) 1992-07-28
SK278475B6 (en) 1997-07-09
GB2255041B (en) 1995-04-19
DE69216279T4 (de) 1998-03-05
PL169226B1 (pl) 1996-06-28
EP0510803B1 (en) 1997-01-02
JPH05133494A (ja) 1993-05-28
GB9109123D0 (en) 1991-06-12
CA2066919A1 (en) 1992-10-25
YU38692A (sh) 1995-10-03
TR28690A (tr) 1997-01-08
YU48662B (sh) 1999-06-15
US5328210A (en) 1994-07-12
HUT64614A (en) 1994-01-28
DE69216279D1 (de) 1997-02-13
GB2255041A (en) 1992-10-28
CA2066919C (en) 1997-05-06
HU214065B (en) 1997-12-29
EP0510803A3 (en) 1993-08-18
EP0510803A2 (en) 1992-10-28
DE69216279T2 (de) 1997-08-21
PL294313A1 (cs) 1993-02-08

Similar Documents

Publication Publication Date Title
CS119092A3 (en) Polyolefin coupling and the use thereof for joining polyolefin tubes
US4842305A (en) Pipe joint connecting plastic pipes and process of making such joint
JP2961443B2 (ja) 加熱されると溶融するプラスチック製の配管部材を融接する方法およびそれに使用する連結スリーブ
EP0360811A1 (en) WELDING CONNECTOR DEVICE.
EP0918619B1 (en) Electrofusion fitting
EP0333379B1 (en) Process for the jointing of polyolefin bodies
FR2516439A1 (fr) Procede de soudage electrique de pieces en matiere plastique, en particulier pour canalisations de fluides et manchons de raccordement pour de telles canalisations
CN87104983A (zh) 带有用电焊连结用的整体型加热电阻的聚乙烯管
US5296073A (en) Method of forming a welded joint between polyolefinic members
GB2314597A (en) Electrofusion fitting for a plastics pipe with gripping means
JP3261531B2 (ja) 中空プラスチック部材の溶融接合方法
EP0251482A2 (en) Heat-recoverable coupler
US4931116A (en) Heat-recoverable coupler
KR200319044Y1 (ko) 합성수지제 전기융착 접합시트
CN218378269U (zh) 克拉管管道连接结构
EP0610496A1 (en) A process for the joining of crosslinked polyolefin bodies
GB2308092A (en) Welding plastics sheets
KR200194973Y1 (ko) 열융착 관연결구
KR200322658Y1 (ko) 관 이음구
EP0730118B1 (en) Weldable pipe fittings and methods of forming the same
JPH02253093A (ja) エレクトロフュージョン継手
JPH02309091A (ja) 合成樹脂管継手
JPH08238677A (ja) 樹脂シートの接合方法
JPH06213386A (ja) 電気融着式プラスチック管継手

Legal Events

Date Code Title Description
IF00 In force as of 2000-06-30 in czech republic
MM4A Patent lapsed due to non-payment of fee

Effective date: 20030417