AT397992B - Verbindung für rohrleitungen aus harz auf vinylchloridbasis mit einem dichtungsring aus thermoplastischem kautschuk - Google Patents

Verbindung für rohrleitungen aus harz auf vinylchloridbasis mit einem dichtungsring aus thermoplastischem kautschuk Download PDF

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Publication number
AT397992B
AT397992B AT0061088A AT61088A AT397992B AT 397992 B AT397992 B AT 397992B AT 0061088 A AT0061088 A AT 0061088A AT 61088 A AT61088 A AT 61088A AT 397992 B AT397992 B AT 397992B
Authority
AT
Austria
Prior art keywords
connection
welding
sealing ring
thermoplastic rubber
fastened
Prior art date
Application number
AT0061088A
Other languages
English (en)
Other versions
ATA61088A (de
Original Assignee
Draka Polva Bv
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 Draka Polva Bv filed Critical Draka Polva Bv
Publication of ATA61088A publication Critical patent/ATA61088A/de
Application granted granted Critical
Publication of AT397992B publication Critical patent/AT397992B/de

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
    • F16L47/08—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
    • F16L47/10—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket the sealing rings being maintained in place by additional 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12441—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being a single wall
    • 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
    • B29C66/5224—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces
    • B29C66/52241—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces with two right angles, e.g. for making T-shaped pieces
    • 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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • 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
    • B29C66/61—Joining from or joining on the inside
    • B29C66/612—Making circumferential 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
    • B29C66/70—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
    • B29C66/731—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 intensive physical properties of the 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
    • B29C66/73753—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 partially cured, i.e. partially cross-linked, partially 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
    • 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
    • F16L17/00—Joints with packing adapted to sealing by fluid pressure
    • F16L17/02—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
    • F16L17/03—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket having annular axial lips
    • F16L17/032—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket having annular axial lips the sealing rings having only one lip
    • 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
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • 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
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B29C65/0672—Spin 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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"
    • 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
    • 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
    • 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
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • 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
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/08—PVDC, i.e. polyvinylidene chloride
    • 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
    • B29K2031/00—Use of polyvinylesters or derivatives thereof as moulding material
    • B29K2031/04—Polymers of vinyl acetate, e.g. PVAc, i.e. polyvinyl acetate
    • 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
    • B29K2105/0085—Copolymers
    • 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
    • B29K2105/0088—Blends of polymers
    • 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
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0046—Elastic
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

AT 397 992 B
Die vorliegende Erfindung betrifft eine Verbindung für Rohrleitungen aus Harz auf Vinylchloridbasis mit einem Dichtungsring aus thermoplastischem Kautschuk, der durch Schweißen in der Verbindung befestigt wird.
Es ist schon vorgeschlagen worden, Verbindungen für Rohrleitungen aus Kunststoff auszuführen, die einen Dichtungsring aus thermoplastischem Kautschuk verwenden, der durch Schweißen in der Verbindung befestigt wird.
So wird in der BE-PS-861021 und in der FR-PS-2444864 eine aus Polyolefin bestehende Verbindung beschrieben, die mit einem Dichtungsring aus Ethylen-Propylen-Dien-Methylen-Kautschuk, der mit Schwefel oder mit einem schwefelbildenden Stoff vulkanisiert wird, ausgerüstet ist, der durch Schweißen in der Verbindung befestigt werden kann.
Dennoch kann ein aus einem solchen Material bestehender Dichtungsring nicht richtig durch Schweißen in einer Verbindung von Rohrleitungen, die aus Harz auf Vinylchloridbasis besteht, mangels der gegenseitigen Verträglichkeit befestigt werden.
Zwar ist in der BE-PS-867993 vorgeschlagen worden, Verbindungen von Rohrleitungen aus Harz auf Vinylchloridbasis, die mit einem Dichtungsring aus thermoplastischem Kautschuk aus vorzugsweise weichmacherhaltigen Polyvinylchloridverbindungen, die Nitrilkautschuk und Polyurethan enthalten, und der durch Schweißen befestigt wird, auszuführen, aber, um in diesem Falle befriedigende Produkte zu erhalten, ist es erforderlich, wenigstens eines der Verbindungseiemente einer Bestrahlung mit stark durchdringender Strahlung auszusetzen, um eine Vernetzung hervorzurufen. In dieser Technik müssen demzufolge Zusammensetzungen auf weichmacherhaltiger Polyvinylchloridbasis verwendet werden, bei denen die beabsichtigte Vernetzungsreaktion überwiegt. Auf alle Fälle ist es erforderlich, eine Bestrahlungsvorrichtung anzuordnen, einen Bestrahlungsschritt vorzusehen und alle in Bestrahlungsvorgängen gebotenen Vorsichtsmaßnahmen zu treffen, um solche Verbindungen auszuführen.
Es ist möglich in konventionellen Herstellvorrichtungen Verbindungen für Rohrleitungen aus Harz auf Vinylchloridbasis mit einem Dichtungsring aus thermoplastischem Kautschuk herzustellen, der in den Verbindungen durch Schweißen befestigt werden kann, ohne irgendeine Bestrahlungsbehandlung vornehmen zu müssen.
Die Erfindung betrifft einen Dichtungsring für Rohrleitungsverbindungen aus Harz auf Vinylchioridbasis mit einem Dichtungsring aus thermoplastischem Kautschuk, der durch Schweißen in der Verbindung befestigt wird, wobei der Dichtungsring im wesentlichen aus einer teilweise vulkanisierten Mischung aus einem Ethylencopolymer mit mindestens einem copolymerisierbaren Comonomeren und zu 5 bis 75 Gew.-%, vorzugsweise 20 bis 60 Gew.-% der Mischung aus einem Vinylhalogenid- oder Vinylidenhalogenidpoly-mer besteht.
Mit Harz auf Vinylchloridbasis werden die Homopolymere von Vinylchlorid sowie die Copolymere mit mindestens 50 Mol % Einheiten, die von Vinylchlorid abgeleitet sind, bezeichnet.
Unter den Comonomeren, die mit dem Ethylen copolymerisiert werden können, werden im allgemeinen die ethylenisch ungesättigten Monomere, wie die Mono- oder Dicarbonsäuren und ihre Esterderivate, die Vinylester, die Acryl- oder Methacrylmonomere, das Carbonoxid und das Schwefeldioxid bevorzugt.
Das Vinylhalogenid- oder Vinylidenhalogenidpolymer kann ein Homopolymer oder ein Copolymer mit insbesondere von Vinylestern, Acrylnitril, Acrylestern, Vinyl- oder Vinylidenchlorid, ungesättigten Carbonsäuren oder Vinylethern abgeleiteten Einheiten sein, wobei das bevorzugte Polymer Polyvinylchlorid ist.
Besonders geeignete Mischungen zur Erzeugung des Dichtungsringes, sowie das Verfahren zu seiner Herstellung werden in der EP-OS-0101833 beschrieben,
Die Mischungen zur Ausführung des Dichtungsringes der Verbindung gemäß der Erfindung sind auf besondere Weise vulkanisiert, vorzugsweise bis zu einem Gelgehalt von 10 bis 70 %, der durch Auflösung in Tetrahydrofuran gemessen wird, so wie es in der vorgenannten EP-OS-0101833 beschrieben wird.
Diese Mischungen können ebenso übliche Zusätze wie Füllmaterialien, Schmiermittel, Stabilisierungsmittel und/oder Weichmacher enthalten.
Mischungen, die besonders für die Ausführung des Dichtungsringes der Verbindung gemäß der Erfindung geeignet sind, werden von der Firma E.I. du Pont de NEMOURS unter der Handelsmarke "ALCRYN" hergestellt und verkauft. Diese Mischungen bleiben mindestens bis 200 *C thermisch stabil, können leicht durch Injektion oder durch Kompression auf klassischen Vorrichtungen geformt werden und machen während ihrer Formung keinen Vulkanisierungsarbeitsgang erforderlich.
Gemäß einer ersten Ausführungsform der erfindungsgemäßen Verbindung für Rohrleitungen können der Dichtungsring und die Verbindung aus Harz auf Vinylchloridbasis getrennt durch übliche Techniken wie Formpressen, Spritzgießen oder Thermoverformung geformt werden, wobei die Formung des Dichtungsringes bei einer Temperatur zwischen 14Q und 190 "C erfolgt. In diesem Fall wird der vorhergehend geformte Dichtungsring anschließend in die Verbindung etngebracht und an der bestimmten Stelle durch Schweißen 2

Claims (7)

  1. AT 397 992 B mit einer konventionellen Technik, wie das Schweißen mit Heizspiegel, das Ultraschallschweißen, das elektrische Widerstandsschweißen, das Reibschweißen, das Hochfrequenzschweißen oder ferner das Vibrationsschweißen befestigt. Der Dichtungsring kann selbstverständlich auf der inneren und/oder äußeren Seite der Rohrverbindung befestigt werden. Eine Befestigung auf der äußeren Seite der Verbindung erweist sichals zweckmäßig, um das Verbindungsende gegen Stöße zu schützen. Wird die Befestigung durch die Schweißtechnik mit Heizspiegel ausgeführt, wird Vorzugsweise eine Spiegeltemperatur von 200 bis 240 ° C, ein Schweißdruck von 0,1 bis 0,3 N/mm1 und eine Schweißzeit von 15 bis 60 Sekunden angewendet. Gemäß einer anderen Ausführungsform der Rohrverbindung, die sich als wirtschaftlicher erwiesen hat, können die Verbindung und der Dichtungsring gleichzeitig durch die Koinjektionstechnik geformt werden, so wie es insbesondere in der BE-PS-838058, BE-PS-853292, EP-OS-0031620, EP-OS-0188012, EP-OS-0188300 und EP-OS-0188301 beschrieben wird. In diesem Fall wird die Injektionstemperatur des Materials, das den Dichtungsring bildet so gewählt, daß die direkte Befestigung durch Schweißen des geformten Dichtungsrings in der Verbindung sichergestellt wird. Gemäß einer dritten Ausführungsform kann der Dichtungsring, der mit einem harten Stauring aus Kunststoff, vorzugsweise aus Polyvinylchlorid ausgerüstet ist, der durch Schweißen befestigt wird, getrennt, beispielsweise durch die Koinjektionstechnik, hergestellt werden; anschließend wird diese Gesamtheit eingesetzt und durch Schweißen über den Stauring in der geformten Verbindung befestigt. Das entsprechende Verfahren wird in der Dokument GB-PS-2144190 beschrieben. Erfindungsgemäß ist es, möglich, einen durch einen inneren metallischen oder andersartigen Einsatz verstärkten Dichtungsring zu formen. Dieser Einsatz kann im Einzelnen ein elektrischer Widerstand, in dem Fall, daß eine spätere Befestigung durch elektrisches Schweißen ins Auge gefaßt wird, sein. Die erfindungsgemäße Verbindung für Rohrleitungen kann eine stumpf zusammenstoßende Einsteckverbindung gleich welchen Typs oder ferner eine Verzweigungsverbindung, so wie in der BE-PS-833318 beschrieben, sein. Die erfindungsgemäße Verbindung für Rohrleitungen ist durch die Fig. der beiliegenden Zeichnungen dargestellt, wobei die Fig. 1 bis 3 eine Teilansicht möglicher Ausführungsformen von Einsteckverbindungen und Fig. 4 eine Ansicht einer Verzweigungsverbindung zeigen. In diesen Fig. ist der erfindungsgemäße Dichtungsring 1 aus thermoplastischem Kautschuk durch eine Schweißverbindung 2 auf den inneren und/oder äußeren Wänden der geformten Verbindung 3 aus Hart-Polyvinylchlorid befestigt. Die erfindungsgemäße Verbindung für Rohrleitungen wird außerdem durch die folgende Beschreibung eines praktischen Ausführungsbeispieles einer Rohrverbindung des durch Fig.
  2. 2 dargestellten Ausführungsbeispieles dargestellt. Beispiel Ein Dichtungsring 1 des in Fig. 2 gezeigten Profiles wird durch Formung hergestellt, wobei als Material ALCRVN Harzkörner der Härte 70 Shore A verwendet werden. Hiezu wird das Material in dosierter Menge in die Matrize, die auf 180 *C gehalten wird, gebracht, und nach einer Heizzeit von 10 Min. wird die Formung durch Druck bewirkt. Nach einer Abkühlung der Matrize auf Umgebungstemperatur wird der geformte Dichtungsring entformt. Der auf diese Weise erhaltene Dichtungsring 1 wird anschließend auf dem Ende der Verbindung aus Polyvinylchlorid, vorgeformt durch Thermoverformung, und durch die Schweißtechnik mit Heizspiegel befestigt. In diesem Fall wird der Spiegel auf 220 · C gehalten, der aufgebrachte Schweißdruck beträgt 0,2 N/mm1, die Schweißzeit 30 Sekunden. Nach Abkühlung wird geprüft, ob der Dichtungsring einwandfrei auf der Verbindung durch Verschweißung befestigt ist, und daß dieser Ring reißt, wenn versucht wird, ihn aus der Verbindungsstelle auszureißen, ohne Nachgeben der Schweißnaht. Patentansprüche t. Verbindung für Rohrleitungen aus Harz auf Vmylchloridbasis mit einem Dichtungsring aus thermoplastischem Kautschuk, der durch Schweißen in der Verbindung befestigt ist, dadurch gekennzeichnet, daß der Dichtungsring (1) aus einer teilweise vulkanisierten Mischung aus einem Ethylencopolymer mit wenigstens einem copoiymerisierbaren Monomeren und zu 5-75 Gew.-% der Mischung aus einem Vinylhalogenid- oder Vmylidenhalogenidpolymer hergestellt ist 3 1 Verbindung nach Anspruch 1, dadurch gekennzeichnet, daß der teilweise vulkanisierte thermoplastische Kautschuk wie an sich bekannt ein Füllmaterial enthält. AT 397 992 B
  3. 3. Verbindung nach Anspruch 1, dadurch gekennzeichnet, daß der teilweise vulkanisierte thermoplastische Kautschuk einen Gelgehalt von 10-70 %, der durch Auflösung in Tetrahydrofuran gemessen wird, aufweist.
  4. 4. Verbindung nach Anspruch 1, dadurch gekennzeichnet, daß der Dichtungsring (1) durch Schweißen befestigt ist.
  5. 5. Verbindung nach Anspruch 1, dadurch gekennzeichnet, daß der Dichtungsring (1) durch Koinjektion hergestellt und befestigt ist.
  6. 6. Verbindung nach Anspruch 1, dadurch gekennzeichnet, daß der Dichtungsring (1) durch Schweißen auf einem Befestigungsring aus Harz auf Vinylchloridbasis befestigt ist, der danach mit der Verbindung in eine Einheit gebracht wird.
  7. 7. Verbindung nach Anspruch 1, dadurch gekennzeichnet, daß der Dichtungsring (1) durch Koinjektion aur einem Befestigungsring aus Harz auf Vinylchloridbasis befestigt ist, der danach mit der Verbindung in eine Einheit gebracht wird. Hiezu 3 Blatt Zeichnungen 4
AT0061088A 1987-03-09 1988-03-08 Verbindung für rohrleitungen aus harz auf vinylchloridbasis mit einem dichtungsring aus thermoplastischem kautschuk AT397992B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8703298A FR2612118B1 (fr) 1987-03-09 1987-03-09 Raccord pour tuyauterie en resine a base de chlorure de vinyle comprenant un anneau d'etancheite en caoutchouc thermoplastique

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ATA61088A ATA61088A (de) 1993-12-15
AT397992B true AT397992B (de) 1994-08-25

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AT (1) AT397992B (de)
BE (1) BE1006026A3 (de)
DE (1) DE3807593C2 (de)
ES (1) ES2006103A6 (de)
FR (1) FR2612118B1 (de)
GB (1) GB2203689B (de)
NL (1) NL194642C (de)
PT (1) PT86914B (de)

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GB2286148B (en) * 1994-02-02 1997-10-01 Glynwed Plastics Securing elastomeric and thermoplastics components together
GB2431135B (en) * 2005-10-11 2008-06-18 Uponor Innovation Ab Bonding thermoplastic and elastomeric members
DE102008059243A1 (de) * 2008-11-21 2010-05-27 Newfrey Llc, Newark Fügebauteil und Verfahren zum Herstellen eines Fügebauteils
IT1393549B1 (it) * 2009-04-03 2012-04-27 Coes S P A Giunzione per il collegamento a tenuta idraulica di tubi o raccordi, particolarmente in polipropilene, per impianti idraulici a bassa pressione.

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Publication number Publication date
BE1006026A3 (fr) 1994-04-26
GB2203689A (en) 1988-10-26
PT86914A (pt) 1989-03-30
NL8800562A (nl) 1988-10-03
GB2203689B (en) 1990-10-31
DE3807593A1 (de) 1988-09-22
NL194642C (nl) 2002-10-04
DE3807593C2 (de) 1997-07-10
FR2612118A1 (fr) 1988-09-16
GB8805475D0 (en) 1988-04-07
ATA61088A (de) 1993-12-15
ES2006103A6 (es) 1989-04-01
FR2612118B1 (fr) 1989-06-16
NL194642B (nl) 2002-06-03
PT86914B (pt) 1995-03-31

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