JP2513757B2 - 電気融着式プラスチック管の接続方法 - Google Patents

電気融着式プラスチック管の接続方法

Info

Publication number
JP2513757B2
JP2513757B2 JP63001732A JP173288A JP2513757B2 JP 2513757 B2 JP2513757 B2 JP 2513757B2 JP 63001732 A JP63001732 A JP 63001732A JP 173288 A JP173288 A JP 173288A JP 2513757 B2 JP2513757 B2 JP 2513757B2
Authority
JP
Japan
Prior art keywords
plastic pipe
pipe joint
temperature
plastic
energization
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP63001732A
Other languages
English (en)
Other versions
JPH01178437A (ja
Inventor
博 大矢
健 加藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Metals Ltd
Original Assignee
Hitachi Metals Ltd
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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP63001732A priority Critical patent/JP2513757B2/ja
Priority to EP19880440108 priority patent/EP0323793A1/en
Publication of JPH01178437A publication Critical patent/JPH01178437A/ja
Priority to US07/467,341 priority patent/US5150923A/en
Application granted granted Critical
Publication of JP2513757B2 publication Critical patent/JP2513757B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/26—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics for branching pipes; for joining pipes to walls; Adaptors therefor
    • F16L47/28—Joining pipes to walls or to other pipes, the axis of the joined pipe being perpendicular to the wall or to the axis of the other pipe
    • 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"
    • B29C65/3468—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 means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of 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
    • B29C65/02—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
    • B29C66/01—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
    • B29C66/12—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
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • 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
    • B29C66/5224—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
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/87—Auxiliary operations or devices
    • B29C66/874—Safety measures or devices
    • B29C66/8748—Safety measures or devices involving the use of warnings
    • 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
    • B29C66/9141—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
    • B29C66/91441—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 the temperature being non-constant over time
    • B29C66/91443—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 the temperature being non-constant over time following a temperature-time profile
    • 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
    • B29C66/91651—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 by controlling or regulating the heat generated by Joule heating or induction heating
    • B29C66/91655—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 by controlling or regulating the heat generated by Joule heating or induction heating by controlling or regulating the current intensity
    • 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
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91951—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to time, e.g. temperature-time diagrams
    • 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
    • B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • B29C66/961—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving a feedback loop mechanism, e.g. comparison with a desired value
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • F16L47/03—Welded joints with an electrical resistance incorporated in the joint
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—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
    • B29C65/348—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 with a polymer coating
    • 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
    • B29C66/91212—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 involving measurement means being part of the welding jaws, e.g. integrated in 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
    • B29C66/9131—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 heat or the thermal flux, i.e. the heat flux
    • B29C66/91311—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 heat or the thermal flux, i.e. the heat flux by measuring the heat generated by Joule heating or induction heating
    • B29C66/91317—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 heat or the thermal flux, i.e. the heat flux by measuring the heat generated by Joule heating or induction heating by measuring the electrical resistance
    • 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
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • 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
    • B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/959—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables
    • B29C66/9592—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables in explicit relation to another variable, e.g. X-Y diagrams

Landscapes

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

Description

【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、プラスチック管とプラスチック管継手とを
電気融着して接続する方法に関し、特に電気融着式プラ
スチック管接続方法における接続工程の表示に関する。
［従来の技術］ 従来の電気融着式プラスチック管継手の接続方法を、
例えば一般的によく用いられるソケット型管継手に用い
た場合について第４図をもとに説明する。
第４図はソケット型管継手であるソケット１にプラス
チック管2Aと同じく2Bとを電気融着して接続しようとす
る状態を示している。
ソケット１は、ほぼ円筒状のプラスチック管継手本体
11と、このプラスチック管継手本体11の内周面に埋込ん
だ電熱線12と、この電熱線12の両端各々に接続し下部を
プラスチック管継手本体11両端の外周面に埋込み、上部
をこの外周面より突出させた２本のコネクターピン13と
からなっている。このソケット１の両端の２本のコネク
ターピン13各々に制御装置６のコネクター３を差込み、
このコネクター３は配線分岐器４を経由して制御装置本
体５に配線接続している。
ここで、制御装置本体５を通じて電流をソケット１の
電熱線12に通じて、プラスチック管2Aとプラスチック管
2Bとをソケット１を介して電気融着して接続する。
従来この接続方法における制御方法および制御工程の
表示は次のような方法および表示であった。
制御方法については、ソケット１にプラスチック管2A
と同じく2Bとを嵌合してセットし、ソケット１の２本の
コネクターピン13各々に制御装置６のコネクター３を差
込み、プラスチック管2Aと同じく2Bとの接続準備が完了
である。
この後、制御装置本体５に電源を入力しこの中に設置
した温度計にて気温を測定し、この温度に適した電流通
過時間をタイマーにてセットする。このタイマーの時間
セットは自動あるいは手動にて行う。
次に、制御装置本体５の通電開始ボタンを押して電流
を通じ、タイマーで自動的にソケット１への通電を停止
する。
最後に、ソケット１のコネクターピン13よりコネクタ
ー３を抜いてプラスチック管2Aおよびプラスチック管2B
とソケット１との電気融着式の接続が終了する。
この接続制御方法における工程の表示については、制
御装置本体５に電源を入力したときの電源表示ランプ点
灯、および制御装置本体５の通電開始ボタンを押してソ
ケット１に電流を通じてからタイマーで通電を停止、終
了するまでの間の通電表示ランプ点灯があった。
［発明が解決しようとする問題点］ 以上説明したソケット１の接続方法における制御方法
および制御工程の表示では、ソケット１に通電が終了し
た後、コネクター３の取りはずすタイミングの表示がな
く、そのタイミングは通電終了後一定時間経過後に行う
必要があるが作業者の判断にまかされていた。
従って、ソケット１とプラスチック管2Aおよび2Bとの
融着部分が溶融中にコネクター３をコネクターピン13か
ら引き抜く恐れがあり、このとき融着部分に外力が加わ
り融着不良の原因となっていた。
本発明の目的は、プラスチック管継手の電気融着式接
続方法において、通電が終了したとき制御装置６のコネ
クター３をプラスチック管継手のコネクターピン13から
引き抜くタイミングの表示を行うことにより、融着不良
のない完全な接続が容易に行える電気融着式プラスチッ
ク管継手の接続方法を提供することである。
［問題点を解決するための手段］ 本発明はプラスチック管と、内周面に電熱線を埋込み
この電熱線の両端各々と接続したコネクターピンを外周
面より突出させたプラスチック管継手とを電気融着式に
て接続する方法において、 まず第１番目に、温度センサーを用いて前記プラスチ
ック管継手への通電を制御するための制御装置に電源を
入れて、前記プラスチック管継手のコネクターピンと前
記制御装置のコネクターとを接続し、 第２番目に、前記温度センサーにより前記プラスチッ
ク管継手の通電以前の初期温度を測定して通電時間を設
定し、あるいは前記プラスチック管継手の通電による上
昇温度の最高温度を設定して、前記プラスチック管継手
に通電を開始し、 第３番目にこの通電の停止後に前記プラスチック管継
手の低下温度を測定し、前記コネクターの取りはずし可
能な温度を設定して前記低下温度が前記設定温度に達す
るかしないかの表示を行うことを特徴とする電気融着式
プラスチック管の接続方法である。この電気融着式プラ
スチック管の接続方法によれば、プラスチック管継手へ
の通電終了後、制御装置のコネクターとプラスチック管
継手のコネクターピンとの取りはずしのタイミングを音
声・ランプなどにて合図・表示しているので適切なタイ
ミングでその取りはずし作業ができ、その取りはずしが
早過ぎて融着不良を起したり、余分な待ち時間を費すこ
ともない。
［実施例］ 本発明によるプラスチック管継手とプラスチック管と
の電気融着式接続方法の実施例を第１図〜第３図に示
す。第１図はプラスチック管継手１の一端部とプラスチ
ック管２との接続部分を示す縦断面図である。この第１
図におけるプラスチック管継手１の全体を第２図に縦断
面図で示す。
このプラスチック管継手１は［従来の技術］の欄で説
明したプラスチック管継手１とほぼ同様であるが、外周
面に熱電対挿入用の穴15を設けてある。
従ってプラスチック管継手１はプラスチック管継手本
体11、電熱線12、およびコネクターピン13が従来のプラ
スチック管継手１のそれらと全くあるいはほぼ同じであ
り、さらにプラスチック管２も［従来の技術］のプラス
チック管２と同じである。
次に第１図を用いて、本実施例の接続方法、制御方法
を説明する。
まず、第１番目にプラスチック管継手１に接続しよう
とするプラスチック管２を挿入する。これも従来の接続
のためのプラスチック管継手１へのプラスチック管２の
挿入と同じである。
第２番目にプラスチック管継手１のコネクターピン13
にコネクター３を挿入し、接続する。ここでコネクター
３はコネクターピン13と嵌合する穴を持つコネクターブ
ッシュ33とこのコネクターブッシュ33とほぼ平行な位置
関係にある熱電対31と、これらコネクターブッシュ33、
熱電対31を一体に保持するホルダー32とからなってい
る。
プラスチック管継手１にこのコネクター３を接続した
とき、コネクター３の熱電対31の下端部はプラスチック
管継手１の熱電対用の穴15のなかに入っており、その最
下端部は熱電対用の穴15の底に軽く接触している。
第３番目に制御装置本体（図示していない。）よりコ
ネクター３を通じプラスチック管継手１に通電する。
第４番目にプラスチック管継手１の温度が上昇し、設
定温度、本実施例である中密度ポリエチレンの管および
管継手の場合は約130℃に達したとき、通電を停止す
る。
第５番目にプラスチック管継手１への通電停止後この
低下温度を測定し、コネクター３のプラスチック管継手
からの取りはずしが可能な温度、すなわち外力を加えて
も融着部の接合状態に影響をあたえない温度、本実施例
である中密度ポリエチレンの管および管継手の場合約60
℃に達したとき、この表示、すなわち温度表示あるいは
この温度に基ずくブザー・音声などの合図を出す。
６番目にコネクター３をプラスチック管継手１よりは
ずして接続は完了する。
以上説明したプラスチック管継手１とプラスチック管
２との接続方法における第２番目から第５番目までの制
御装置の動作フローを説明したのが第３図である。まず
制御装置に電源を入れて、制御装置の電源スイッチを手
動でONにすると自動的に電源ランプが点灯する。次にノ
ーヒューズブレーカー（NFB）を手動でONする。
ここで前記した接続方法の第２番目で説明したコネク
ター３がコネクターピン13に接続しているか、さらに熱
電対31および電熱線12に断線がないかを確認し問題がな
ければ準備完了の表示を行う。この表示はランプ点灯あ
るいはブザーあるいは「準備完了」との音声でもよい。
もし異常があれば断線接続エラーの表示を行う。
この第３図において、 内動作は手軽にて行う動作を示し 内動作は自動的に行われる動作を示している。
準備完了の表示が行われた後、手動にてスタートスイ
ッチをONにするとスタートランプが点灯し熱電対31がプ
ラスチック管継手１の初期温度を自動的に測定し、この
温度に適した通電終了温度を設定する。引続き自動的に
タイマーが作動しスタートしこれと同時に通電が開始し
通電ランプが点灯する。このときNFBが当初のONの状態
のままであるかないか、判定しONであれば次のステップ
へ、ONでなければ、すなわちOFFであれば電流異常ラン
プが点灯する。
前記したNFBがONのときの次のステップは、プラスチ
ック管継手１に流れる電流値が大き過ぎたり小さ過ぎた
りしていないか、すなわち、ある設定幅内に入っている
かの確認である。電流値がある設定幅内に入っておれば
次のステップへ、入っていなければ電流トラブルランプ
が点灯する。前記「次のステップ」はプラスチック管継
手１が通電終了温度約（130℃）に達したかをチェック
し通電終了温度に達していなければ熱電対の故障等の異
常による限界時間オーバーをチェックし、限界時間に達
した場合通電を停止し、時間異常ランプを点灯する。
限界時間に達していなければ、通電終了温度に達する
まで通電を続けてから通電停止する。
通電停止と同時に通電ランプを消灯しかつ、ブザー等
の音を出し通電終了の表示を行う。また、ブザーの代り
に「通電終了しました」などの音声でもよい。
つづいて冷却中のランプを点灯し、プラスチック管継
手１がコネクターを取りはずしてもよい温度約（60℃）
に達したかを確認し、YESであれば冷却中のランプを消
灯し、コネクター取りはずしOKのランプを点灯し、同時
にブザー等の音を出して知らせる。NOであればYESにな
るまで待ってこの後の冷却中のランプ消灯およびコネク
ター取りはずしOKのランプ点灯などを行う。
以上説明した本実施例のプラスチック管継手１とプラ
スチック管２との電気融着式接続方法によれば、プラス
チック管継手１に通電を開始するための準備であるコネ
クター３とコネクターピン13との接続の確認を行い表示
しているので、準備不完全のまま通電することがない。
さらにプラスチック管継手１への通電終了を音声によっ
て表示しているので離れていたり、明るい日中でも通電
終了の確認がし易い効果がある。さらに熱電対によって
直接プラスチック管継手の初期温度を測定する為、温度
の設定は、誤差が小さく正確であり、適正な通電制御が
出来、完全な融着が容易に行えるようになった。
さらに通電終了後にプラスチック管継手１とプラスチ
ック管２との融着部の接合強度が充分確保できる温度ま
で冷却したことを確認してからコネクター３のプラスチ
ック管継手１からの取りはずしが出来るので、融着不良
の心配もなく、待ち過ぎの心配もない。
以上説明した実施例はソケット型管継手で２本のプラ
スチック管２を直線に接続するプラスチック管継手１で
あったが、90℃或いは45℃方向にプラスチック管２を曲
げて接続するエルボ、さらに３本のプラスチック管２を
接続するＴ、あるいはパイプから枝管を取り出す際に用
いるサドル型のプラスチック管継手の場合も以上説明し
た実施例と同様の方法で接続することができ、その効果
も同じである。また、本実施例で用いた熱電対をサーミ
スタに代えてもよく、同様の効果がある。
本実施例の接続方法は、プラスチック管継手１の初期
温度を測定し、プラスチック管継手１への通電を終了す
る温度を設定したが、他にプラスチック管継手１の初期
温度は測定しないで、通電終了温度を設定する場合があ
る。
さらに本実施例の接続方法では通電の終了温度を設定
したが、他の接続方法として、通電前のプラスチック管
継手の温度を測定して通電時間を設定してもよい。
この場合、通電停止後の制御工程は本実施例と同様で
ある。
［発明の効果］ 以上説明したとおり、本発明によるプラスチック管継
手とプラスチック管の電気融着式接続方法はプラスチッ
ク管継手への通電終了後、コネクター取りはずしOKのタ
イミングを音声・ブザー・点灯などにより表示するの
で、この取りはずしが早過ぎたり、待ち過ぎたりするこ
とがなく、完全なプラスチック管とプラスチック管継手
の融着が容易に行える効果がある。
【図面の簡単な説明】
第１図は本発明による実施例で用いるプラスチック管継
手、プラスチック管およびコネクターの部分を示す縦断
面図、第２図は実施例で用いたプラスチック管継手の縦
断面図、第３図は制御装置の動作フローを示す図、第４
図は従来例を示す制御装置と、プラスチック管およびプ
ラスチック管継手の縦断面図である。 １……プラスチック管継手,12……電熱線， 13……コネクターピン,2……プラスチック管， ３……コネクター,31……熱電対， 33……コネクターブッシュ，

Claims (1)

    (57)【特許請求の範囲】
  1. 【請求項１】プラスチック管と、内周面に電熱線を埋込
    みこの電熱線の両端各々と接続したコネクターピンを外
    周面より突出させたプラスチック管継手とを電気融着式
    にて接続する方法において、 まず第１番目に、温度センサーを用いて前記プラスチッ
    ク管継手への通電を制御するための制御装置に電源を入
    れて、前記プラスチック管継手のコネクターピンと前記
    制御装置のコネクターとを接続し、 第２番目に、前記温度センサーにより前記プラスチック
    管継手の通電以前の初期温度を測定して通電時間を設定
    し、あるいは前記プラスチック管継手の通電による上昇
    温度の最高温度を設定して、前記プラスチック管継手に
    通電を開始し、 第３番目にこの通電の停止後に前記プラスチック管継手
    の低下温度を測定し、前記コネクターの取りはずし可能
    な温度を設定して前記低下温度が前記設定温度に達する
    かしないかの表示を行うことを特徴とする電気融着式プ
    ラスチック管の接続方法。
JP63001732A 1987-06-29 1988-01-07 電気融着式プラスチック管の接続方法 Expired - Fee Related JP2513757B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP63001732A JP2513757B2 (ja) 1988-01-07 1988-01-07 電気融着式プラスチック管の接続方法
EP19880440108 EP0323793A1 (en) 1988-01-07 1988-12-22 Method for connecting plastic pipes
US07/467,341 US5150923A (en) 1987-06-29 1990-01-22 Plastic pipe joint assembly for joining sections of plastic pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63001732A JP2513757B2 (ja) 1988-01-07 1988-01-07 電気融着式プラスチック管の接続方法

Publications (2)

Publication Number Publication Date
JPH01178437A JPH01178437A (ja) 1989-07-14
JP2513757B2 true JP2513757B2 (ja) 1996-07-03

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EP (1) EP0323793A1 (ja)
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0764031B2 (ja) * 1988-07-20 1995-07-12 積水化学工業株式会社 溶着継手
WO1990013411A1 (en) * 1989-04-28 1990-11-15 Wavin B.V. Sleeve-shaped weld connecting piece of thermoplastic material with weld indicator element, and welded joint formed therewith
CN1142796A (zh) * 1993-12-15 1997-02-12 特殊工业株式会社 电熔化连接装置
DE19854594A1 (de) * 1998-11-26 2000-05-31 Mannesmann Vdo Ag Drosselklappenstutzen
JP2008209008A (ja) * 2008-06-06 2008-09-11 Hitachi Metals Ltd 電気融着継手
FR3003349B1 (fr) * 2013-03-18 2015-04-03 Gdf Suez Dispositif de mesure de l'evolution d'un champ de temperature et procede associe d'evaluation de la qualite d'une operation de soudage
FR3103408B1 (fr) * 2019-11-27 2022-12-09 Arkema France Procédé d’évaluation d’un assemblage par soudage de pièces à base de matériaux thermoplastiques

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MC1581A1 (fr) * 1983-12-02 1985-02-04 Toutelectric Procede pour le controle du temps de soudage
GB2151858B (en) * 1983-12-16 1987-10-28 British Gas Corp Coupling including means for identifying heat-sealable fittings having a socket (8)
EP0170844B1 (de) * 1984-08-08 1988-01-20 Georg Fischer Aktiengesellschaft Anbohrformstück aus schweissbarem Kunstoff
AU585551B2 (en) * 1984-11-29 1989-06-22 Wavin Ag Electrically weldable joining member for application to pipeline parts
GB2172947B (en) * 1985-03-25 1988-07-27 British Gas Plc Apparatus for fusion joining of thermoplastic pipes

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EP0323793A1 (en) 1989-07-12
JPH01178437A (ja) 1989-07-14

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