JPH0260730A - プラスチック管の接続部およびその接続方法 - Google Patents

プラスチック管の接続部およびその接続方法

Info

Publication number
JPH0260730A
JPH0260730A JP63213446A JP21344688A JPH0260730A JP H0260730 A JPH0260730 A JP H0260730A JP 63213446 A JP63213446 A JP 63213446A JP 21344688 A JP21344688 A JP 21344688A JP H0260730 A JPH0260730 A JP H0260730A
Authority
JP
Japan
Prior art keywords
polyethylene
socket
hot wire
connection part
pipes
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.)
Pending
Application number
JP63213446A
Other languages
English (en)
Inventor
Shigeo Uchiyama
内山　茂雄
Tamihiko Suzuki
鈴木　民彦
Yoshinobu Koizumi
小泉　芳信
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 Cable Ltd
Original Assignee
Hitachi Cable 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 Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP63213446A priority Critical patent/JPH0260730A/ja
Publication of JPH0260730A publication Critical patent/JPH0260730A/ja
Pending legal-status Critical Current

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
    • 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
    • B29C65/18—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"
    • B29C65/2053—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" characterised by special ways of bringing the welding mirrors into position
    • B29C65/2061—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" characterised by special ways of bringing the welding mirrors into position by sliding
    • 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
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • 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
    • B29C66/05—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
    • B29C66/1142—Single butt to 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
    • B29C66/50—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
    • B29C66/52291—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
    • B29C66/50—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
    • B29C66/52294—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being heated
    • 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
    • B29C66/52298—Joining tubular articles involving the use of a socket said socket being composed by several 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
    • B29C66/50—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
    • B29C66/50—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
    • B29C66/63—Internally supporting the article during joining
    • B29C66/634—Internally supporting the article during joining using an inflatable core
    • 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
    • B29C66/63—Internally supporting the article during joining
    • B29C66/636—Internally supporting the article during joining using a support which remains in the joined object
    • 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
    • B29C66/50—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
    • B29C66/5223—Joining tubular articles for forming corner connections or elbows, e.g. for making V-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
    • B29C66/70—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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

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の接続部およびその接続方法に
関し、特に、送水管、電線管等に適用できるプラスチッ
ク管の接続部およびその接続方法に関する。
〔従来の技術〕
従来のプラスチック管の接続方法として、例えば、熱線
ソケット方法とバット溶着方法がある。
（イ）熱線ソケット方法 接続されるポリエチレン管の外径に略等しい内径を有す
るポリエチレンソケットの内面あるいは内面に近接した
位置に熱線（ヒータｖＡ）をコイル状に設けた熱線ソケ
ットを使用する。この熱線ソケットをポリエチレン管の
接続部の外周に被嵌し、熱線に所定の電流を流すことに
よって熱線ソケットの内面とポリエチレン管の外面を溶
融し、両溶融面を溶着した後冷却（自然放置を含む）す
る。このとき熱線ソケットの外周より金属ハンドで固定
して溶着面に所定の圧力を加える。
（＋１）バット溶着方法 接続されるポリエチレン管の端面を清浄にした後加熱板
等で溶融し、両溶融端面を圧着した後冷却（自然放置を
含む）する。
以上の接続方法りこより単位長のポリエチレン管を接続
することにより所定の長さの連続ポリエチレン管を得る
ことができる。
〔発明が解決しようとする課題〕
しかし、従来のポリエチレン管の接続部は、例えば、ド
ラム巻、コイル取り等によって曲げると、ポリエチレン
管本体に比較して機械的強度が低（、所定の曲げ強度が
得られていない。そのために信頼性が低い。また、曲げ
強度だけを大にすると、可撓性が低下する。
従って、本発明の目的はプラスチック管本体に比較して
路間等の機械的強度を有したプラスチック管の接続部お
よび接続方法を提供することにある。
〔課題を解決するための手段〕
本発明は上記の目的を実現するため、プラスチック管の
端面を溶着した第１の接続部と、プラスチック管の端部
の外面とその外面に位置するソケットの内面を溶着した
第２の接続部とを備えたプラスチック管の接続方法を提
供する。
更に、前記第１の接続部をバット溶着方法により形成し
、前記第２の接続部を熱線ソケット方法により形成する
プラスチック管の接続方法を提供する。
〔作用〕
第８図において、ポリエチレン管１０．２０をポリエチ
レンスリーブ３０によって接続した接続部を検討する。
ポリエチレン管１０．２０の外面とポリエチレンスリー
ブ３０の内面を溶着あるいは接着剤で接着して接続部を
形成する。
この接続部を曲率Ｒで曲げると、曲げ剛性が変化する点
Ｐ＋、Ｐｚに曲げ応力が集中する。
曲げ応力の集中を緩和するためにはＰＩ、Ｐ２の曲げ剛
性の変化率を小さくすれば良い。この変化率を小さくす
るためにはポリエチレンスリーブ３０の厚さを小にしな
ければならない。
しかし、ポリエチレンスリーブの厚さを小にすると接続
部の機械的強度、特に点Ｐ、の機械的強度が低下する。
従って、ポリエチレンスリーブ３０は所定の厚さを有し
なければならない。
本発明は以上の検討結果に基づくものである。本発明は
点Ｐ２の曲げ剛性の変化を殆ど無視できるようにするた
めにポリエチレン管１０、２０の端面同志を溶着してポ
リエチレン管本体と路間等にする。これによって点Ｐ２
における曲げ応力の集中を殆ど無視できるようにする。
更に、必要に応じて点Ｐ、においてポリエチレンスリー
ブ３０にテーバを付するとそこに集中する曲げ応力をも
緩和することができる。
〔実施例〕
以下、本発明のプラスチック管の接続部およびその接続
方法を詳細に説明する。
第１図は本発明の接続部の第１の実施例を示し、ポリエ
チレン管１，２の端面がバット接続部３によって接続さ
れており、更に、熱線４を有するポリエチレンソケット
５によってその外周より接続されてる。
第２図は本発明の接続部の第２の実施例を示し、第１の
実施例のポリエチレンソケット５の両端部の外周面６を
切削してそこにテーパ面を形成したものである。
第３図は本発明の接続部の第３の実施例を示し、予めテ
ーパ面７を有するポリエチレンソケット５を使用したも
のである。
第４図は本発明の接続部の第４の実施例を示し、コルゲ
ート状の外周面８を有するポリエチレンソケット５を使
用したものである。
第５図（ａ）は本発明の接続部の第５の実施例を示し、
バット接続部３によって接続されたポリエチレン管１．
２の内外の面に熱線４を有するポリエチレンソケット５
と熱線１４を有するポリエチレンソケット１５とによっ
て接続したものである。この場合、ポリエチレンソケッ
ト１５は長さ、厚さともにポリエチレンソケット５より
小にする。これによって接続部の曲げ特性の低下を抑え
ながら機械的強度の増加を図る。
第５図（ｂ）は本発明の接続部の第６の実施例を示す。
この実施例では、熱線４を有するポリエチレンソケット
５は内面に突出した突出部５Ａを有し、その両側面にも
熱線４が配置されている。従って、ポリエチレン管１．
２の端面と突出部５Ａの両側面は熱線４の発熱によって
溶着し、バット接続部３ａ、３ｂを形成する。この実施
例は、−工程によってバット接続部とスリーブ接続部を
形成することができる。
第６図（ａｌ、　（ｂ）は本発明の接続方法の実施例を
示す。まず、ベース部材６１の上をスライドするスライ
ド部材６２．６３にポリエチレン管１゜２を固定する。
スライド部材６２．６３は二つ割りの固定部材６４．６
５を有し、ボルト６６、６７によって締め付けることに
よってポリエチレン管１，２を固定する。ベース部材６
１は第３のスライド部材６８を有し、その上に着脱可能
な加熱装置６９が設けられている。ポリエチレン管１の
外周にポリエチレンより成る熱線ソケット５が予め通さ
れており、ポリエチレン管２の外周には熱線ソケット５
の一端を位置させる標識２Ａを付しておく。加熱装置６
９の電源（図示せず）をオンすると加熱装置６９の加熱
板（図示せず）は所定の温度に上昇する。
次に、スライド部材６２．６３を油圧機構（図示せず）
によって矢印方向にスライドさせると、ポリエチレン管
１，２の端面ば加熱板に押し付けられ、溶融させられる
。この後、ポリエチレン管１．２を反対方向にスライド
させて加熱袋Ｗ６９をスライド部材６８より取り外す。
次に、ポリエチレン管１，２を再び矢印方向にスライド
させると、溶融させられた端面同志が溶着してバット接
続部を形成する。この後、熱線ソケット５をポリエチレ
ン管２の標識２Ａの位置までスライドさせる。この状態
で熱線のリード線７１．７２を電圧電流調整器７３の端
子７３Ａ、７３Ｂに接続し、所定の電圧を印加して所定
の電流を所定の時間通電する。これによって熱線ソケッ
ト５がポリエチレン管１．２の外周に溶着する。このと
き、熱線ソケット５の外周に金属バンドが締められるが
図示を省略した。この後、通電を停止し、所定の時間放
置して冷却し、接続部を形成する。
この後、ポル）６６、６７を緩めて固定部材６４゜６５
から接続されたポリエチレン管１，２を取り外して作業
を終了する。
第７図は第５図（ａ）の実施例に対応する接続方法を示
し、熱線ソケット１５のリード線８１゜８２をバット接
続部３を介して外部に引き出すことにより熱線ソケット
１５をバット接続部３のポリエチレン管１．２の内面に
溶着し、その後、その外周に熱線ソケット５をスライド
させ、前述した方法で溶着させる。この場合、ポリエチ
レン管１，２の外部より溶着のための圧力を加えれば良
い。
以上の実施例では、ポリエチレン管について説明してき
たが、これに限定するものではなく、塩化ビニルその他
の材料の管にも適用することができる。
〔発明の効果〕
以上説明した通り、本発明のプラスチック管の接続部お
よびその接続方法によると、プラスチック管の端面を溶
着した第１の接続部と、プラスチック管の端部の外面と
その外面に位置するソケットの内面を溶着した第２の接
続部を備え、また、本発明のプラスチック管の接続方法
によると、前記第１の接続部をバット溶着により形成し
、前記第２の接続部を熱線ソケット方法により形成する
ため、接続部の機械的強度を増加し、信頼性を向上す４
゜ ることができる。
【図面の簡単な説明】
第１図より第４図は本発明の接続部の第１より第４の実
施例を示す断面図。第５図（ａｌ・（ｂ）は本発明の接
続部の第５および第６の実施例を示す断面図。第６図（
ａｌ、　（ｂ）は本発明の接続方法を示す説明図。第７
図は第５図（ａ）の接続方法を示す断面図。第８図は接
続部の曲げ応力の集中を説明する断面図。 符号の説明 １　、　２−一−−−−−−・ポリエチレン管３−・−
・−−−−−バット接続部 ４−−−−−−−−一熱線 ５−・−一−−−−熱線ソケソト

Claims (2)

    【特許請求の範囲】
  1. （１）プラスチック管の端面同志を突き合わせて溶着し
    た第１の接続部と、 前記プラスチック管の端部外面とその外面に位置するソ
    ケットの内面とを溶着した第２の接続部とを備えたこと
    を特徴とするプラスチック管の接続部。
  2. （２）プラスチック管の端面同志を溶融してから所定の
    圧力で圧着してバット接続部を形成する工程と、 前記バット接続部の外面に熱線を有したソケットを被嵌
    し、その外面とソケットの内面を熱線の発熱によって溶
    着して熱線ソケット接続部を形成する工程を備えたこと
    を特徴とするプラスチック管の接続方法。
JP63213446A 1988-08-26 1988-08-26 プラスチック管の接続部およびその接続方法 Pending JPH0260730A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63213446A JPH0260730A (ja) 1988-08-26 1988-08-26 プラスチック管の接続部およびその接続方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63213446A JPH0260730A (ja) 1988-08-26 1988-08-26 プラスチック管の接続部およびその接続方法

Publications (1)

Publication Number Publication Date
JPH0260730A true JPH0260730A (ja) 1990-03-01

Family

ID=16639361

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63213446A Pending JPH0260730A (ja) 1988-08-26 1988-08-26 プラスチック管の接続部およびその接続方法

Country Status (1)

Country Link
JP (1) JPH0260730A (ja)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0619176A2 (de) * 1993-03-11 1994-10-12 Wilhelm Hegler Verfahren zum Verschweissen von aus thermoplastischem Kunststoff bestehenden Rohrstücken
WO1995003162A1 (en) * 1993-07-20 1995-02-02 British Gas Plc A method of joining reinforced thermoplastic pipes
WO1997049540A1 (en) * 1996-06-25 1997-12-31 Uponor B.V. Electrofusion fitting
WO2009033603A1 (de) * 2007-09-07 2009-03-19 Egeplast Werner Strumann Gmbh & Co. Kg VERFAHREN ZUM VERSCHWEIßEN VON KUNSTSTOFFROHREN
JP2013535634A (ja) * 2010-08-11 2013-09-12 パワーコア インターナショナル リミテッド 内部電気融合リングカプラ
JP2015034594A (ja) * 2013-08-08 2015-02-19 積水化学工業株式会社 管継手及び配管構造の施工方法
WO2015055705A1 (de) * 2013-10-15 2015-04-23 Hürner Schweisstechnik Gmbh SCHWEIßBASIS FÜR EINE SCHWEIßVORRICHTUNG ZUR HERSTELLUNG EINER SCHWEIßVERBINDUNG ZWISCHEN KUNSTSTOFFROHREN
WO2021149832A1 (ja) * 2020-01-24 2021-07-29 積水化学工業株式会社 電気融着継手および融着方法

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0619176A3 (en) * 1993-03-11 1996-02-07 Wilhelm Hegler Process for welding thermoplastic pipes.
EP0619176A2 (de) * 1993-03-11 1994-10-12 Wilhelm Hegler Verfahren zum Verschweissen von aus thermoplastischem Kunststoff bestehenden Rohrstücken
US5824179A (en) * 1993-07-20 1998-10-20 British Gas Plc Method of joining reinforced thermoplastic pipes
AU680274B2 (en) * 1993-07-20 1997-07-24 Lattice Intellectual Property Limited A method of joining reinforced thermoplastic pipes
GB2280145B (en) * 1993-07-20 1997-08-20 British Gas Plc A method of joining reinforced thermoplastic pipes
WO1995003162A1 (en) * 1993-07-20 1995-02-02 British Gas Plc A method of joining reinforced thermoplastic pipes
WO1997049540A1 (en) * 1996-06-25 1997-12-31 Uponor B.V. Electrofusion fitting
WO2009033603A1 (de) * 2007-09-07 2009-03-19 Egeplast Werner Strumann Gmbh & Co. Kg VERFAHREN ZUM VERSCHWEIßEN VON KUNSTSTOFFROHREN
JP2013535634A (ja) * 2010-08-11 2013-09-12 パワーコア インターナショナル リミテッド 内部電気融合リングカプラ
JP2015034594A (ja) * 2013-08-08 2015-02-19 積水化学工業株式会社 管継手及び配管構造の施工方法
WO2015055705A1 (de) * 2013-10-15 2015-04-23 Hürner Schweisstechnik Gmbh SCHWEIßBASIS FÜR EINE SCHWEIßVORRICHTUNG ZUR HERSTELLUNG EINER SCHWEIßVERBINDUNG ZWISCHEN KUNSTSTOFFROHREN
WO2021149832A1 (ja) * 2020-01-24 2021-07-29 積水化学工業株式会社 電気融着継手および融着方法
JPWO2021149832A1 (ja) * 2020-01-24 2021-07-29

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