JPH03129194A - 融着継手 - Google Patents

融着継手

Info

Publication number
JPH03129194A
JPH03129194A JP1267373A JP26737389A JPH03129194A JP H03129194 A JPH03129194 A JP H03129194A JP 1267373 A JP1267373 A JP 1267373A JP 26737389 A JP26737389 A JP 26737389A JP H03129194 A JPH03129194 A JP H03129194A
Authority
JP
Japan
Prior art keywords
thermoplastic resin
conductive thermoplastic
fusion
fusion joint
resin
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
JP1267373A
Other languages
English (en)
Inventor
Yoshio Katayama
義男 片山
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.)
Proterial 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 JP1267373A priority Critical patent/JPH03129194A/ja
Publication of JPH03129194A publication Critical patent/JPH03129194A/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
    • 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
    • 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
    • B29C65/3408—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 single particles, e.g. fillers or discontinuous fibre-reinforcements
    • 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"
    • B29C65/36—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" heated by induction
    • B29C65/3604—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" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3608—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" heated by induction characterised by the type of elements heated by induction which remain in the joint comprising single particles, e.g. fillers or discontinuous fibre-reinforcements
    • B29C65/3612—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" heated by induction characterised by the type of elements heated by induction which remain in the joint comprising single particles, e.g. fillers or discontinuous fibre-reinforcements comprising fillers
    • 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"
    • B29C65/36—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" heated by induction
    • B29C65/3604—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" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/362—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" heated by induction characterised by the type of elements heated by induction which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • 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
    • B29C66/5229—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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/97—Checking completion of joining or correct joining by using indications on at least one of the joined parts
    • B29C66/972—Checking completion of joining or correct joining by using indications on at least one of the joined parts by extrusion of molten material
    • 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
    • B29C65/3408—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 single particles, e.g. fillers or discontinuous fibre-reinforcements
    • B29C65/3412—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 single particles, e.g. fillers or discontinuous fibre-reinforcements comprising fillers
    • 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
    • B29C65/3408—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 single particles, e.g. fillers or discontinuous fibre-reinforcements
    • B29C65/3416—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 single particles, e.g. fillers or discontinuous fibre-reinforcements comprising discontinuous fibre-reinforcements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—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
    • B29C65/3484—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 non-metallic
    • B29C65/3492—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 non-metallic being carbon
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (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、住宅の壁や床等、地下への埋設等に使用され
る給水・給湯・温水・ガス配管を接続する継手であって
、容易に接続がおこなえるようにした導電性熱可塑性樹
脂を発熱体とした融着継手に関する。
ε従来の技術］ 従来の電気融着継手に関連するものとして、例えば特公
昭６３−２４８２０号に開示された第８図に示す電気融
着継手がある。これは、熱可塑性絶縁材料で出来た２つ
の部材５１．５２を互いにその面を会わせて接触し、接
触面の一部に設けた発熱体であるコイル５５に電流をな
がすことによりコイルを設けた部分の接触面を材料が加
熱される溶接域とするとともに溶接域に隣合う前もって
挿入されたパイプにとけ込む。ここで、前記コイル５５
を熱可塑性絶縁材料５１にとりつける際多くの労力を必
要とし、コイル５５のショート問題と同時に、コイル５
５の取付けが熱可塑性絶縁材料５１にさまざまな形状に
する制約が存在する。同時に製造工程も多い。
［発明が解決しようとする問題点］ ここで、２層熱可ヅ性絶縁材料５１．５２と発熱体の前
述したコイル５５の取付は操作の誤り、熱可塑性絶縁材
料５２の成形時による圧力でコイル５５がよれる等のシ
ョート問題と発熱部に均一な発熱が得られないため、パ
イプの表面に均一に融は込みがなく融着にムラが生じ残
留応力の発生原因にもなっている。また多くの労力を費
やしても発熱体であるコイル５５の取付けが不可能な形
状が存在する。すなわち熱指向性を発熱体に持たせ融着
部に空気の巻き込みを起こさせないようコイル５５の断
面比を場所により変化させること、コイル５５を軸線方
向に曲がりくねったカーブを描きながら螺旋状に保持さ
せ取り付けることは、非常に困難である。
従ってこれら融着部を均一に融着させるための発熱体が
必要で同時に容易で安価に製造が出来る本発明はこれら
を提供する。
［問題点を解決するための手段］ 本発明によれば、導電性熱可塑性樹脂を発熱体として採
用し、しかも射出成形等の量産が可能で断面比も簡単に
変化出来、容易に熱可塑性融着継手を提供する事ができ
る。
本発明の第１の仕方によれば、発熱体及び融着部が導電
性フィラーであるカーボンブラック、金属粉末、金属繊
維または炭素繊維による導電性熱可塑性樹脂よりなり、
コントローラによって該融着継手に電流をながし、一定
のエネルギーを供給することで該融着継手を溶融し予め
差し込まれたパイプ表面に融着され、容易に接続が可能
となる。
本発明の第２の仕方によれば、発熱体及び融着部が導電
性フィラーであるカーボンブラック、金属粉末、金属繊
維または炭素繊維による導電性熱可塑性樹脂よりなり外
周面を熱可塑性絶縁樹脂で包み、コントローラによって
該導電性熱可塑性樹脂に電流をながし、一定のエネルギ
ーを供給することで該導電性熱可塑性樹脂を溶融し予め
差し込まれたパイプ表面も融着され容易に接続が可能と
なる。
本発明の第３の仕方によれば、発熱体及び融着部が導電
性フィラーであるカーボンブラック、金属粉末または炭
素繊維による導電性熱可塑性樹脂を螺旋形状にし熱指向
性をもたせ空気の巻き込みを融着部に生じさせない融着
継手である。
本発明の第４の仕方によれば、発熱体である材料の密度
または硬度変化を感知する素子が用いられ材料軟化時に
電気機械的または電子的構成要素が作用され、材料の特
性変化を検出・利用して溶融電流遮断システムに伝える
ことが可能である。
［実施例］ 以下、添付図面を参照して本発明の第１の方法を更に説
明する。
第１図は本発明が導電性フィラーであるカーボンブラッ
クを配合物とした中密度ポリエチレン樹脂製融着継手で
ある。代表的な導電性カーボンフランクの物理的性質を
表１に示す 表　１　　物理的性質 配合技術は遍在のない均一なコンパウンド技術とカーボ
ンの構造粘性に基ずく粘度上昇を押さえることが重要で
ある。
第２図および第３図は導電性熱可塑性樹脂２、あるいは
２Ｉとして中密度ポリエチレン樹脂にアルミニウム金属
粉を混ぜて成形し、その後、中密度ポリエチレン樹脂に
熱可塑性絶縁樹脂１、あるいは１１を外周部に成形して
出来た融着継手である。アルミニウム金属半分とポリエ
チレンとの混合比と電気抵抗の関係を表２に示す。
表　２　　フィラーの混合比と電気抵抗樹脂の機械的性
能や流動性の低下を考慮にいれて用途に応じて決定され
る。第５図は第３図の融着継手を第４図のパイプ４に挿
入させたところをあられす。凸部コネクターブツシュ３
１．３２にコントローラを接続し通電させ該導電性熱可
塑性樹脂２１が発熱し接しているパイプ４にとけこむこ
の場合パイプ４と熱可塑性絶縁樹脂１１は出来れば同一
の樹脂が望ましく導電性熱可塑性樹脂２１のマトリック
スも同一の樹脂が望ましい結果が得られた。
第６図は第５図の導電性熱可塑性樹脂２１の形状を螺旋
状にしたものでポリプロピレンにステンレス繊維のフィ
ラーを混入させて成形より得た実施例をあられし、前記
パイプ４へのとけこみを一方向から逐次おこなう熱指向
性を持たせるため断面形状が逐次変化している。また同
様に導電性熱可塑性樹脂と前記パイプの発熱ととけ込み
がタイミング良くいくように断面を図形とした実施例を
表す。
第７図は第３図の該導電性熱可塑性樹脂２５にセンサー
用コネクターブツシュ７１を設けた融着継手で、センサ
ー用コネクターブツシュ７１により融着時の材料軟化が
電気的に外部に検出出来また製造に伴う該導電性熱可塑
性樹脂２５の不均一な材料に対応できる。
［発明の効果］ 以上から明らかな様に本発明によれば、熱指向性を持た
せた発熱体を容易に製造することが可能で空気の巻き込
みによる現象を防ぎ均一な融着部が得られ残留応力がな
い融着継手を提供し、融着時の制御も実施可能となり、
優れた効果を発揮する。
【図面の簡単な説明】
第１図は、本発明のソケット継手に用いた断面図である
。第２図、第３図は、導電性熱可塑性樹脂を内面と端面
に持たせたソケット継手の断面図である。第４図は、接
続用パイプの例を示す断面図である。第５図は、第３図
のソケット継手に第４図のパイプを接続した断面図を示
す。第６図は導電性熱可塑性樹脂をらせん状にした断面
形状の実施例を示した図である。第７図は、第３図のソ
ケット継手にセンサー用凹部を設けた断面図を示す。第
８図は、従来の実施例のソケット継手の断面図を示す。 １．１１・・・熱可塑性絶縁樹脂、２．２１・・・導電
性熱可塑性樹脂、３１．３２・・・凸部コネクターブッ
シュ、４・・・接続パイプ、５１．５２・・・熱可塑性
絶縁樹脂、５５・・・コイル、７１・・・センサー用コ
ネクターブツシュ。 第１図 第３図 第 ４ 図 第 図 第 図 螺旋の断面図 第 図 第 図

Claims (1)

  1. 【特許請求の範囲】 １）カーボンブラック、金属粉末、金属繊維または炭素
    繊維をフィラーとした導電性熱可塑性樹脂よりなること
    を特徴とする融着継手 ２）カーボンブラック、金属粉末、金属繊維または炭素
    繊維をフィラーとした導電性熱可塑性樹脂を少なくとも
    端面または内面に設けたことを特徴とする融着継手 ３）特許請求の範囲第２項において前記導電性熱可塑性
    樹脂の導伝率を０．０１から１０Ω・ｃｍ＾−＾１に設
    けたことを特徴とする融着継手 ４）特許請求の範囲第２項において、前記導電性熱可塑
    性樹脂の２箇所に端子を設けたことを特徴とする融着継
    手 ５）特許請求の範囲第２項において、前記導電性熱可塑
    性樹脂を、螺旋形状にしたことを特徴とする融着継手 ６）特許請求の範囲第２項において、前記導電性熱可塑
    性樹脂の少なくとも１箇所にセンサー用コネクターブッ
    シュと熱電対とを一体に保持するゴムホルダーと、熱電
    対のリード線と通電ケーブルを保持するゴムキャップと
    からなり、ゴムホルダーの外周部に形成した凹部または
    凸部と該凹部または凸部に対応してゴムキャップの内周
    部に形成された凸部または凹部によってはめあわせて結
    合され、かつ熱電対とリード線、コネクターブッシュと
    通電ケーブルの間をそれぞれコネクターで着脱可能に連
    結したことを特徴とする融着継手
JP1267373A 1989-10-13 1989-10-13 融着継手 Pending JPH03129194A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1267373A JPH03129194A (ja) 1989-10-13 1989-10-13 融着継手

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1267373A JPH03129194A (ja) 1989-10-13 1989-10-13 融着継手

Publications (1)

Publication Number Publication Date
JPH03129194A true JPH03129194A (ja) 1991-06-03

Family

ID=17443937

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1267373A Pending JPH03129194A (ja) 1989-10-13 1989-10-13 融着継手

Country Status (1)

Country Link
JP (1) JPH03129194A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012137985A1 (ja) * 2011-04-08 2012-10-11 帝人株式会社 接合体の製造方法
JP2014533566A (ja) * 2011-11-29 2014-12-15 サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング 薬物送達デバイスの溶接ハウジング部材
CN108105507A (zh) * 2017-12-15 2018-06-01 武汉理工大学 一种rtp管热熔连接用碳纤维复合材料套管及其应用方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012137985A1 (ja) * 2011-04-08 2012-10-11 帝人株式会社 接合体の製造方法
JP5622929B2 (ja) * 2011-04-08 2014-11-12 帝人株式会社 接合体の製造方法
JP2014533566A (ja) * 2011-11-29 2014-12-15 サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング 薬物送達デバイスの溶接ハウジング部材
US10105490B2 (en) 2011-11-29 2018-10-23 Sanofi-Aventis Deutschland Gmbh Welded housing components of a drug delivery device
CN108105507A (zh) * 2017-12-15 2018-06-01 武汉理工大学 一种rtp管热熔连接用碳纤维复合材料套管及其应用方法

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