JPH0615742A - 溶着スリーブ及びその製造法 - Google Patents

溶着スリーブ及びその製造法

Info

Publication number
JPH0615742A
JPH0615742A JP5016369A JP1636993A JPH0615742A JP H0615742 A JPH0615742 A JP H0615742A JP 5016369 A JP5016369 A JP 5016369A JP 1636993 A JP1636993 A JP 1636993A JP H0615742 A JPH0615742 A JP H0615742A
Authority
JP
Japan
Prior art keywords
sleeve member
sleeve
welding
reinforcing ring
ring
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
JP5016369A
Other languages
English (en)
Inventor
Friedhelm Keller
ケラー フリードヘルム
Dirk Petry
ペトリ ディルク
Helmut Hilger
ヒルガー ヘルムット
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.)
GEORGE FISCHER PAIPINGU SYST Ltd
Georg Fischer Rohrleitungssysteme AG
Georg Fischer Piping Systems Ltd
Original Assignee
GEORGE FISCHER PAIPINGU SYST Ltd
Georg Fischer Rohrleitungssysteme AG
Georg Fischer Piping Systems 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 GEORGE FISCHER PAIPINGU SYST Ltd, Georg Fischer Rohrleitungssysteme AG, Georg Fischer Piping Systems Ltd filed Critical GEORGE FISCHER PAIPINGU SYST Ltd
Publication of JPH0615742A publication Critical patent/JPH0615742A/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
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • B29D23/003—Pipe joints, e.g. straight joints
    • B29D23/005—Pipe joints, e.g. straight joints provided with electrical wiring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/006—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor the force created by the liberation of the internal stresses being used for compression moulding or for pressing preformed 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
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • 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"
    • B29C65/3472—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
    • B29C65/66—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined
    • B29C65/68—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined using auxiliary shrinkable elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/347—General aspects dealing with the joint area or with the area to be joined using particular temperature distributions or gradients; using particular heat distributions or gradients
    • B29C66/3472—General aspects dealing with the joint area or with the area to be joined using particular temperature distributions or gradients; using particular heat distributions or gradients in the plane of the joint, e.g. along the joint line in the plane of the joint or perpendicular to the joint line in the plane of 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
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • B29C61/08—Making preforms having internal stresses, e.g. plastic memory by stretching tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3468—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
    • 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)
  • General Engineering & Computer Science (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

(57)【要約】 【目的】 溶着時の種々の環境温度にて安定した操作性
が得られ経済的な溶着スリーブを提供する。 【構成】 溶着スリーブが内面に抵抗巻線を有する、熱
可塑性溶着可能材料のスリーブ部材からなることを開示
する。熱可塑性材料の補強リングをスリーブ部材の外周
に摩擦連結する。

Description

【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は溶着スリーブ又はソケッ
ト及び溶着スリーブの製造方法に関する。
【０００２】
【従来の技術】商業的に有用なパイプはある程度広い許
容度を有し、且つかなり楕円である。これによると、ス
リーブの内径を非常に大きく設計することが要求され
る。又、容易に取付け可能にするために、付加的な大き
い熱伸長又は歪みにより、大径を有する溶着スリーブを
電気的に生ぜしめ、結果として溶着域で圧力が減少す
る。
【０００３】溶着スリーブは欧州特許出願公開第022228
7 号明細書に開示されており、ここでは、ポリオレフィ
ンのスリーブ部材より熱膨脹係数の低い材料で補強部材
を形成してスリーブ本体中でスリーブ材料を溶着しやす
くしている。充分な溶着に必要な溶着圧力は溶着工程中
に補強部材の伸長又は拡開がより小さい場合に得られ
る。
【０００４】
【発明が解決しようとする課題】しかしながら、溶着工
程中に環境温度に応じてスリーブ部材と補強部材との間
で熱膨脹係数が変わるとプレストレスが変わる。例えば
−10℃より＋45℃の方が溶着圧力が異なる。故に安定し
た操作可能性は保証され得ない。パイプ形状部材又は巻
線若しくはコイルとして形成された補強部材は防錆性が
なく、故に中間圧力に対しても作用する、溶着スリーブ
の補強部材として永続性がない。
【０００５】溶着スリーブの上記及び従来の欠点を克服
するために、本発明は、溶着時の種々の環境温度にて安
定した操作性が得られる経済的な溶着スリーブを提供す
ることを目的とする。本発明の別の目的は、例えば160m
m を超える大径に使用でき、防錆性のある溶着スリーブ
を提供することである。又、本発明の別の目的は、簡単
な、自動方法で溶着スリーブを製造する方法を提供する
ことである。
【０００６】
【課題を解決するための手段】本発明の上記及び他の目
的は、以下に明らかとなるが、開示した溶着スリーブ及
びその製造法により達成され、熱可塑性材料により形成
されたスリーブ部材を有する溶着スリーブからなる。ス
リーブ部材の内面は抵抗巻線を有し、外周は補強リング
を備える。補強リングはスリーブの外周に圧縮されてお
り、巻回しているので、円周応力を有する。これらの応
力はスリーブ部材に半径方向に作用し、良好な溶着接合
に要求される溶着圧力を増す。
【０００７】
【実施例】図は好ましくは熱可塑性溶着可能材料から形
成されたスリーブ部材１を有する硬質パイプ形状部品又
はパイプ用の溶着スリーブを示す。抵抗巻線３はこのス
リーブの内面２に配置され、電源連結用に例えば結合線
材４又は差込形結線を含む。
【０００８】補強リング６はスリーブ部材１の外周５に
配置され、収縮又は加圧による摩擦接着法にてスリーブ
部材１に結合している。又、補強リング６は熱可塑性材
料、好ましくはポリエチレンのようなポリオレフィンか
ら形成される。補強リング６を加熱してスリーブ１周り
にプレスし、その後急速に冷却すると、付加的な収縮応
力が固定化し、パイプ部品に関する溶着工程にまで残留
し、その後溶着圧力を得るために完全に利用できる。補
強リング６をスリーブ部材１に装着する際に、補強リン
グ６をスリーブ部材１にプレスする。このとき既にスリ
ーブ部材１は抵抗巻線３を備えている。
【０００９】補強リング６を、使用材料及び直径に応じ
て、スリーブ部材の温度より高温に加熱することが必要
であるか又は有利である。摩擦的接合によりスリーブ部
材１の外周に熱可塑性材料を使用することにより、内方
向の圧力が生じるが、これは溶着中に応力が生じるため
である。内方向の圧力は溶融した材料に作用して、良好
な溶着結合に必要な溶着圧力を生じる。補強リング６の
熱膨脹係数はスリーブ部材１の熱膨脹係数に非常に一致
するので、等しい溶着圧力条件がすべての環境温度にて
保証される。溶着工程中に固定した応力は加熱により除
去され、スリーブ部材及び溶融材料に半径方向の圧力と
して作用する。
【００１０】スリーブ部材１の外径Ｄは可能な範囲で加
熱した補強リング６の内径より僅かに大きく、ここにリ
ング６は寸法を拡げることにより拡大される。拡大工程
で補強リング６の周方向にわたる応力を生じ、これは半
径方向圧力として溶着工程中に溶着圧力を増やす。補強
リング６の加熱温度を選択することにより、応力形成す
るための冷却に際して補強リング６の寸法変化を利用で
き、結合した圧縮嵌合が得られる。
【００１１】溶着域中の溶融材料のために、スリーブ部
材１の剛性は付加的に減少し、これにより半径方向の圧
力が増える。これは溶着圧力を増やし、付加的により許
容度の大きい硬質の溶着接合を確実にする。
【００１２】寸法の拡開、補強リングの設定壁厚及びこ
れの可能加熱温度を選択することにより、所望の応力又
は要求溶着圧力を達成でき、これにより溶着スリーブの
配置を最適にできる。
【００１３】補強リング６の壁厚Ｓ2 はスリーブ部材１
の壁厚Ｓ1 より有利に薄いか又は僅かに厚い。薄いと材
料の節約になる。
【００１４】本発明の好ましい実施態様を詳細に示した
が、これの変更態様及び改良態様は、特許請求の範囲に
規定した本発明の精神及び範囲から逸脱することなく行
うことができる。
【図面の簡単な説明】
【図１】溶着スリーブの部分縦断面図を示す。
【符号の説明】
１ スリーブ部材 ３ 抵抗巻線 ６ 補強リング
───────────────────────────────────────────────────── フロントページの続き (72)発明者 ディルク ペトリ スイス国 フォイヤーターレン ツェーハ ー−8245 バーンフォッフシュトラーセ 83 (72)発明者 ヘルムット ヒルガー スイス国 ツェーハー−8222 ベリンゲン ポストベルク ３

Claims (8)

    【特許請求の範囲】
  1. 【請求項１】 熱可塑性溶着可能材料からなるスリーブ
    部材；前記スリーブ部材の内面の抵抗巻線；及び前記ス
    リーブ部材の外周に連結した熱可塑性材料からなり、前
    記スリーブ部材の外周に摩擦連結した補強リングを備え
    たことを特徴とする溶着スリーブ。
  2. 【請求項２】 更にプレスフィットを含み、前記補強リ
    ング６を前記スリーブ部材の外周に連結したことを特徴
    とする請求項１記載の溶着スリーブ。
  3. 【請求項３】 前記補強リングがスリーブ部材と同じ熱
    可塑性材料からなり、好ましくはポリオレフィンである
    ことを特徴とする請求項１記載の溶着スリーブ。
  4. 【請求項４】 前記補強リングがスリーブ部材と同じ熱
    可塑性材料からなり、好ましくはポリオレフィンである
    ことを特徴とする請求項２記載の溶着スリーブ。
  5. 【請求項５】 前記補強リングが周方向に冷却潜在応力
    を有することを特徴とする請求項１〜４のいずれか１つ
    に記載の溶着スリーブ。
  6. 【請求項６】 前記スリーブ部材の外径より小さい内径
    を有する補強リングを製造するステップ；前記スリーブ
    部材に前記リングをプレスするステップ；及び前記リン
    グを延伸すると同時に、拡開により生じた円周応力がス
    リーブ部材に半径方向に作用することを特徴とする溶着
    スリーブを製造する方法。
  7. 【請求項７】 補強リングを加熱した後スリーブ部材に
    プレスするステップ；及び生じた収縮応力が固定するよ
    うに補強リングを急速に冷却するステップを更に含むこ
    とを特徴とする請求項６記載の方法。
  8. 【請求項８】 前記スリーブ部材に抵抗巻線を設けるこ
    とを特徴とする請求項６又は７記載の方法。
JP5016369A 1992-02-08 1993-02-03 溶着スリーブ及びその製造法 Pending JPH0615742A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4203626A DE4203626C2 (de) 1992-02-08 1992-02-08 Schweissmuffe und verfahren zu deren herstellung
DE4203626:7 1992-02-08

Publications (1)

Publication Number Publication Date
JPH0615742A true JPH0615742A (ja) 1994-01-25

Family

ID=6451212

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5016369A Pending JPH0615742A (ja) 1992-02-08 1993-02-03 溶着スリーブ及びその製造法

Country Status (4)

Country Link
US (1) US5255943A (ja)
EP (1) EP0555684A1 (ja)
JP (1) JPH0615742A (ja)
DE (1) DE4203626C2 (ja)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2692020B1 (fr) * 1992-06-04 1996-01-26 Innoge Sam Raccord thermosoudable pour tubes en un materiau plastique et son procede de fabrication.
US5369248A (en) * 1992-09-01 1994-11-29 Gaz De France Electro-weldable connecting piece having connection terminals and its method of manufacture
DE4332196C2 (de) * 1993-09-22 1996-09-19 Fischer Georg Rohrleitung Schweißmuffe aus thermoplastischem Material
DE4422372A1 (de) * 1994-06-27 1996-01-04 Gruber Alois Agru Gmbh Verfahren zum Schweißen von Kunststoffrohren und Muffe zur Durchführung des Verfahrens
US5618065A (en) * 1994-07-21 1997-04-08 Hitachi Metals, Ltd. Electric welding pipe joint having a two layer outer member
US5775736A (en) * 1996-02-21 1998-07-07 Phillips Petroleum Company Plastic pipe fittings
FI103267B (fi) * 1996-05-23 1999-05-31 Uponor Innovation Ab Menetelmä putkiyhteen valmistamiseksi ja putkiyhde
US5916468A (en) * 1996-07-08 1999-06-29 Hitachi Metals Ltd. Electrically weldable pipe joint and production method thereof
DE19807950A1 (de) * 1998-02-25 1999-09-09 Merle Heizwendelfitting mit Schrumpfmantel
DE60228104D1 (de) * 2001-10-03 2008-09-18 Petrotechnik Ltd Kupplung
EP1745917B1 (de) 2005-07-18 2013-03-06 Georg Fischer Wavin AG Elektroschweissmuffe
ITMI20062503A1 (it) * 2006-12-22 2008-06-23 Geco System Spa Metodo e assieme per riparare giuntare o irrobustire tubi in materiale plastico
DE102007042807A1 (de) 2007-09-07 2009-03-12 Egeplast Werner Strumann Gmbh & Co. Kg Heizwendelmuffe
EP2672162A1 (de) 2012-06-08 2013-12-11 Georg Fischer Wavin AG Gerillte Elektroschweissmuffe
EP3434454B1 (de) * 2017-07-26 2023-03-01 Georg Fischer Wavin AG Elastische elektroschweissverbindung
CN109000069A (zh) * 2018-08-28 2018-12-14 浙江伟星新型建材股份有限公司 一种组合式电熔管件

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62118187A (ja) * 1985-11-13 1987-05-29 フリ−ドリツヒスフエルト・ゲ−エムベ−ハ−、ケラミツク−ウント・クンストシユトツフヴエルケ 電気溶接継手もしくは電気溶接スリ−ブ

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH60595A (de) * 1912-02-03 1913-08-01 Max Toepfer Auftrage- und Trocknungsvorrichtung für Flüssigkeiten und pulverisierte feste Körper
US2001204A (en) * 1934-03-03 1935-05-14 James A Long Pipe joint and method of making the same
US2121035A (en) * 1934-08-29 1938-06-21 Babcock & Wilcox Co Method and means of joining tubular members
GB1121850A (en) * 1964-11-14 1968-07-31 Furukawa Electric Co Ltd A jointing method of pipe shaped plastics and the jointing materials
NL6601024A (ja) * 1966-01-27 1967-07-28
US3506519A (en) * 1967-01-13 1970-04-14 Susquehanna Corp Method of making interlocked welded connections between thermoplastic articles
US4035534A (en) * 1972-09-01 1977-07-12 Raychem Corporation Heat-shrinkable laminate
NL175458C (nl) * 1973-03-14 1984-11-01 Sturm Werner Werkwijze voor het vervaardigen van een lasmof voor thermoplastische buizen.
GB1573096A (en) * 1975-11-17 1980-08-13 Raychem Ltd Composite connector
FR2353381A1 (fr) * 1976-06-03 1977-12-30 Pont A Mousson Procede d'assemblage par soudure de tubes plastiques et raccord pour un tel assemblage
CH644054A5 (de) * 1980-03-31 1984-07-13 Fischer Ag Georg Schweissmuffe fuer thermoplastische materialien, verfahren und vorrichtung zu deren herstellung.
GB8526235D0 (en) * 1985-10-24 1985-11-27 Glynwed Tubes & Fittings Electrofusion coupler
DE3808229A1 (de) * 1988-03-11 1989-09-21 Vdp Versuchsanstalt Fuer Daten Muffe zum verschweissen von kunststoffrohren und -profilen
GB8805911D0 (en) * 1988-03-12 1988-04-13 Victaulic Plc Process for jointing of polyolefin bodies
DE3932807C1 (ja) * 1989-09-30 1991-05-02 Georg Fischer Ag, Schaffhausen, Ch, Niederlassung: Georg Fischer Ag, 7700 Singen, De
CH683026A5 (de) * 1991-06-18 1993-12-31 Gunzenhauser Ag J & R Schweissmuffe für Kunststoffrohre.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62118187A (ja) * 1985-11-13 1987-05-29 フリ−ドリツヒスフエルト・ゲ−エムベ−ハ−、ケラミツク−ウント・クンストシユトツフヴエルケ 電気溶接継手もしくは電気溶接スリ−ブ

Also Published As

Publication number Publication date
DE4203626A1 (de) 1993-08-12
US5255943A (en) 1993-10-26
DE4203626C2 (de) 1993-11-04
EP0555684A1 (de) 1993-08-18

Similar Documents

Publication Publication Date Title
JPH0615742A (ja) 溶着スリーブ及びその製造法
US3085438A (en) Dip pipe assembly
US6149756A (en) Method for joining plastic pipes, a joint ring used in the joining and a pipe joint provided with the method
JPH01501562A (ja) チューブを接続する方法
EP3296645A2 (en) Fiberwound tanks
JP3223977B2 (ja) ポリオレフィンから成る導管の接続部及びポリオレフィンから成る導管の接続部の製作法
JP2736804B2 (ja) 合成樹脂管継手の製造方法
CA2169391A1 (en) Multi-Wound Metal Tube, Manufacturing Method and Apparatus Therefor
JPH01153895A (ja) 接続配管部品における接続端部の被覆方法および装置
JPH0260730A (ja) プラスチック管の接続部およびその接続方法
JP2007071323A (ja) コルゲート管の接続方法
JP2757300B2 (ja) 金属製容器
JPS607591B2 (ja) クラツドパイプ製作方法
JPS6397317A (ja) バルジ加工方法
JPH0453173B2 (ja)
JPH062797A (ja) 熱融着継手
JPH06147386A (ja) 二層管の接続構造
JP4650708B2 (ja) チューブ集束体
JP2002188764A (ja) 管の締結方法
JP2005163960A (ja) パージ付きキャップ
JP3187655B2 (ja) 更生管の分岐構造
JPH0814464A (ja) 分岐サドルの取付方法
SU1655675A1 (ru) Способ получени неразъемного соединени труб
JPH09229280A (ja) ２層融着用管継手および２層融着用管継手の製造方法
JPH0251689A (ja) 管継手