JPH07276502A - 熱可塑性部材の溶着接合方法 - Google Patents

熱可塑性部材の溶着接合方法

Info

Publication number
JPH07276502A
JPH07276502A JP6098036A JP9803694A JPH07276502A JP H07276502 A JPH07276502 A JP H07276502A JP 6098036 A JP6098036 A JP 6098036A JP 9803694 A JP9803694 A JP 9803694A JP H07276502 A JPH07276502 A JP H07276502A
Authority
JP
Japan
Prior art keywords
welded
welding
conductive material
welding member
thermoplastic
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
JP6098036A
Other languages
English (en)
Inventor
Sunao Ashida
直 芦田
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.)
Ashida Manufacturing Co Ltd
Original Assignee
Ashida Manufacturing Co 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 Ashida Manufacturing Co Ltd filed Critical Ashida Manufacturing Co Ltd
Priority to JP6098036A priority Critical patent/JPH07276502A/ja
Publication of JPH07276502A publication Critical patent/JPH07276502A/ja
Pending legal-status Critical Current

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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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B29C65/1425—Microwave radiation
    • 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
    • B29C66/50—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
    • 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
    • B29C66/70—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
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • 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
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • 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
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8324—Joining or pressing tools pivoting around one axis
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1477—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation making use of an absorber or impact modifier
    • B29C65/148—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation making use of an absorber or impact modifier placed at the interface
    • 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
    • B29C66/70—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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • 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
    • B29C66/822—Transmission mechanisms
    • B29C66/8223—Worm or spindle mechanisms
    • 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
    • B29C66/826—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps without using a separate pressure application tool, e.g. the own weight of the parts to be joined
    • B29C66/8264—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps without using a separate pressure application tool, e.g. the own weight of the parts to be joined using the thermal expansion 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
    • B29C66/828—Other pressure application arrangements
    • B29C66/8286—Hand placed clamps

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

Abstract

(57)【要約】 【目的】 従来のコネクターを無くして、溶着部材１の
製作コストを低減すると共に施工時間を短縮する。更に
溶着部材１と被溶着部材２との溶着状態を安定させ品質
的信頼性を高める。 【構成】 被溶着部材２に接する近辺に導電材１ａを埋
没させた熱可塑性の溶着部材１に、被溶着部材２を密着
させて保持し、次いで溶着部材の導電材１ａにマイクロ
波を照射し電磁界を発生させて導電材１ａを発熱させ、
導電材近辺の溶着部材１とそれに接する部分の被溶着部
材２とを溶解させて、その両者を溶着接合させる。

Description

【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、熱可塑性部材を溶着接
合させる方法であって、詳しくは、ガス、上下水道など
に用いる熱可塑性樹脂製の管継手と管とにマイクロ波を
照射して熱溶解させる熱可塑性部材の溶着接合方法に関
するものである。
【０００２】
【従来の技術】従来、熱可塑性部材を溶着接合させる方
法として、例えば、特開平４ー４１２２４号記載の技術
が知られている。この技術は、継手本体が熱可塑性樹脂
で形成され、加熱要素が前記継手本体の内周部に埋設さ
れ、前記加熱要素の両端と接続した端子が、前記加熱要
素埋設領域の外周部に形成された端子用凹部に配設さ
れ、インジケータ用凹部が、前記端子を貫通して形成さ
れているものである。そして、加熱要素の両端と接続し
た端子が、前記加熱要素埋設領域の外周部に形成された
端子用凹部に配設され、インジケータ用凹部が、前記端
子を貫通して形成されているので、コントローラのコネ
クタを間違いなく端子用凹部に差し込んで通電すること
ができる。また、加熱要素の発熱により、継手本体の内
周部及び継手本体に差し込んだ熱可塑性樹脂の外周部が
溶解すると、熱膨張による圧力で溶融樹脂の一部がイン
ジケータ用凹部に浸入するようになり、更に、加熱要素
の発熱により周囲の樹脂が加熱膨張して融着し継手を接
着させるようにしたものである。
【０００３】
【発明が解決しようとする課題】しかしながら、この技
術は、加熱要素を発熱させる手段として、外部より電気
エネルギーを端子を介して行なっているため、コネクタ
を端子に接続したり、外したりする施工に時間がかかる
だけでなく、継手本体を製作する段階で継手本体に端子
を埋め込む必要があり、製作コストが高くなっている。
更に、端子部における接触抵抗のバラツキが直接溶着状
態の不安定さになり、品質的な面からもその信頼性に問
題がある。
【０００４】本発明は、前述の課題を解決することを目
的として開発したものである。
【０００５】
【課題を解決するための手段】本発明の理論として、誘
電物質にマイクロ波磁界Ｈを照射すると、Maxwellの電
磁方程式で明らかなように、次の式で表わされる。 ｒｏｔ Ｈ＝Ｊ＋（δＤ／δｔ）・・・・（１） Ｊ＝σＥ がベクトルで表示される。ここで、Ｊ：伝導
電流、σ：電気伝導度、Ｅ：電界強度、Ｄ：変位電流成
分、ｔ：照射時間、（δＤ／δｔ）：変位電流密度であ
る。そして、マイクロ波磁界Ｈが誘電物質に照射される
と、（δＤ／δｔ）の変位電流成分によりマイクロ波損
失を生じ、熱が発生するが、一方、σＥで誘電物質に電
流が流れジュール熱により発熱する。
【０００６】従来、マイクロ波電界での食品などの加熱
時、その食品中に異物として金属が混入していると、金
属が異常発熱し金属周辺の食品などを焦がしたり、極端
な時には発火させる現象は広く経験されてきたところで
あるが、この現象を積極的に利用した事例はほとんど知
られていなかった。
【０００７】本発明は、前記理論に基づき、誘電物質と
して溶着部材に金属製の導電材を埋設せしめ、マイクロ
波電界内で金属の誘電加熱を生じさせる現象を積極的に
利用したものである。
【０００８】本発明は、具体的には、図１ないし図４に
示すように、熱可塑性の被溶着部材２に接する近辺に導
電材１ａを埋設せしめた熱可塑性の溶着部材１に、被溶
着部材２を密着させて保持し、次いで、前記溶着部材の
導電材１ａにマイクロ波を照射し電磁界を発生させて導
電材１ａを発熱させ、導電材１ａ近辺の溶着部材１とそ
れに接する部分の被溶着部材２とを溶解させて、その両
者を溶着接合させるようにしたものである。
【０００９】
【実施例】以下、添付図面に従い本発明の実施例を説明
する。本発明を実施する装置は、図１ないし図４に示す
ように、熱可塑性の被溶着部材２に接する近辺に導電材
１ａを埋設せしめた熱可塑性の溶着部材１と被溶着部材
２とを接合して収容すると共に電磁波をシールドするよ
う設けたオーブンＡと、前記接合する溶着部材１と被溶
着部材２とを密着させて保持する部材保持手段Ｃと、マ
イクロ波を照射して熱可塑性の溶着部材１に埋設せしめ
た導電材１ａを発熱させる導電材発熱手段Ｃと、前記導
電材発熱手段により溶着せしめた溶着部材１と被溶着部
材２とを速やかに冷却硬化させる部材冷却手段Ｄと、よ
り構成したものである。
【００１０】次に、各部材及び各装置、各手段について
その詳細を説明する。被溶着部材２は、熱可塑性樹脂製
より成り、例えば、ポリエチレン樹脂、ポリプロピレン
樹脂、ポリ塩化ビニール樹脂、ポリブデン樹脂などが好
ましい。また、用途及び形状的には、配管用のソケッ
ト、チーズ、エルボ、レジューサ、サドル、キャップな
どの管継手、管、容器などである。
【００１１】溶着部材１は、熱可塑性樹脂より成り、図
３に示すように、被溶着部材２に接する近辺に導電材１
ａを埋設せしめたもので、熱可塑性樹脂としては、例え
ば、ポリエチレン樹脂、ポリプロピレン樹脂、ポリ塩化
ビニール樹脂、ポリブデン樹脂などが好ましい。また、
用途及び形状的には、配管用のソケット、チーズ、エル
ボ、レジューサ、サドル、キャップなどの管継手、管、
容器などである。また、導電材１ａは、例えば、ニッケ
ルククロム、銅、銅・ニッケル合金、アンガン・ニッケ
ル合金、クロメル、鉄、鉄クロムなど各種金属製の線や
小片であり、それら線材や小片を被溶着部材２に接する
近辺に合わせて埋没できる形状、例えば、本実施例では
被溶着部材が管であるためコイル状にしたものである。
なお、溶着部材１と被溶着部材２ａとの違いは材質及び
形状的に共通するものがあるが、溶着部材１には、被溶
着部材２に接する近辺に導電材１ａを埋設せしめたとこ
ろに特徴がある。
【００１２】オーブンＡは、図１及び図２に示すよう
に、接続させた溶着部材１と被溶着部材２とを保持する
受け具５を支持するケーシング３と、被溶着部材２を保
持する押え具６を備えた開閉用の蓋４と、該蓋を閉じて
接続させる溶着部材１と被溶着部材２とを収容すると共
に保持できるよう構成したものである。なお、蓋４の内
側上端部位置には後述するマイクロ波照射部１３が設け
られており、該マイクロ波照射部は同軸ケーブル１２に
接続されているが、蓋４が開閉により移動する場合は、
同軸ケーブル１２をフレキシブルなものを用いている。
また、オーブンＡの別の例として、図４に示すように、
ケーシングと蓋とを一体的に構成し、一体的に構成され
たケーシング３ａには受け具５を備え、側面より押え具
６を移動可能に構成してもよく、本発明は本実施例には
限定されない。
【００１３】部材保持手段Ｂは、接続する溶着部材１と
被溶着部材２とを密着して保持すると共にその保持を解
放可能に設けたもので、図１、図２に示す受け具５と押
え具６とは被溶着部材２の外形に合わせて形成せしめ、
その被溶着部材２のクランプは、図２に示すように、前
記オーブンの蓋４のケーシング３との接合部の一部に切
り溝７を設け、該切り溝部のケーシング端部にボルト８
を回動可能に設け、該ボルトの先端部にはレバー付ナッ
ト９を螺子合わせ、蓋４を閉じた時、ボルト８を切り溝
７部に挿入しレバー付ナット９を廻して蓋４をクランプ
し、押え具６が被溶着部材２を押えて保持できるよう構
成したものである。なお、他の実施例として、図４に示
す一体的に構成されたケーシング３ａには受け具５を備
え、側面より押え具６を移動台６ａにて移動可能に設
け、受け具５と押え具６とを開けて被溶着部材２を取り
付け後、押え具６を移動させて被溶着部材２をクランプ
し保持できるように構成してもよく、また、蓋４を閉じ
た時、該蓋の重量で被溶着部材２が保持できる場合は、
特別なクランプ機構は不要であり、本発明は本実施例に
は限定されない。また、部材保持手段ＢはオーブンＡ内
のマイクロ波が外部に漏洩しないようシールド効果を考
慮した構造としている。
【００１４】導電材発熱手段Ｃは、図１に示すように、
オーブンＡの外部位置にマイクロ波発振器１０を設置
し、前記オーブンＡの上方部位置にはマイクロ波照射部
１３を設け、マイクロ波発振器１０は同軸導波管変換器
１１〜同軸ケーブル１２〜マイクロ波照射部１３を介し
て電磁波をシールドするオーブンＡに接続されている。
そして、マイクロ波発振器１０を作動させることによ
り、同軸導波管変換器１１〜同軸ケーブル１２〜マイク
ロ波照射部１３を介してマイクロ波が溶着部材（実施例
では熱可塑性ソケット）に埋没せしめた導電材１ａに照
射できるよう構成したものである。
【００１５】部材冷却手段Ｄは、図２に示すように、ケ
ーシング３にはオーブンＡ内に冷風を送り込む冷却ブロ
ア１４を設け、蓋４には排気口１５を設け、また、図４
に示すケーシング３の上部側面には排気口１５を設け、
導電材発熱手段Ｃにより溶着せしめた溶着部材１と被溶
着部材２とを速やかに冷却硬化させるよう構成したもの
である。
【００１６】次に、その作用を説明する。図３に示すよ
うに、熱可塑性の被溶着部材２に接する近辺に導電材１
ａを埋設せしめた熱可塑性の溶着部材１に、被溶着部材
２を密着させ、次いで、オーブンＡに設けた受け具５に
取り付け、オーブンの蓋４を閉じてクランプし、密着さ
せた溶着部材１と被溶着部材２とを拘束保持すると共に
シールドする。次いで、マイクロ波発振器１０を発振さ
せ同軸導波管変換器１１〜同軸ケーブル１２〜マイクロ
波照射部１３から溶着部材の導電材１ａにマイクロ波を
照射し電磁界を発生させて導電材１ａを発熱させ、その
発熱により導電材１ａ周囲の樹脂を加熱し溶解し、それ
に接する部分の被溶着部材２とを溶解膨張させて、溶着
部材１と被溶着部材２とを溶着接合させる。次いで、部
材冷却手段Ｄを作動させて溶着せしめた溶着部材１と被
溶着部材２とを速やかに冷却硬化させる。そして、クラ
ンプを外し蓋４を開け、接合された溶着部材１と被溶着
部材２とを取外し一工程が完了する。
【００１７】前記方法により、以下の条件にて溶着部材
１と被溶着部材２とを溶解させ、溶着部材と被溶着部材
とを溶着接合させた。 実施例 対象物 溶着部材：エスロンガス用ＥＦ継手 被溶着部材：エスロンガス用ポリエチレンパイプ 材質 両者ともポリエチレン 寸法 ５０Ａ マイクロ波発振器 ２,４５０MHZ １.５KW 加熱溶着時間 ２５秒 その結果、従来の加熱要素に通電して発熱させる方法と
同じ溶着接合ができ、強度的にも遜色のない製品が得ら
れた。
【００１８】
【発明の効果】本発明は、以上のように構成しているか
ら、被溶着部材に接する近辺に導電材を埋設せしめた溶
着部材に端子を埋め込む必要がないため、溶着部材の製
作コストが低減できる。また、その端子にコネクターを
接続することも無く導電材を発熱させて導電材周囲の樹
脂を加熱し溶解させることができるため、コネクターの
着脱する施工時間が短縮できる。更に、コネクターを接
続する端子部の接触抵抗によるバラツキが無くなり溶着
状態が安定し品質的信頼性も高まるなど多様な効果が期
待できる。
【図面の簡単な説明】
【図１】本発明の一実施例を示す一部破断した概略側面
図。
【図２】図１の一部破断した概略正面図
【図３】本発明を構成する被溶着部材に接する近辺に導
電材を埋設せしめた溶着部材と被溶着部材を接続し密着
させた状態を示す一部破断した概略側面図。
【図４】本発明を構成するオーブンと部材保持手段の他
の実施例を示す概略正面図。
【符号の説明】
Ａ オーブン Ｂ 部材保持手段 Ｃ 導電材発熱手段 Ｄ 部材冷却手段 １ 溶着部材 １ａ 導電材 ２ 被溶着部材 ３ ケーシング ３ａ ケーシング ４ 蓋 ５ 受け具 ６ 押え具 ７ 切り溝 ８ ボルト ９ レバー付ナット １０ マイクロ波発振器 １１ 同軸導波管変換器 １２ 同軸ケーブル １３ マイクロ波照射部 １４ 冷却ブロア １５ 排気口

Claims (1)

    【特許請求の範囲】
  1. 【請求項１】 熱可塑性の被溶着部材２に接する近辺に
    導電材１ａを埋設せしめた熱可塑性の溶着部材１に、被
    溶着部材２を密着させて保持し、次いで、前記溶着部材
    の導電材１ａにマイクロ波を照射し電磁界を発生させて
    導電材１ａを発熱させ、導電材１ａ近辺の溶着部材１と
    それに接する部分の被溶着部材２とを溶解させて、その
    両者を溶着接合させることを特徴とする熱可塑性部材の
    溶着接合方法。
JP6098036A 1994-04-11 1994-04-11 熱可塑性部材の溶着接合方法 Pending JPH07276502A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6098036A JPH07276502A (ja) 1994-04-11 1994-04-11 熱可塑性部材の溶着接合方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6098036A JPH07276502A (ja) 1994-04-11 1994-04-11 熱可塑性部材の溶着接合方法

Publications (1)

Publication Number Publication Date
JPH07276502A true JPH07276502A (ja) 1995-10-24

Family

ID=14208830

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6098036A Pending JPH07276502A (ja) 1994-04-11 1994-04-11 熱可塑性部材の溶着接合方法

Country Status (1)

Country Link
JP (1) JPH07276502A (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002292739A (ja) * 2001-03-28 2002-10-09 Acty:Kk 熱可塑性樹脂製パイプの接合方法及びその接合装置
JP2008111459A (ja) * 2006-10-30 2008-05-15 Maezawa Kyuso Industries Co Ltd 電磁融着継手
JP2013076426A (ja) * 2011-09-29 2013-04-25 Sekisui Chem Co Ltd 電気融着継手の接合用治具
US11207844B2 (en) 2016-10-20 2021-12-28 Ke Kelit Kunststoffwerk Gmbh Inductive connecting of plastic objects by a coil arrangement with multiple individual coils

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002292739A (ja) * 2001-03-28 2002-10-09 Acty:Kk 熱可塑性樹脂製パイプの接合方法及びその接合装置
JP2008111459A (ja) * 2006-10-30 2008-05-15 Maezawa Kyuso Industries Co Ltd 電磁融着継手
JP2013076426A (ja) * 2011-09-29 2013-04-25 Sekisui Chem Co Ltd 電気融着継手の接合用治具
US11207844B2 (en) 2016-10-20 2021-12-28 Ke Kelit Kunststoffwerk Gmbh Inductive connecting of plastic objects by a coil arrangement with multiple individual coils
EP3529054B1 (de) * 2016-10-20 2024-01-24 BRUGG Rohrsystem AG Induktives verschweissen von kunststoffrohren mittels einer spulenanordnung mit mehreren einzelspulen

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