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JPS63160821A - 電気溶着装置 - Google Patents

電気溶着装置

Info

Publication number
JPS63160821A
JPS63160821A JP61313649A JP31364986A JPS63160821A JP S63160821 A JPS63160821 A JP S63160821A JP 61313649 A JP61313649 A JP 61313649A JP 31364986 A JP31364986 A JP 31364986A JP S63160821 A JPS63160821 A JP S63160821A
Authority
JP
Japan
Prior art keywords
temperature
joint member
voltage
time
heater
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.)
Granted
Application number
JP61313649A
Other languages
English (en)
Other versions
JP2578104B2 (ja
Inventor
Kazuhisa Ariyoshi
和久 有吉
Kenji Kawamoto
健二 川本
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.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical 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 Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP61313649A priority Critical patent/JP2578104B2/ja
Publication of JPS63160821A publication Critical patent/JPS63160821A/ja
Application granted granted Critical
Publication of JP2578104B2 publication Critical patent/JP2578104B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3468—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91211—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods
    • B29C66/91212—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods involving measurement means being part of the welding jaws, e.g. integrated in the welding jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91221—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91411—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91441—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time
    • B29C66/91443—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being non-constant over time following a temperature-time profile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91651—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91651—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating
    • B29C66/91653—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating by controlling or regulating the voltage, i.e. the electric potential difference or electric tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • B29C66/91931—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined
    • B29C66/91935—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined lower than said fusion temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • B29C66/961—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving a feedback loop mechanism, e.g. comparison with a desired value
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • 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
    • B29C66/94—Measuring or controlling the joining process by measuring or controlling the time
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/959—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables
    • B29C66/9592—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 characterised by specific values or ranges of said specific variables in explicit relation to another variable, e.g. X-Y diagrams

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Plasma & Fusion (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、パイプ部材と継手部材とを溶着によって接合
させる電気溶着装置に関する。
（従来の技術） 従来、ポリエチレン等の熱可塑性材料などからなるパイ
プ部材と継手部材とを接合する場合、継手部材のパイプ
部材に接触する表面側に加熱コイルを装着し、この加熱
コイルに電流を流すことにより、所定の温度まで継手部
材とパイプ部材との接合部分を温度上昇させて溶着する
電気溶着装置が提供されている（例えば、特開昭５８−
１３１０２５号公報）。
（発明が解決しようとする問題点） しかるに、この種の電気溶着装置は、外気温に関係なく
電力供給時間を設定するものであるから、外気温が非常
に低い時には電力供給が十分でなく、確実な溶着状態を
得ることができないといった問題があった。
（問題点を解決するための手段） 本発明に係わる電気溶着装置は、パイプ部材と継手部材
とを接合するに当たり、パイプ部材と接触する継手部材
の表面側に加熱要素が設けられ、該加熱要素は周囲の温
度実測値によって供給電力量が変更される制御電源に接
続されたものである。
（作用） 外気温が通常の時には、加熱要素は通常の電力供給時間
だけ電力供給される、一方外気温が非常に低い時には通
常の電力供給時間が補正される。
この補正は、例えば所定の電力量を供給するのに通常よ
りも長い時間を要するような特性にする手法や、又は電
力の供給が開始されてから一定時間は通常の電力供給量
よりも小さい電力量を供給する手法がとられる。
（実施例） 以下、本発明の実施例について図面を参照して説明する
。
第１図は本発明に係わる電気溶着装置の実施例を示すブ
ロック図である。
この電気溶着装置は、ポリエチレン等の熱可塑性樹脂か
らなる２つのパイプ部材１．１の各端部を、同じくポリ
エチレン等の熱可塑性樹脂からなる継手部材（ソケット
）２の両端開口部から略中央までそれぞれ挿入し、この
継手部材２の管受口の内周面側に設けられたコイル状の
加熱ヒータ３の発熱作用によって前記パイプ部材１．１
と前記継手部材２とを溶着して接合する例を示すもので
、交流発電機（図示省略）等の外部電源から供給される
交流電圧を制御電源部４を介して所定の電圧に変換して
前記加熱ヒータ３に供給している。該交流電圧は、電源
ヒユーズ５．５を介して電圧制御端子を有するトライア
ック７に供給される。このトライアック７は、電圧制御
端子にトリガ電圧が印加された位相から次にきたるゼロ
クロス点までの間導通される半導体素子であり、トリガ
電圧はゲートドライブ回路８から出力される。このゲー
トドライブ回路８は、マイクロコンピュータ９から出力
されるスイッチング信号を出力ドライブ回路ｌＯにて適
当なレベルまで増幅した信号によって駆動制御されてい
る。また、この出力ドライブ回路１０からの信号によっ
てパワースイッチ１１が制御されている。前記トライア
ック７の出力量である電圧は、パワースイッチ１１を介
して接続端子１３ａ、１３ｂに供給されている。この接
続端子１３ａ、１３ｂは、継手部材２内に装着された前
記加熱ヒータ３の両端部３ａ、３ｂに接続され該継手部
材２の外周面に突出状に形成された電圧印加端子１２ａ
、１２ｂに接続されるべき端子である。前記パワースイ
ッチ１１は電源異常が発生したときにＯＦＦされるもの
で、例えばマグネットコンダクタ−等で構成される。パ
ワースイッチ１１の出力側の端子１４ａ、１４ｂはトラ
イアック７の出力電圧を検出する端子である。この端子
１４ａ、１４ｂで検出された電圧値は、降圧トランス等
からなる降圧回路１５を経て、アナログ前処理回路１６
に入力される。このアナログ前処理回路１６は前記端子
１４ａ、１４ｂで検出される非正弦波形の実効値を示す
アナログ直流電圧に変換する回路である。そして、この
アナログ前処理回路１６で変換出力されたアナログ直流
電圧は、Ａ／Ｄコンバータ１７にてデジタル量に変換さ
れ、前記マイクロコンピュータ９に取り込まれる。一方
、前記トライアック７の入力側には前記外部電源の電圧
情報を検出するための端子１８ａ、１８ｂが設けられ、
この端子１８ａ、１８ｂで検出された交流電圧は、降圧
回路１９で所定の比率に降圧された後、ゼロクロス検出
回路２ｏに入力され、この入力された小振幅の正弦波の
ゼロクロスポイントで適当な幅の方形波パルスが前記マ
イクロコンピュータ９に入力される。このゼロクロス検
出回路２０は、例えば、ゼロクロスディテクターとエツ
ジ検出ロジックとで構成される。また、前記接続端子１
３ａ、１３ｂには継手部材２の周囲温度（外気温）を測
定する温度センサ３６（第２図参照）が一体的に組み込
まれており、この温度センサ３６で測定された周囲温度
が温度情報としてマイクロコンピュータ９に入力される
。この温度センサ３６は実際には継手部材２の表面温度
（界面温度）を測定している。すなわち、継手部材２に
形成゛された電圧印加端子１２ａ（１２ｂ）と接続端子
１３ａ（１３ｂ）とを示す第２図において、接続端子１
３ａ（１３ｂ）は、円筒状に形成されたソケット部３０
の内部に、主電極ケーブル３１の先端に設けられた主電
極レセプタクル３２と情報伝達ケーブル３３の先端に設
けられた補助電極レセプタクル３４とがそれぞれ配置さ
れ、これら両レセプタタル３２．３４の中央位置に、温
度情報伝達ケーブル３５に接続された温度センサ３６が
配置された構造となされている。このように構成された
接続端子１３ａ（１３ｂ）のソケット部３０を継手部材
２に形成された電圧印加端子１２ａ（１２ｂ）に装着し
、電圧印加端子１２ａ（１２ｂ）に突出して設けられた
主電極３７及び補助電極３８を主電極レセプタクル３２
及び補助電極レセプタクル３４に嵌合することにより、
温度センサ３６が電圧印加端子１２ａ（１２ｂ）の先端
面３９に密着するようになされている。
前記マイクロコンピュータ９には、前記端子１４ａ、１
４ｂ及び１８ａ、１８ｂで検出される電圧情報及び前記
温度センサ３６で検出される温度情報が取り込まれてい
る他に、通電時間設定部２１と印加電圧設定部２２と通
電開始／終了指示部２３とで設定又は指示された情報が
取り込まれている。
特に、通電時間設定部２１は接続コネクタ２４により任
意に取り外しが可能に構成されている。印加電圧設定部
２２は、前記接続端子１３ａ、１３ｂから継手部材２側
に供給される実効値電圧を設定するものであり、継手部
材２の種類、サイズ、材質などにに応じた最適な印加電
圧の値が手動設定される。また、前記通電時間設定部２
１が接続コネクタ２４に接続されていない時には、例え
ば前記継手部材２側に付加されたコード（例えばバーコ
ード）で設定された該継手部材２の種類情報、サイズ情
報、材料情報などを光学的読取装置（例えばバーコード
リーグ）で読み込んで、電力供給時間が決定される。前
記通電開始／終了指示部２３はスタートボタン、ストッ
プボタンで構成され、前記マイクロコンピュータ９の作
動を開始又は終了させる。なお、マイクロコンピュータ
９は基本クロック発生回路２５から出力される基本クロ
ックをもとに演算を実行し、制御に必要な時間情報に変
換する。
特に、本例では、温度センサ３６で検出された周囲温度
が低い時（例えば２０℃以下の時）、第３図及び第４図
に示す制御がなされる。すなわち、第３図は通電開始か
ら一定時間（’ｒｔ秒）までを通常時に印加する電圧よ
りも低い電圧（通常印加電圧の１への電圧）で予熱を行
い、７３秒後に通常加熱に移行するように制御を行うも
のであり、第４図は通電開始から一定時間（Ｔ、′秒）
までを通常時（２０℃以上の時）に印加する電圧で予熱
し、Ｔ１′秒後に通常の加熱に移行するように制御を行
う場合を示している。つまり、第４図に示す制御は、第
３図に示す余熱電圧を加熱電圧と等しくすることにより
、実質的に加熱時間の補正を行ったことになる。
メモリ２６は前記端子１４ａ、１４ｂ及び１８ａ、１８
ｂで検出された情報を処理する手順を記憶しているとと
もに、処理過程の途中で出現したデータ類が格納されて
いる。
次に、前記トライアック７の電圧制御素子に印加される
制御信号の発生タイミングについて説明する。
まず、前記印加電圧設定部２２にて、接続端子１３から
継手部材２の加熱ヒータ３に供給すべき電圧値が設定さ
れ、しかも通電時間設定部２１にて、継手部材２の種類
情報、サイズ情報、材料情報などに基いて通電時間が設
定されているとする。
また、本例の制御手法では、通電時間設定部２１で設定
された時間に相当するデジタル値をカウンタレジスタ（
図示省略）に記憶し、この値をゼロクロス点の検出の度
に前記基本クロックの発生タイミングに同期してデクリ
メントし、このカウンタレジスタの内容が零になった時
に前記制御信号が発生されるようになされている。しが
も、カウンタレジスタの値は電圧偏差に比例して所定の
補正がされる。
しかして、周囲温度が２０℃以上の時は通常の制御プロ
グラムに従って溶着動作が行われ、２０℃以下になると
上記した第３図又は第４図に示すいずれかの制御動作を
選択して溶着動作が行われる。
なお、上記実施例では、継手部材２としてソケットの例
を示しているが、この継手部材としては、レデューサ、
チーズ、キャンプ、エルボなどのパイプ部材の端部に外
嵌して装着するもの及びサドル、タッピングサドル、サ
ービスチーなどパイプ部材の外周面に押し当てて融着す
るものにも適用できる。
（発明の効果） 以上述べたように、本発明によれば、たとえ外気温が低
い場合においても一定の安定した溶着状態を得ることが
できる。
【図面の簡単な説明】
第１図は本発明に係わる電気溶着装置の実施例を示すブ
ロック図、第２図は温度センサの組み込み状態の詳細を
示す説明図、第３図及び第４図は外気温が低い場合の制
御手法例を説明するための曲線図である。 １・・・パイプ部材　　　　２・・・継手部材３・・・
加熱ヒータ　　　　４・・・制御電源部７・・・トライ
アック　　２０・・・ゼロクロス検出回路２１・・・通
電時間設定部　３６・・・温度センサ特許出願人　積水
化学工業株式会社 代表者　廣１）馨 有２図 第３図 界ａｏ５艮度−加熱時間特性　（予熱電圧−／シ加無電
圧）１４図

Claims (1)

    【特許請求の範囲】
  1. １）パイプ部材と継手部材とを接合するに当たり、パイ
    プ部材と接触する継手部材の表面側に加熱要素が設けら
    れ、該加熱要素は周囲の温度実測値によって供給電力量
    が変更される制御電源に接続されたことを特徴とする電
    気溶着装置。
JP61313649A 1986-12-24 1986-12-24 電気溶着装置 Expired - Fee Related JP2578104B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61313649A JP2578104B2 (ja) 1986-12-24 1986-12-24 電気溶着装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61313649A JP2578104B2 (ja) 1986-12-24 1986-12-24 電気溶着装置

Publications (2)

Publication Number Publication Date
JPS63160821A true JPS63160821A (ja) 1988-07-04
JP2578104B2 JP2578104B2 (ja) 1997-02-05

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Application Number Title Priority Date Filing Date
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Country Link
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0716931A (ja) * 1993-06-29 1995-01-20 Toa Koukiyuu Keishiyu Valve Seizo Kk 樹脂製品の電気溶融着装置
JPH0716930A (ja) * 1993-06-29 1995-01-20 Toa Koukiyuu Keishiyu Valve Seizo Kk 樹脂製品の電気溶融着装置
JPH07164530A (ja) * 1993-12-15 1995-06-27 Toa Koukiyuu Keishiyu Valve Seizo Kk 電気溶融着装置
CN110789133A (zh) * 2019-10-17 2020-02-14 浙江大学 一种基于电熔接头实时温度场数据的熔区控制方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5316089A (en) * 1976-07-30 1978-02-14 Furukawa Electric Co Ltd Method of adhesion of plastic materials by fusion passing electric current through electric heating wire
JPS61274920A (ja) * 1985-05-16 1986-12-05 セントラル・プラステイクス・カンパニ− 熱可塑性管状継手の電熱溶接法及び電熱溶接装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5316089A (en) * 1976-07-30 1978-02-14 Furukawa Electric Co Ltd Method of adhesion of plastic materials by fusion passing electric current through electric heating wire
JPS61274920A (ja) * 1985-05-16 1986-12-05 セントラル・プラステイクス・カンパニ− 熱可塑性管状継手の電熱溶接法及び電熱溶接装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0716931A (ja) * 1993-06-29 1995-01-20 Toa Koukiyuu Keishiyu Valve Seizo Kk 樹脂製品の電気溶融着装置
JPH0716930A (ja) * 1993-06-29 1995-01-20 Toa Koukiyuu Keishiyu Valve Seizo Kk 樹脂製品の電気溶融着装置
JPH07164530A (ja) * 1993-12-15 1995-06-27 Toa Koukiyuu Keishiyu Valve Seizo Kk 電気溶融着装置
CN110789133A (zh) * 2019-10-17 2020-02-14 浙江大学 一种基于电熔接头实时温度场数据的熔区控制方法

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