JPH01110128A - 管状熱可塑性部材の突合わせ溶接方法および装置 - Google Patents

管状熱可塑性部材の突合わせ溶接方法および装置

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Publication number
JPH01110128A
JPH01110128A JP63233824A JP23382488A JPH01110128A JP H01110128 A JPH01110128 A JP H01110128A JP 63233824 A JP63233824 A JP 63233824A JP 23382488 A JP23382488 A JP 23382488A JP H01110128 A JPH01110128 A JP H01110128A
Authority
JP
Japan
Prior art keywords
tubular
welded
shielding plate
temperature
tube
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
JP63233824A
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English (en)
Other versions
JPH0572860B2 (ja
Inventor
Peter Kunz
ペテル・クンツ
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.)
Georg Fischer AG
Original Assignee
Georg Fischer AG
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Application filed by Georg Fischer AG filed Critical Georg Fischer AG
Publication of JPH01110128A publication Critical patent/JPH01110128A/ja
Publication of JPH0572860B2 publication Critical patent/JPH0572860B2/ja
Granted 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B29B13/023—Half-products, e.g. films, plates
    • B29B13/024—Hollow bodies, e.g. tubes or profiles
    • B29B13/025—Tube ends
    • 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
    • B29C65/1429—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 way of heating the interface
    • B29C65/1432—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 way of heating the interface direct heating of the surfaces 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
    • 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
    • B29C65/1496—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 masks
    • 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
    • B29C66/003—Protecting areas of the parts to be joined from overheating
    • 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
    • B29C66/116—Single bevelled joints, i.e. one of the parts to be joined being bevelled in the joint area
    • B29C66/1162—Single bevel to bevel joints, e.g. mitre 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
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/324—Avoiding burr formation
    • B29C66/3242—Avoiding burr formation on the inside of a tubular or hollow article
    • 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
    • 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
    • B29C66/348—Avoiding melting or weakening of the zone directly next to the joint area, e.g. by cooling
    • 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
    • B29C66/70—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
    • B29C66/90—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
    • B29C66/919—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (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】 本発明は、請求項１の上位概念で特徴を示した管状の熱
可塑性部材の端部を突合わせ溶接する方法及びその実施
に必要な装置に関するものである。
平面加工した管端部の突合わせ溶接方法において、直接
、加熱鏡板を当接して熔融し、引続き調整可能な圧力で
接合することが既知である（例えば、ドイツ連邦共和国
特許出願公告第２２１２０５５号公報参照）。接合に際
して、管状部材の内周および外周には溶接ビードが形成
され、内側の溶接ビードは貫流断面を低減し、流れ抵抗
を増大する不都合を生じる。また、内側部分においては
、熔融材料が軟化することにより、必要な溶接圧力が得
られない問題がある。
本発明の目的は、溶接結合に際して、内周の溶接ビード
の発生を防止するような、冒頭に述べた方法およびその
実施に必要な装置を提供することにある。
この目的を達成するため、本発明は、請求項１の方法お
よび請求項５の装置を特徴とする。
本発明の方法および装置における更に有利な特徴は、従
属請求項に掲げた。
以下、図示実施例につき、本発明を説明する。
第１図に示すように、一対の管状部材１ａ、　ｌｂの端
部を、溶接装置のクランプ部材２ａ、２ｂによって互い
に所定の距離で離間した位置で同軸線上に保持する。
２個のクランプ部材２ａ、２ｂの一方は、軸線方向に変
位可能である。
管端部の間で旋回可能な加熱鏡板３は、放射熱を発生し
、管端部に対して調整可能な距離り、に設ける。管端部
は、管の外周１１から内周１２へ管の内方に向は傾斜す
る傾斜面１０を有する。
加熱鏡板３には、遮蔽板４を距離を置いて交換可能とし
て固定し、かかる加熱鏡板の外径は、それぞれの溶接す
べき管の内径にほぼ合致する。
第３図は、管状部材の傾斜端および熱放射５の作用を示
している。
第４図に示す加熱鏡板放射面６からの距離りに依存する
温度勾配Ｔを曲線ＴＩｌ！で表す。
Ｔｓは使用した熱可塑性材料の熔融温度を、ＴＳｍａｘ
は許容最大熔融温度を表す。
Ｄｌ　は放射面６から管状部材１ａ、　ｌｂの外側端１
３までの距離を、Ｄ２は同じく内側端１４までの距離を
表す。内側端１４における温度Ｔ２は、出来る限り熔融
温度Ｔ、に近く、温度Ｔ１　は許容最大熔融温度Ｔ、よ
り低くなければならない。かかる温度勾配Ｔゆは熱出力
、加熱時間、距離りの調節、傾斜面１０の変化および／
又は遮蔽板４の直径および位置により決定することがで
きる。また、加熱鏡板３は、外側部分から内側部分に向
は熱出力が低減するものとすることも可能である。
このようにして、第４図による最適な温度勾配Ｔ、は、
第３図に示した三角形状の熔融ゾーンを生ずる。
端部が熔融した管状部材材ｌａ、　ｌｂを制御して突合
わせることにより、例えば、クランプ装置２ａにより矢
印７（第１図）に示す方向に部材１ａを変位することに
より溶接が行われる。その際、熔融ゾーン１５は、著し
く外側に変形し、外周１１に延在する溶接ビード１６を
生ずる（第２図）。
上述の場合、内側端部１４は、全く、あるいは極めて僅
かしか膨出せず、溶接圧力を支持することができる。従
って、内周には極めて小さな溶接ビードしか形成されず
、多くの場合には皆無である。
【図面の簡単な説明】
第１図は２本の管状部材の溶接時における加熱状態を示
す溶接装置の概略断面図、 第２図は、溶接結合の完了状態を示す断面図、第３図は
、加熱鏡板と管端部との部分拡大断面図、 第４図は、温度勾配を示す線図である。

Claims (1)

  1. 【特許請求の範囲】 １、管状の熱可塑性部材の端部を突合わせ溶接する方法
    であって、両方の管端部を熱可塑性材料が熔融するまで
    加熱し、引き続いて加圧接合するものにおいて、外周か
    ら内周へと低下する温度勾配を放射熱によって溶接すべ
    き管端部に生ぜしめて両方の管端部を調整して接合し、
    これにより内壁には充分な溶接が行われて変形が全く生
    じないか、あるいは、せいぜい最小限の変形が生じるに
    過ぎず、外壁には最適な溶接ビードを伴う良好な溶接結
    合が生ずるようにすることを特徴とする管状熱可塑性部
    材の突合わせ溶接方法。 ２、請求項１記載の方法において、前記温度勾配を、熱
    源と管端面との間の距離をそれぞれ相違させることによ
    り生ぜしめることを特徴とする方法。 ３、請求項２記載の方法において、溶接すべき管端部を
    外周から内周へと管端部に沿って傾斜させることにより
    管端部の突合わせに際して溶接ビードが内周で外側へ変
    位し、熔融した内周領域での継ぎ目圧力を比較的小さく
    して、外周に向かってより多くの材料を熔融させること
    を特徴とする方法。 ４、請求項１〜３のいずれか一項に記載の方法において
    、管端部の内周に適合した遮蔽板により熱放射を遮蔽す
    ることによって、管の内周に必要な最低温度を伴う望ま
    しい温度勾配を達成することを特徴とする方法。 ５、請求項１〜４のいずれか一項に記載の方法を実施す
    るための放射熱を発生する加熱鏡板（３）を具えた装置
    において、少なくとも一つの加熱鏡板放射面（６）に遮
    蔽板（４）を固定したことを特徴とする管状熱可塑性部
    材の突合わせ溶接装置。 ６、請求項５記載の装置において、遮蔽板（４）を、加
    熱鏡板放射面（６）に対して離間させたことを特徴とす
    る装置。 ７、請求項５または６記載の装置において、遮蔽板（４
    ）は、交換可能として固定し、かかる遮蔽板の外径は、
    溶接すべき管状部材（１ａ、１ｂ）の内径にそれぞれ概
    ね一致することを特徴とする装置。
JP63233824A 1987-09-23 1988-09-20 管状熱可塑性部材の突合わせ溶接方法および装置 Granted JPH01110128A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3682/87A CH673433A5 (ja) 1987-09-23 1987-09-23
CH3682/87-0 1987-09-23

Publications (2)

Publication Number Publication Date
JPH01110128A true JPH01110128A (ja) 1989-04-26
JPH0572860B2 JPH0572860B2 (ja) 1993-10-13

Family

ID=4261252

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63233824A Granted JPH01110128A (ja) 1987-09-23 1988-09-20 管状熱可塑性部材の突合わせ溶接方法および装置

Country Status (7)

Country Link
EP (1) EP0312712B2 (ja)
JP (1) JPH01110128A (ja)
AT (1) ATE63850T1 (ja)
CH (1) CH673433A5 (ja)
DE (1) DE3863049D1 (ja)
DK (1) DK166998B1 (ja)
ES (1) ES2022956T5 (ja)

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JPH04229231A (ja) * 1990-04-27 1992-08-18 Georg Fischer Ag プラスチック製部品の突き合わせ溶接装置
JP2007502227A (ja) * 2003-06-13 2007-02-08 アンダーグラウンド・ソリューションズ・インコーポレイテッド 導管の融着方法
JP2009279910A (ja) * 2008-05-26 2009-12-03 Fukuoka Institute Of Technology 熱可塑性プラスチック材の溶着装置および溶着方法
US7842769B1 (en) 2003-06-13 2010-11-30 Underground Solutions Technologies Group, Inc. Polyvinyl chloride formulations
JP2021074970A (ja) * 2019-11-11 2021-05-20 トヨタ自動車株式会社 赤外線溶着機

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DE4113408A1 (de) * 1991-04-22 1992-10-29 Donald Herbst Verfahren zum verschweissen zweier hohlkoerper
US5328541A (en) * 1991-12-11 1994-07-12 Kureha Kagaku Kogyo Kabushiki Kaisha Method of welding tubular products of polyarylene sulfide and welded tubular structure
DE4331465A1 (de) * 1993-09-16 1995-03-23 Teves Gmbh Alfred Leuchtengehäuse oder Lichtscheibe mit im Querschnitt verringerter Schweißzugabe und Fahrzeugleuchte mit derartigem Leuchtengehäuse oder Lichtscheibe
EP0662390A3 (en) * 1993-12-28 1996-08-21 Kureha Chemical Ind Co Ltd Apparatus and method for welding elements of thermoplastic material.
DE4416518A1 (de) * 1994-05-10 1995-11-16 Armin Dommer Vorrichtung zum stirnseitigen Verschweißen von Kunststoffprofilen, insbesondere von Rohren
DE4428767C2 (de) * 1994-08-13 1996-09-05 Rehau Ag & Co Verfahren zum Verschweissen von Rohrmuffen
US5855720A (en) * 1996-03-13 1999-01-05 Johnson; Orin S. Clamping head for use in joining plastic extrusions and method thereof
WO2002004209A1 (en) * 2000-07-06 2002-01-17 Wrb Company, Inc. Heat fusion of plastic pipe without inner fusion bead
DE10164515C1 (de) * 2001-12-19 2003-07-03 Donald Herbst Verfahren zum Verschweißen zweier Hohlkörper
KR100590619B1 (ko) * 2004-08-05 2006-06-19 이보영 다중벽관 접합용 열판 및 접합방법
DE602007009987D1 (de) * 2006-07-07 2010-12-02 Caridianbct Inc Verfahren zum Verbinden thermoplastischer Schläuche
FI3205479T3 (en) 2016-02-09 2024-01-03 Fischer G Rohrleitungssysteme Ag INTERNAL REFLECTIVE RING

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04229231A (ja) * 1990-04-27 1992-08-18 Georg Fischer Ag プラスチック製部品の突き合わせ溶接装置
JP2007502227A (ja) * 2003-06-13 2007-02-08 アンダーグラウンド・ソリューションズ・インコーポレイテッド 導管の融着方法
JP2010162898A (ja) * 2003-06-13 2010-07-29 Underground Solutions Technologies Group Inc 導管の融着方法
US7842769B1 (en) 2003-06-13 2010-11-30 Underground Solutions Technologies Group, Inc. Polyvinyl chloride formulations
US7915366B1 (en) 2003-06-13 2011-03-29 Underground Solutions Technologies Group, Inc. Polyvinyl chloride formulations
US8058378B1 (en) 2003-06-13 2011-11-15 Underground Solutions Technologies Group, Inc. Polyvinyl chloride formulations
US8128853B2 (en) 2003-06-13 2012-03-06 Underground Solutions Technologies Group, Inc. Fusion process for conduit
US8178640B2 (en) 2003-06-13 2012-05-15 Underground Solutions Technologies Group, Inc. Polyvinyl chloride formulations
JP2009279910A (ja) * 2008-05-26 2009-12-03 Fukuoka Institute Of Technology 熱可塑性プラスチック材の溶着装置および溶着方法
JP2021074970A (ja) * 2019-11-11 2021-05-20 トヨタ自動車株式会社 赤外線溶着機

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DK526988D0 (da) 1988-09-22
DK166998B1 (da) 1993-08-16
ES2022956T5 (es) 1995-11-01
EP0312712B2 (de) 1995-08-16
JPH0572860B2 (ja) 1993-10-13
CH673433A5 (ja) 1990-03-15
ATE63850T1 (de) 1991-06-15
EP0312712B1 (de) 1991-05-29
EP0312712A1 (de) 1989-04-26
DE3863049D1 (de) 1991-07-04
ES2022956B3 (es) 1991-12-16
DK526988A (da) 1989-03-24

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