JPH08230044A - Method and apparatus for welding synthetic resin material - Google Patents

Method and apparatus for welding synthetic resin material

Info

Publication number
JPH08230044A
JPH08230044A JP7038893A JP3889395A JPH08230044A JP H08230044 A JPH08230044 A JP H08230044A JP 7038893 A JP7038893 A JP 7038893A JP 3889395 A JP3889395 A JP 3889395A JP H08230044 A JPH08230044 A JP H08230044A
Authority
JP
Japan
Prior art keywords
welding
synthetic resin
welded
resin material
welded portion
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
JP7038893A
Other languages
Japanese (ja)
Inventor
Isamu Shindo
勇 進藤
Yasumi Kobayashi
保美 小林
Yoshio Sugita
喜男 杉田
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.)
AISAMU KK
Original Assignee
AISAMU KK
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 AISAMU KK filed Critical AISAMU KK
Priority to JP7038893A priority Critical patent/JPH08230044A/en
Publication of JPH08230044A publication Critical patent/JPH08230044A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • 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
    • B29C65/1412—Infrared [IR] 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
    • B29C65/14—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
    • B29C65/40—Applying molten plastics, e.g. hot melt
    • B29C65/42—Applying molten plastics, e.g. hot melt between pre-assembled parts
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5007—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like
    • B29C65/5021—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like being multi-layered
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5042—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements 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
    • B29C66/001—Joining in special atmospheres
    • B29C66/0012—Joining in special atmospheres characterised by the type of environment
    • B29C66/0014—Gaseous environments
    • B29C66/00141—Protective gases
    • 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
    • B29C66/05—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
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • 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
    • B29C66/733—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 optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence
    • B29C66/7336—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 optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light
    • B29C66/73365—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 optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light at least one of the parts to be joined being transparent or translucent to visible light
    • 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
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B29C66/8362—Rollers, cylinders or drums moving relative to and tangentially to 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/349—Cooling the welding zone on the welding spot
    • 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
    • B29C66/70—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

Abstract

PURPOSE: To rapidly, certainly and perfectly weld a synthetic resin material with excellent workability. CONSTITUTION: In a method for welding a synthetic resin material 1, synthetic resin chips are melted in a melting part 2 while inert gas is sprayed on a part 7 to be welded by a gas blowoff means 4 to be supplied by an extrusion means to be welded. If necessary, the part 7 to be welded is heated by infrared rays from a halogen lamp 5 to be welded.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】この発明は、合成樹脂材の溶接方
法とそのための溶接装置に関するものである。さらに詳
しくは、この発明は、ポリ塩化ビニール、ポリエチレ
ン、ポリプロピレン等のいわゆる合成樹脂の板やパイプ
等の溶接を効率よく、かつ確実、完全に行うことのでき
る溶接方法とその装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for welding a synthetic resin material and a welding apparatus therefor. More specifically, the present invention relates to a welding method and apparatus capable of efficiently and reliably and completely welding plates, pipes and the like of so-called synthetic resins such as polyvinyl chloride, polyethylene and polypropylene.

【０００２】[0002]

【従来の技術とその課題】従来より、各種の合成樹脂に
対する溶接方法として様々な態様のものが知られてい
る。たとえば、その代表的な合成樹脂の一つであるポリ
塩化ビニールの板もしくはパイプなどの溶接では、適当
な組成の溶接棒を用い、熱風などを吹きつけて、溶接部
を加熱すると同時に溶接棒を溶融させ、これによって溶
着して溶接している。2. Description of the Related Art Conventionally, various methods have been known as welding methods for various synthetic resins. For example, when welding PVC plates or pipes, which are one of the typical synthetic resins, use a welding rod with an appropriate composition, blow hot air, etc., to heat the welding portion and simultaneously weld the welding rod. It is melted, and is thereby welded by welding.

【０００３】一方、合成樹脂チップを溶融させ、これを
被溶接部に押出し、圧接して溶接を行う方法が提案され
ており、そのための専用装置も販売されている。これら
の装置においては、熱風供給装置によって被溶接部を予
熱し、溶融した原料チップを被溶接部に押出しながら、
同時にこれを被溶接部に圧接して、溶接する。しかしな
がら、これらの装置を使用して、溶接を行っても、溶接
速度は低く、また、装置が大型で、直線部分の溶接なら
ばまだしも複雑な形状の溶接部を溶接するには、無理が
あり、実用性に欠けるという欠点があった。On the other hand, a method has been proposed in which a synthetic resin chip is melted, extruded on a welded part, and pressed to perform welding, and a dedicated device therefor is also sold. In these devices, while preheating the welded part by the hot air supply device and extruding the molten raw material chips to the welded part,
At the same time, this is pressed against the welded portion and welded. However, even if welding is carried out using these devices, the welding speed is low, and since the devices are large, it is not possible to weld a weld of a complicated shape if it is a straight part. However, there was a drawback that it was not practical.

【０００４】近年は、産業廃棄物の貯蔵場などからの有
害物質の溶出を完全に抑止するために、貯蔵場の表面を
耐候性にすぐれたポリエチレンやポリプロピレン樹脂板
などで完全に覆い尽くし、半永久的に、有害物質の拡散
を抑止する必要に迫られているが、これらの場所で、任
意に溶接を行うには、たとえば上記のような従来の方法
や装置では対応が困難であり、迅速な溶接が可能であっ
て、しかも、確実、かつ完全な溶接が行なえる新しい高
性能溶接のための手段の実現が望まれてきた。In recent years, in order to completely suppress the elution of harmful substances from the storage areas of industrial wastes, the surfaces of the storage areas are completely covered with polyethylene or polypropylene resin plates having excellent weather resistance and are semipermanent. Therefore, it is necessary to suppress the diffusion of harmful substances, but it is difficult to perform arbitrary welding at these places with the conventional methods and devices described above, and it is not possible to quickly It has been desired to realize a new means for high-performance welding which is capable of welding, and which can perform reliable and complete welding.

【０００５】そこで、この発明は、上記のような従来の
合成樹脂材の溶接方法とその装置の問題点を解決し、従
来よりもはるかに迅速で作業性に優れ、かつ、確実、完
全な溶接を可能にする新しい合成樹脂材の溶接方法とそ
のための装置を提供することを目的としている。Therefore, the present invention solves the above-mentioned problems of the conventional welding method of a synthetic resin material and the apparatus therefor, and is much quicker and more workable than the conventional one, and is sure and complete welding. It is an object of the present invention to provide a new method for welding a synthetic resin material that enables the above and an apparatus therefor.

【０００６】[0006]

【課題を解決するための手段】この発明は、上記の課題
を解決するものとして、合成樹脂材を溶接する方法であ
って、被溶接部位に、不活性ガスを吹き付けながら合成
樹脂チップを溶融して供給し、溶接することを特徴とす
る合成樹脂材の溶接方法（請求項１）を提供する。The present invention is to solve the above-mentioned problems by a method of welding a synthetic resin material, in which a synthetic resin chip is melted while spraying an inert gas to a welded portion. A method for welding a synthetic resin material is provided (claim 1), which is characterized in that it is supplied and welded.

【０００７】また、この発明は、被溶接部位を赤外線に
より加熱して溶接する方法（請求項２）も提供する。そ
してまた、この発明は、合成樹脂材溶接のための装置で
あって、被溶接部位に合成樹脂チップを溶融して供給す
る溶融押出し部と、被溶接部位への不活性ガス吹き付け
部とを備えていることを特徴とする合成樹脂材の溶接装
置（請求項３）と、その態様としての被溶接部位の加熱
のための赤外線照射部を備えている溶接装置（請求項
４）、並びに赤外線発生手段として、ハロゲンランプ、
またはクセノンランプを、その集光手段として楕円鏡を
備えている溶接装置（請求項５）や、赤外線照射のため
のガイド手段として光ファイバーを備えている溶接装置
（請求項６）、溶接部位を直ちに押圧して圧接するため
の押圧手段を備えていることを特徴とする溶接装置（請
求項７）をも提供する。Further, the present invention also provides a method (claim 2) for heating and welding a portion to be welded with infrared rays. Further, the present invention is an apparatus for welding synthetic resin material, comprising a melt extruding portion for melting and supplying a synthetic resin chip to a welded portion, and an inert gas blowing portion to the welded portion. A welding device for synthetic resin material (claim 3), and a welding device (claim 4) provided with an infrared irradiating part for heating a welded part as its mode, and infrared ray generation. As a means, a halogen lamp,
Alternatively, a welding device equipped with a xenon lamp and an elliptical mirror as its light converging means (claim 5), a welding device equipped with an optical fiber as guide means for irradiating infrared rays (claim 6), and a welding site There is also provided a welding device (claim 7), characterized in that it comprises a pressing means for pressing and pressing.

【０００８】[0008]

【作用】この発明は、上記の通りの構成をその特徴とす
るものであるが、この特徴は、次の通りの従来技術の問
題についての詳しい検討結果に基づいている。 １）溶融した合成樹脂をそのまま溶接に使用しようとす
ると、下地と溶接板の温度が低いと、溶接強度が極端に
低くなり、実用にならない。The present invention is characterized by the constitution as described above, and this feature is based on the detailed examination result of the following problems of the prior art. 1) If the molten synthetic resin is used for welding as it is, if the temperature of the base and the welded plate is low, the welding strength becomes extremely low and it is not practical.

【０００９】２）従って、従来では、熱風によって溶接
しようとする下地と溶接板の両者を予熱しているが、熱
風を用いる場合には、熱風発生器が付加されねばなら
ず、装置が大型となり、操作性が悪くなり、現場での作
業には向かない。 ３）しかも、さらに重大な問題は、溶融した合成樹脂の
温度がある程度以上高温となれば、下地の予熱が少なく
ても、溶接強度は低くならないのではないかと考えられ
やすいが、実際には、従来の方法、装置では、溶融した
合成樹脂の温度を上げると、空気と反応して燃えてしま
い、表面が黒化して、溶接強度は極端に低下してしま
う。2) Therefore, conventionally, both the base material and the welding plate to be welded are preheated by hot air, but when hot air is used, a hot air generator must be added and the apparatus becomes large. However, the operability is poor and it is not suitable for on-site work. 3) Moreover, a more serious problem is likely to be that if the temperature of the molten synthetic resin becomes higher than a certain temperature, the welding strength will not be lowered even if the preheating of the base is small, but in reality, In the conventional method and apparatus, when the temperature of the molten synthetic resin is raised, it reacts with air and burns, the surface is blackened, and the welding strength is extremely reduced.

【００１０】これらの問題を抜本的に改善したものがこ
の発明の方法と装置であって、最も本質的な特徴は、ま
ず第１には、たとえ高温での作業であっても、空気との
反応による燃焼を防止して迅速、かつ確実な溶接を可能
とするために、溶接部位に対して不活性ガスを吹き付け
ることである。そして、第２には、赤外線照射によって
合成樹脂材を予熱することである。A radical improvement over these problems is the method and apparatus of the present invention, the most essential feature of which is that, first of all, even if working at high temperatures, In order to prevent combustion due to the reaction and to enable quick and reliable welding, an inert gas is blown to the welding site. Secondly, the synthetic resin material is preheated by infrared irradiation.

【００１１】さらに、より詳しく説明すると、この発明
においても、被溶接部位には、溶融した合成樹脂を供給
する。この場合、合成樹脂のチップを溶融して供給す
る。この時の溶融温度は、従来の方法、装置に比べてよ
り高温、たとえば５０〜１００℃以上も高温にする。そ
して、溶融した樹脂を被溶接部に押し出す際には、アル
ゴンガス、窒素ガスなどの不活性ガスを被溶接部に軽く
吹きつけながら行う。More specifically, also in the present invention, molten synthetic resin is supplied to the welded portion. In this case, a synthetic resin chip is melted and supplied. The melting temperature at this time is higher than that of the conventional method and apparatus, for example, 50 to 100 ° C. or higher. Then, when the molten resin is extruded to the welded portion, it is carried out while gently blowing an inert gas such as argon gas or nitrogen gas onto the welded portion.

【００１２】そして、通常は、上記の方法で充分である
が、さらに溶接強度を上げ、溶接速度も上げる必要があ
る場合には、赤外線照射装置からの赤外線を被溶接部に
照射して予熱しておき、上記の溶接を行う。これによ
り、従来に比べると装置も小型化し、溶接速度は、２０
倍〜３０倍以上の高速となり、溶接強度も従来法にくら
べると遙かに大きなものとなる。Usually, the above method is sufficient, but when it is necessary to further increase the welding strength and the welding speed, the infrared rays from the infrared ray irradiation device are irradiated to the welded part to preheat it. The above welding is performed. As a result, the device is smaller than the conventional one and the welding speed is 20%.
The welding speed is double to 30 times or more, and the welding strength is much higher than that of the conventional method.

【００１３】もちろん、この発明が対象とする合成樹脂
の種類、その形状に特段の限定はない。また溶融樹脂に
ついても同様であるが、このチップの溶融による樹脂
は、被溶接合成樹脂材と同一もしくはその類縁のものが
好適に用いられる。溶接条件も、対象とする樹脂に応じ
て適宜に設定されることになる。そこで以下実施例を示
し、さらに詳しくこの発明について説明する。Of course, there is no particular limitation on the kind and shape of the synthetic resin targeted by the present invention. The same applies to the molten resin, but the resin obtained by melting the chip is preferably the same as or similar to the synthetic resin material to be welded. The welding conditions will also be appropriately set according to the target resin. Therefore, the present invention will be described in more detail with reference to the following examples.

【００１４】[0014]

【実施例】添付した図面の図１は、この発明による合成
樹脂材の溶接方法の概要を示したものである。この図１
においては、被溶接合成樹脂板（１）、合成樹脂チップ
の溶融部（２）、溶融合成樹脂押し出し手段（３）、不
活性ガスの吹き出し手段（４）、ハロゲンランプ
（５）、楕円鏡（６）を示している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 of the accompanying drawings shows an outline of a welding method for synthetic resin materials according to the present invention. This Figure 1
In, a synthetic resin plate to be welded (1), a molten portion (2) of a synthetic resin chip, a molten synthetic resin pushing means (3), an inert gas blowing means (4), a halogen lamp (5), an elliptic mirror ( 6) is shown.

【００１５】この図１の例における溶接法は以下の通り
である。すなわち、下地樹脂板（１）の被溶接部（７）
に不活性ガス吹出し手段（４）から、不活性ガスを軽く
吹きつけながら、ハロゲンランプ（５）からの赤外線を
楕円鏡（６）を介して照射し、被溶接部（７）を加熱す
る。次いで、溶融部（２）において合成樹脂チップを溶
融し、溶融した樹脂（８）を押し出し手段（３）によっ
て押し出しながら、被溶接部（７）に付着させる。溶融
された樹脂（８）は、被溶接部（７）に溶着し、次第に
温度の低下に伴って固化する。The welding method in the example of FIG. 1 is as follows. That is, the welded portion (7) of the base resin plate (1)
Infrared light from the halogen lamp (5) is radiated through the elliptic mirror (6) while the inert gas blowing means (4) is lightly blown to the to-be-welded part (7). Next, the synthetic resin chip is melted in the melting portion (2), and the molten resin (8) is attached to the welded portion (7) while being extruded by the extruding means (3). The molten resin (8) is welded to the welded part (7) and gradually solidifies as the temperature decreases.

【００１６】溶接を進行させると、溶着した樹脂（８）
の表面が空気に触れるようになり、発煙が見られるよう
になるが、これは表面だけで、溶接部（７）には何らの
影響は無い。図２は別の例を示したものであって、溶接
板（１２）を用いて合成樹脂板（１１）の溶接を行って
いる。As welding progresses, the deposited resin (8)
The surface of the will come into contact with the air and smoke will be seen, but this is only the surface and has no effect on the weld (7). FIG. 2 shows another example, in which the synthetic resin plate (11) is welded using the welding plate (12).

【００１７】すなわち、先ず、被溶接部（１３）と溶接
板（１２）の境界部に不活性ガス吹付け手段（１４）に
よって不活性ガスを吹きつけながら、ハロゲンランプ
（１５）および楕円鏡（１６）によって赤外線を照射
し、被溶接合成樹脂板（１１）の表面を加熱する。次い
で、溶融部（１７）において合成樹脂チップを溶融し、
溶融した樹脂（１８）を押し出し手段（１９）によって
押出しながら、装置本体を矢印方向へ進行させ、それに
ともなって、溶接板（１２）の表から、ローラー（２
０）で溶接板（１２）を被溶接部（１３）に押しつけ
る。溶融樹脂（１８）は溶接板（１２）の前方および両
側に押し出される。That is, first, while the inert gas blowing means (14) blows an inert gas onto the boundary between the welded part (13) and the welding plate (12), the halogen lamp (15) and the elliptical mirror ( Infrared rays are radiated by 16) to heat the surface of the synthetic resin plate (11) to be welded. Next, the synthetic resin chips are melted in the melting section (17),
While the molten resin (18) is being extruded by the extruding means (19), the apparatus main body is advanced in the direction of the arrow, and along with this, the roller (2
The welding plate (12) is pressed against the welded portion (13) with 0). The molten resin (18) is extruded to the front and both sides of the welding plate (12).

【００１８】図３は、溶接後の状態を示したものであ
る。なお、上記の方法によって溶接する場合の溶接板
（１２）には特に制限は無いが、溶接板として、透明も
しくは、半透明の溶接板を使用した場合には、溶接終了
後、被溶接部に、ところどころ白濁した部位が観察され
る。この白濁した部位は、溶接が不十分であることが確
認できたので、完工検査が目視で行え、溶接不良による
事故の発生を防止するにも極めて好都合である。FIG. 3 shows the state after welding. The welding plate (12) for welding by the above method is not particularly limited, but when a transparent or translucent welding plate is used as the welding plate, it is applied to the welded part after the welding is completed. , Some areas of cloudiness are observed. Since it was confirmed that welding was insufficient at this clouded portion, the completion inspection can be visually performed, which is extremely convenient for preventing an accident due to defective welding.

【００１９】なお、溶接装置で被溶接部の予熱用に使用
している赤外線照射装置は、赤外線源として、ハロゲン
ランプを使用した装置が最も有用性に優れている。ハロ
ゲンランプの他にも、赤外線源として、クセノンラン
プ、半導体レーザなどがあるが、ハロゲンランプは、単
価も安く、寿命も通常の使用では、１０００時間を軽く
超える連続使用が可能であり、重量も軽く、操作も簡単
である。The infrared irradiating device used for preheating the welded part in the welding device is most useful when using a halogen lamp as an infrared source. In addition to halogen lamps, there are infrared sources such as xenon lamps and semiconductor lasers. Halogen lamps have a low unit price and a long service life, which can be continuously used for more than 1000 hours, and they are heavy. It is light and easy to operate.

【００２０】本装置を用いて、幅、５０ｍｍの溶接板を
溶接するのに、毎分５〜１０ｍの高速で、完全な溶接が
可能となった。Using this apparatus, a welding plate having a width of 50 mm can be completely welded at a high speed of 5 to 10 m / min.

【００２１】[0021]

【発明の効果】以上詳しく説明した通り、この発明によ
って、従来よりもはるかに効率的、迅速に、しかも確
実、完全な溶接が可能となる。As described in detail above, the present invention enables much more efficient, faster, reliable and complete welding than ever before.

【図面の簡単な説明】[Brief description of drawings]

【図１】この発明の一例を示した断面図である。FIG. 1 is a sectional view showing an example of the present invention.

【図２】別の例を示した断面図である。FIG. 2 is a sectional view showing another example.

【図３】図２の方法による溶接後の状態を示した斜視図
である。FIG. 3 is a perspective view showing a state after welding by the method of FIG.

【符号の説明】[Explanation of symbols]

１ 被溶接合成樹脂板 ２ 合成樹脂チップ溶融部 ３ 押し出し手段 ４ 不活性ガス吹出し手段 ５ ハロゲンランプ ６ 楕円鏡 ７ 被溶接部 ８ 溶融樹脂 １１ 被溶接合成樹脂板 １２ 溶接板 １３ 被溶接部 １４ 不活性ガス吹付け手段 １５ ハロゲンランプ １６ 楕円鏡 １７ 合成樹脂チップ溶融部 １８ 溶融樹脂 １９ 押し出し手段 1 Welded Synthetic Resin Plate 2 Synthetic Resin Chip Melting Section 3 Extruding Means 4 Inert Gas Blowing Means 5 Halogen Lamp 6 Elliptical Mirror 7 Welded Parts 8 Molten Resin 11 Welded Synthetic Resin Plates 12 Welded Plates 13 Welded Parts 14 Inert Gas blowing means 15 Halogen lamp 16 Elliptical mirror 17 Synthetic resin chip melting part 18 Molten resin 19 Extrusion means

Claims (7)

【特許請求の範囲】[Claims] 【請求項１】 合成樹脂材を溶接する方法であって、被
溶接部位に、不活性ガスを吹き付けながら合成樹脂チッ
プを溶融して供給し、溶接することを特徴とする合成樹
脂材の溶接方法。1. A method for welding a synthetic resin material, which comprises melting and supplying a synthetic resin chip while spraying an inert gas onto a welded portion, and then welding. . 【請求項２】 被溶接部位を赤外線により加熱して溶接
する請求項１の溶接方法。2. The welding method according to claim 1, wherein the portion to be welded is heated by infrared rays for welding. 【請求項３】 合成樹脂材溶接のための装置であって、
被溶接部位に合成樹脂チップを溶融して供給する溶融押
出し部と、被溶接部位への不活性ガス吹き付け部とを備
えていることを特徴とする合成樹脂材の溶接装置。3. An apparatus for welding synthetic resin material, comprising:
A welding apparatus for a synthetic resin material, comprising: a melt extruding portion for melting and supplying a synthetic resin chip to a welded portion and an inert gas spraying portion to the welded portion. 【請求項４】 請求項１の装置において、被溶接部位の
加熱のための赤外線照射部を備えていることを特徴とす
る溶接装置。4. The welding apparatus according to claim 1, further comprising an infrared irradiation unit for heating a welded portion. 【請求項５】 赤外線発生手段として、ハロゲンラン
プ、またはクセノンランプを、その集光手段として楕円
鏡を備えている請求項４の溶接装置。5. The welding device according to claim 4, wherein a halogen lamp or a xenon lamp is provided as the infrared ray generating means, and an elliptical mirror is provided as the light converging means. 【請求項６】 赤外線照射のためのガイド手段として光
ファイバーを備えている請求項４または５の溶接装置。6. The welding device according to claim 4, further comprising an optical fiber as a guide means for irradiating infrared rays. 【請求項７】 請求項３ないし６のいずれかの溶接装置
において、溶接部位を直ちに押圧して圧接するための押
圧手段を備えていることを特徴とする溶接装置。7. The welding device according to claim 3, further comprising a pressing means for immediately pressing and welding the welded portion.
JP7038893A 1995-02-27 1995-02-27 Method and apparatus for welding synthetic resin material Pending JPH08230044A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7038893A JPH08230044A (en) 1995-02-27 1995-02-27 Method and apparatus for welding synthetic resin material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7038893A JPH08230044A (en) 1995-02-27 1995-02-27 Method and apparatus for welding synthetic resin material

Publications (1)

Publication Number Publication Date
JPH08230044A true JPH08230044A (en) 1996-09-10

Family

ID=12537889

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7038893A Pending JPH08230044A (en) 1995-02-27 1995-02-27 Method and apparatus for welding synthetic resin material

Country Status (1)

Country Link
JP (1) JPH08230044A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100417032B1 (en) * 2001-03-14 2004-02-05 주식회사 테크소닉 Union Method for Polyethylen Pipe
JP2006512221A (en) * 2002-12-27 2006-04-13 ラーザークイップメント アーゲー Method and apparatus for welding thermoplastic moldings, in particular contour welding of three-dimensional moldings
JP2015038815A (en) * 2012-10-23 2015-02-26 ヒメジ理化株式会社 Light-condensing heating device
CN105814334A (en) * 2013-12-10 2016-07-27 威巴克公司 Pneumatic spring component
DE102019130989A1 (en) * 2019-11-15 2021-05-20 Vibracoustic Ag Air suspension component

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100417032B1 (en) * 2001-03-14 2004-02-05 주식회사 테크소닉 Union Method for Polyethylen Pipe
JP2006512221A (en) * 2002-12-27 2006-04-13 ラーザークイップメント アーゲー Method and apparatus for welding thermoplastic moldings, in particular contour welding of three-dimensional moldings
JP2015038815A (en) * 2012-10-23 2015-02-26 ヒメジ理化株式会社 Light-condensing heating device
CN105814334A (en) * 2013-12-10 2016-07-27 威巴克公司 Pneumatic spring component
JP2017502220A (en) * 2013-12-10 2017-01-19 ビブラコースティック ゲゼルシャフト・ミット・ベシュレンクター・ハフトゥングＶｉｂｒａｃｏｕｓｔｉｃ Ｇｍｂｈ Air spring parts
US10161472B2 (en) 2013-12-10 2018-12-25 Vibracoustic Gmbh Air spring component
DE102019130989A1 (en) * 2019-11-15 2021-05-20 Vibracoustic Ag Air suspension component
DE102019130989B4 (en) 2019-11-15 2023-05-17 Vibracoustic Se 1air spring component
DE102019130989B8 (en) 2019-11-15 2023-07-20 Vibracoustic Se air spring component

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