JPH05245936A - Composite body comprising thermoplastic rein tubular body and metallic tubular body - Google Patents

Composite body comprising thermoplastic rein tubular body and metallic tubular body

Info

Publication number
JPH05245936A
JPH05245936A JP4050518A JP5051892A JPH05245936A JP H05245936 A JPH05245936 A JP H05245936A JP 4050518 A JP4050518 A JP 4050518A JP 5051892 A JP5051892 A JP 5051892A JP H05245936 A JPH05245936 A JP H05245936A
Authority
JP
Japan
Prior art keywords
tubular body
pipe
resin
thermoplastic resin
metallic
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.)
Withdrawn
Application number
JP4050518A
Other languages
Japanese (ja)
Inventor
Hiroyuki Kobayashi
博幸 小林
Tetsuo Hamada
哲夫 浜田
Shinichi Yasuda
信一 安田
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.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry 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 Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP4050518A priority Critical patent/JPH05245936A/en
Publication of JPH05245936A publication Critical patent/JPH05245936A/en
Withdrawn legal-status Critical Current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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/66—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined
    • B29C65/665—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined using shrinking during 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • 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
    • B29C66/50—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
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain a composite body having good connecting strength and airtightness by disposing an organic alkoxisilane compound condensation product on the connecting part having a thermoplastic resin tubular body and a metallic tubular body being shrink-fitted thereto. CONSTITUTION:In the case of resinification of metallic components for automobiles and home electric appliances, in the connecting techniques of a resin pipe and a metallic pipe, the thermoplastic resin tubular body 1 as a resin pipe is heated through heating within an oven in order to expand the inner wall of the resin tubular body 1 in its diameter. In the next place, a metallic tubular body 1 as a metallic pipe is inserted in the resin tubular body 1, which is applied with an organic alkoxisilane compound on the connecting surface and has an outer diameter approximately equal to the inner diameter of the resin tubular body 1 at an ordinary temperature. In this manner, the alkoxisilane compound is heated by the resin tubular body 1 so as to bring about hydrolysis and condensation reaction, with the result that an organic alkoxisilane compound condensation body 3 having a three-dimensional crosslinked structure is produced therebetween so that both of them 1, 2 are firmly connected.

Description

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

【０００１】[0001]

【産業上の利用分野】最近、自動車燃費向上、家電製品
の持ち運び性の改善要求等に端を発して、自動車、家電
製品等の金属部品の樹脂化が盛んに行われている。一例
として、自動車のアンダーフード部品やエアコン等の冷
暖房器具内部品における金属パイプ類の樹脂化検討が、
押出し成形やブロー成形技術の進歩等により積極的に試
みられるようになってきている。このような場合、一つ
の重要なポイントは樹脂パイプ両端をタンク、ヒーター
等の部品の金属パイプ部分との接合技術であり、作業の
簡便性のみならず、接合強度と気密性を兼ね備えた接合
方法が必要となっている。[Industrial application] Recently, metal parts of automobiles, home appliances and the like have been actively resinified, in response to demands for improving fuel efficiency of automobiles and improving portability of home appliances. As an example, we are investigating the use of resin for metal pipes in underhood parts of automobiles and parts inside air conditioning equipment such as air conditioners
With the progress of extrusion molding and blow molding technology, attempts have been made positively. In such a case, one important point is the joining technology that joins both ends of the resin pipe to the metal pipe part of parts such as tanks and heaters, and not only the workability but also the joining strength and airtightness. Is needed.

【０００２】本発明は、このような用途に好適な熱可塑
性樹脂管状体（以下単にパイプとも呼称する）と金属管
状体から成る複合体を提供するものである。The present invention provides a composite body composed of a thermoplastic resin tubular body (hereinafter also simply referred to as a pipe) and a metal tubular body suitable for such use.

【０００３】[0003]

【従来の技術】従来、熱可塑性樹脂パイプと金属パイプ
との接合方法としては、ゴム製のパッキン等を用いる方
法、エポキシ樹脂を接着剤として用いる方法（特開昭６
０−１７２７１５号公報）等が良く知られている。しか
し、ゴム製のパッキン等を用いる接合方法の場合は、接
合強度が不十分な場合が多く、更に接合工程の繁雑さと
いう問題がある。また、エポキシ樹脂を接着剤として用
いる接合方法の場合は、接着剤中の溶剤による作業環境
の悪化、接合部におけるストレスクラックの発生等の問
題があり満足のいく接合方法とは言えなかった。2. Description of the Related Art Conventionally, as a method of joining a thermoplastic resin pipe and a metal pipe, a method of using a rubber packing or the like, and a method of using an epoxy resin as an adhesive agent (Japanese Patent Laid-open No. Sho 6-62)
No. 0-172715) is well known. However, in the case of a joining method using a rubber packing or the like, the joining strength is often insufficient, and there is a problem that the joining process is complicated. Further, the joining method using an epoxy resin as an adhesive cannot be said to be a satisfactory joining method due to problems such as deterioration of the working environment due to the solvent in the adhesive and occurrence of stress cracks at the joint.

【０００４】[0004]

【発明が解決しようとする課題】本発明は、接合工程の
繁雑さ、接着剤中の溶剤による作業環境の悪化、樹脂管
状体接合部におけるストレスクラックの発生等がなく、
かつ、接合強度と気密性を兼ね備えるという課題を解決
した熱可塑性樹脂管状体と金属管状体から成る複合体を
提供するものである。SUMMARY OF THE INVENTION The present invention eliminates the complexity of the joining process, the deterioration of the working environment due to the solvent in the adhesive, the occurrence of stress cracks in the resin tubular body joint, and the like.
Further, the present invention provides a composite body composed of a thermoplastic resin tubular body and a metal tubular body, which solves the problem of having both bonding strength and airtightness.

【０００５】[0005]

【課題を解決するための手段】すなわち、本発明は熱可
塑性樹脂管状体と金属管状体が焼嵌めしてなる接合部に
有機アルコキシシラン化合物縮合体が介在していること
を特徴とする熱可塑性樹脂管状体と金属管状体からなる
複合体である。本発明で言う熱可塑性樹脂管状体と金属
管状体から成る複合体において用いられる熱可塑性樹脂
管状体は、エンジニアリング樹脂から汎用樹脂まで、す
なわち、ポリアミド、ポリオキシメチレン、変性ポリフ
ェニレンエーテル、ポリブチレンテレフタレート、ポリ
エチレンテレフタレート、ポリカーボネート、ポリフェ
ニレンサルファイド、ポリエチレン、ポリプロピレン、
ＡＢＳ樹脂、ポリスチレン、塩化ビニル樹脂、スチレン
・ブタジエンブロック共重合体等が挙げられる。これら
は必ずしも単体である必要はなく、これらをベースポリ
マーとするポリマーアロイ（例えばエラストマーを配合
した耐衝撃性樹脂）あるいは、ガラス繊維等の無機質強
化剤により強化した複合樹脂であっても構わない。That is, the present invention is characterized in that an organic alkoxysilane compound condensate is present at a joint formed by shrink-fitting a thermoplastic resin tubular body and a metal tubular body. It is a composite body composed of a resin tubular body and a metal tubular body. The thermoplastic resin tubular body used in the composite consisting of the thermoplastic resin tubular body and the metal tubular body referred to in the present invention is from engineering resin to general-purpose resin, that is, polyamide, polyoxymethylene, modified polyphenylene ether, polybutylene terephthalate, Polyethylene terephthalate, polycarbonate, polyphenylene sulfide, polyethylene, polypropylene,
Examples thereof include ABS resin, polystyrene, vinyl chloride resin, styrene / butadiene block copolymer and the like. These do not necessarily have to be simple substances, and may be a polymer alloy (for example, an impact resistant resin containing an elastomer) using these as a base polymer, or a composite resin reinforced by an inorganic reinforcing agent such as glass fiber.

【０００６】また、熱可塑性樹脂管状体の製法として
は、押出成形または、ブロー成形が代表的であり、とり
わけ周方向に延伸させた管状体が好適である。これら熱
可塑性樹脂管状体の形状としては、管状体をなしている
ものであれば特に制限されるものではなく、全体が管状
をなしているもの以外に構造体の一部としての接合部の
みが管状をなしているものも含まれる。また管の大きさ
についても特に制約はないが、内径５〜１００ｍｍのも
のが実用的である。Further, as a typical method for producing the thermoplastic resin tubular body, extrusion molding or blow molding is typical, and a tubular body stretched in the circumferential direction is particularly preferable. The shape of these thermoplastic resin tubular bodies is not particularly limited as long as it is a tubular body, and only the joint part as a part of the structure other than the tubular body as a whole is formed. It also includes a tubular shape. The size of the pipe is not particularly limited, but a pipe having an inner diameter of 5 to 100 mm is practical.

【０００７】金属管状体としては、アルミニウム、アル
ミニウム合金、銅、銅合金、鉄、鉄合金、ステンレス、
ステンレス合金等公知のあらゆる金属からなるパイプ、
リング、フランジ等の管状体を用いることができるが、
アルミニウム等の表面に酸化被膜を有する金属管状体が
好適である。ここで言う金属管状体の形状としては、上
記の熱可塑性樹脂管状体と接合部が合う限り特に制約さ
れるものではない。なお、複合体の接合部においては熱
可塑性樹脂管状体、金属管状体のどちらが外層となって
も構わない。As the metal tubular body, aluminum, aluminum alloy, copper, copper alloy, iron, iron alloy, stainless steel,
A pipe made of any known metal such as stainless alloy,
Although tubular bodies such as rings and flanges can be used,
A metal tubular body having an oxide film on the surface of aluminum or the like is suitable. The shape of the metal tubular body referred to here is not particularly limited as long as the above-mentioned thermoplastic resin tubular body and the joint portion match. It should be noted that either the thermoplastic resin tubular body or the metal tubular body may serve as the outer layer at the joint portion of the composite body.

【０００８】本発明において接合部介在物として用いら
れる有機アルコキシシラン化合物縮合体としては、一般
にカップリング剤として用いられるアルコキシシラン化
合物をベースにしたものが好ましく、例えば、γ−アミ
ノプロピルトリメトキシシラン、Ｎ−β−（アミノエチ
ル）γ−アミノプロピルトリメトキシシラン、γ−アミ
ノプロピルトリエトキシシラン、α−アミノエチルトリ
エトキシシラン、α−アミノプロピルトリエトキシシラ
ン、α−アミノブチルトリエトキシシラン、ビニルトリ
エトキシシラン、ビニルトリス（βメトキシエトキシ）
シラン、γ−（メタクリロキシプロピル）トリメトキシ
シラン、β−グリシドキシプロピルトリメトキシシラン
等を加水分解の後、縮合せしめた化合物を挙げることが
できる。The organoalkoxysilane compound condensate used as a joint inclusion in the present invention is preferably based on an alkoxysilane compound generally used as a coupling agent, for example, γ-aminopropyltrimethoxysilane, N-β- (aminoethyl) γ-aminopropyltrimethoxysilane, γ-aminopropyltriethoxysilane, α-aminoethyltriethoxysilane, α-aminopropyltriethoxysilane, α-aminobutyltriethoxysilane, vinyltri Ethoxysilane, vinyl tris (β-methoxyethoxy)
Examples include compounds obtained by condensing silane, γ- (methacryloxypropyl) trimethoxysilane, β-glycidoxypropyltrimethoxysilane and the like after hydrolysis.

【０００９】これら有機アルコキシシラン化合物縮合体
は、複合体を形成する金属管状体の種類により特に指定
されないが、熱可塑性樹脂管状体の種類との間には好適
な組み合わせがあり、アミノ基を有するものに対しては
ポリアミド系樹脂、変性ポリフェニレンエーテル、ポリ
フェニレンサルファイド等が、ビニル基を有するものに
対してはポリオレフィン系樹脂、ポリエステル系樹脂等
が、エポキシ基を有するものに対してはポリエステル系
樹脂、塩化ビニル樹脂等が好適である。These organoalkoxysilane compound condensates are not particularly specified depending on the type of metal tubular body forming the composite, but there is a suitable combination with the type of thermoplastic resin tubular body, and they have an amino group. Polyamide resin for those, modified polyphenylene ether, polyphenylene sulfide, etc., polyolefin resin for those having a vinyl group, polyester resin, etc., polyester resin for those having an epoxy group, Vinyl chloride resin and the like are suitable.

【００１０】次に、本発明の熱可塑性樹脂管状体と金属
管状体から成る複合体における接合方法は、熱可塑性樹
脂管状体の加熱後収縮による接合方法、これに熱カシメ
を併用した接合方法等を行う際に、両管状体間に有機ア
ルコキシシラン化合物縮合体を介在させて行う。以下、
本発明の熱可塑性樹脂管状体と金属管状体から成る複合
体作成方法の一例として、熱可塑性樹脂管状体の加熱後
収縮による接合方法を利用する場合について説明を行
う。Next, the joining method in the composite of the thermoplastic resin tubular body and the metal tubular body of the present invention includes a joining method by shrinking after heating the thermoplastic resin tubular body, a joining method using thermal caulking in combination with this. When performing, the organic alkoxysilane compound condensate is interposed between both tubular bodies. Less than,
As an example of the method for producing a composite of a thermoplastic resin tubular body and a metal tubular body of the present invention, a case where a joining method by shrinking after heating a thermoplastic resin tubular body is used will be described.

【００１１】接合を行う熱可塑性樹脂管状体を予めオー
ブン中における熱風加熱、電熱ヒーター等により加熱を
行い、熱可塑性樹脂管状体の内径を熱膨張により広げて
おくが、この際の加熱温度は、熱可塑性樹脂管状体の融
点または軟化点よりも１０〜５０℃低い温度とするのが
好ましい。また加熱方法としては、オーブン中における
熱風加熱が容易であり望ましい。The thermoplastic resin tubular body to be joined is previously heated by hot air heating in an oven, an electric heater or the like to expand the inner diameter of the thermoplastic resin tubular body by thermal expansion. The heating temperature at this time is The temperature is preferably 10 to 50 ° C. lower than the melting point or softening point of the thermoplastic resin tubular body. As a heating method, hot air heating in an oven is easy and desirable.

【００１２】この加熱膨張せしめた熱可塑性樹脂管状体
中に、接合部表面にアルコキシシラン化合物を塗布した
常温時の熱可塑性樹脂管状体の内径と同じ、もしくは若
干大きい外径を持つ金属管状体を挿入する。これにより
金属管状体に塗布されたアルコキシシラン化合物は、熱
可塑性樹脂管状体により加熱され加水分解、縮合反応を
起こし、三次元架橋構造を持った有機アルコキシシラン
化合物縮合体が生成する（図１参照）。In this heat-expanded thermoplastic resin tubular body, a metal tubular body having an outer diameter equal to or slightly larger than the inner diameter of the thermoplastic resin tubular body at room temperature, in which an alkoxysilane compound is applied to the joint surface, is applied. insert. As a result, the alkoxysilane compound applied to the metal tubular body is heated by the thermoplastic resin tubular body to cause hydrolysis and condensation reaction, and an organic alkoxysilane compound condensate having a three-dimensional crosslinked structure is produced (see FIG. 1). ).

【００１３】この際、金属管状体へのアルコキシシラン
化合物の塗布方法は特に問わないが、アルコキシシラン
化合物を金属管状体接合部表面に塗布後、すぐに熱可塑
性樹脂管状体中に挿入することが好ましい。またここ
で、アルコキシシラン化合物を塗布した金属管状体を熱
可塑性樹脂管状体に挿入前、もしくは、挿入後にオーブ
ン中における熱風加熱、電熱ヒーター、高周波誘導加熱
等により加熱することも可能である。At this time, the method of applying the alkoxysilane compound to the metal tubular body is not particularly limited, but it is possible to insert the alkoxysilane compound into the thermoplastic resin tubular body immediately after coating the surface of the joint portion of the metal tubular body. preferable. Further, here, the metal tubular body coated with the alkoxysilane compound can be heated by hot air heating, electric heater, high frequency induction heating or the like in an oven before or after insertion into the thermoplastic resin tubular body.

【００１４】金属管状体を熱可塑性樹脂管状体中に挿入
する際には、熱可塑性樹脂管状体を予め加熱し、熱膨張
により内径を広げてあるため、常温では挿入することの
できない外径を有する金属管状体を容易に挿入すること
ができる。熱可塑性樹脂管状体と金属管状体間の接合部
の長さは、接合部の径によっても異なるが、接合強度、
工程の繁雑さを考慮すると、１０〜５０ｍｍとすること
が好ましい。When the metal tubular body is inserted into the thermoplastic resin tubular body, the thermoplastic resin tubular body is preheated and the inner diameter is expanded by thermal expansion, so that the outer diameter cannot be inserted at room temperature. The metal tubular body which has can be easily inserted. The length of the joint between the thermoplastic resin tubular body and the metal tubular body varies depending on the diameter of the joint, but the joint strength,
Considering the complexity of the process, it is preferably 10 to 50 mm.

【００１５】熱可塑性樹脂管状体中に金属管状体を挿入
後、冷却を行うことにより、熱可塑性樹脂管状体が加熱
後収縮により金属管状体を締め付ける。さらに、両管状
体間に介在した有機アルコキシシラン化合物縮合体と金
属管状体表面酸化被膜間の化学結合形成、水素結合形成
等、また、熱可塑性樹脂管状体と有機アルコキシシラン
化合物縮合体間の化学結合形成や親和力を利用すること
により接合強度と気密性を兼ね備えた接合を行うことが
可能となる。この際の冷却方法としは、放冷により徐々
に冷却を行うことが好ましい。After the metal tubular body is inserted into the thermoplastic resin tubular body and then cooled, the thermoplastic resin tubular body is heated and then contracted to shrink the metal tubular body. Furthermore, chemical bond formation, hydrogen bond formation, etc. between the organic alkoxysilane compound condensate intervening between the two tubular bodies and the metal tubular body surface oxide film, and the chemical bond between the thermoplastic resin tubular body and the organic alkoxysilane compound condensate. By utilizing bond formation and affinity, it becomes possible to perform bonding having both bonding strength and airtightness. As a cooling method at this time, it is preferable to gradually cool by allowing to cool.

【００１６】[0016]

【実施例】以下に本発明の実施例を示すが、本発明はそ
の要旨を越えない限りにおいて以下の実施例に限定され
るものではない。EXAMPLES Examples of the present invention will be shown below, but the present invention is not limited to the following examples as long as the gist thereof is not exceeded.

【００１７】[0017]

【実施例１】 （ポリアミド６６系樹脂（非強化）パイプとアルミニウ
ムパイプの接合）押出成形により作成した、周方向に若
干延伸させた非強化ポリアミド６６系樹脂パイプ（樹脂
商品名 旭化成ライネックスＬＲＳ３０Ａ 外径２０．
０ｍｍ、内径１６．０ｍｍ、肉厚２．０ｍｍ）を２３０
℃オーブン中にて５分間加熱を行った。Example 1 (Joining of Polyamide 66-based Resin (Unreinforced) Pipe and Aluminum Pipe) Extruded and slightly stretched non-reinforced polyamide 66-based resin pipe (resin product name: Asahi Kasei Linex LRS30A) Diameter 20.
0 mm, inner diameter 16.0 mm, wall thickness 2.0 mm) 230
Heated for 5 minutes in an oven.

【００１８】接合を行うアルミニウムパイプ（外径１
６．０ｍｍ、内径１３．２ｍｍ、肉厚１．４ｍｍ）の接
合部３０ｍｍ（長さ）表面にγ−アミノプロピルトリメ
トキシシランを塗布し、上記のように加熱を行った樹脂
パイプ中に３０ｍｍ挿入後、室温中にて放冷を行った。Aluminum pipe for joining (outer diameter 1
Γ-aminopropyltrimethoxysilane was applied to the surface of a joint portion 30 mm (length) of 6.0 mm, inner diameter 13.2 mm, wall thickness 1.4 mm, and inserted into the resin pipe heated as described above for 30 mm. Then, it was left to cool at room temperature.

【００１９】[0019]

【実施例２】 （ポリアミド６６系樹脂（非強化）パイプとアルミニウ
ムパイプの接合）実施例１で用いた非強化ポリアミド６
６系樹脂パイプを２３０℃オーブン中にて５分間加熱を
行った。接合を行うアルミニウムパイプ（外径１６．０
ｍｍ、内径１３．２ｍｍ、肉厚１．４ｍｍ）の接合部３
０ｍｍ（長さ）表面にγ−アミノプロピルトリメトキシ
シランを塗布し、アルミニウムパイプを４００℃オーブ
ン中において５分間加熱行った。Example 2 (Joining of Polyamide 66-based Resin (Unreinforced) Pipe and Aluminum Pipe) Unreinforced Polyamide 6 used in Example 1
The 6 series resin pipe was heated in a 230 ° C. oven for 5 minutes. Aluminum pipe for joining (outer diameter 16.0
mm, inner diameter 13.2 mm, wall thickness 1.4 mm)
Γ-Aminopropyltrimethoxysilane was applied on the surface of 0 mm (length), and the aluminum pipe was heated in an oven at 400 ° C. for 5 minutes.

【００２０】両パイプをそれぞれオーブンから取り出
し、樹脂パイプ中にアルミニウムパイプを３０ｍｍ挿入
後、室温中にて放冷を行った。Both pipes were taken out from the oven, an aluminum pipe was inserted into the resin pipe by 30 mm, and the resin pipe was allowed to cool at room temperature.

【００２１】[0021]

【実施例３】 （ポリアミド６６系樹脂（非強化）パイプと銅パイプの
接合）実施例１で用いた非強化ポリアミド６６系樹脂パ
イプを２３０℃オーブン中にて５分間加熱を行った。接
合を行う銅パイプ（外径１６．０ｍｍ、内径１３．２ｍ
ｍ、肉厚１．４ｍｍ）の接合部３０ｍｍ（長さ）表面に
γ−アミノプロピルトリメトキシシランを塗布し、上記
のように加熱を行った樹脂パイプ中に３０ｍｍ挿入後、
室温中にて放冷を行った。Example 3 (Joining Polyamide 66-based Resin (Unreinforced) Pipe to Copper Pipe) The non-reinforced polyamide 66-based resin pipe used in Example 1 was heated in an oven at 230 ° C. for 5 minutes. Copper pipe for joining (outer diameter 16.0 mm, inner diameter 13.2 m
m, wall thickness 1.4 mm) 30 mm (length) surface of the joint part is coated with γ-aminopropyltrimethoxysilane, and after being inserted 30 mm into the resin pipe heated as described above,
It was allowed to cool at room temperature.

【００２２】[0022]

【実施例４】 （ポリアミド６６系樹脂（ＧＦ強化）パイプとアルミニ
ウムパイプの接合）押出成形により作成した、周方向に
若干延伸させたＧＦ（グラス・ファイバー）強化ポリア
ミド６６系樹脂パイプ（樹脂商品名 旭化成ライネック
スＬＲＳ３０Ａ／ＧＦ 外径２０．０ｍｍ、内径１６．
０ｍｍ、肉厚２．０ｍｍ）を２３０℃オープン中にて５
分間加熱を行った。Example 4 (Joining a Polyamide 66 Resin (GF Reinforced) Pipe with an Aluminum Pipe) Extruded Molded GF (Glass Fiber) Reinforced Polyamide 66 Resin Pipe (Resin Product Name) Asahi Kasei Linex LRS30A / GF outer diameter 20.0mm, inner diameter 16.
0mm, wall thickness 2.0mm) 5 at 230 ℃ open
Heated for minutes.

【００２３】接合を行うアルミニウムパイプ（外径１
６．０ｍｍ、内径１３．２ｍｍ、肉厚１．４ｍｍ）の接
合部３０ｍｍ（長さ）表面にγ−アミノプロピルトリメ
トキシシランを塗布し、アルミニウムパイプを４２０℃
オーブン中において５分間加熱を行った。両パイプをそ
れぞれオーブンから取り出し、樹脂パイプ中にアルミニ
ウムパイプを３０ｍｍ挿入後、室温中にて放冷を行っ
た。Aluminum pipe for joining (outer diameter 1
Γ-Aminopropyltrimethoxysilane was applied to the surface of a joint portion 30 mm (length) having a length of 6.0 mm, an inner diameter of 13.2 mm and a wall thickness of 1.4 mm.
Heated for 5 minutes in the oven. Both pipes were taken out of the oven, an aluminum pipe was inserted into the resin pipe by 30 mm, and the resin pipe was allowed to cool at room temperature.

【００２４】[0024]

【実施例５】 （ポリエチレンパイプとアルミニウムパイプの接合）ブ
ロー成形により作成した、ポリエチレンパイプ（樹脂商
品名 旭化成サンテックスＢ−６８０）（外径２０．０
ｍｍ、内径１７．０ｍｍ、肉厚１．５ｍｍ）を１００℃
オーブン中にて５分間加熱を行った。Example 5 (Joining of polyethylene pipe and aluminum pipe) Polyethylene pipe (resin brand name Asahi Kasei Suntex B-680) prepared by blow molding (outer diameter 20.0)
mm, inner diameter 17.0 mm, wall thickness 1.5 mm) at 100 ° C
Heating was performed in the oven for 5 minutes.

【００２５】接合を行うアルミニウムパイプ（外径１
７．０ｍｍ、内径１４．０ｍｍ、肉厚１．５ｍｍ）の接
合部３０ｍｍ（長さ）表面にビニルトリエトキシシラン
を塗布し、上記のように加熱を行った樹脂パイプ中に３
０ｍｍ挿入後、室温中にて放冷を行った。Aluminum pipe for joining (outer diameter 1
7.0 mm, inner diameter 14.0 mm, wall thickness 1.5 mm) 30 mm (length) surface of the joint portion was coated with vinyltriethoxysilane, and heated in the above-described resin pipe to form 3
After inserting 0 mm, it was allowed to cool at room temperature.

【００２６】[0026]

【実施例６】 （ポリプロピレンパイプとアルミニウムパイプの接合）
ブロー成形により作成した、ポリプロピレンパイプ（樹
脂商品名 旭化成ポリプロＥ−７１００）（外径２０．
０ｍｍ、内径１７．０ｍｍ、肉厚１．５ｍｍ）を１２０
℃オーブン中にて５分間加熱を行った。Example 6 (Joining polypropylene pipe and aluminum pipe)
Polypropylene pipe (resin product name: Asahi Kasei Polypro E-7100) created by blow molding (outer diameter 20.
0 mm, inner diameter 17.0 mm, wall thickness 1.5 mm) 120
Heated for 5 minutes in an oven.

【００２７】接合を行うアルミニウムパイプ（外径１
７．０ｍｍ、内径１４．０ｍｍ、肉厚１．５ｍｍ）の接
合部３０ｍｍ（長さ）表面にビニルトリエトキシシラン
を塗布し、アルミニウムパイプを２８０℃オーブン中に
おいて５分間加熱を行った。両パイプをそれぞれオーブ
ンから取り出し、樹脂パイプ中にアルミニウムパイプを
３０ｍｍ（長さ）挿入後、室温中にて放冷を行った。Aluminum pipe for joining (outer diameter 1
Vinyltriethoxysilane was applied to the surface of a joint portion 30 mm (length) having a length of 7.0 mm, an inner diameter of 14.0 mm, and a wall thickness of 1.5 mm, and the aluminum pipe was heated in an oven at 280 ° C. for 5 minutes. Both pipes were taken out from the oven, an aluminum pipe was inserted into the resin pipe by 30 mm (length), and then allowed to cool at room temperature.

【００２８】[0028]

【実施例７】 （ポリフェニレンサルファイド系樹脂（ＧＦ強化）パイ
プとアルミニウムパイプの接合）押出成形により作成し
た、周方向に若干延伸させたＧＦ強化ポリフェニレンサ
ルファイド系樹脂パイプ（外径２０．０ｍｍ、内径１
６．０ｍｍ、肉厚２．０ｍｍ）を２５０℃オーブン中に
て５分間加熱を行った。Example 7 (Joining of Polyphenylene Sulfide Resin (GF Reinforced) Pipe and Aluminum Pipe) Extruded Molded GF Reinforced Polyphenylene Sulfide Resin Pipe (Outer Diameter 20.0 mm, Inner Diameter 1)
(6.0 mm, wall thickness 2.0 mm) was heated in a 250 ° C. oven for 5 minutes.

【００２９】接合を行うアルミニウムパイプ（外径１
６．０ｍｍ、内径１３．２ｍｍ、肉厚１．４ｍｍ）の接
合部３０ｍｍ（長さ）表面にγ−アミノプロピルトリメ
トキシシランを塗布し、アルミニウムパイプを４３０℃
オーブン中において５分間加熱を行った。両パイプをそ
れぞれオーブンから取り出し、樹脂パイプ中にアルミニ
ウムパイプを３０ｍｍ挿入後、室温中にて放冷を行っ
た。Aluminum pipe for joining (outer diameter 1
Γ-Aminopropyltrimethoxysilane is applied to the surface of a joint portion 30 mm (length) of 6.0 mm, inner diameter 13.2 mm, wall thickness 1.4 mm, and an aluminum pipe is set to 430 ° C.
Heated for 5 minutes in the oven. Both pipes were taken out of the oven, an aluminum pipe was inserted into the resin pipe by 30 mm, and the resin pipe was allowed to cool at room temperature.

【００３０】[0030]

【比較例１】上記実施例１において接合を行うアルミニ
ウムパイプ接合部表面にγ−アミノプロピルトリメトキ
シシランを塗布せずに同様に接合を行った。Comparative Example 1 Bonding was performed in the same manner as in Example 1 above, except that the surface of the aluminum pipe joint to be bonded was not coated with γ-aminopropyltrimethoxysilane.

【００３１】[0031]

【比較例２】上記実施例２において接合を行うアルミニ
ウムパイプ接合部表面にγ−アミノプロピルトリメトキ
シシランを塗布せずに同様に接合を行った。上記実施例
１〜７、比較例１〜２における接合パイプの接合性評価
は、接合強度と気密性について行い、接合強度は、接合
パイプの引き抜き強度により、また気密性は、接合パイ
プの片側を栓で止め反対側から圧力４．０ｋｇ／ｃｍ2
のエアーを吹き込み、接合パイプ全体を水中（２０℃）
あるいは、熱水中（７０℃）に沈めて接合部からのエア
ー漏れの有無により評価を行った。Comparative Example 2 Bonding was performed in the same manner as in Example 2 except that the surface of the aluminum pipe joint to be bonded was not coated with γ-aminopropyltrimethoxysilane. The joining properties of the joined pipes in the above Examples 1 to 7 and Comparative Examples 1 and 2 were evaluated with respect to the joining strength and the airtightness. Stop with a stopper and pressure from the other side 4.0 kg / cm 2
Air is blown into the entire joint pipe in water (20 ° C)
Alternatively, it was immersed in hot water (70 ° C.) and evaluated by the presence or absence of air leakage from the joint.

【００３２】接合パイプの評価結果を表１に示す。本発
明を用いることにより、作業の繁雑性がなく、接合強度
と気密性を兼ね備えた熱可塑性樹脂パイプと金属パイプ
の接合体を得ることが可能であることがわかる。Table 1 shows the evaluation results of the joined pipes. By using the present invention, it can be seen that it is possible to obtain a joined body of a thermoplastic resin pipe and a metal pipe that has both the joining strength and the airtightness without the work complexity.

【００３３】[0033]

【表１】 [Table 1]

【００３４】[0034]

【発明の効果】本発明により、熱可塑性樹脂管状体と金
属管状体との接合において、接合工程の繁雑さ、接着剤
中の溶剤による作業環境の悪化、樹脂管状体接合部にお
けるストレスクラックの発生等がなく、接合強度と気密
性を兼ね備えた熱可塑性樹脂管状体と金属管状体から成
る複合体を提供することが可能となる。According to the present invention, in joining a thermoplastic resin tubular body and a metal tubular body, the complexity of the joining process, the deterioration of the working environment due to the solvent in the adhesive, and the occurrence of stress cracks at the joint portion of the resin tubular body Therefore, it is possible to provide a composite body composed of a thermoplastic resin tubular body and a metal tubular body having both bonding strength and airtightness.

【００３５】また、本発明を利用することにより、自動
車アンダーフード部品や冷暖房機器部品等における金属
部品の樹脂化を容易に行うことが可能となり、自動車、
家電製品等の軽量化をより進めることができる。Further, by utilizing the present invention, it becomes possible to easily resinify the metal parts in the underhood parts for automobiles, parts for cooling and heating equipment, etc.
It is possible to further reduce the weight of home appliances and the like.

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

【図１】本発明における熱可塑性樹脂管状体の内径に金
属管状体の外径を挿入し接合した接合部断面図である。FIG. 1 is a sectional view of a joining portion in which an outer diameter of a metal tubular body is inserted into and joined to an inner diameter of a thermoplastic resin tubular body in the present invention.

【符号の説明】[Explanation of symbols]

１ 熱可塑性樹脂管状体 ２ 金属管状体 ３ 有機アミノシラン化合物縮合体 1 Thermoplastic Resin Tubular Body 2 Metal Tubular Body 3 Organic Aminosilane Compound Condensate

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 熱可塑性樹脂管状体と金属管状体が焼
嵌めしてなる接合部に有機アルコキシシラン化合物縮合
体が介在していることを特徴とする熱可塑性樹脂管状体
と金属管状体から成る複合体。1. A thermoplastic resin tubular body and a metal tubular body, wherein an organic alkoxysilane compound condensate is present in a joint formed by shrink-fitting the thermoplastic resin tubular body and the metal tubular body. Complex.
JP4050518A 1992-03-09 1992-03-09 Composite body comprising thermoplastic rein tubular body and metallic tubular body Withdrawn JPH05245936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4050518A JPH05245936A (en) 1992-03-09 1992-03-09 Composite body comprising thermoplastic rein tubular body and metallic tubular body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4050518A JPH05245936A (en) 1992-03-09 1992-03-09 Composite body comprising thermoplastic rein tubular body and metallic tubular body

Publications (1)

Publication Number Publication Date
JPH05245936A true JPH05245936A (en) 1993-09-24

Family

ID=12861197

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4050518A Withdrawn JPH05245936A (en) 1992-03-09 1992-03-09 Composite body comprising thermoplastic rein tubular body and metallic tubular body

Country Status (1)

Country Link
JP (1) JPH05245936A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013116672A (en) * 2011-12-02 2013-06-13 Shiroki Corp Method of processing molding
EP2974848A1 (en) * 2014-07-14 2016-01-20 WISCO Tailored Blanks GmbH Method for making a hybrid part made of at least one metal component and of at least one polymer component and hybrid part
CN111716745A (en) * 2020-06-17 2020-09-29 浙江久立特材科技股份有限公司 Method for preparing bimetal glued composite pipe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013116672A (en) * 2011-12-02 2013-06-13 Shiroki Corp Method of processing molding
EP2974848A1 (en) * 2014-07-14 2016-01-20 WISCO Tailored Blanks GmbH Method for making a hybrid part made of at least one metal component and of at least one polymer component and hybrid part
CN111716745A (en) * 2020-06-17 2020-09-29 浙江久立特材科技股份有限公司 Method for preparing bimetal glued composite pipe

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