JPH05215278A - Pipe joining method - Google Patents
Pipe joining methodInfo
- Publication number
- JPH05215278A JPH05215278A JP4017897A JP1789792A JPH05215278A JP H05215278 A JPH05215278 A JP H05215278A JP 4017897 A JP4017897 A JP 4017897A JP 1789792 A JP1789792 A JP 1789792A JP H05215278 A JPH05215278 A JP H05215278A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- adhesive
- joining
- tapered
- base material
- 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
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、接合作業性に優れかつ
接合強度の高いパイプの接合方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for joining pipes having excellent joining workability and high joining strength.
【０００２】[0002]
【従来の技術】従来、パイプを接合するには、一方のパ
イプの先端部の外周面を先細り状に傾斜させてテーパ面
（傾斜面）とすると共に、他方のパイプの先端部の内周
面をパイプ内部に行くにつれてパイプ内径が縮小するよ
うに傾斜させてテーパ面とし、これら両パイプのテーパ
面同士を接着剤層を介して接合することによっていた。
そして、この場合、接着剤層としては液状の接着剤を用
いていた。2. Description of the Related Art Conventionally, for joining pipes, the outer peripheral surface of the tip portion of one pipe is tapered to form a tapered surface (inclined surface), and the inner peripheral surface of the tip portion of the other pipe is joined. Was inclined so as to reduce the inner diameter of the pipe toward the inside of the pipe to form a tapered surface, and the tapered surfaces of these two pipes were joined together via an adhesive layer.
In this case, a liquid adhesive is used as the adhesive layer.
【０００３】しかしながら、液状の接着剤では、余分に
用いるとその除去が面倒であり、また、高温下では流動
性が増して流れ易くなるなどのため接合作業性に劣り、
さらに塗りむらが生じ易いので接合後の接着強度、すな
わち接合強度がわるいなどの問題があった。However, if the liquid adhesive is used excessively, it is troublesome to remove it, and at high temperature, the fluidity is increased and it becomes easy to flow.
Furthermore, since uneven coating is likely to occur, there is a problem that the adhesive strength after joining, that is, the joining strength is poor.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、このような
液状の接着剤を用いる場合の問題点を解消するためにな
されたものであって、接合作業性に優れかつ接合強度の
高いパイプの接合方法を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems in the case of using such a liquid adhesive, and provides a pipe having excellent joining workability and high joining strength. The purpose is to provide a joining method.
【０００５】[0005]
【課題を解決するための手段】本発明は、一方のパイプ
の先端部の外周面を先細り状に傾斜させると共に他方の
パイプの先端部の内周面をパイプ内部に行くにつれてパ
イプ内径が縮小するように傾斜させ、これら両パイプの
傾斜面同士を接着剤層を介して接合するパイプの接合方
法において、前記接着剤層として基材入りフィルム状接
着剤を用いることを特徴とする。According to the present invention, the inner diameter of the pipe is reduced as the outer peripheral surface of the tip portion of one pipe is inclined and the inner peripheral surface of the tip portion of the other pipe goes inside the pipe. In the pipe joining method in which the inclined surfaces of both pipes are joined together via the adhesive layer as described above, a film-shaped adhesive agent containing a substrate is used as the adhesive layer.
【０００６】このように本発明では、接着剤層として基
材入りフィルム状接着剤を用いるために、液状の接着剤
を用いる場合に比して、余分に用いるおそれがなく、ま
た、高温下で接着剤成分が流動しても基材が流れ止めの
役目を果たすので接着剤成分が流れることがないので接
合作業性に優れることになる。さらに、液状の接着剤を
用いる場合に比して、塗りむらが生じるようなことがな
いから接合強度を高めることができる。As described above, in the present invention, since the film-shaped adhesive containing the base material is used as the adhesive layer, there is no fear of excessive use as compared with the case where a liquid adhesive is used, and at a high temperature. Even if the adhesive component flows, the base material functions as a flow stop, so that the adhesive component does not flow, resulting in excellent bonding workability. Furthermore, as compared with the case where a liquid adhesive is used, uneven coating does not occur, so that the bonding strength can be increased.
【０００７】以下、本発明の構成につき詳しく説明す
る。本発明において接合するパイプは、鉄、銅、アルミ
ニウム等の金属パイプ、又はポリ塩化ビニル等の合成樹
脂パイプのいずれでもよい。金属パイプ同士、合成樹脂
パイプ同士のような同種パイプ同士の接合であってもよ
く、金属パイプと合成樹脂パイプとの接合のような異種
パイプ同士の接合であってもよい。The structure of the present invention will be described in detail below. The pipe to be joined in the present invention may be a metal pipe such as iron, copper or aluminum, or a synthetic resin pipe such as polyvinyl chloride. The same type of pipes such as metal pipes and synthetic resin pipes may be joined, or different types of pipes such as a metal pipe and a synthetic resin pipe may be joined.
【０００８】また、本発明において用いる基材入りフィ
ルム状接着剤は、基材に熱硬化性樹脂を含浸させてなる
ものである。基材としては、例えば、ガラス繊維、芳香
族ポリアミド繊維、炭素繊維、ポリエステル繊維等の不
織布、ナイロン繊維のネットなどを用いればよい。熱硬
化性樹脂は、例えば、エポキシ樹脂、エポキシ・ナイロ
ン樹脂、ニトリル・フェノリック樹脂、ニトリル・エポ
キシ樹脂などである。この基材入りフィルム状接着剤
は、厚さが0.1 mm〜0.5 mm程度のものであって、通常、
離型シートを間に挟んで渦巻状に巻かれて保存されてい
る。 図１に接合後のパイプの接合部分を示す。図１に
おいて、パイプ２の先端部２ａがパイプ１内に挿入さ
れ、先端部２ａと先端部１ａとでパイプ２とパイプ１と
が接合している。このように接合するには、本発明にお
いては、まず、図２に示すようにパイプ２の先端部２ａ
の外周面を常法により先細り状に傾斜させる。また、図
３に示すようにパイプ１の先端部１ａの内周面１ｂをパ
イプ内部に行くにつれてパイプ内径が縮小するように常
法により傾斜させる。ついで、図２に示すようにパイプ
２の先端部２ａの外周面に基材入りフィルム状接着剤３
を配置した後、パイプ２の先端部２ａをパイプ１の先端
部１ａ内に挿入して両パイプ１、２の傾斜面同士を基材
入りフィルム状接着剤３を介して接合することによる。The film-shaped adhesive containing a substrate used in the present invention is obtained by impregnating a substrate with a thermosetting resin. As the substrate, for example, a non-woven fabric such as glass fiber, aromatic polyamide fiber, carbon fiber, polyester fiber, or a net of nylon fiber may be used. The thermosetting resin is, for example, epoxy resin, epoxy / nylon resin, nitrile / phenolic resin, nitrile / epoxy resin, or the like. This film-containing adhesive with a substrate has a thickness of about 0.1 mm to 0.5 mm, and
It is stored in a spiral shape with a release sheet in between. FIG. 1 shows the joined portion of the pipe after joining. In FIG. 1, the tip 2a of the pipe 2 is inserted into the pipe 1, and the tip 2a and the tip 1a join the pipe 2 and the pipe 1. In order to join in this way, in the present invention, first, as shown in FIG.
The outer peripheral surface of the is inclined in a tapered shape by a conventional method. Further, as shown in FIG. 3, the inner peripheral surface 1b of the tip portion 1a of the pipe 1 is inclined by a conventional method so that the inner diameter of the pipe decreases as it goes inside the pipe. Then, as shown in FIG. 2, a film-shaped adhesive 3 containing a base material is attached to the outer peripheral surface of the tip 2a of the pipe 2.
After arranging, the tip portion 2a of the pipe 2 is inserted into the tip portion 1a of the pipe 1, and the inclined surfaces of the pipes 1 and 2 are joined to each other via the film-containing adhesive 3 containing a base material.
【０００９】[0009]
【実施例】内径36mmおよび外径40mmの鉄パイプ２の先端
部２ａの外周面を図２に示すように先細り状に傾斜させ
ると共に、内径38mmおよび外径42mmの鉄パイプ１の先端
部１ａの内周面１ｂを図２に示すようにパイプ内部に行
くにつれてパイプ内径が縮小するように傾斜させ（それ
ぞれの傾斜面のパイプ軸方向長さ12.7mm）、FM123-2
（ACC 社製のニトリル変性エポキシ樹脂フィルム状接着
剤、厚さ約0.2 mm) を介して両鉄パイプの傾斜面同士を
接合した（本発明例）。EXAMPLE As shown in FIG. 2, the outer peripheral surface of the tip portion 2a of the iron pipe 2 having an inner diameter of 36 mm and an outer diameter of 40 mm is tapered and the tip portion 1a of the iron pipe 1 having an inner diameter of 38 mm and an outer diameter of 42 mm is formed. As shown in FIG. 2, the inner peripheral surface 1b is inclined so that the inner diameter of the pipe is reduced toward the inside of the pipe (the length of each inclined surface in the axial direction of the pipe is 12.7 mm).
The inclined surfaces of the two iron pipes were joined together with each other (according to the present invention) with a nitrile modified epoxy resin film adhesive made by ACC, thickness of about 0.2 mm.
【００１０】また、基材入りフィルム状接着剤の代わり
に液状接着剤（住友スリーエム社製のDP-190）を用いる
ことを除いて、この本発明例におけると同様にして両鉄
パイプの傾斜面同士を接合した（従来例）。この場合の
塗布厚は約0.2 mmであった。さらに、比較のために、鉄
パイプ２の先端部２ａの外周面および鉄パイプ１の先端
部１ａの内周面を傾斜させることなく、かつ鉄パイプ２
の先端部２ａの外周面の外径を鉄パイプ１の内径38mmに
見合うように小径（38mm）とすることを除いて、上記本
発明例におけると同様にして基材入りフィルム状接着剤
を用いて両鉄パイプ同士を接合した（比較例）。Further, the inclined surface of both iron pipes is the same as in this example of the present invention except that a liquid adhesive (DP-190 manufactured by Sumitomo 3M Co., Ltd.) is used in place of the film-shaped adhesive containing the base material. They were joined together (conventional example). The coating thickness in this case was about 0.2 mm. Further, for comparison, the outer peripheral surface of the tip portion 2a of the iron pipe 2 and the inner peripheral surface of the tip portion 1a of the iron pipe 1 are not inclined and the iron pipe 2
Using a film-shaped adhesive agent containing a base material in the same manner as in the above-mentioned example of the present invention, except that the outer diameter of the outer peripheral surface of the tip end portion 2a is set to a small diameter (38 mm) so as to correspond to the inner diameter 38 mm of the iron pipe 1. Both iron pipes were joined together (comparative example).
【００１１】これらの接合パイプについて、下記の引張
圧縮試験を行い、この場合の破断回数で接合強度を評価
した。この結果を図４に示す。図４中、数値は荷重（k
g) である。引張圧縮試験 ：株式会社島津製作所製の二軸負荷試験機
(EHF-ED10/TD1-20L 型) を用い、室温にて10ヘルツの引
張圧縮荷重をかけることによった。The following tensile and compression tests were performed on these joined pipes, and the joining strength was evaluated by the number of breaks in this case. The result is shown in FIG. In Fig. 4, the numerical value is the load (k
g). Tensile compression test : Shimadzu's biaxial load tester
(EHF-ED10 / TD1-20L type) was used and a tensile compression load of 10 Hertz was applied at room temperature.
【００１２】図４から明らかなように、本発明による接
合パイプ（本発明例）が接合強度において優れているこ
とが判る。すなわち、例えば2200kgの荷重下において
は、本発明例では破断回数104 回程度まで破断されない
が、従来例では破断回数102 回を超えた当たりで破断さ
れ、比較例では破断回数103 回当たりで破断されてしま
う。As is clear from FIG. 4, the joint pipe according to the present invention (example of the present invention) is excellent in joint strength. That is, for example, under a load of 2200 kg, in the present invention example it is not ruptured until about 10 4 times of rupture, but in the conventional example it ruptures after exceeding 10 2 times of rupture, and in the comparative example 10 3 times of rupture. Will be broken by.
【００１３】[0013]
【発明の効果】以上説明したように本発明によれば、パ
イプを接合するに際して基材入りフィルム状接着剤を用
いるために、接合作業性および接合強度を高めることが
可能となる。As described above, according to the present invention, since the film-shaped adhesive agent containing the base material is used for joining pipes, it is possible to enhance the workability and the joining strength.
【図１】接合後のパイプの接合部分を示す斜視説明図で
ある。FIG. 1 is a perspective view showing a joined portion of pipes after joining.
【図２】一方のパイプの先端部の断面図である。FIG. 2 is a sectional view of a tip portion of one pipe.
【図３】他方のパイプの先端部の断面図である。FIG. 3 is a cross-sectional view of the tip of the other pipe.
【図４】接合パイプの破断回数と応力との関係図であ
る。FIG. 4 is a diagram showing the relationship between the number of breaks of a joined pipe and stress.
１ パイプ、 １ａ パイプの先端部、 ２ パイプ、
２ａ パイプの先端部、３ 基材入りフィルム状接着
剤。1 pipe, 1a pipe tip, 2 pipe,
2a Tip of pipe 3 Film adhesive containing base material.
Claims (1)
状に傾斜させると共に他方のパイプの先端部の内周面を
パイプ内部に行くにつれてパイプ内径が縮小するように
傾斜させ、これら両パイプの傾斜面同士を接着剤層を介
して接合するパイプの接合方法において、前記接着剤層
として基材入りフィルム状接着剤を用いてなるパイプの
接合方法。1. An outer peripheral surface of a tip portion of one pipe is tapered and an inner peripheral surface of a tip portion of the other pipe is inclined so that an inner diameter of the pipe is reduced toward the inside of the pipe. A method for joining pipes, wherein the inclined surfaces are joined together via an adhesive layer, wherein the film-like adhesive containing a substrate is used as the adhesive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4017897A JPH05215278A (en) | 1992-02-03 | 1992-02-03 | Pipe joining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4017897A JPH05215278A (en) | 1992-02-03 | 1992-02-03 | Pipe joining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05215278A true JPH05215278A (en) | 1993-08-24 |
Family
ID=11956527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4017897A Pending JPH05215278A (en) | 1992-02-03 | 1992-02-03 | Pipe joining method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05215278A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005147086A (en) * | 2003-11-19 | 2005-06-09 | Fuji Heavy Ind Ltd | Blade of horizontal axis wind mill |
| JP2011127672A (en) * | 2009-12-17 | 2011-06-30 | Kazumi Kobayashi | Connecting structure of pipe |
-
1992
- 1992-02-03 JP JP4017897A patent/JPH05215278A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005147086A (en) * | 2003-11-19 | 2005-06-09 | Fuji Heavy Ind Ltd | Blade of horizontal axis wind mill |
| JP2011127672A (en) * | 2009-12-17 | 2011-06-30 | Kazumi Kobayashi | Connecting structure of pipe |
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