JPS598064Y2 - Piping assembly for refrigeration equipment, etc. - Google Patents
Piping assembly for refrigeration equipment, etc.Info
- Publication number
- JPS598064Y2 JPS598064Y2 JP3674179U JP3674179U JPS598064Y2 JP S598064 Y2 JPS598064 Y2 JP S598064Y2 JP 3674179 U JP3674179 U JP 3674179U JP 3674179 U JP3674179 U JP 3674179U JP S598064 Y2 JPS598064 Y2 JP S598064Y2
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- pipe
- refrigeration equipment
- circumferential surface
- piping assembly
- 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.)
- Expired
Links
Landscapes
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Description
【考案の詳細な説明】
本考案は、冷蔵庫の冷却システム等の配管接合における
接着接合に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to adhesive bonding for pipe connections in refrigerator cooling systems and the like.
従来、冷蔵庫等の冷却システムの配管接合にてアルミニ
ウムパイプ同志、もしくはアルミニウムパイプと銅パイ
プとの接合は、例えば特開昭４９−３３５号公報に示さ
れるように単一の接着剤、例えば、エポキシ系等の一液
性熱硬化型構造用接着剤を適用した接着接合法が用いら
れる場合がある。Conventionally, aluminum pipes or aluminum pipes and copper pipes have been joined together using a single adhesive such as epoxy as shown in Japanese Patent Application Laid-Open No. 49-335. In some cases, an adhesive bonding method using a one-component thermosetting structural adhesive, such as a thermosetting adhesive, is used.
しかし、エポキシ系接着剤は、剛性が強いため、引張り
強度は大きいが、圧縮強度、曲げ強度等の諸物性値が低
いために、接着接合部に圧縮、曲げ、振動等の応力が加
わった場合、接合部の接着剤層にクラツクが生じ、その
結果、接合部のシール性が不良となり冷却システムを流
れる冷媒が、外部に漏れ冷却不良となることがあった。However, epoxy adhesives have high tensile strength due to their high rigidity, but their physical properties such as compressive strength and bending strength are low, so if stress such as compression, bending, vibration, etc. is applied to the adhesive joint, In some cases, cracks occur in the adhesive layer at the joint, resulting in poor sealing at the joint, and the refrigerant flowing through the cooling system leaks to the outside, resulting in poor cooling.
本考案は、斯かる問題点を改良し、接着部の外力に対し
ての柔軟性を向上させ剛性の高い接着剤に生ずるクラツ
クを防止することを目的としている。The purpose of the present invention is to improve such problems, improve the flexibility of the bonded portion against external forces, and prevent cracks that occur in highly rigid adhesives.
以下、本考案を、図示する一実施例により、説明する。Hereinafter, the present invention will be explained with reference to an illustrated embodiment.
１はアルミニウムのパイプ、２はアルミニウムまたは銅
のパイプであり、３は一方のパイプ１の内周面１ａと他
方のパイプ２の外周面２ａに予しめ塗布硬化させたニト
リル変形エポキシ、ニトリル変性フェノール等の柔軟性
接着剤である。1 is an aluminum pipe, 2 is an aluminum or copper pipe, and 3 is nitrile-modified epoxy or nitrile-modified phenol that has been applied and cured on the inner peripheral surface 1a of one pipe 1 and the outer peripheral surface 2a of the other pipe 2. It is a flexible adhesive such as.
４は柔軟性接着剤３同志を接着するエポキシ系、アクリ
ル系等の剛性接着剤である。Reference numeral 4 denotes a rigid adhesive such as epoxy or acrylic adhesive for bonding the flexible adhesive 3 together.
次にかかる構或の具体的接着手順をのべると、アルミニ
ウムのパイプ１の拡管部内周面１ａと、アルミニウムの
パイプもしくは、銅のパイプ２の先端外周面２ａにニト
リル変性エポキシ、ニトリル変性フェノール等の柔軟性
接着剤３を塗布し硬化させる。Next, the specific bonding procedure for such a structure is described. Nitrile-modified epoxy, nitrile-modified phenol, etc. Apply the flexible adhesive 3 and harden it.
次に前記パイプ２の先端外周面２ａに硬化させた前記接
着剤３の外周面に、エポキシ系、アクリル系等の剛性接
着剤４を塗布し、前記パイプ１の拡管部１ａに挿入し、
カシメ５を行い、接合部を仮固定した後、前記接着剤４
を硬化させるものである。Next, a rigid adhesive 4 such as epoxy or acrylic is applied to the outer circumferential surface of the adhesive 3 that has been cured on the outer circumferential surface 2a of the tip end of the pipe 2, and the adhesive is inserted into the expanded tube portion 1a of the pipe 1.
After caulking 5 and temporarily fixing the joint, the adhesive 4
It hardens.
なお、前記カシメ５はパイプ１，２両者の位置決めが治
具にて図れる場合は特に必要ない。Note that the caulking 5 is not particularly necessary if both the pipes 1 and 2 can be positioned using a jig.
従って、前記パイプ１と２の接着接合部は、前記パイプ
１の拡管部内周面と、前記パイプ２の先端部外周面に前
記柔軟性接着剤３を塗布し硬化させることにより、前記
パイプ１及び２に加わる振動、及び前記パイプ１と２の
接合部に加わる曲げ、圧縮等の外的応力を柔軟性接着剤
３が吸収し、また前記柔軟性接着剤３の中間層となるよ
うに塗布し硬化された剛性接着剤４は、前記パイプ１，
２の接合部の引張り強度を向上させるものである。Therefore, the adhesive joint between the pipes 1 and 2 is formed by applying the flexible adhesive 3 to the inner circumferential surface of the expanded tube portion of the pipe 1 and the outer circumferential surface of the tip end of the pipe 2 and curing it. The flexible adhesive 3 absorbs vibrations applied to the pipes 2 and external stresses such as bending and compression applied to the joint between the pipes 1 and 2, and is applied as an intermediate layer of the flexible adhesive 3. The cured rigid adhesive 4 is applied to the pipe 1,
This improves the tensile strength of the joint of No. 2.
また図示した実施例とは逆に、パイプ１の内周面１ａと
パイプ２の外周面２ａに剛性接着剤４を塗布、硬化した
のち、中間層として柔軟性接着剤３を用いてもよい。Further, contrary to the illustrated embodiment, after the rigid adhesive 4 is applied to the inner circumferential surface 1a of the pipe 1 and the outer circumferential surface 2a of the pipe 2 and cured, the flexible adhesive 3 may be used as an intermediate layer.
本考案は上記したように、パイプの接着に関して、柔軟
性接着剤と剛性接着剤を少なくとも２重層以上になるよ
うに用いて接着したものであり、従来剛性接着剤のみに
おける曲げ、衝撃、圧縮等の外力によるクラツクの発生
を柔軟性接着により吸収し、接合部の耐リーク性を向上
させる効果を有するものである。As mentioned above, the present invention uses at least two layers of a flexible adhesive and a rigid adhesive to bond pipes, and is capable of handling bending, impact, compression, etc. that were previously only possible with a rigid adhesive. This has the effect of absorbing cracks caused by external forces by the flexible adhesive and improving the leak resistance of the joint.
図面は本考案の一実施例を示す配管接合体の断面図であ
る。
１，２・・・・・・パイプ、３・・・・・・柔軟性接着
剤、４・・・・・・剛性接着剤。The drawing is a sectional view of a pipe assembly showing an embodiment of the present invention. 1, 2... Pipe, 3... Flexible adhesive, 4... Rigid adhesive.
Claims (1)
周面との間に、柔軟性接着剤と、剛性接着剤とを少なく
とも２重層以上に塗布し硬化した冷凍装置等の配管接合
体。A piping assembly for refrigeration equipment, etc., in which at least two layers of flexible adhesive and rigid adhesive are applied and hardened between the outer circumferential surface of the insertion port of one pipe and the inner circumferential surface of the socket of the other pipe. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3674179U JPS598064Y2 (en) | 1979-03-20 | 1979-03-20 | Piping assembly for refrigeration equipment, etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3674179U JPS598064Y2 (en) | 1979-03-20 | 1979-03-20 | Piping assembly for refrigeration equipment, etc. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55135878U JPS55135878U (en) | 1980-09-27 |
| JPS598064Y2 true JPS598064Y2 (en) | 1984-03-12 |
Family
ID=28898481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3674179U Expired JPS598064Y2 (en) | 1979-03-20 | 1979-03-20 | Piping assembly for refrigeration equipment, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS598064Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7120829B2 (en) * | 2017-11-17 | 2022-08-17 | 積水化学工業株式会社 | How to connect multi-layer pipes |
-
1979
- 1979-03-20 JP JP3674179U patent/JPS598064Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55135878U (en) | 1980-09-27 |
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