JPS60143287A - Method of connecting pipe - Google Patents
Method of connecting pipeInfo
- Publication number
- JPS60143287A JPS60143287A JP25132183A JP25132183A JPS60143287A JP S60143287 A JPS60143287 A JP S60143287A JP 25132183 A JP25132183 A JP 25132183A JP 25132183 A JP25132183 A JP 25132183A JP S60143287 A JPS60143287 A JP S60143287A
- Authority
- JP
- Japan
- Prior art keywords
- shape memory
- memory alloy
- pipe
- notch
- epoxy resin
- 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業−にの利用分野
本発ワｊは形状記憶合金管継手を使用した管の接空調機
器やＰ湯給水装置の配管において、α；′の接続方法と
して、従来のろう付やフレア方式に代るものとして形状
記憶合金管継手による方式か注目されている。[Detailed Description of the Invention] Industrial Field of Application The present invention is a method for connecting α;' in pipes for air-conditioning equipment and hot water supply equipment using shape memory alloy pipe joints. A method using shape memory alloy pipe joints is attracting attention as an alternative to brazing and flare methods.
この形状記憶合金管継手による方式は、第１図（ａ）
Ｋ示すように、形状記憶合金１１、ライナ１２、エポキ
シ樹脂１３からなる形状記憶合金管継手１の内部にその
両側より管２，３を挿入し、その後形状記憶合金継手１
をトーチ等で加熱すると第１図（ｂ）に示すように形状
記憶合金１か収縮し、その収縮力によりライナ１２を介
して管２，３か締めつけられ、その際、ライナ１２の内
側に塗布されたエポキシ樹脂１３か軟化後硬化し気密性
か得らるものである。This method using shape memory alloy pipe joints is shown in Figure 1(a).
As shown in K, the pipes 2 and 3 are inserted from both sides into the shape memory alloy pipe joint 1 made of a shape memory alloy 11, a liner 12, and an epoxy resin 13, and then the shape memory alloy joint 1 is inserted.
When heated with a torch or the like, the shape memory alloy 1 contracts as shown in FIG. The epoxy resin 13 is softened and then cured to provide airtightness.
しかしこの接続方法においては、接続時の加熱Ｃエポキ
シ樹脂１３は一度軟化するか、その１際、形状１肥億合
金１１の締何は力てエポキシ樹脂１３か外部へ流出し、
一部は管２，３の接続合せ部１４からもれで管内へ突出
し、そのｉｔ硬化するため、接続後には第１図（ｂ）に
示すように管内にエポキシ樹脂の突起１５か形成される
。このため、管内径か減少し、あるいは、空調機器にお
いて１は冷媒中へ突起１５か欠は落ち、これか圧縮機へ
移動し、圧縮機ピストン動作不良をおこすという問題点
かあった。However, in this connection method, the heated C epoxy resin 13 at the time of connection softens once, or at that time, the fasteners of the shape 1 fertilizing alloy 11 are forced and flow out of the epoxy resin 13.
A part of the pipes leaks from the joint 14 of the pipes 2 and 3 and protrudes into the pipe, and as it hardens, an epoxy resin protrusion 15 is formed inside the pipe after the connection, as shown in FIG. 1(b). . As a result, the inner diameter of the pipe decreases, or in air conditioners, the protrusion 15 falls into the refrigerant and is transferred to the compressor, causing the compressor piston to malfunction.
発明の目的
本発明はこのような問題を解決するもので、エポキシ樹
脂の管内面への突出しを軽減することを目的とするもの
である。OBJECTS OF THE INVENTION The present invention is intended to solve these problems, and aims to reduce the protrusion of the epoxy resin onto the inner surface of the tube.
発８ＩＪのイ：１１４成
この目的を達成するために、零発８１″Ｉは、接続する
管の形状記憶合金管継手へ挿入する端部外周に切欠き部
を設けだもので、この切欠き部を設けたことにより、管
の接続時の加熱で軟化したエポキシ樹脂は、切欠き部と
形状記憶合金管継手内面とて椙成される空、隙部に充填
されるので、接続管内面への突出が軽減されるものであ
る。8IJ A: 114 In order to achieve this purpose, 081''I is equipped with a notch on the outer periphery of the end of the connecting pipe that is inserted into the shape memory alloy pipe fitting. By providing this section, the epoxy resin softened by heating when connecting the pipes fills the voids and gaps created between the notch and the inner surface of the shape memory alloy pipe joint, so that it does not reach the inner surface of the connecting pipe. The protrusion is reduced.
実施例の説明
以下、本発明をその一実施例を示す第２図を参考例説明
する。DESCRIPTION OF EMBODIMENTS The present invention will be described below as a reference example with reference to FIG. 2, which shows one embodiment of the present invention.
すなわち、接続しようとする管２，３の対向端部の外周
に略４５°の角度で切欠き部１６を混成する。そして形
状記憶合金管継手１は収縮する。That is, the notch 16 is formed at an angle of about 45° on the outer periphery of the opposing ends of the pipes 2 and 3 to be connected. Then, the shape memory alloy pipe joint 1 contracts.
しかし、その際、従来と適って、本発明においては切欠
き部１６と形状記憶合金管継手１の内面には空隙１７が
形成されるため、軟化したエポキシ樹脂１３はこの空隙
１７に充填される。However, in this case, in accordance with the conventional method, a void 17 is formed between the notch 16 and the inner surface of the shape memory alloy pipe joint 1, so the softened epoxy resin 13 is filled into this void 17. .
なお、切欠き部１６の形成手段としては、外周り−マや
切削加工等で可能である。また、余剰エポキシ樹脂１ハ
に相当するだけの空隙を石′１１成すれｌ−１：良いの
であるから、切欠き部は、場合によっては接続管の一方
へ形成するのみで良い。Note that the notch portion 16 can be formed by an outer circumferential machining process, a cutting process, or the like. Furthermore, since it is sufficient to form a gap corresponding to one portion of the excess epoxy resin, the notch may only be formed on one side of the connecting pipe, depending on the case.
発明の効果
上記実施例から明らかなように、本発明の管の接続方法
によれば、接続する管の端部外周へ９Ｊ欠き部を形成す
るのみて、形状記憶合金管継手の内面のエポキシ樹脂の
管内への突出を軽減できるので、作業上、従来とはＸ゛
同等の技術で管接続作業か可能であり、また、エポキシ
樹脂の冷媒中への欠は落ちと、それに伴なう圧縮機のＵ
ノ作不良発生を防止できるものである。Effects of the Invention As is clear from the above embodiments, according to the pipe connecting method of the present invention, the epoxy resin on the inner surface of the shape memory alloy pipe joint can be removed by forming a 9J notch on the outer periphery of the end of the pipe to be connected. Since the protrusion of the epoxy resin into the pipe can be reduced, it is possible to connect the pipes using the same technology as in the past. U of
This can prevent the occurrence of crop defects.
第１図（ａ） 、 （ｂ）は従来の管の接続方法を示す
管接続部の断面図、第２図（ａ） 、 （ｂ）は本発明
の管の接続方法の実施例を示す管接続部の断面図である
。
１・・・・・・形状記憶合金管継手、１３・・・・・・
エポキシ樹脂、２，３・・・・・管、１５・・・・・・
突出部、１６・田切欠き部。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名菓
１ 図
男 ２ 図FIGS. 1(a) and (b) are cross-sectional views of a pipe connection part showing a conventional pipe connection method, and FIGS. 2(a) and (b) are pipes showing an embodiment of the pipe connection method of the present invention. It is a sectional view of a connection part. 1... Shape memory alloy pipe joint, 13...
Epoxy resin, 2,3...tube, 15...
Projection, 16. Notch. Name of agent: Patent attorney Toshio Nakao and one other name
1 figure man 2 figure
Claims (1)
形成し、この切欠き部が接続対向端部となるよう形状記
憶合金管継手へ挿入し、この形状記憶合金管継手を加熱
収縮させて管を接続する管の接続方法。A notch is formed on the outer periphery of at least one end of the pipes to be connected, the notch is inserted into the shape memory alloy pipe fitting so that the notch becomes the opposite end for connection, and the shape memory alloy pipe joint is heated. A method of connecting tubes by shrinking them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25132183A JPS60143287A (en) | 1983-12-29 | 1983-12-29 | Method of connecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25132183A JPS60143287A (en) | 1983-12-29 | 1983-12-29 | Method of connecting pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60143287A true JPS60143287A (en) | 1985-07-29 |
Family
ID=17221074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25132183A Pending JPS60143287A (en) | 1983-12-29 | 1983-12-29 | Method of connecting pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60143287A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63225784A (en) * | 1987-02-19 | 1988-09-20 | アドバンスト・メタル・コンポーネンツ、インコーポレイテッド | Connecting device |
| JPH0348091A (en) * | 1989-07-15 | 1991-03-01 | Shimizu Seisakusho:Kk | Pipe coupling |
| JPH0384294A (en) * | 1989-08-24 | 1991-04-09 | Shimizu Seisakusho:Kk | Pipe coupling |
-
1983
- 1983-12-29 JP JP25132183A patent/JPS60143287A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63225784A (en) * | 1987-02-19 | 1988-09-20 | アドバンスト・メタル・コンポーネンツ、インコーポレイテッド | Connecting device |
| JPH0348091A (en) * | 1989-07-15 | 1991-03-01 | Shimizu Seisakusho:Kk | Pipe coupling |
| JPH0384294A (en) * | 1989-08-24 | 1991-04-09 | Shimizu Seisakusho:Kk | Pipe coupling |
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