JPS63105842A - Joint and connecting method - Google Patents
Joint and connecting methodInfo
- Publication number
- JPS63105842A JPS63105842A JP25223386A JP25223386A JPS63105842A JP S63105842 A JPS63105842 A JP S63105842A JP 25223386 A JP25223386 A JP 25223386A JP 25223386 A JP25223386 A JP 25223386A JP S63105842 A JPS63105842 A JP S63105842A
- Authority
- JP
- Japan
- Prior art keywords
- shape
- joint
- shape memory
- pipe
- plate 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
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 10
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims description 2
- 229910000734 martensite Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 2
- 239000005457 ice water Substances 0.000 abstract description 2
- KHYBPSFKEHXSLX-UHFFFAOYSA-N iminotitanium Chemical compound [Ti]=N KHYBPSFKEHXSLX-UHFFFAOYSA-N 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 229910001000 nickel titanium Inorganic materials 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910004337 Ti-Ni Inorganic materials 0.000 description 1
- 229910011209 Ti—Ni Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、パイプ、コネクター等口径の大きな部材と該
口径よりも若干小さい外径を有する部材とを接続する場
合に適用される継手およびこれを用いた接続方法に関す
るものである。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a joint that is applied to connect a member having a large diameter such as a pipe or a connector to a member having an outer diameter slightly smaller than the diameter thereof, and This relates to a connection method using.
従来、口径の大きな部材と該口径よりも若干小さい外径
を有する部材とを接続する方法としては、（１）焼ばめ
、
（２）ネジ込み、
（３）挿入接着剤で固める。Conventionally, methods for connecting a member with a large diameter and a member with an outer diameter slightly smaller than the diameter include (1) shrink fitting, (2) screwing, and (3) hardening with an insertion adhesive.
などの方法や、最近では、
（４）形状記憶合金の熱回復機能を応用した継手で、接
続すべき両部材を外径方向から締め付けて接続する方法
が知られている。Recently, methods such as (4) a method of connecting both members to be connected by tightening them from the outer radial direction using a joint that applies the heat recovery function of a shape memory alloy are known.
しかし、（１）の方法は接続する部材が木材等で金属で
なかったり、あるいは加熱が不可能な場合は適用されな
い、（２）の方法も、薄肉のパイプあるいは強度的に問
題でネジ加工が不可能な場合には適用できない。However, method (1) cannot be applied when the connecting parts are wood or other materials that are not metal, or when heating is not possible.Method (2) is also not applicable to thin-walled pipes or when threading is difficult due to strength issues. It cannot be applied if this is not possible.
また、（３）の接着剤による方法も熱的あるいは。In addition, the method (3) using an adhesive is also thermal.
強度的に問題があり、使用中に抜ける心配もある。There are problems with its strength, and there is a concern that it may come off during use.
（４）の形状記憶合金による継手は、従来、はぼ同一外
径のパイプ等を連結する場合に用いられる例が報告され
ている（特開昭６０−７５５６２号公報）、また、径が
異なる場合にも適用可能であるが、被接続部材の外周方
向から継手が締め付けているので継手が外側に露出する
ため、外観上あるいは機能上不具合の場合が多い。(4) Shape memory alloy joints have been reported to be used to connect pipes with approximately the same outer diameter (Japanese Unexamined Patent Publication No. 60-75562), and also to connect pipes with different diameters. However, since the joint is tightened from the outer circumferential direction of the connected member, the joint is exposed to the outside, which often causes defects in appearance or function.
本発明は、このような問題の解決のためになされるもの
である。The present invention has been made to solve such problems.
本発明は、Ｔｉ−Ｎｉ系合金あるいはＣｕ−Ｚｎ−Ａ１
等の形状記憶合金を用い、加熱により回復した状態で蛇
腹あるいはコルゲート等の波形になるように形状記憶処
理された継手である。The present invention uses Ti-Ni alloy or Cu-Zn-A1
These joints are shaped memory-treated joints using shape memory alloys such as, etc., so that they become corrugated or corrugated when heated.
本発明は一般的には、板状の素材を波形に加工し、所定
の温度で形状回復するような形状記憶処理を施し、Ｍｆ
以下の低温において平滑なパイプに変形させたのち、接
合しようとする部分の隙間に挿入し、Ａｆ点以上の温度
に加熱することにより、波形に回復しようとする力で接
合面を圧迫し接合するものである。The present invention generally involves machining a plate-like material into a wave shape, applying shape memory treatment to recover the shape at a predetermined temperature, and
After deforming into a smooth pipe at the following low temperature, it is inserted into the gap between the parts to be joined and heated to a temperature above the Af point, which compresses and joins the joining surface with the force that tries to restore the wave shape. It is something.
本発明継手の形態としては、接合部位全周域をカバーす
るパイプ状のもの、または接合部位の一または二ケ所以
上に挿入して使用される板状のものが掲げられる。パイ
プ継手の場合は、一枚の板を加工しても、素材自体パイ
プ状のものを用いてもよい。Examples of the form of the joint of the present invention include a pipe-like joint that covers the entire circumference of the joint, and a plate-like joint that is inserted into one or more places of the joint. In the case of a pipe joint, a single plate may be processed, or the material itself may be pipe-shaped.
以下本発明の一実施例を示す。 An embodiment of the present invention will be shown below.
内径２０ｍ、肉厚１ｗ１１の金属パイプ１と外径１８．
５調の木製丸棒２を接合する目的で、組成５０．２ａｔ
％Ｎｕ−Ｔｉからなり板厚が０．５ｎｎの板材を第１図
に示す波形形状に加工し、拘束した状態で４５０℃Ｘ
ＩＨｒ保持水冷の形状記憶処理を実施した。次に氷水中
浸漬後、すばやく平滑に伸ばし、かつ丸めて、第２図に
示すようにパイプ状にしたのち、上記金属パイプと丸棒
の間隙に挿入した。さらに、８０℃に加熱したところ、
形状記憶合金継手の形状回復により、パイプと丸棒は強
固に接合した。なお第３図には、接合部の概略図を示し
ている。A metal pipe 1 with an inner diameter of 20 m and a wall thickness of 1w11 and an outer diameter of 18.
For the purpose of joining 5 tone wooden round bars 2, composition 50.2at
A plate material made of %Nu-Ti and having a thickness of 0.5 nn was processed into the corrugated shape shown in Fig. 1, and heated at 450°C in a restrained state.
Shape memory treatment with IHr retention and water cooling was performed. Next, after immersing it in ice water, it was quickly stretched smooth and rolled into a pipe shape as shown in FIG. 2, and then inserted into the gap between the metal pipe and the round bar. Furthermore, when heated to 80°C,
The pipe and round bar were firmly joined by the shape recovery of the shape memory alloy joint. Note that FIG. 3 shows a schematic diagram of the joint portion.
本実施例では、接合部位全周域をカバーするパイプ状の
継手を示したが、前述のようにパイプ状継手を分割した
ような板状の継手を接合部位に１または２以上挿入し、
接合してもよい、また本実施例では、規則性をもった波
形の記憶・形状の例を示したが、本発明における波形と
はこれに限定されず、不規則な波形であっても良いし、
波形は曲線のみから構成される必要はなく、角部を有し
ていても差し支えない。In this embodiment, a pipe-shaped joint that covers the entire circumference of the joint is shown, but as described above, one or more plate-shaped joints, which are divided into pipe-like joints, are inserted into the joint,
In addition, although this example shows an example of memorizing and shaping a regular waveform, the waveform in the present invention is not limited to this, and may be an irregular waveform. death,
The waveform does not need to be composed only of curved lines, and may have corners.
以上説明したように１本発明によると相手が金属以外の
場合や、肉厚の薄いパイプとの接合にｉいて、外観を損
なうことなく、強固な接合が可能である。As explained above, according to the present invention, strong bonding can be achieved without impairing the appearance when the mating material is other than metal or when bonding to thin-walled pipes.
第１図は継手の記憶形状を示す図、第２図はマルテンサ
イト状態で平滑に成形された継手の形状を示す図、第３
図は接合部の概略を示す図である。
１：金属パイプ、２：木製丸棒、３：継手。Figure 1 shows the memorized shape of the joint, Figure 2 shows the shape of the joint smoothly formed in the martensitic state, and Figure 3
The figure is a diagram schematically showing a joint. 1: Metal pipe, 2: Wooden round bar, 3: Fitting.
Claims (1)
する部材との隙間にあって両者を接合する形状記憶合金
製継手であって、該継手は波形に形状記憶処理されてい
ることを特徴とする継手。 ２ 口径の大きな部材と、該口径よりも小さい外径を有
する部材とを接続する方法において、基本的に、 （１）形状記憶合金板材を波形に記憶処理する工程、（
２）マルテンサイト相で波形を延ばす工程、（３）前記
口径の大きな部材と前記小さい外径を有する部材との接
合部位の間隙に沿って波形が延ばされた状態の形状記憶
合金を挿入する工程、（４）加熱して、波形形状に復帰
させる工程、よりなることを特徴とする接続方法。[Claims] 1. A joint made of a shape memory alloy that joins a member with a large diameter and a member with an outer diameter smaller than the diameter in a gap, the joint being subjected to shape memory treatment in a corrugated shape. A fitting characterized by: 2. A method for connecting a member with a large diameter and a member with an outer diameter smaller than the diameter basically includes the following steps: (1) memory treatment of a shape memory alloy plate material into a corrugated shape;
2) A step of extending the corrugations in the martensitic phase; (3) inserting the shape memory alloy with the corrugations extended along the gap between the large diameter member and the small outer diameter member; (4) a step of heating to restore the waveform shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25223386A JPS63105842A (en) | 1986-10-23 | 1986-10-23 | Joint and connecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25223386A JPS63105842A (en) | 1986-10-23 | 1986-10-23 | Joint and connecting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63105842A true JPS63105842A (en) | 1988-05-11 |
Family
ID=17234369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25223386A Pending JPS63105842A (en) | 1986-10-23 | 1986-10-23 | Joint and connecting method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63105842A (en) |
-
1986
- 1986-10-23 JP JP25223386A patent/JPS63105842A/en active Pending
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