JPH03140690A - Manufacture of shape memory alloyed pipe coupling - Google Patents
Manufacture of shape memory alloyed pipe couplingInfo
- Publication number
- JPH03140690A JPH03140690A JP27721089A JP27721089A JPH03140690A JP H03140690 A JPH03140690 A JP H03140690A JP 27721089 A JP27721089 A JP 27721089A JP 27721089 A JP27721089 A JP 27721089A JP H03140690 A JPH03140690 A JP H03140690A
- Authority
- JP
- Japan
- Prior art keywords
- shape memory
- pipe coupling
- diameter
- shape
- welding
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 230000008878 coupling Effects 0.000 title abstract 3
- 238000010168 coupling process Methods 0.000 title abstract 3
- 238000005859 coupling reaction Methods 0.000 title abstract 3
- 238000005452 bending Methods 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 8
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 abstract description 2
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 2
- 239000011261 inert gas Substances 0.000 abstract 1
- 238000003860 storage Methods 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は形状記憶合金管継手の製造方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing a shape memory alloy pipe joint.
［従来の技術］
形状記憶合金による管継手として、特公昭５４−４８４
８号に開示されているものがある。この管継手１１は第
３図に示すように、締付面に複数の環状突起１２を設け
て構成されている。そして、円筒状の継手部材の両端か
ら接続すべき管１０の管端を挿入し、上記継手部材を遷
移温度以上に加熱することにより、該継手部材を拡径あ
るいは縮径させ環状突起１２を接続すべき管１０の外面
に食い込ませて液密に管を接続するようになっている。[Prior art] As a pipe joint made of shape memory alloy, Japanese Patent Publication No. 54-484
There is something disclosed in No. 8. As shown in FIG. 3, this pipe joint 11 is constructed by providing a plurality of annular protrusions 12 on the tightening surface. Then, the pipe ends of the pipes 10 to be connected are inserted from both ends of the cylindrical joint member, and by heating the joint member above the transition temperature, the joint member is expanded or contracted in diameter and the annular protrusion 12 is connected. It is designed to bite into the outer surface of the pipe 10 to be connected in a liquid-tight manner.
この管継手は、一般にシームレス圧延された管状部材を
機械加工することにより製造されている。This pipe joint is generally manufactured by machining a seamlessly rolled tubular member.
［解決しようとする課題］
ところで、管継手が適用される管は小径のものから大径
のものまで各種あるが、シームレス圧延では例えば管外
径が１５０ ａｍ以上の大径用のものは管厚の偏肉によ
り均一な拡管変形が得られない。[Problem to be solved] By the way, there are various types of pipes to which pipe joints are applied, from small diameter to large diameter pipes, but in seamless rolling, for example, large diameter pipes with an outer diameter of 150 am or more have a pipe thickness. Uniform tube expansion deformation cannot be achieved due to uneven thickness.
また、接続すべき管の肉厚も薄肉のものから厚肉のもの
まで各種あり、薄肉の管には薄肉の管継手を使用するが
、シームレス圧延では、Ｄ／ｌが２０以上の薄肉管の圧
延が難しい。In addition, the wall thickness of the pipes to be connected varies from thin to thick, and thin-walled pipe fittings are used for thin-walled pipes, but in seamless rolling, thin-walled pipes with a D/l of 20 or more are used. Difficult to roll.
本発明は上記のような問題点を解消できるようにした形
状記憶合金管継手の製造方法を提供することを課題とす
るものである。An object of the present invention is to provide a method for manufacturing a shape memory alloy pipe joint that can solve the above-mentioned problems.
［課題を解決するための手段］
本発明の形状記憶合金管継手の製造方法は、形状記憶特
性を有する板材を曲げ加工し円筒状に成形した後に、突
き合わせ溶接を行い、そのままの形またはそれを伸管し
た形を記憶熱処理し、それに拡径あるいは縮径の加工歪
みを与えて管継手を製造することを特徴とするものであ
る。[Means for Solving the Problems] The method for manufacturing a shape memory alloy pipe joint of the present invention involves bending a plate material having shape memory characteristics and forming it into a cylindrical shape, and then butt welding the same shape or forming it into a cylindrical shape. This method is characterized in that a pipe joint is manufactured by subjecting the elongated pipe to memory heat treatment and applying processing distortion to enlarge or reduce the diameter.
［作 用コ
板材を曲げ加工して管継手を製造するので、小径のもの
から大径のものまで容易に製造することができる。また
、薄肉の管継手も容易に製造することができる。[Function] Since the pipe joints are manufactured by bending the plate material, it is possible to easily manufacture pipe joints from small to large diameters. Moreover, thin-walled pipe joints can also be easily manufactured.
［実施例］
以下、本発明の一実施例を形状記憶特性を有するステン
レス鋼系の板材（９Ｃｒ−１４Ｍｎ−５Ｎ １−６Ｓ
ｆ−Ｆ ｅ）を用いて製造した場合について第１図を参
照しながら説明する。[Example] Hereinafter, an example of the present invention will be described using a stainless steel plate material (9Cr-14Mn-5N 1-6S) having shape memory characteristics.
The case of manufacturing using f-F e) will be explained with reference to FIG.
ａ）１は上記組成の板材である。a) 1 is a plate material having the above composition.
ｂ）板材１を円筒状に曲げ加工する。b) Bending the plate material 1 into a cylindrical shape.
Ｃ）曲げ加工された板材１の端部を例えば’Ｉ’ Ｉ
Ｇにより突合せ溶接する。C) The edge of the bent plate material 1, for example 'I' I
Butt weld with G.
ｄ）溶接により管になった素材を、例えば６００℃で１
時間形状記憶処理する。d) Weld the material into a tube at 600℃ for example.
Temporal shape memory processing.
ｅ）形状記憶処理された素材に、例えば４〜６％拡径し
て加工歪みを与える。e) Apply processing strain to the shape memory treated material by expanding its diameter by, for example, 4 to 6%.
ｆ）最後に、仕上げ加工をして管継手が製造される。f) Finally, the pipe fitting is manufactured by finishing processing.
なお、上記実施例は拡径して加工歪みを与えたが、拡径
形状復帰をさせる場合には、縮径して加工歪みを与える
。In the above embodiment, the diameter was expanded to give processing strain, but when returning to the expanded diameter shape, the diameter was reduced to give processing strain.
なお、第２図に示すように、板材２の圧延時に、板曲げ
方向に複数のリブ３を形成して圧延しておき、これを曲
げ成形することにより、周内面に突起を有する管継手を
製造することができる。これにより、突起形成のための
機械加工を省略することができる。As shown in FIG. 2, when rolling the plate material 2, a plurality of ribs 3 are formed in the bending direction of the plate material, and by bending the ribs 3, a pipe joint having protrusions on the circumferential inner surface is formed. can be manufactured. Thereby, machining for forming the projections can be omitted.
［発明の効果］
本発明の管継手の製造方法は上記のようなもので、板材
を曲げ加工して管継手を製造するので、小径のものから
大径のものまで容易に製造することができる。また、薄
肉の管継手も容易に製造することができる。[Effects of the Invention] The method for manufacturing the pipe joint of the present invention is as described above, in which the pipe joint is manufactured by bending a plate material, so that it is possible to easily manufacture pipe joints from small diameters to large diameters. . Moreover, thin-walled pipe joints can also be easily manufactured.
第１図は本発明方法を手順を追って示す説明図、第２図
（ａ）、（ｂ）は板材にリブをつけて圧延したものの平
面図と側面図、第３図は形状記憶合金管継手を管を接続
した状態で示す断面図である。Figure 1 is an explanatory diagram showing the method of the present invention step by step, Figures 2 (a) and (b) are a plan view and side view of a plate material rolled with ribs, and Figure 3 is a shape memory alloy pipe joint. FIG.
Claims (1)
た後に、突き合わせ溶接を行い、そのままの形またはそ
れを伸管した形を記憶熱処理し、それに拡径あるいは縮
径の加工歪みを与えて管継手を製造することを特徴とす
る形状記憶合金管継手の製造方法。After bending a plate material with shape memory properties and forming it into a cylindrical shape, we perform butt welding, then apply memory heat treatment to the same shape or the stretched shape, and then apply processing distortion to expand or contract the diameter to create a tube. A method for manufacturing a shape memory alloy pipe joint, the method comprising manufacturing a joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1277210A JP2846900B2 (en) | 1989-10-26 | 1989-10-26 | Manufacturing method of shape memory alloy pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1277210A JP2846900B2 (en) | 1989-10-26 | 1989-10-26 | Manufacturing method of shape memory alloy pipe joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03140690A true JPH03140690A (en) | 1991-06-14 |
| JP2846900B2 JP2846900B2 (en) | 1999-01-13 |
Family
ID=17580347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1277210A Expired - Lifetime JP2846900B2 (en) | 1989-10-26 | 1989-10-26 | Manufacturing method of shape memory alloy pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2846900B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5490622A (en) * | 1977-12-27 | 1979-07-18 | Taguchi Chobee | Coupling* packing and washer in alloy that have effect memorizing shape |
| JPS61142025A (en) * | 1984-12-11 | 1986-06-28 | Kato Hatsujo Kaisha Ltd | Preparation of clamp made of shape memory alloy |
-
1989
- 1989-10-26 JP JP1277210A patent/JP2846900B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5490622A (en) * | 1977-12-27 | 1979-07-18 | Taguchi Chobee | Coupling* packing and washer in alloy that have effect memorizing shape |
| JPS61142025A (en) * | 1984-12-11 | 1986-06-28 | Kato Hatsujo Kaisha Ltd | Preparation of clamp made of shape memory alloy |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2846900B2 (en) | 1999-01-13 |
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