JPS58133791A - Method of connecting hollow conductor - Google Patents
Method of connecting hollow conductorInfo
- Publication number
- JPS58133791A JPS58133791A JP1587382A JP1587382A JPS58133791A JP S58133791 A JPS58133791 A JP S58133791A JP 1587382 A JP1587382 A JP 1587382A JP 1587382 A JP1587382 A JP 1587382A JP S58133791 A JPS58133791 A JP S58133791A
- Authority
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- Prior art keywords
- hollow
- joint
- hollow conductor
- conductor
- conductors
- 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.)
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- Manufacturing Of Electrical Connectors (AREA)
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】 本発明は中空導体の接続方法の改良に関する。[Detailed description of the invention] The present invention relates to an improvement in a method for connecting hollow conductors.
中空導体は、その中空内に純水等の冷却媒体を流通して
、通電に伴う発熱を有効に冷却しえるもので弗る。この
ため、′＃Ｌ流密度が高い＠電機や核融合機器の導・体
として、近年多用されてきている。The hollow conductor is filled with a cooling medium such as pure water that can be circulated through the hollow space to effectively cool down the heat generated due to energization. For this reason, in recent years it has been widely used as a conductor for electric machinery and nuclear fusion equipment, which have a high flow density.
この中空導体の接続方法として、従来はろう付やＴＩＧ
溶接が採用されている。ろう付にあっては、例えば第１
図（、）に示すような、継手１。Conventionally, methods for connecting this hollow conductor include brazing and TIG.
Welding is used. In brazing, for example, the first
Joint 1 as shown in figure (,).
１′を成す開先部分が、軸方向に対して直角に形成され
た中空導体２，２′を、その継手１，１′部を加熱して
、ろう付によシ接続した場合は、継手１，１′部の断面
積は小さく、この継手１．１′部に応力が加わったとき
、単位面積ｉｂに受ける応力は大きく、従りて継手１．
１′部の強度は弱く、また継手１，１′部の面は１００
チで接続することは困難である。If the hollow conductors 2, 2', in which the groove portion forming 1' is formed perpendicular to the axial direction, are connected by brazing by heating the joint 1, 1', the joint The cross-sectional area of the joint 1.1' is small, and when stress is applied to the joint 1.1', the stress per unit area ib is large; therefore, the joint 1.1' has a small cross-sectional area.
The strength of the 1' part is weak, and the surface of the joint 1, 1' part is 100
It is difficult to connect via
また第１図（ｂ）に示すように、開先が軸方向に対して
傾め（スカーフ）に形成されたスカーフ継手３，３Ｉを
有した中空導体４，４′をろう付によって接続する場合
にあっては、スカーフ継手３、３′部の断面積は第１図
（＆）で示した継手１。Further, as shown in Fig. 1(b), when hollow conductors 4 and 4' having scarf joints 3 and 3I whose grooves are formed in a scarf manner with respect to the axial direction are connected by brazing. In this case, the cross-sectional area of the scarf joints 3 and 3' is the joint 1 shown in FIG. 1 (&).
１′部よシも大きくなシ、単位面積当シに受ける応力は
小さくなる。しかしながら、スカーフ継手３，３′の断
面積をある程度大きくすると、ろ５付の際の素材への加
熱によって、スカーフ継手３．３Ｉ部は材質劣化が起こ
シ、スカーフ継手３．３′部の強度が低下することがあ
った。また接続面の全体を均一に、且つ１００％接続を
実現することは、８１ｍ（ａ）と同様に、やはシ困離で
あり、中空導体４，４′の中空部に流通する冷却媒体は
漏洩を起こす。If the 1' part is also larger, the stress per unit area will be smaller. However, if the cross-sectional area of the scarf joints 3, 3' is increased to a certain extent, the material of the scarf joint 3.3I will deteriorate due to the heating of the material when attaching the filter 5, and the strength of the scarf joint 3.3' will be reduced. sometimes decreased. Also, it is difficult to achieve uniform and 100% connection over the entire connection surface, as in 81m(a), and the cooling medium flowing through the hollow parts of the hollow conductors 4 and 4' is cause a leak.
上記第１図（ａ） 、 （ｂ）で示したろう付による中
空導体２，２′及び４，４′の接続にあって、不完全接
続による漏洩の対策として、接続面を再加熱して手直し
する方法が採られているが、この場合、再加熱によって
生じる継手１，１１及び３゜３′部の材質劣化が起こシ
、また接続面の加工精度が悪くなる欠点を有している。When connecting the hollow conductors 2, 2' and 4, 4' by brazing as shown in Figures 1 (a) and (b) above, as a measure against leakage due to incomplete connections, the connection surfaces are reheated and reworked. However, this method has the disadvantage that material deterioration of the joints 1, 11 and 3.degree. 3' portions occurs due to reheating, and that the machining accuracy of the connecting surfaces deteriorates.
上記のような欠点を有したろう付による接続に換って最
近は第２図に示すようなＴＩＧ＠接による方法が多用さ
れるようになってきている。In place of the brazing connection which has the above-mentioned drawbacks, a TIG@ connection method as shown in FIG. 2 has recently come into widespread use.
即ち、第２図に示すように、中空導体５，５１の開先に
形成された継手６．６′の外周部にテーパ７．７Ｉを形
成し、このテーパ４７．Ｆ’をＴＩＧ ＠接によシ、穴
部め溶接して、両中空導体６，５′を接続したものであ
る。That is, as shown in FIG. 2, a taper 7.7I is formed on the outer periphery of the joint 6.6' formed at the groove of the hollow conductor 5, 51, and this taper 47. Both hollow conductors 6 and 5' are connected by TIG @ contact welding of F' and hole welding.
この場合、接続面全体を完全に溶融して接続することは
困難であシ、ま九継手６．６′部の中空断面の形状が粗
雑になシ、着た継手６．＃１部の強度も、中空導体５．
５′の素材と同等にはならず、また熱による影畳による
材質劣化も問題となっていた。In this case, it is difficult to completely melt and connect the entire connecting surface, and the shape of the hollow cross section of the joint 6.6' is rough. The strength of the #1 part is also the same as that of the hollow conductor 5.
It was not the same as the material used in 5', and there was also the problem of material deterioration due to shadows caused by heat.
以上述べたことを下記にまとめると、近時、中空導体２
．２′、４．４′及び５，５′の継手１゜１′、３．Ｊ
′及び６，６′に要求される、素材同勢の機械的性能及
び漏洩の防止に対して、従来の接続方法であるろう付中
ＴＩＱ溶接の方法にあっては、継手１．１′、３．３′
及び６，６′部の特性を向上するために、継手１．１′
、Ｓ、３′及び６゜６′に加える熱量を少なくすると、
不完全接続となシ、冷却媒体の漏洩が生じ易くなシ、一
方漏洩対策としてスカーフ継手４．４′等を採用すると
継手断面積が大きくなシ、接続部の加熱量が多く必要と
な９、このために材質劣化が生じて、強度が低下する欠
点があった。To summarize what has been said above, recently, hollow conductors 2
．． 2', 4.4' and 5,5' joints 1°1', 3. J
1.1' and 6,6', the conventional connection method, TIQ welding during brazing, requires joints 1.1', 1.1', 3.3'
In order to improve the characteristics of the 6 and 6' parts, the joint 1.1'
, S, 3' and 6°6' are reduced,
If a scarf joint 4.4' etc. is used as a leakage prevention measure, the cross-sectional area of the joint will be large and a large amount of heating will be required at the connection.9 Therefore, there was a drawback that material deterioration occurred and strength decreased.
本発明は上記事情にかんがみてなされたもので、継手の
機械的特性が素材と略同等にし得、且つ中空部を流通す
る冷却媒体の漏洩が無い中空導体の接続方法を提供する
ことを目的とする。The present invention was made in view of the above-mentioned circumstances, and an object of the present invention is to provide a method for connecting hollow conductors in which the mechanical properties of the joint can be made almost the same as those of the material, and there is no leakage of the cooling medium flowing through the hollow part. do.
本発明は上記目的を達成するために、中空導体の継手を
なす開先形状を、内周面と外周面の少なくともいずれか
一方にチー・母を形成したものとし、これを加圧・圧接
によ）接続する方法とするものである。In order to achieve the above object, the present invention has a groove shape forming a joint of a hollow conductor with a groove formed on at least one of the inner circumferential surface and the outer circumferential surface, and this is used for pressurization and pressure welding. ).
以下本発明の一実施例を図面を参照して説明する。第３
図は本発明による中空導体の接続方法のｊＩｌの実施例
を説明する九めの図である。An embodiment of the present invention will be described below with reference to the drawings. Third
The figure is the ninth diagram illustrating an embodiment of the method for connecting hollow conductors according to the present invention.
第３図（、）において８，８′は断面の外形形状が円形
で、同心状に内部に中空９，９′を有する中空導体で、
この中空導体８．８′の各開先部には、これらが対向し
て接続される継手１０．１０’が形成され、その中空９
１ｇ′側の内周部にはテーパ１１．１１’が形成されて
いる。In Fig. 3 (,), 8 and 8' are hollow conductors having a circular external shape in cross section and concentric hollows 9 and 9' inside.
A joint 10.10' is formed in each groove of the hollow conductor 8.8' to connect the hollow conductor 8.8' facing each other.
A taper 11.11' is formed on the inner peripheral portion on the 1g' side.
また、本発明においては、上記の中空導体デ。Moreover, in the present invention, the above-mentioned hollow conductor de.
す′を接続するに圧接による方法を採用する。この圧接
は、接続部をなす継手１０．１０’部を溶融せずに、所
定の環境条件下で加圧し、継手１０．１０’をなすチー
Δ１１，１１’の層性変形に伴うメタルスローによりて
接続するものであるが、このメタルスローの方向性と均
一性を制御することが、良好な接続を得るにありて社重
要である。A pressure welding method is used to connect the parts. This pressure welding is achieved by applying pressure under specified environmental conditions without melting the joint 10.10' forming the connection part, and by metal throw due to layered deformation of the chis Δ11, 11' forming the joint 10.10'. However, it is important to control the directionality and uniformity of this metal throw in order to obtain a good connection.
第３図（ａ）において、中空９−を有する中空導体１は
、継手１０，１０１を介して中空導体８′に突き合わさ
れた状態にあるが、これを所定の環境条件下で両側から
加圧することによシ第３図（ｂ）に示すように継手１０
．１０’はメタルフローによるパリ１２を形成し表から
密着状態になる。In FIG. 3(a), the hollow conductor 1 having the hollow 9- is butted against the hollow conductor 8' via the joints 10 and 101, and this is pressurized from both sides under predetermined environmental conditions. Particularly, as shown in FIG. 3(b), the joint 10
．． 10' forms a gap 12 due to metal flow and becomes in close contact from the front side.
第３図（＠）は本発明に用いられる中空導体８の継手１
０をなす開先形状の寸法を示す図である。Figure 3 (@) shows the joint 1 of the hollow conductor 8 used in the present invention.
It is a figure which shows the dimension of the groove shape which makes 0.
前述したように圧接においては、メタルスローの方向性
を制御することが重要であシ、＃１３図（ｃ）のテーノ
ｅｌｌが形成される中空９の内周面に対してチー・母角
度αが何度程度で、そして、継手１０の端部の最小肉厚
寸法ｔ ｍｉｍが、この中空尋体８の肉厚寸法ｌに対し
てどの程度の値を採用した場合が嵐好な接続が実現され
るかを調べる必要がある。As mentioned above, in pressure welding, it is important to control the directionality of the metal throw. , and what value is adopted for the minimum wall thickness dimension t mim of the end of the joint 10 relative to the wall thickness dimension l of the hollow body 8 to achieve a perfect connection. It is necessary to investigate whether it is possible.
表１及び表２は前記チー・９角度α、及び最小肉厚寸法
ｔ ｍｉｍ＋の寸法に接続状態の良否を試験し、これを
表にまとめたものである。この良否の判定は、継手１０
部の中空９の内周面と外周面が完全に接続される場合で
、漏洩が生じない状態には嵐とし、それを○で表わし、
不完全な接続で、漏洩が生じた場合を×で表わしている
。Tables 1 and 2 are the result of testing the quality of the connection state with respect to the dimensions of the Q-9 angle α and the minimum wall thickness dimension t mm+, and the results are summarized in tables. This judgment of quality is based on the joint 10
When the inner circumferential surface and outer circumferential surface of the hollow 9 in the section are completely connected and no leakage occurs, it is considered a storm and is represented by a circle.
A case where leakage occurs due to incomplete connection is indicated by an x.
表 １
表 ２
衆１及び表２の実験結果によれシ、テーノ４１１．１１
’はテーパ角度αを４５度で形成し、好な接続状態が得
られることがわかりた。Table 1 Table 2 According to the experimental results in Table 1 and Table 2, the results are as follows:
' was formed with a taper angle α of 45 degrees, and it was found that a good connection state could be obtained.
以上述べた実施例では、中空導体８．８′の中空９．９
′の内周側の開先にチー・臂角度αを４５部以上にして
チーＡｌｌ、１１’を形成した継手１０．１０’とした
ので、継手１０．１０’部を両側から加圧して、所定環
境条件下で央き合せる圧接による接続を行なうと、チー
ル４Ｊ１ｅ１１’部は層性変形し、これに伴りたメタル
フｐ−によシ冷却媒体の漏洩が起こらない良好な接続が
実現される。In the embodiment described above, the hollow conductor 8.8' has a hollow 9.9
Since the joint 10.10' is formed with a chi All, 11' with a chi-elbow angle α of 45 parts or more on the groove on the inner peripheral side of the joint 10.10', pressure is applied to the joint 10.10' from both sides, When a connection is made by pressure welding in which the centers are brought together under specified environmental conditions, the part of the steel 4J1e11' undergoes layered deformation, and the accompanying metal cover realizes a good connection in which no leakage of the cooling medium occurs. .
また、接続部は溶融のための加熱は行方っていないので
、素材の材質劣化は生じない。Furthermore, since the connecting portion is not heated for melting, no material deterioration occurs.
次に第４図を参照して本発明の第２の実施例を説明する
。Next, a second embodiment of the present invention will be described with reference to FIG.
第４図において、ＩＳは断面の外形形竺が四角形で、内
部に中空Ｊ４．Ｆ≠を有する中空導体で、この中空導体
１３の各開先部には、これらが対向して接続される継手
１５が形成され、その中空１４の内周面及び外周面には
チー・９環境条件下で両側から加圧されることによシ、
継手１５，１１５”はｊＩｌの実施例と同様なメタルフ
ローによるノ４りを形成しながら密着状態になる。In FIG. 4, IS has a square cross-sectional outline and a hollow space J4. A hollow conductor having F≠, a joint 15 is formed at each groove portion of this hollow conductor 13 to connect these joints facing each other, and the inner and outer peripheral surfaces of the hollow conductor 14 are provided with a Qi-9 environment. By being pressurized from both sides under certain conditions,
The joints 15 and 115'' come into close contact while forming a groove due to metal flow similar to the embodiment of jIl.
尚、この第２の実施例におけるチー／譬１６ ＋１６１
及び１１，１戸社第１の実施例と同様に考えて、テーノ
ｆ角度αは４５度以上とし、また継以上述べた本発明の
第２の実施例は、断面の外形形状が四角形で、中心に円
形の中空１４゜１４１を有した中空導体１３．１３’の
場合にあって、内周面に沿ってのみチー・ｅＪ ６ 、
Ｊ６４カ形成されると継手１５．１５ゝの肉厚寸法が
同一とならない場合に採用される亀のである。この場合
は、中空導体１３，１−の継手の内外周面に変形に伴う
メタルフローを均一にし得、更に通電加熱等の場合にも
電流密度をｔｌは均等にし、接続面の周囲の発熱量も一
定とな〕、一層均一なメタル７０−が得られることによ
り、を九、この場合も内周面に沿ってテーノ譬が形成さ
れているので、メタルフローの方向性が主として導体の
外周方向に確保され、これらによシ良好な接続が実現で
きる。Furthermore, in this second embodiment, Qi/Para 16 +161
And 11,1 HouseshaConsidering the same as the first embodiment, the teno f angle α is set to be 45 degrees or more, and the second embodiment of the present invention described above has a cross-sectional external shape of a quadrilateral, In the case of a hollow conductor 13.13' with a circular hollow 14° 141 in the center, Qi eJ 6 only along the inner circumferential surface,
J64 is used when the wall thickness of the joint 15.15゜ is not the same when it is formed. In this case, the metal flow due to deformation can be made uniform on the inner and outer circumferential surfaces of the joint of the hollow conductors 13, 1-, and even in the case of electrical heating, the current density tl can be made equal, and the amount of heat generated around the connection surface can be made uniform. ], a more uniform metal 70- is obtained, and in this case as well, since the metal flow is formed along the inner circumferential surface, the directionality of the metal flow is mainly in the outer circumferential direction of the conductor. This ensures that a good connection can be achieved.
ま九本発明は上記実施例に限定されるものではなく、例
えば中空導体の中空部の断面の形状が異なるもの、ある
いは中空導体の断面の外形ようにテーノ母を形成したも
のを圧接すると、良好な接続状態が得られる。(9) The present invention is not limited to the above-mentioned embodiments. For example, when hollow conductors with different cross-sectional shapes of the hollow portions, or hollow conductors with a Teno matrix formed in the cross-sectional shape, can be welded together by pressure. A good connection status can be obtained.
尚、本尭明紘上記実施例に限定されるものではなく、種
々変形して実施できる。It should be noted that the present invention is not limited to the above-mentioned embodiments, and can be implemented with various modifications.
以上述べた本発明によれは、継手の機械的特性が素材と
略同等にし得、且つ中空部を流通する冷却媒体の漏洩が
無い中空導体の接続方法が提供できる。According to the present invention described above, it is possible to provide a method for connecting hollow conductors in which the mechanical properties of the joint can be made substantially equal to those of the material, and there is no leakage of the cooling medium flowing through the hollow portion.
Ｍ１図は従来のろう付による中空導体の接続方法を説明
するための図、第２図は従来のＴＩＧ溶接による中空導
体の接続方法を説明するための図、第３図は本発明によ
る中空導体の接続方法の第１の実施例を説明するための
図、譲４図は本発明による中空導体の接続方法の第２の
実施例を説明するための図である。
１．１′・・・継手、２，２′・・・中空導体、３，３
′・・・スカーフ継手、４．４′・・・中空導体、５．
６′・・・中空導体、６，６′・・・継手、７，７′・
・・テーノ譬、８゜８′・・・中空導体、９．９’・・
・中空、１０．１０’・・・継手、１１．１１’・・・
テーノ譬、１２・・・パリ、１３１ｍ−・・中空導体、
１４ｖ＝４＝４＝！−・・・中空、１５−ヰ・・・継手
、１６ぞ主１・・・チー／４．１７ｆ中−・・・ テ
− ノ昔。 １シ；１１＝口Ｉ＝χ愛＝１ト＝ｉ＝出
願人代理人 弁理士 鈴 江 武 彦第１図
第２図
第３図
（ａ）Figure M1 is a diagram for explaining a method for connecting hollow conductors by conventional brazing, Figure 2 is a diagram for explaining a method for connecting hollow conductors by conventional TIG welding, and Figure 3 is a diagram for explaining a method for connecting hollow conductors by conventional TIG welding. FIG. 4 is a diagram for explaining a second embodiment of the method for connecting hollow conductors according to the present invention. 1.1'...Joint, 2,2'...Hollow conductor, 3,3
'...Scarf joint, 4.4'...Hollow conductor, 5.
6'...Hollow conductor, 6,6'...Joint, 7,7'...
...Theno parable, 8°8'...Hollow conductor, 9.9'...
・Hollow, 10.10'...Joint, 11.11'...
Theno Parable, 12...Paris, 131m-...Hollow Conductor,
14v=4=4=! -...Hollow, 15-ヰ...Joint, 16-zo Main 1...Chee/4.17f Medium-...Te
- A long time ago. 1shi;11=口I=χai=1to=i=Applicant's agent Patent attorney Takehiko Suzue Figure 1 Figure 2 Figure 3 (a)
Claims (1)
手をなす開先部分に、内周面端部と外周面一部の少なく
ともいずれか一方にテーノ９を形成し、この第１．第２
の中空導体の継手を圧接によシ接続することを特徴とす
る中空導体の接続力法。 （２） 特許請求の範囲第１項記載のチーｉ＋は素材
の肉厚寸法の１／４だけ平坦部を残して形成したことを
特徴とする中空導体の接続方法。[Claims] (i) The first . A teno 9 is formed on at least one of the end of the inner circumferential surface and a part of the outer circumferential surface of the groove portion forming the joint of the second hollow conductor. Second
A connecting force method for hollow conductors, which is characterized by connecting hollow conductor joints by pressure welding. (2) A method for connecting a hollow conductor, characterized in that the chi i+ according to claim 1 is formed with a flat portion remaining 1/4 of the wall thickness of the material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1587382A JPS58133791A (en) | 1982-02-03 | 1982-02-03 | Method of connecting hollow conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1587382A JPS58133791A (en) | 1982-02-03 | 1982-02-03 | Method of connecting hollow conductor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58133791A true JPS58133791A (en) | 1983-08-09 |
| JPH0210553B2 JPH0210553B2 (en) | 1990-03-08 |
Family
ID=11900910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1587382A Granted JPS58133791A (en) | 1982-02-03 | 1982-02-03 | Method of connecting hollow conductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58133791A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5750247A (en) * | 1996-03-15 | 1998-05-12 | Kennametal, Inc. | Coated cutting tool having an outer layer of TiC |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55136484A (en) * | 1979-04-12 | 1980-10-24 | Furukawa Electric Co Ltd | Method of connecting superconductor |
-
1982
- 1982-02-03 JP JP1587382A patent/JPS58133791A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55136484A (en) * | 1979-04-12 | 1980-10-24 | Furukawa Electric Co Ltd | Method of connecting superconductor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5750247A (en) * | 1996-03-15 | 1998-05-12 | Kennametal, Inc. | Coated cutting tool having an outer layer of TiC |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0210553B2 (en) | 1990-03-08 |
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