JPH0817487A - Superconducting wire connecting method - Google Patents

Superconducting wire connecting method

Info

Publication number
JPH0817487A
JPH0817487A JP15010894A JP15010894A JPH0817487A JP H0817487 A JPH0817487 A JP H0817487A JP 15010894 A JP15010894 A JP 15010894A JP 15010894 A JP15010894 A JP 15010894A JP H0817487 A JPH0817487 A JP H0817487A
Authority
JP
Japan
Prior art keywords
superconducting
wires
wire
connection
heat treatment
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
Application number
JP15010894A
Other languages
Japanese (ja)
Inventor
Susumu Mitsune
Yukihiro Sumiyoshi
進 三根
幸博 住吉
Original Assignee
Toshiba Corp
株式会社東芝
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, 株式会社東芝 filed Critical Toshiba Corp
Priority to JP15010894A priority Critical patent/JPH0817487A/en
Publication of JPH0817487A publication Critical patent/JPH0817487A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To simply connect together superconducting strands of Nb3Sn with easiness in works, with a high reliance upon the performance, and in a compacted configuration of the connection part. CONSTITUTION:The ends of at least two strands 2 are connected with each other, wherein each strand is formed by twining together a number of superconducting element wires 1 made of Nb3Sn before being subjected to a heat treatment. Therein connecting blocks 6, 7 made of Nb3Sn are fixed to the ends of the strands, put in pressure attachment to the strands in order to eliminate the gap between the strands, followed by a heat treatment, and are connected together by soldering.

Description

【発明の詳細な説明】Detailed Description of the Invention
【0001】[0001]
【産業上の利用分野】本発明は、核融合装置に用いられ
る超電導磁石やエネルギー貯蔵装置としての超電導磁石
等の大型且つ大電流を通電する超電導磁石に使用される
Nb3 Snからなる超電導線の接続方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a superconducting wire made of Nb 3 Sn used for a large-sized and large-current superconducting magnet such as a superconducting magnet used in a nuclear fusion device or a superconducting magnet used as an energy storage device. Regarding connection method.
【0002】[0002]
【従来の技術】従来の超電導磁石に使用されるNb3
nからなる超電導線の接続方法としては、熱処理済みの
Nb3 Snからなる超電導素線を数十乃至数百本撚り合
わせた2本の撚線の端部同士を突合わせて押圧し、且つ
この部分を通電加熱して融着する接続方法が採用されて
いる。
Nb 3 S used in conventional superconducting magnets
As a method of connecting the superconducting wires made of n, the superconducting wires made of heat-treated Nb 3 Sn are twisted together by tens or hundreds of wires and the ends of the two twisted wires are butted against each other and pressed. A connection method is adopted in which the portions are electrically heated and fused.
【0003】図6はかかる従来の超電導線の接続構造を
示すもので、1はNb3 Snからなる超電導素線、2は
この超電導素線1を数十乃至数百本撚り合わせた撚線、
3はこの撚線2を収納するコンジットと呼ばれる管であ
る。また、4は2本の撚線2の接続端部を押圧した後、
通電加熱して形成された接続部で、この接続部4の突合
せ面の周囲部にはバリ5が形成される。
FIG. 6 shows a connection structure of such a conventional superconducting wire. 1 is a superconducting element wire made of Nb 3 Sn, 2 is a stranded wire in which several tens to several hundreds of the superconducting element wires 1 are twisted,
Reference numeral 3 is a pipe called a conduit for accommodating the twisted wire 2. In addition, 4 is after pressing the connection end of the two twisted wires 2,
A burr 5 is formed on the peripheral portion of the abutting surface of the connecting portion 4 in the connecting portion formed by electric heating.
【0004】[0004]
【発明が解決しようとする課題】しかし、このような超
電導線の接続方法では、次のような問題があった。即
ち、接続作業時に取扱う撚線は、熱処理後のNb3 Sn
であり、非常に脆く、折れやすい。このため、撚線の端
部同士を押圧する際、取扱い作業が非常に厄介である。
また、押圧、通電加熱を限られた空間内で行うために、
特殊な装置が必要である。さらに、押圧時に形成された
バリの除去作業が必要である。
However, such a superconducting wire connecting method has the following problems. That is, the twisted wires handled during the connection work are Nb 3 Sn after heat treatment.
It is very brittle and easily broken. For this reason, when pressing the ends of the twisted wires, the handling work is very troublesome.
Also, in order to perform pressing and electric heating in a limited space,
Special equipment is required. Further, it is necessary to remove the burrs formed at the time of pressing.
【0005】このような作業を全体として捕らえると、
同じ接続条件で接続しても接続部の微細構造が必ずしも
同一にならないことが予想される。つまり、接続部の電
気抵抗や接続強度といった性能の信頼性が必ずしも十分
ではなかった。
[0005] If such work is captured as a whole,
Even if they are connected under the same connection conditions, it is expected that the fine structures of the connection portions will not necessarily be the same. That is, the reliability of the performance such as the electric resistance and the connection strength of the connection portion is not always sufficient.
【0006】本発明は、作業性が良く、性能に関する信
頼性が高く、しかも接続部の形状がコンパクトにしてN
3 Snからなる超電導撚線同士を簡単に接続すること
ができる超電導線の接続方法を提供することを目的とす
る。
According to the present invention, the workability is high, the reliability regarding the performance is high, and the shape of the connecting portion is compact.
It is an object of the present invention to provide a method for connecting superconducting wires, which enables superconducting stranded wires made of b 3 Sn to be easily connected to each other.
【0007】[0007]
【課題を解決するための手段】本発明は上記の目的を達
成するため、次のような接続方法により超電導線同士を
接続するものである。請求項1に対応する発明は、熱処
理前のNb3 Snからなる多数本の超電導素線を撚り合
わせた少なくとも2本のバンドル形超電導線の端部にN
3 Snからなる嵌め合い構造の接続用ブロックを取付
けて撚線間の空隙を排除すべく撚線と接続用ブロックを
圧着してから熱処理し、その後接続用ブロック同士をハ
ンダ付けして超電導線の端部同士を接続する。
In order to achieve the above object, the present invention connects superconducting wires to each other by the following connecting method. The invention corresponding to claim 1 is that at least two bundle-type superconducting wires formed by twisting a plurality of superconducting element wires made of Nb 3 Sn before heat treatment have N
b 3 a gap between the mounting and the twisted wire connecting block mating structure consisting Sn heat treatment after crimping the stranded wire and the connecting block so as to eliminate, the superconducting wire after which the connection between blocks by soldering Connect the ends of.
【0008】請求項2に対応する発明は、熱処理前のN
3 Snからなる多数本の超電導素線を撚り合わせた少
なくとも2本のバンドル形超電導線の端部同士を接続す
るに際して、前記超電導線の端部を圧着して嵌め合せ部
を形成してから熱処理し、その後嵌め合せ部をハンダ付
けにより超電導線の端部同士を接続する。
The invention corresponding to claim 2 is the N before heat treatment.
When connecting the ends of at least two bundle-type superconducting wires in which a large number of superconducting wires made of b 3 Sn are twisted together, the ends of the superconducting wires are crimped to form a fitting part. After heat treatment, the fitting portions are soldered to connect the ends of the superconducting wires.
【0009】請求項3に対応する発明は、熱処理前のN
3 Snからなる多数本の超電導素線を撚り合わせた少
なくとも2本のバンドル形超電導線の端部を偏平状に圧
縮成形してから熱処理し、その後偏平部を重合せてその
接合面をハンダ付けして超電導線の端部同士を接続す
る。
The invention corresponding to claim 3 is N before heat treatment.
b 3 Sn, the ends of at least two bundle-type superconducting wires formed by twisting together the superconducting wires are flatly compression-molded, then heat-treated, and then the flat parts are polymerized to solder the joint surface. Attach and connect the ends of the superconducting wires.
【0010】[0010]
【作用】請求項1に対応する発明による超電導線の接続
方法にあっては、熱処理前にNb3 Snからなる嵌め合
い構造の接続用ブロックを2本のバンドル形超電導線の
端部に取付け、熱処理後は超電導線相互の位置合せをし
て接合面をハンダ付けにより接続するようにしたので、
熱処理後の作業が単純になると共に、作業性が良くな
り、しかも接続部の電気抵抗や接続部強度のバラツキが
少なくなり、性能に関する信頼性が向上する。また、熱
処理前の作業は合金性の取扱いとなるため、押圧や接続
用ブロックの取付け作業が容易であり、作業性が向上す
る。
In the method for connecting superconducting wires according to the present invention, the connecting block having a fitting structure made of Nb 3 Sn is attached to the ends of the two bundle type superconducting wires before heat treatment. After heat treatment, the superconducting wires are aligned with each other and the joint surfaces are connected by soldering.
The work after the heat treatment is simplified and the workability is improved, and the variations in the electrical resistance of the connection portion and the strength of the connection portion are reduced, and the reliability regarding the performance is improved. Further, since the work before the heat treatment is handled as an alloy, the work of pressing and attaching the connecting block is easy and the workability is improved.
【0011】請求項2に対応する発明による超電導線の
接続方法にあっては、超電導線の端部を圧着して嵌め合
せ部を形成してから熱処理し、その後嵌め合せ部をハン
ダ付けにより接続するようにしたので、上記と同様の作
用効果が得られると共に、接続用ブロックを用いてない
ので、接続部の電気抵抗の低減化が可能である。
In the superconducting wire connecting method according to the second aspect of the present invention, the ends of the superconducting wires are crimped to form a fitting portion, heat treatment is performed, and then the fitting portion is connected by soldering. By doing so, the same effect as the above can be obtained, and since the connecting block is not used, the electric resistance of the connecting portion can be reduced.
【0012】請求項3に対応する発明による超電導線の
接続方法にあっては、超電導線の端部を偏平状に圧縮成
形し、偏平部を重合せてその接合面をハンダ付けにより
接続しているので、上記作用効果に加えて接触面積を大
きくなり、接続部の電気抵抗の低減化を図れると同時
に、偏平なスペースに収納するような場合には有効であ
る。
In the superconducting wire connecting method according to the third aspect of the present invention, the end portions of the superconducting wire are compression-molded into a flat shape, the flat portions are superposed, and the joint surfaces thereof are connected by soldering. Therefore, in addition to the above function and effect, the contact area can be increased, and the electric resistance of the connection portion can be reduced.
【0013】[0013]
【実施例】以下本発明の実施例を図面を参照して説明す
る。図1は本発明の第1の実施例を示す超電導線の接続
構造を示すもので、図6と同一部分には同一符号を付し
て示す。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a superconducting wire connection structure according to a first embodiment of the present invention. The same parts as those in FIG. 6 are designated by the same reference numerals.
【0014】図1において、2は熱処理前のNb3 Sn
からなる超電導素線1を数十乃至数百本撚り合わせてコ
ンジット3内に収納された2本の撚線で、この2本の撚
線2のコンジット3より外部に導出した端部2a,2b
に未熱処理のNb3 Sn材で形成された接続用ブロック
6,7をそれぞれ取付ける。
In FIG. 1, 2 is Nb 3 Sn before heat treatment.
Two superconducting strands 1 consisting of several tens to several hundreds are twisted together and housed in a conduit 3, and the end portions 2a, 2b of the two stranded wires 2 led out from the conduit 3
The connection blocks 6 and 7 made of unheated Nb 3 Sn material are attached to the respective parts.
【0015】この場合、一方の接続用ブロック6は円筒
状に形成され、他方の接続用ブロック7は接続用ブロッ
ク6の中空部内に挿入される突出部7aを有する有底の
円筒状に形成されている。
In this case, one connecting block 6 is formed in a cylindrical shape, and the other connecting block 7 is formed in a bottomed cylindrical shape having a projecting portion 7a inserted into the hollow portion of the connecting block 6. ing.
【0016】また、撚線2の端部に接続用ブロック6,
7を挿入するに際しては、撚線2の端部2a,2bを絞
込んでその径方向寸法をコンジット3内の撚線2のそれ
よりも小さくして接続用ブロック6,7の中空部内に挿
入し、撚線間に空隙が残らないようにカシメ等の方法で
それぞれ取付ける。
At the end of the twisted wire 2, a connecting block 6,
When inserting 7, the ends 2a, 2b of the twisted wire 2 are narrowed down so that the radial dimension thereof is smaller than that of the twisted wire 2 in the conduit 3 and the wire is inserted in the hollow portion of the connecting blocks 6, 7. Then, attach each by caulking so that no voids remain between the twisted wires.
【0017】この段階では、撚線2および接続用ブロッ
ク6,7は熱処理以前なので、金属の延性を有してお
り、上記カシメ作業が性能に悪影響を及ぼすことはな
い。このように2本の撚線2の端部に接続用ブロック
6,7を取付けた後、熱処理を実施し、しかる後接続用
ブロック6の中空部内に接続用ブロック7の突出部7a
を挿入してブロック同士の位置合せを行い、その接合面
にハンダを流して接続する。
At this stage, since the stranded wire 2 and the connecting blocks 6 and 7 have not yet been heat-treated, they have the ductility of the metal, and the caulking work does not adversely affect the performance. After attaching the connecting blocks 6 and 7 to the ends of the two twisted wires 2 in this manner, heat treatment is performed, and thereafter, the protruding portion 7a of the connecting block 7 is placed in the hollow portion of the connecting block 6.
Insert and align the blocks to each other, and then solder the joint surface to connect them.
【0018】このような超電導線の接続方法とすれば、
Nb3 Snの熱処理前に撚線2の接続端部にNb3 Sn
材からなる接続用ブロック6,7を撚線間に空隙が残ら
ないようにカシメ等の方法で取付け、熱処理後は接続用
ブロック6の中空部内に、接続用ブロック7の突出部7
aを挿入して2本の撚線2の位置合せをした後、その接
合面をハンダ付けして接続するようにしたので、熱処理
後のNb3 Snの脆さによる接続作業の制約があっても
簡単に超電導線を接続することができる。従って、接続
が向上すると同時に、性能に関する信頼性が向上する。
According to such a superconducting wire connecting method,
Before heat-treating Nb 3 Sn, connect Nb 3 Sn to the connection end of stranded wire 2.
The connecting blocks 6 and 7 made of material are attached by a method such as caulking so that no voids remain between the twisted wires, and after heat treatment, the protruding portions 7 of the connecting block 7 are placed in the hollow portions of the connecting block 6.
After inserting a and aligning the two twisted wires 2, the joining surface was soldered for connection, so there is a restriction on the connection work due to the brittleness of Nb 3 Sn after heat treatment. Can also easily connect superconducting wires. Therefore, the connection is improved, and at the same time, the reliability regarding the performance is improved.
【0019】図2は本発明の第2の実施例を示す超電導
線の接続構造を示すもので、図1と同一部分には同一符
号を付してその説明を省略し、ここでは異なる点につい
て述べる。
FIG. 2 shows a superconducting wire connection structure according to a second embodiment of the present invention. The same parts as those in FIG. 1 are designated by the same reference numerals and their explanations are omitted. Describe.
【0020】第2の実施例では、図2に示すように一方
の撚線2の端部2aを円錐状に形成すると共に、他方の
撚線2の端部2bに円錐状の凹部を形成し、また撚線2
の端部2a,2bに取付けられるNb3 Sn材からなる
一対の接続用ブロック8として、一方の撚線2の端部2
aに形成された円錐状の凸部が挿入される凹部と他方の
撚線2の端部2bの凹部に挿入される凸部を有する形状
にそれぞれ形成し、撚線2の端部2aを一方の接続用ブ
ロック8の凹部に、撚線2の端部2bの凹部にもう一方
の接続用ブロック8の凸部をそれぞれ挿入してカシメ等
により取付けるようにしたもので、熱処理後の接続作業
は第1の実施例と同様である。
In the second embodiment, as shown in FIG. 2, one end 2a of one stranded wire 2 is formed in a conical shape, and the other end 2b of the other stranded wire 2 is formed in a conical recess. , Stranded wire 2
One end 2 of one stranded wire 2 is used as a pair of connecting blocks 8 made of Nb 3 Sn material attached to the ends 2a, 2b of the
Each of the end portions 2a of the twisted wire 2 is formed into a shape having a concave portion into which the conical convex portion formed in a is inserted and a convex portion to be inserted into the concave portion of the end portion 2b of the other twisted wire 2. The convex portion of the other connecting block 8 is inserted into the concave portion of the connecting block 8 in the concave portion of the end portion 2b of the stranded wire 2 and attached by caulking. It is similar to the first embodiment.
【0021】このような超電導線の接続方法において
は、第1の実施例と同様の作用効果が得られる他、撚線
2と接続用ブロック8との接触面積を大きくすることが
できるので、接続部4の電気抵抗を小さくすることがで
きると共に、外径寸法を小さくすることができる。
In such a superconducting wire connecting method, the same operation and effect as in the first embodiment can be obtained, and the contact area between the twisted wire 2 and the connecting block 8 can be increased, so that the connection can be improved. The electrical resistance of the portion 4 can be reduced and the outer diameter dimension can be reduced.
【0022】図3は本発明の第3の実施例を示す超電導
線の接続構造を示すもので、図1と同一部分には同一符
号を付してその説明を省略し、ここでは異なる点につい
て述べる。
FIG. 3 shows a superconducting wire connection structure according to a third embodiment of the present invention. The same parts as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. Describe.
【0023】第3の実施例では、図3に示すように2本
の撚線2の接続端部2a,2bを押圧し、その一方の接
続端部2aに円形穴を形成すると共に、他方の接続端部
2bに円形穴に挿入される円柱状の突出部を形成して接
続用ブロックとしての機能を持たせたもので、熱処理後
の接続作業は第1の実施例と同様である。
In the third embodiment, as shown in FIG. 3, the connecting end portions 2a and 2b of the two twisted wires 2 are pressed to form a circular hole in one connecting end portion 2a and the other connecting end portion 2a is pressed. The connection end portion 2b is formed with a columnar protruding portion to be inserted into a circular hole so as to have a function as a connection block, and the connection work after the heat treatment is the same as that of the first embodiment.
【0024】このような超電導線の接続方法において
は、第1の実施例と同様の作用効果が得られる他、接続
用ブロックを使用していないので、接続部4における電
気抵抗を低減させることができる。
In such a superconducting wire connecting method, the same effect as that of the first embodiment can be obtained, and since the connecting block is not used, the electric resistance in the connecting portion 4 can be reduced. it can.
【0025】図4は本発明の第4の実施例を示す超電導
線の接続構造を示すもので、図1と同一部分には同一符
号を付してその説明を省略し、ここでは異なる点につい
て述べる。
FIG. 4 shows a superconducting wire connection structure according to a fourth embodiment of the present invention. The same parts as those in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted. Describe.
【0026】第4の実施例では、図4に示すように2本
の撚線2の接続端部2a,2bを押圧し、その一方の接
続端部2aに円錐形状の凸部を形成すると共に、他方の
接続端部2bにこの凸部が挿入される円錐形状の凹部を
形成して接続用ブロックとしての機能を持たせたもの
で、熱処理後の接続作業は第1の実施例と同様である。
In the fourth embodiment, as shown in FIG. 4, the connecting ends 2a and 2b of the two twisted wires 2 are pressed to form a conical projection on one of the connecting ends 2a. A conical concave portion into which this convex portion is inserted is formed in the other connecting end portion 2b to have a function as a connecting block, and the connecting work after the heat treatment is the same as that of the first embodiment. is there.
【0027】このような超電導線の接続方法において
も、第1の実施例と同様の作用効果が得られる他、接続
用ブロックを使用していないので、接続部4における電
気抵抗0低減することができる。
Even in such a superconducting wire connecting method, the same effects as those of the first embodiment can be obtained, and since no connecting block is used, the electrical resistance at the connecting portion 4 can be reduced to zero. it can.
【0028】図5は本発明の第5の実施例を示す超電導
線の接続構造を示すもので、図1と同一部分には同一符
号を付してその説明を省略し、ここでは異なる点につい
て述べる。
FIG. 5 shows a superconducting wire connection structure according to a fifth embodiment of the present invention. The same parts as those in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted. Describe.
【0029】第5の実施例では、図5に示すように2本
の撚線2の接続端部2a,2bを押圧して偏平形状に成
形したもので、加熱処理後にこれら接続端部2a,2b
の偏平部分を重合せてハンダ付けにより接続するように
したものである。
In the fifth embodiment, as shown in FIG. 5, the connecting ends 2a, 2b of the two twisted wires 2 are pressed to form a flat shape, and after the heat treatment, these connecting ends 2a, 2b are pressed. 2b
The flat parts of the above are polymerized and connected by soldering.
【0030】このような超電導線の接続方法において
も、第1の実施例と同様の作用効果が得られる他、接続
部4の接触面積を大きくとれるので、電気抵抗の低減化
を図ることができると同時に、一方向の寸法を小さくで
きるので、形状が多少大形になっても偏平な空間に接続
部4を収めなければならないような場合に有効である。
Even in such a superconducting wire connecting method, the same effect as that of the first embodiment can be obtained, and since the contact area of the connecting portion 4 can be increased, the electric resistance can be reduced. At the same time, since the dimension in one direction can be reduced, it is effective in the case where the connection portion 4 has to be accommodated in a flat space even if the shape becomes slightly large.
【0031】[0031]
【発明の効果】以上述べたように本発明によれば、作業
性が良く、性能に関する信頼性が高く、しかも接続部の
形状がコンパクトにしてNb3 Snからなる超電導撚線
同士を簡単に接続することができる超電導線の接続方法
を提供できる。
As described above, according to the present invention, the workability is high, the reliability regarding the performance is high, the shape of the connecting portion is compact, and the superconducting stranded wires made of Nb 3 Sn are easily connected to each other. It is possible to provide a superconducting wire connection method that can be performed.
【図面の簡単な説明】[Brief description of drawings]
【図1】本発明による超電導線の接続方法を説明するた
めの第1の実施例を示す接続部の構造図。
FIG. 1 is a structural diagram of a connecting portion showing a first embodiment for explaining a method of connecting a superconducting wire according to the present invention.
【図2】本発明の第2の実施例を示す超電導線の接続部
の構造図。
FIG. 2 is a structural diagram of a connecting portion of a superconducting wire showing a second embodiment of the present invention.
【図3】本発明の第3の実施例を示す超電導線の接続部
の構造図。
FIG. 3 is a structural diagram of a connecting portion of a superconducting wire showing a third embodiment of the present invention.
【図4】本発明の第4の実施例を示す超電導線の接続部
の構造図。
FIG. 4 is a structural diagram of a connecting portion of a superconducting wire showing a fourth embodiment of the present invention.
【図5】本発明の第5の実施例を示す超電導線の接続部
の構造図。
FIG. 5 is a structural diagram of a connecting portion of a superconducting wire showing a fifth embodiment of the present invention.
【図6】従来の超電導線の接続方法を説明するための接
続部の構造図。
FIG. 6 is a structural diagram of a connecting portion for explaining a conventional superconducting wire connecting method.
【符号の説明】[Explanation of symbols]
1…Nb3 Snからなる超電導素線、2…撚線、3…コ
ンジット、4…接続部、6,7,8…接続用ブロック。
1 ... Nb 3 Sn superconducting element wire, 2 ... Stranded wire, 3 ... Conduit, 4 ... Connection part, 6, 7, 8 ... Connection block.

Claims (3)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 熱処理前のNb3 Snからなる多数本の
    超電導素線を撚り合わせた少なくとも2本のバンドル形
    超電導線の端部にNb3 Snからなる嵌め合い構造の接
    続用ブロックを取付けて撚線間の空隙を排除すべく撚線
    と接続用ブロックを圧着してから熱処理し、その後接続
    用ブロック同士をハンダ付けして超電導線の端部同士を
    接続することを特徴とする超電導線の接続方法。
    1. A connection block having a fitting structure made of Nb 3 Sn is attached to an end of at least two bundle type superconducting wires formed by twisting a plurality of superconducting element wires made of Nb 3 Sn before heat treatment. In order to eliminate the voids between the twisted wires, the twisted wires and the connecting blocks are crimped and then heat treated, and then the connecting blocks are soldered together to connect the ends of the superconducting wires. How to connect.
  2. 【請求項2】 熱処理前のNb3 Snからなる多数本の
    超電導素線を撚り合わせたバンドル形超電導線の端部を
    圧着して嵌め合せ部を形成してから熱処理し、その後嵌
    め合せ部をハンダ付けして超電導線の端部同士を接続す
    ることを特徴とする超電導線の接続方法。
    2. A bundle-type superconducting wire obtained by twisting a plurality of Nb 3 Sn superconducting wires before heat treatment is crimped to form a fitting portion, heat-treated, and then the fitting portion is formed. A method of connecting superconducting wires, characterized in that the ends of the superconducting wires are connected by soldering.
  3. 【請求項3】 熱処理前のNb3 Snからなる多数本の
    超電導素線を撚り合わせたバンドル形超電導線の端部を
    偏平状に圧縮成形してから熱処理し、その後偏平部を重
    合せてその接合面をハンダ付けして超電導線の端部同士
    を接続することを特徴とする超電導線の接続方法。
    3. An end portion of a bundle type superconducting wire obtained by twisting a plurality of Nb 3 Sn superconducting element wires before heat treatment is compression-molded into a flat shape, then heat-treated, and then the flat portion is polymerized to form A method for connecting superconducting wires, characterized in that ends of the superconducting wires are connected to each other by soldering joint surfaces.
JP15010894A 1994-06-30 1994-06-30 Superconducting wire connecting method Pending JPH0817487A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15010894A JPH0817487A (en) 1994-06-30 1994-06-30 Superconducting wire connecting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15010894A JPH0817487A (en) 1994-06-30 1994-06-30 Superconducting wire connecting method

Publications (1)

Publication Number Publication Date
JPH0817487A true JPH0817487A (en) 1996-01-19

Family

ID=15489675

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15010894A Pending JPH0817487A (en) 1994-06-30 1994-06-30 Superconducting wire connecting method

Country Status (1)

Country Link
JP (1) JPH0817487A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010198978A (en) * 2009-02-26 2010-09-09 Hitachi Cable Ltd Conductor connecting structure
WO2016167107A1 (en) * 2015-04-17 2016-10-20 住友電装株式会社 Single-core wire and wire harness

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010198978A (en) * 2009-02-26 2010-09-09 Hitachi Cable Ltd Conductor connecting structure
WO2016167107A1 (en) * 2015-04-17 2016-10-20 住友電装株式会社 Single-core wire and wire harness

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