JPH02297808A

JPH02297808A - Superconductor

Info

Publication number: JPH02297808A
Application number: JP1117414A
Authority: JP
Inventors: Tsuneaki Minato; 恒明湊
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 1989-05-12
Filing date: 1989-05-12
Publication date: 1990-12-10

Abstract

PURPOSE:To secure a single superconductor wire firmly by applying adhesive to the single superconductor wire and gluing single wires to each other. CONSTITUTION:A liquid state resin 9 is coated on the surface of a superconductor sliver 1a reeled out from a feed drum 11 by passing the sliver through a container holding the liquid state resin 9. The sliver is then passed through a heating chamber 10 to semi-solidify the liquid state resin 9 on the surface of the superconductor sliver 1a. Superconductor slivers 1b are twisted, put together with a covering 3 to form a superconductor, and heated to solidify the adhesive 13. As the superconductor 2 is constituted in this way, the superconductor slivers 1 are joined firmly together with the adhesive 13, the slivers do not move when they are used in a superconductive magnet and work in a stabilized manner.

Description

【発明の詳細な説明】［産業上の利用分野］この発明は、超電導導体に関し、さらに詳しくいうと、
超電導電磁石の導体として使用する強制冷却形の超電導
導体に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to superconducting conductors, and more specifically,
This invention relates to a forced cooling type superconducting conductor used as a conductor of a superconducting electromagnet.

［従来の技術］第４図は、例えば日本電子力研究所発行「核融合次期装
置設計ＪＪＡＥＲＩ−に、８８−１１０．５９ページ（
１９８８，６月）に示された従来の超電導導体を示し、
図に゛おいて（１）は超電導素線、（２）は素線（１）
および被覆（コンジット）（３）よりなる超電導導体で
ある。[Prior art] Figure 4 is shown, for example, in "Nuclear fusion device design JJAERI-" published by Japan Electronics Research Institute, page 88-110.59 (
1988, June) shows a conventional superconducting conductor,
In the figure, (1) is a superconducting wire, and (2) is a wire (1).
and a coating (conduit) (3).

素線（１）は、多数本（この場合は５６７本）撚り合わ
されている。A large number of wires (1) (567 wires in this case) are twisted together.

以上の構成により、超電導導体（２）中を冷却したヘリ
ウムを強制的に流通させて冷却し、超電導素線（１）を
超電導状態とする。超電導状態となった導体は電気抵抗
零で大きな電流が流せるので、導体をコイルに巻回すれ
ば、５からＩＯＴ程度の大きな磁界を得ることができる
。なお被覆（３）は冷却したヘリウムの容器となってい
る。With the above configuration, cooled helium is forced to flow through the superconducting conductor (2) to cool it and bring the superconducting wire (1) into a superconducting state. A conductor in a superconducting state has zero electrical resistance and can carry a large current, so by winding the conductor into a coil, it is possible to obtain a magnetic field as large as 5 to IOT. The coating (3) is a container for cooled helium.

［発明が解決しようとする課題］従来の超電導導体は以上のように構成されているので、
超電導素線は撚り合わされることによってのみ固定され
ており、通電中に電磁力によって素線が動き易く、動き
による発熱によって素線温度が上昇し、超電導破壊を発
生しやすい。[Problem to be solved by the invention] Since the conventional superconducting conductor is configured as described above,
Superconducting strands are fixed only by being twisted together, and the strands tend to move due to electromagnetic force during energization, and the temperature of the strands rises due to heat generated by the movement, making it easy to cause superconductor breakdown.

この発明は上記のような問題点を解消するためになされ
たもので、超電導素線を強く固定できる超電導導体を得
ることを目的とする。This invention was made to solve the above-mentioned problems, and an object thereof is to obtain a superconducting conductor that can firmly fix superconducting wires.

［課題を解決するための手段］この発明に係る超電導導体は、超電導素線に接着剤を塗
布し、素線どうしを接着してなる。[Means for Solving the Problems] A superconducting conductor according to the present invention is formed by applying an adhesive to superconducting strands and bonding the strands together.

［作用］この発明においては、超電導素線に塗布した接着剤によ
り、素線が互いに接着され、通電しても動きによる発熱
が少なく、安定に動作する。[Function] In the present invention, the superconducting wires are bonded to each other by the adhesive applied to the superconducting wires, and even when energized, there is little heat generation due to movement, and the superconducting wires operate stably.

［実施例］以下、第１図〜第３図により、この発明の一実施例を説
明する。まず、第３図により製造工程の要部について説
明する。第３図において、ＮｂＴｉなどでなる超電導素
線（１ａ）を供給ドラム（１１）から送り出し、液状樹
脂（９）を蓄えた容器を通して、超電導素線（１ａ）の
表面に液状樹脂（９）をコーティングする。続けて、加
熱槽（１０）を通して、超電導素線（１ａ）表面の液状
樹脂（９）を半硬化させ、表面に−厚さが３〜５０μ薗
の半硬化接着層を有する超電導素線（１ｂ）を形成した
後、巻取ドラムに巻取る。[Example] Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 3. First, the main parts of the manufacturing process will be explained with reference to FIG. In Figure 3, a superconducting wire (1a) made of NbTi or the like is sent out from a supply drum (11), passed through a container storing liquid resin (9), and liquid resin (9) is applied to the surface of the superconducting wire (1a). Coat. Subsequently, the liquid resin (9) on the surface of the superconducting wire (1a) is semi-cured by passing it through a heating tank (10), and the superconducting wire (1b) having a semi-cured adhesive layer with a thickness of 3 to 50 μm is formed on the surface of the superconducting wire (1b). ) is then wound onto a winding drum.

超電導素線（１ｂ）は、第２図に示すように、超電導フ
ィラメント（４）が安定化材（５）に囲まれ、さらにこ
れを囲む電気絶縁材（６）の外表面に半硬化接着層（７
）が形成されたものとなる。As shown in Fig. 2, the superconducting wire (1b) has a superconducting filament (4) surrounded by a stabilizing material (5), and a semi-cured adhesive layer on the outer surface of an electrically insulating material (6) surrounding this. (7
) is formed.

その後、超電導素線（１ｂ）を撚線し、第４図のものと
同様に被覆（３）と組み合わせて、超電導導体（２）を
製作する。製作後、コイル製作の適当な過程で導体を加
熱し一１接着剤を硬化させる。Thereafter, the superconducting wires (1b) are twisted and combined with the coating (3) in the same manner as in FIG. 4 to produce a superconducting conductor (2). After fabrication, the conductor is heated and the adhesive is cured during an appropriate coil fabrication process.

硬化後の超電導導体（２）は第１図のようになり、超電
導素線（１）は接着層（１３）により互いに接着されて
いる。The superconducting conductor (2) after curing becomes as shown in FIG. 1, and the superconducting wires (1) are bonded to each other by an adhesive layer (13).

第１図に示すように超電導導体（２）が構成されるので
、超電導素線（１）は接着層（１３）によって互いに強
固に結合され、超電導電磁石を形成して通電しても動き
がなく、安定に動作する。Since the superconducting conductor (2) is constructed as shown in Figure 1, the superconducting wires (1) are firmly bonded to each other by the adhesive layer (13), forming a superconducting electromagnet that does not move even when energized. , works stably.

［発明の効果］以上のように、この発明によれば、超電導素線を接着剤
によって互いに固定することによって、高安定性の超電
導導体を得ることができる。[Effects of the Invention] As described above, according to the present invention, a highly stable superconducting conductor can be obtained by fixing superconducting strands to each other with an adhesive.

[Brief explanation of the drawing]

第１図〜第３図はこの発明の一実施例を示し、第１図（
ａ）は断面図、同図（ｂ）は一部拡大断面図、第２図は
超電導素線の断面図、第３図は製造工程を説明するため
の側面図である。第４図は従来の超電導導体の断面図である。（１）・・超電導素線、（２）・・超電導導体、（３）
・・被覆（コンジット）、（１３）・・接着層。なお、各図中、同一符号は同−又は相当部分を示す。代　　理　　人　　　曾　　我　　道　　照ｆ４１　図（ａ）（Ｌり電Ｓ鼻轢２　赳重導Ｓ林３、ネ安Ｓ（コ、シ５−７ト）１．１．ｆｌＡ層（ｂ）Ａ部第２Ｅ第４図 ↓ ↓ ↓1 to 3 show an embodiment of the present invention, and FIG. 1 (
FIG. 2A is a cross-sectional view, FIG. 2B is a partially enlarged cross-sectional view, FIG. 2 is a cross-sectional view of a superconducting wire, and FIG. 3 is a side view for explaining the manufacturing process. FIG. 4 is a cross-sectional view of a conventional superconducting conductor. (1)...Superconducting wire, (2)...Superconducting conductor, (3)
... Covering (conduit), (13) ... Adhesive layer. In each figure, the same reference numerals indicate the same or corresponding parts. Agent Person Zeng I Do Teru f41 Figure (a) (L electric power supply S nose 2, 赳 JUDGED S LIN 3, NEAN S (KO, SI 5-7) 1.1.flA layer (b) A section 2E Fig. 4 ↓ ↓ ↓

Claims

[Claims]

A superconducting conductor of a forced cooling type in which the outer periphery of a stranded wire is coated, characterized in that an adhesive is applied to the superconducting strands forming the stranded wire, and the superconducting strands are bonded to each other.