JP2803685B2 - Superconducting coil and manufacturing method thereof - Google Patents
Superconducting coil and manufacturing method thereofInfo
- Publication number
- JP2803685B2 JP2803685B2 JP2191014A JP19101490A JP2803685B2 JP 2803685 B2 JP2803685 B2 JP 2803685B2 JP 2191014 A JP2191014 A JP 2191014A JP 19101490 A JP19101490 A JP 19101490A JP 2803685 B2 JP2803685 B2 JP 2803685B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- superconducting
- coil
- compound
- conductor
- 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.)
- Expired - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000004020 conductor Substances 0.000 claims description 34
- 150000001875 compounds Chemical class 0.000 claims description 23
- 239000002887 superconductor Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Landscapes
- Insulating Of Coils (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は、超電導コイルとその製造方法に関するも
のである。さらに詳しくは、この発明は、Nb3Sn,Nb3Al
等からなる化合物超電導導体の応力および歪みを低減さ
せることができ、しかも通電時の電磁力による超電導導
体への歪みを確実に低減させることのできる超電導コイ
ルとその製造方法に関するものである。The present invention relates to a superconducting coil and a method for manufacturing the same. More specifically, the present invention relates to Nb 3 Sn, Nb 3 Al
The present invention relates to a superconducting coil capable of reducing the stress and strain of a compound superconducting conductor made of the above, and capable of reliably reducing the strain on the superconducting conductor due to electromagnetic force during energization, and a method of manufacturing the same.
（従来の技術） 従来より、Nb3Sn,Nb3Al等からなる化合物超電導導体
は、NbTi等からなる合金超電導導体に比べ高い臨界温度
および臨界磁界を持つため、超電導コイルとして有用で
あって、たとえば核融合炉、エネルギー貯蔵器等に用い
られる大型超電導コイルへの適用が期待されている。(Prior art) Conventionally, compound superconductors made of Nb 3 Sn, Nb 3 Al, etc. are useful as superconducting coils because they have higher critical temperatures and critical magnetic fields than alloy superconductors made of NbTi, etc. For example, application to a large superconducting coil used for a fusion reactor, an energy storage, and the like is expected.
このようなNb3Sn,Nb3Al等からなる化合物超電導導体
を用いた超電導コイルの一つとして、たとえばプレート
内に設けたらせん状溝部に化合物超電導導体を配設した
構造を有するものがこれまでに知られている。この超電
導コイルでは、超電導導体がプレートと一体化している
ために、コイルに通電した時に発生する電磁力に対して
超電導導体への最大歪みを小さくすることができるとい
う特徴を有している。一般に、化合物超電導導体は、応
力や歪みが加わると、臨界電流値が低下するために、上
記したようなプレート型の超電導コイルは、大きな電磁
力を発生する高磁界で大型のコイルに有効である。Such Nb 3 Sn, as one compound superconductor superconducting coil using a consisting of Nb 3 Al and the like, ever to have a structure which is disposed a compound superconductor for example a spiral groove provided in the plate Is known to. This superconducting coil has a feature that, since the superconducting conductor is integrated with the plate, the maximum distortion to the superconducting conductor with respect to the electromagnetic force generated when the coil is energized can be reduced. In general, when a compound superconducting conductor is subjected to stress or strain, the critical current value decreases, so that the plate-type superconducting coil as described above is effective for a large coil with a high magnetic field that generates a large electromagnetic force. .
（発明が解決しようとする課題） しかしながら、従来のプレート型超電導コイルは、超
電導化合物生成のための熱処理を施した超電導導体をプ
レート内のらせん状溝部に巻くか、あるいは熱処理前に
導体をプレート内のらせん溝部に巻き、プレートととも
に導体に超電導導体生成のための熱処理を行って製造し
ているため、前者の場合には、巻線により超電導導体に
曲歪みが加わり超電導導体の臨界電流値が減少するとい
う問題があった。一方、後者の場合には、Nb3Sn,Nb3Al
等の化合物超電導体の生成温度が600℃以上ために、熱
処理後にプレートの機械的特性が劣化し、コイル通電時
の電磁力に耐えることができないという問題があった。(Problems to be Solved by the Invention) However, in the conventional plate-type superconducting coil, a superconducting conductor that has been subjected to a heat treatment for producing a superconducting compound is wound around a spiral groove in the plate, or the conductor is placed inside the plate before the heat treatment. In the former case, the superconducting conductor is subjected to bending distortion and the critical current value of the superconducting conductor decreases because the winding is wound around the spiral groove and the conductor is heat-treated together with the plate to produce the superconducting conductor. There was a problem of doing. On the other hand, in the latter case, Nb 3 Sn, Nb 3 Al
And the like, the formation temperature of the compound superconductor is 600 ° C. or higher, so that the mechanical properties of the plate are degraded after the heat treatment, and there is a problem that it cannot withstand the electromagnetic force when the coil is energized.
この発明は、以上の通りの事情に鑑みてなされたもの
であり、従来の超電導コイルの欠点を解消し、Nb3Sn,Nb
3Al等からなる化合物超電導導体の応力および歪みを低
減させることができ、しかも通電時の電磁力による超電
導導体への歪みを確実に低減させることのできる、改善
された超電導コイルとその製造方法を提供することを目
的としている。The present invention has been made in view of the above circumstances, and solves the drawbacks of the conventional superconducting coil, and provides Nb 3 Sn, Nb
(3) An improved superconducting coil and a method for manufacturing the same, which can reduce stress and strain of a compound superconducting conductor made of Al or the like, and can surely reduce distortion to the superconducting conductor due to electromagnetic force during energization. It is intended to provide.
（課題を解決するための手段） この発明は、上記の課題を解決するものとして、化合
物超電導導体をプレート内のらせん状溝部に配設してな
る超電導コイルにおいて、化合物超電導導体を配設する
プレートと同一のらせん状溝部を有する別体のプレート
内に配置して熱処理した後に、この超電導導体をコイル
プレート内のらせん状溝部に移行配設してなることを特
徴とする超電導コイルを提供する。(Means for Solving the Problems) According to the present invention, there is provided a superconducting coil in which a compound superconducting conductor is disposed in a spiral groove in a plate, in which a compound superconducting conductor is disposed. A superconducting coil is provided in which a superconducting conductor is transferred to a spiral groove in a coil plate after being placed in a separate plate having the same spiral groove and heat-treated.
またこの発明は、化合物超電導導体を配設するプレー
トと同一のらせん状溝部を有する別体のプレート内に配
置して熱処理した後に、この超電導導体をプレート内の
らせん状溝部に移行配設することを特徴とする超電導コ
イルの製造方法をも提供するものである。Further, according to the present invention, after disposing in a separate plate having the same helical groove as the plate on which the compound superconducting conductor is disposed and heat-treating, the superconducting conductor is transferred to the helical groove in the plate. The present invention also provides a method for manufacturing a superconducting coil characterized by the following.
（作 用） この発明の超電導コイルとその製造方法においては、
化合物超電導導体を配設するプレートと同一のらせん状
溝部を有する別体のプレート内に配置して熱処理した後
に、この超電導導体を取出してコイルプレート内のらせ
ん状溝部に移行配設するため、従来法のように巻線によ
る曲歪みを防止することができ、またプレートが熱処理
されないことから、プレート本来の機械的特性を維持す
ることができる。通電時にコイルに発生する電磁力によ
る超電導導体への歪みを確実に低減させることができ
る。(Operation) In the superconducting coil and the method of manufacturing the same according to the present invention,
After placing the compound superconducting conductor in a separate plate having the same spiral groove as the plate on which the compound superconducting conductor is placed and performing heat treatment, this superconducting conductor is taken out and transferred to the spiral groove in the coil plate. As in the method, bending distortion due to winding can be prevented, and since the plate is not heat-treated, the original mechanical characteristics of the plate can be maintained. Distortion to the superconducting conductor due to electromagnetic force generated in the coil when energized can be reliably reduced.
（実施例） 以下、図面に沿って実施例を示し、この発明の超電導
コイルとその製造方法についてさらに詳しく説明する。(Example) Hereinafter, an example is shown along with a drawing, and the superconducting coil of this invention and its manufacturing method are explained in more detail.
第１図および第２図は、各々、この発明の超電導コイ
ルの製造方法の一工程を示した平面図とそのＡ−Ａの断
面図である。1 and 2 are a plan view and a cross-sectional view taken along the line AA, respectively, showing one step of a method for manufacturing a superconducting coil according to the present invention.
この第１図および第２図に示したように、この発明の
超電導コイルの製造方法においては、まず、熱処理を施
す前の導体（１）を超電導コイルに使用するプレートと
同一のらせん状形状を有する溝部を形成した仮のプレー
ト（２）のらせん状溝部に配置する。As shown in FIGS. 1 and 2, in the method of manufacturing a superconducting coil according to the present invention, first, the conductor (1) before heat treatment is formed into the same spiral shape as the plate used for the superconducting coil. It is arranged in the spiral groove of the temporary plate (2) having the groove formed therein.
次いで、このままの状態で熱処理を行い、導体（１）
をNb3Sn,Nb3Al等の化合物超電導体とする。Next, heat treatment is performed in this state, and the conductor (1)
Is a compound superconductor such as Nb 3 Sn, Nb 3 Al.
この後に、第３図および第４図に示したように、熱処
理後の化合物超電導導体（３）をコイルプレート（４）
のらせん状溝部に絶縁物（５）を介して配設する。この
ようにして、超電導コイルを製造する。Thereafter, as shown in FIGS. 3 and 4, the heat-treated compound superconductor (3) is placed on the coil plate (4).
It is disposed in the spiral groove portion via an insulator (5). Thus, a superconducting coil is manufactured.
このコイル配設構造とその製造法によって、従来のプ
レートらせん状溝部への配設にともなう巻線による曲歪
みを防止することができ、またプレートが熱処理されな
いことから、プレート本来の機械的特性を維持すること
ができる。このため、通電時にコイルに発生する電磁力
による超電導導体への歪みを確実に低減させることがで
きる。By this coil arrangement structure and its manufacturing method, it is possible to prevent the bending distortion due to the winding caused by the conventional arrangement in the plate spiral groove, and since the plate is not heat-treated, the original mechanical characteristics of the plate are reduced. Can be maintained. For this reason, distortion to the superconducting conductor due to the electromagnetic force generated in the coil when energized can be reliably reduced.
もちろんこの発明は、以上の例によって限定されるも
のではない。プレートの形状、大きさおよび材質、化合
物超電導体の種類およびその熱処理条件、絶縁物の種類
等の細部については様々な態様が可能であるということ
はいうまでもない。Of course, the present invention is not limited by the above examples. It goes without saying that various aspects are possible for details such as the shape, size and material of the plate, the type of compound superconductor and the heat treatment conditions thereof, and the type of insulator.
（発明の効果） 以上詳しく説明した通り、この発明によって、核融合
炉、エネルギー貯蔵器等に使用することのできる大型の
超電導コイルが提供される。発生する電磁力に充分対応
することができ、高性能でコンパクトな超電導コイルが
実現される。(Effects of the Invention) As described above in detail, the present invention provides a large-sized superconducting coil that can be used for a fusion reactor, an energy storage device, and the like. A high-performance and compact superconducting coil that can sufficiently cope with the generated electromagnetic force is realized.
第１図および第２図は、各々、この発明の超電導コイル
の製造方法における熱処理工程を示した平面図とそのＡ
−Ａ断面図である。 第３図および第４図は、各々、この発明の超電導コイル
の製造方法における超電導導体のコイルプレート配設の
工程を示した平面図とそのＡ−Ａ断面図である。 １……導体 ２……仮のプレート ３……化合物超電導導体 ４……コイルプレート ５……絶縁物1 and 2 are a plan view and a plan view, respectively, showing a heat treatment step in the method of manufacturing a superconducting coil of the present invention.
It is -A sectional drawing. FIG. 3 and FIG. 4 are a plan view and a sectional view taken along the line AA, respectively, showing the steps of disposing the coil plate of the superconducting conductor in the method of manufacturing a superconducting coil according to the present invention. DESCRIPTION OF SYMBOLS 1 ... Conductor 2 ... Temporary plate 3 ... Compound superconducting conductor 4 ... Coil plate 5 ... Insulator
Claims (4)
溝部に配設してなる超電導コイルにおいて、化合物超電
導導体を配設するプレートと同一のらせん状溝部を有す
る別体のプレート内に配置して熱処理した後に、この超
電導導体をコイルプレート内のらせん状溝部に移行配設
してなることを特徴とする超電導コイル。1. A superconducting coil having a compound superconducting conductor disposed in a spiral groove in a plate, wherein the superconducting coil is disposed in a separate plate having the same spiral groove as the plate on which the compound superconducting conductor is disposed. A superconducting coil characterized in that the superconducting conductor is transferred to a spiral groove in a coil plate after heat treatment.
なる請求項（１）記載の超電導導体。2. The superconductor according to claim 1, wherein the compound superconductor is made of Nb 3 Sn or Nb 3 Al.
溝部に配設してなる超電導コイルにおいて、化合物超電
導導体を配設するプレートと同一のらせん状溝部を有す
る別体のプレート内に配置して熱処理した後に、この超
電導導体をコイルプレート内のらせん状溝部に移行配設
することを特徴とする超電導コイルの製造方法。3. A superconducting coil having a compound superconducting conductor disposed in a spiral groove in a plate, wherein the superconducting coil is disposed in a separate plate having the same spiral groove as the plate on which the compound superconducting conductor is disposed. A method of manufacturing a superconducting coil, comprising, after heat treatment, disposing the superconducting conductor in a spiral groove in a coil plate.
なる請求項（３）記載の超電導導体の製造方法。4. The method according to claim 3, wherein the compound superconductor is made of Nb 3 Sn or Nb 3 Al.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2191014A JP2803685B2 (en) | 1990-07-18 | 1990-07-18 | Superconducting coil and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2191014A JP2803685B2 (en) | 1990-07-18 | 1990-07-18 | Superconducting coil and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0476904A JPH0476904A (en) | 1992-03-11 |
| JP2803685B2 true JP2803685B2 (en) | 1998-09-24 |
Family
ID=16267445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2191014A Expired - Lifetime JP2803685B2 (en) | 1990-07-18 | 1990-07-18 | Superconducting coil and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2803685B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040038576A (en) * | 2002-10-30 | 2004-05-08 | 석병관 | Capacitor technique apply energy save and super conducting electric cable |
-
1990
- 1990-07-18 JP JP2191014A patent/JP2803685B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0476904A (en) | 1992-03-11 |
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