JPS59218707A - Winding method for superconductive coil - Google Patents
Winding method for superconductive coilInfo
- Publication number
- JPS59218707A JPS59218707A JP9325483A JP9325483A JPS59218707A JP S59218707 A JPS59218707 A JP S59218707A JP 9325483 A JP9325483 A JP 9325483A JP 9325483 A JP9325483 A JP 9325483A JP S59218707 A JPS59218707 A JP S59218707A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- teflon
- superconductive wires
- oxide film
- superconductive
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/06—Coils, e.g. winding, insulating, terminating or casing arrangements therefor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は特定の表面処理、例えば熱伝導の良好な酸化
膜を形成させた超電導線の巻線方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of winding a superconducting wire in which a specific surface treatment is performed, such as forming an oxide film with good thermal conductivity.
超電導コイルを製作する場合、導体の絶縁に関しては、
導体表面に、
(1)電気絶縁用エナメルをコーティングする。When manufacturing superconducting coils, regarding conductor insulation,
(1) Coat the conductor surface with electrically insulating enamel.
(2)熱伝導の良好な酸化膜を形成させ、さらにこ予上
を絶縁被覆する。(2) Form an oxide film with good thermal conductivity, and then cover the top with an insulating coating.
方法が採られており、本発明は上記(2)に関するもの
である。The present invention relates to the above method (2).
普通、酸化膜上にはテープ状の電気絶縁物を巻きつけて
電気絶縁するが、酸化膜の膜厚が数μm程度で機械的強
度が非常に弱いので、この電気絶縁物が表面をこすって
酸化膜がはがれる結果、酸化膜の熱伝導性を劣化させる
欠点がある。Normally, a tape-shaped electrical insulating material is wrapped around the oxide film for electrical insulation, but since the oxide film is only a few micrometers thick and has very weak mechanical strength, this electrical insulating material may rub the surface. As a result of the oxide film being peeled off, there is a drawback that the thermal conductivity of the oxide film deteriorates.
そこでこの酸化膜の損傷すなわち熱伝導性の劣化を防止
する方法を研究の結果、本発明は非磁性のステンレス線
の上にテフロンをコーティングした線を用いて超電導線
間に添わせながら巻線して絶縁すれば上記の欠点を防止
できることを知見して得られたものである。As a result of research into ways to prevent damage to the oxide film, that is, deterioration of thermal conductivity, the present invention has developed a method of winding a non-magnetic stainless steel wire with a Teflon coating between the superconducting wires. This was achieved by discovering that the above-mentioned drawbacks could be prevented by insulating the material.
本発明によれば、第1図の超電導コイルの模式断面図に
示す如く超電導線1の電気絶縁として5US304を芯
線としたテフロン被覆線2をターン間に添わせながら巻
線を行い、層間にはスペーサとしで電気絶縁フィルム6
を入れて電気絶縁を行う。この際超電導線の酸化膜は前
記テフロンおよび絶縁フィルムと一部接触するがこのた
めに熱電導性が大きく劣化することはない。前記ステン
レスは勿論非磁性のものを使用する。コイルの冷却の際
の液体ヘリウムは超電導線1とテフロン被覆線2の隙間
から浸入して超電導線を冷却する。According to the present invention, as shown in the schematic cross-sectional view of a superconducting coil in FIG. 1, the superconducting wire 1 is wound with a Teflon-coated wire 2 having a core wire of 5US304 as electrical insulation between the turns. Electrical insulation film 6 as a spacer
for electrical insulation. At this time, the oxide film of the superconducting wire partially contacts the Teflon and insulating film, but this does not significantly deteriorate the thermal conductivity. Of course, the stainless steel used is non-magnetic. Liquid helium used to cool the coil enters through the gap between the superconducting wire 1 and the Teflon-coated wire 2 to cool the superconducting wire.
なお、超電導線が平角の場合には、第2図に示す如く超
電導線1の各層間にスペーサ4として短冊状の絶縁物を
入れるようにすると超電導線の酸化膜が大きく劣化する
ことがない。When the superconducting wire is rectangular, the oxide film of the superconducting wire will not be significantly degraded by inserting a strip of insulating material as a spacer 4 between each layer of the superconducting wire 1 as shown in FIG.
このス投−サ材としてはマイラー、FRPおよびテフロ
ン等が用いられる。Mylar, FRP, Teflon, and the like are used as the spacer material.
次に本発明の方法を実施例により説明する。Next, the method of the present invention will be explained using examples.
実施例
実験に使用した超電導コイルおよび線材の諸元を第1表
に示す。Table 1 shows the specifications of the superconducting coils and wires used in the experiments.
テフロン被覆線には線径0.75mmφ(芯のステンレ
ス線径は0.5mmφ)のものを用い超電導線に添わせ
ながら巻線した。層間には0.1 mm厚、巾15mm
、長さ95mmのFRP板を15mm(1)隙間をあげ
て挿入した。第6図には本コイルの励減磁電流モードを
示すが本コイルの使用電源からはインダクタンス分の電
圧の他に第4図に示す雑音(±150■)がコイルに重
畳された。したがってピーク電圧は400Vに達してい
る。The Teflon-coated wire had a wire diameter of 0.75 mm (the diameter of the stainless steel wire at the core was 0.5 mm), and was wound around the superconducting wire. The thickness between the layers is 0.1 mm, and the width is 15 mm.
, an FRP board with a length of 95 mm was inserted with a gap of 15 mm (1). FIG. 6 shows the excitation/demagnetization current mode of this coil, and from the power source used for this coil, in addition to the voltage corresponding to the inductance, the noise (±150 square meters) shown in FIG. 4 was superimposed on the coil. Therefore, the peak voltage has reached 400V.
この電流モードで通電したが特に異常がな(、良好なコ
イル特性であることが判明した。When electricity was applied in this current mode, there were no particular abnormalities (it was found that the coil characteristics were good).
第1表 線材およびコイル諸元
以上述べた如く本発明の方法によれば、超電導線の酸化
膜表面に対する摩擦が少ないので酸化膜が損傷を受ける
ことがなく、酸化膜を熱伝導膜として有効に働かせるこ
とができる。Table 1 Wire and coil specifications As described above, according to the method of the present invention, there is little friction against the surface of the oxide film of the superconducting wire, so the oxide film is not damaged and the oxide film can be effectively used as a heat conductive film. can be made to work.
ステンレス入りテフロン線の線径によってターン間隔が
決まるが通常この間隔は問題となる耐圧を確保するのに
充分であるからターン間に充分な電気絶縁が確保される
とともに特に)ξルスマグネットの様な大きな耐圧が必
要とされる場合に有効である等、本発明は超電導マグネ
ットの巻線方法において極めて有用である。The turn spacing is determined by the wire diameter of the stainless-steel-filled Teflon wire, but this spacing is usually sufficient to ensure the problem withstand voltage, so sufficient electrical insulation is ensured between the turns, and in particular The present invention is extremely useful in a method of winding a superconducting magnet, such as being effective when a large withstand voltage is required.
巻線方法を示す断面図を示すものである。
第6図は実施例のコイルの励減磁電流モードを第4図は
電源からの雑音波形を示す図である。
1:超電′導線
2ニステンレス入りテフロン絶縁被覆線ろ:絶縁フィル
ム
4;スペーサ
特許出願人 住友電気工業株式会社
第1図
A
第4図
rnS3 is a cross-sectional view showing a winding method. FIG. 6 shows the excitation/demagnetization current mode of the coil of the embodiment, and FIG. 4 shows the noise waveform from the power supply. 1: Superconducting conductor wire 2 Stainless steel Teflon insulated wire Ro: Insulating film 4; Spacer Patent applicant Sumitomo Electric Industries, Ltd. Fig. 1A Fig. 4 rnS
Claims (2)
導コイルを巻線する場合、超電導線の電気絶縁として非
磁性のステンレス線上にテフロンを被覆した線を用い、
超電導線に添わせながら巻線することを特徴とする超電
導コイルの巻線方法。(1) When winding a superconducting coil using a superconducting wire that has undergone a specific surface treatment, use a non-magnetic stainless steel wire coated with Teflon as electrical insulation for the superconducting wire.
A method of winding a superconducting coil characterized by winding the coil along a superconducting wire.
を該超電導線表面に形成した超電導線を使用する特許請
求の範囲第(1)項に記載の巻線方法。(2) The wire winding method according to claim (1), which uses a superconducting wire in which an oxide film with good thermal conductivity is formed on the surface of the superconducting wire as a specific surface treatment.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9325483A JPS59218707A (en) | 1983-05-26 | 1983-05-26 | Winding method for superconductive coil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9325483A JPS59218707A (en) | 1983-05-26 | 1983-05-26 | Winding method for superconductive coil |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS59218707A true JPS59218707A (en) | 1984-12-10 |
Family
ID=14077359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9325483A Pending JPS59218707A (en) | 1983-05-26 | 1983-05-26 | Winding method for superconductive coil |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59218707A (en) |
-
1983
- 1983-05-26 JP JP9325483A patent/JPS59218707A/en active Pending
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