JP2013143460A - High-temperature superconducting coil and method of manufacturing the same - Google Patents
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000000853 adhesive Substances 0.000 claims abstract description 30
- 230000001070 adhesive effect Effects 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000004830 Super Glue Substances 0.000 claims description 11
- 239000003822 epoxy resin Substances 0.000 claims description 11
- 229920000647 polyepoxide Polymers 0.000 claims description 11
- FGBJXOREULPLGL-UHFFFAOYSA-N ethyl cyanoacrylate Chemical compound CCOC(=O)C(=C)C#N FGBJXOREULPLGL-UHFFFAOYSA-N 0.000 claims description 10
- 229920001721 polyimide Polymers 0.000 claims description 8
- 229920005989 resin Polymers 0.000 abstract description 13
- 239000011347 resin Substances 0.000 abstract description 13
- 238000005470 impregnation Methods 0.000 abstract description 8
- 238000004804 winding Methods 0.000 abstract description 8
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 238000006731 degradation reaction Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 20
- 229910052761 rare earth metal Inorganic materials 0.000 description 5
- 150000002910 rare earth metals Chemical class 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 229920001651 Cyanoacrylate Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- MWCLLHOVUTZFKS-UHFFFAOYSA-N Methyl cyanoacrylate Chemical compound COC(=O)C(=C)C#N MWCLLHOVUTZFKS-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
【課題】 従来の樹脂含浸に代えて、瞬間接着剤を高温超電導コイルに塗布しながら絶縁層を挟むように巻きあげ、又は更に樹脂を含浸することで、熱ひずみによる高温超電導線材の剥離をなくして高温超電導コイルの性能低下を防止することができる、高温超電導コイル及びその製造方法を提供する。
【解決手段】 高温超電導コイルにおいて、瞬間接着剤３を高温超電導線材１に塗布しながらこの高温超電導線材１上に絶縁層を挟むように巻き取られた構造を有する。
【選択図】 図１PROBLEM TO BE SOLVED: To eliminate peeling of a high-temperature superconducting wire due to thermal strain by winding up an insulating layer while applying an instantaneous adhesive to a high-temperature superconducting coil instead of conventional resin impregnation, or further impregnating with a resin. The present invention provides a high-temperature superconducting coil and a method for manufacturing the same, which can prevent performance degradation of the high-temperature superconducting coil.
A high-temperature superconducting coil has a structure in which an instantaneous adhesive 3 is applied to a high-temperature superconducting wire 1 and wound around the high-temperature superconducting wire 1 so as to sandwich an insulating layer.
[Selection] Figure 1
Description
本発明は、高温超電導コイル及びその製造方法に関するものである。 The present invention relates to a high-temperature superconducting coil and a method for manufacturing the same.
例えば、ＲＥ（レアアース）系高温超電導線材は、磁場中における通電特性が優れていることから、高温超電導コイルへの応用が期待されている。
本出願人は、既に、ＲＥ系超電コイル伝導冷却方法及びその装置の提案を行っている（下記特許文献１参照）。
For example, RE (rare earth) high-temperature superconducting wires are expected to be applied to high-temperature superconducting coils because of their excellent current-carrying characteristics in a magnetic field.
The present applicant has already proposed a RE-based superconducting coil conduction cooling method and apparatus (see Patent Document 1 below).
機械的な強度が必要な高温超電導コイルには樹脂含浸が行われている。しかしながら、ＲＥ系高温超電導線材は、引っ張り強度は高いものの、超電導層積層方向（剥離方向）には強度が低く、剥離による超電導コイルの性能低下が問題となる（上記特許文献１参照）。
図６は従来の樹脂含浸高温超電導コイルの部分断面図であり、図７は図６の樹脂含浸高温超電導コイルの熱収縮に伴う劣化を示す模式図である。
A high temperature superconducting coil that requires mechanical strength is impregnated with a resin. However, although the RE-based high-temperature superconducting wire has high tensile strength, the strength is low in the superconducting layer stacking direction (peeling direction), and the performance degradation of the superconducting coil due to peeling becomes a problem (see Patent Document 1).
FIG. 6 is a partial cross-sectional view of a conventional resin-impregnated high-temperature superconducting coil, and FIG. 7 is a schematic diagram showing deterioration due to thermal shrinkage of the resin-impregnated high-temperature superconducting coil of FIG.
図６に示すように、機械的強度を持たせるために、超電導線材１０１の間にエポキシ樹脂１０２の含浸が行われているが、エポキシ樹脂１０２は超電導線材１０１と比較して熱収縮率が大きいため、図７に示すように、超電導線材１０１間に収縮力が働くと、剥離１０３を生じる。
すなわち、樹脂材料は超電導線材に対して熱収縮率が大きく、エポキシ樹脂は強度が高いため、超電導線材間に収縮力が働くと、樹脂自体ではなく高温超電導線材の剥離が発生し、超電導コイルの性能低下を引き起こしてしまう。
As shown in FIG. 6, in order to give mechanical strength, the superconducting wire 101 is impregnated with the epoxy resin 102, but the epoxy resin 102 has a larger thermal contraction rate than the superconducting wire 101. Therefore, as shown in FIG. 7, when a contraction force acts between the superconducting wires 101, peeling 103 occurs.
In other words, since the resin material has a large thermal shrinkage rate relative to the superconducting wire, and the epoxy resin has high strength, if the shrinkage force acts between the superconducting wires, the high-temperature superconducting wire is peeled off instead of the resin itself, and the superconducting coil It will cause performance degradation.
本発明は、上記状況に鑑みて、従来の樹脂含浸に代えて、瞬間接着剤を高温超電導コイルに塗布しながら絶縁層を挟むように巻きあげる又は更に樹脂を含浸することで、熱ひずみによる高温超電導線材の剥離をなくして高温超電導コイルの性能低下を防止することができる、高温超電導コイル及びその製造方法を提供することを目的とする。 In view of the above situation, the present invention replaces the conventional resin impregnation and rolls up the insulating layer while applying the instantaneous adhesive to the high temperature superconducting coil, or further impregnates the resin, so that the high temperature due to thermal strain can be obtained. It is an object of the present invention to provide a high temperature superconducting coil and a method for manufacturing the same, which can prevent the superconducting wire from being peeled off and prevent a deterioration in performance of the high temperature superconducting coil.
本発明は、上記目的を達成するために、
〔１〕高温超電導コイルにおいて、瞬間接着剤を高温超電導線材に塗布しながら該高温超電導線材上に絶縁層を挟むように巻き取られた構造を有することを特徴とする。
〔２〕上記〔１〕記載の高温超電導コイルにおいて、前記巻き取られた高温超電導コイル上に含浸されたエポキシ樹脂を具備することを特徴とする。
In order to achieve the above object, the present invention provides
[1] A high-temperature superconducting coil is characterized by having a structure in which an instantaneous adhesive is applied to a high-temperature superconducting wire and wound so as to sandwich an insulating layer on the high-temperature superconducting wire.
[2] The high-temperature superconducting coil according to [1] above, further comprising an epoxy resin impregnated on the wound high-temperature superconducting coil.
〔３〕上記〔１〕又は〔２〕記載の高温超電導コイルにおいて、前記瞬間接着剤がシアノアクリレート系接着剤であることを特徴とする。
〔４〕上記〔１〕又は〔２〕記載の高温超電導コイルにおいて、前記絶縁層がポリイミドフィルムであることを特徴とする。
〔５〕上記〔１〕又は〔２〕記載の高温超電導コイルにおいて、前記絶縁層が絶縁紙であることを特徴とする。
[3] The high-temperature superconducting coil according to [1] or [2], wherein the instantaneous adhesive is a cyanoacrylate adhesive.
[4] The high-temperature superconducting coil according to [1] or [2], wherein the insulating layer is a polyimide film.
[5] The high-temperature superconducting coil according to [1] or [2], wherein the insulating layer is insulating paper.
〔６〕高温超電導コイルの製造方法において、瞬間接着剤を高温超電導線材に塗布しながら、該高温超電導線材上に絶縁層を挟むように巻き取られることを特徴とする。
〔７〕上記〔６〕記載の高温超電導コイルの製造方法において、前記巻き取られる高温超電導コイルにエポキシ樹脂を含浸することを特徴とする。
〔８〕上記〔６〕又は〔７〕記載の高温超電導コイルの製造方法において、前記瞬間接着剤がシアノアクリレート系接着剤であることを特徴とする。
[6] The method for producing a high-temperature superconducting coil is characterized in that the instant adhesive is applied to the high-temperature superconducting wire and wound up so as to sandwich an insulating layer on the high-temperature superconducting wire.
[7] The method for producing a high-temperature superconducting coil according to [6], wherein the wound high-temperature superconducting coil is impregnated with an epoxy resin.
[8] In the method for producing a high-temperature superconducting coil according to [6] or [7], the instantaneous adhesive is a cyanoacrylate adhesive.
〔９〕上記〔６〕又は〔７〕記載の高温超電導コイルの製造方法において、前記絶縁層がポリイミドフィルムであることを特徴とする。
〔１０〕上記〔６〕又は〔７〕記載の高温超電導コイルの製造方法において、前記絶縁層が絶縁紙であることを特徴とする。
[9] In the method for manufacturing a high-temperature superconducting coil according to [6] or [7], the insulating layer is a polyimide film.
[10] In the method for manufacturing a high-temperature superconducting coil according to [6] or [7], the insulating layer is insulating paper.
本発明によれば、瞬間接着剤を高温超電導コイルに塗布しながら絶縁層を挟むように巻きあげる又は更に樹脂を含浸することで、熱ひずみによる高温超電導線材の剥離をなくして高温超電導コイルの性能低下を防止することができる。 According to the present invention, the application of the high-temperature superconducting coil is achieved by winding up the insulating layer while applying the instantaneous adhesive to the high-temperature superconducting coil or by further impregnating the resin, thereby eliminating the peeling of the high-temperature superconducting wire due to thermal strain. A decrease can be prevented.
本発明の高温超電導コイルは、瞬間接着剤を高温超電導線材に塗布しながら該高温超電導線材上に絶縁層を挟むように巻き取られた構造を有する。 The high-temperature superconducting coil of the present invention has a structure in which an instantaneous adhesive is applied to a high-temperature superconducting wire and wound so as to sandwich an insulating layer on the high-temperature superconducting wire.
以下、本発明の実施の形態について詳細に説明する。
図１は本発明の実施例を示す瞬間接着剤塗り巻き高温超電導コイルの製造工程を示す模式図である。
この図において、１は高温超電導線材、２は瞬間接着剤としてのシアノアクリレート系接着剤３が溜められた容器、４は高温超電導線材１の搬送用ローラ、５は絶縁層、６は高温超電導線材１と絶縁層５とが同時に巻き取られる巻取り機である。
Hereinafter, embodiments of the present invention will be described in detail.
FIG. 1 is a schematic view showing a manufacturing process of an instantaneous adhesive-coated high temperature superconducting coil showing an embodiment of the present invention.
In this figure, 1 is a high-temperature superconducting wire, 2 is a container in which a cyanoacrylate adhesive 3 as an instantaneous adhesive is stored, 4 is a transport roller for the high-temperature superconducting wire 1, 5 is an insulating layer, and 6 is a high-temperature superconducting wire. 1 and an insulating layer 5 are wound up simultaneously.
ここでは、瞬間接着剤、すなわちシアノアクリレート系接着剤３を容器２内で高温超電導線材１に塗布しながら高温超電導線材１上に絶縁層５を挟むように巻取り機６でコイル状に巻きあげるようにして、高温超電導コイルを製造する。
図２はこのようにして製造された本発明の実施例を示す瞬間接着剤塗り巻き高温超電導コイルの断面図である。
Here, the instant adhesive, that is, the cyanoacrylate adhesive 3 is applied to the high-temperature superconducting wire 1 in the container 2 and is wound in a coil shape by the winder 6 so as to sandwich the insulating layer 5 on the high-temperature superconducting wire 1. Thus, a high temperature superconducting coil is manufactured.
FIG. 2 is a cross-sectional view of an instantaneous adhesive-coated high-temperature superconducting coil manufactured in this manner according to an embodiment of the present invention.
この図において、１１は高温超電導線材、１２は高温超電導線材１１間に形成された絶縁層（ポリイミドフィルムもしくは絶縁紙）、１３は瞬間接着剤としてのシアノアクリレート系接着剤である。
図３は本発明の他の実施例を示す二重含浸高温超電導コイルの断面図である。
この図において、２１は高温超電導線材、２２は高温超電導線材２１間に形成された絶縁層（ポリイミドフィルムもしくは絶縁紙）、２３は瞬間接着剤としてのシアノアクリレート系接着剤、２４は含浸されたエポキシ樹脂、２５は冷却板である。
In this figure, 11 is a high-temperature superconducting wire, 12 is an insulating layer (polyimide film or insulating paper) formed between the high-temperature superconducting wires 11, and 13 is a cyanoacrylate adhesive as an instantaneous adhesive.
FIG. 3 is a sectional view of a double impregnated high temperature superconducting coil showing another embodiment of the present invention.
In this figure, 21 is a high-temperature superconducting wire, 22 is an insulating layer (polyimide film or insulating paper) formed between the high-temperature superconducting wires 21, 23 is a cyanoacrylate adhesive as an instantaneous adhesive, and 24 is an impregnated epoxy. Resin 25 is a cooling plate.
このように、図１，図２で示された高温超電導コイルに、更に樹脂を含浸するようにした。
本発明で用いられるシアノアクリレート系接着剤１３，２３は接着力自体は強いものの剥離に弱い特徴がある。そのため、熱ひずみによって、高温超電導線材１１，２１ではなく、シアノアクリレート系接着剤１３，２３自身が剥離を起こすため、高温超電導コイルの性能低下を引き起こすことがない。
Thus, the high temperature superconducting coil shown in FIGS. 1 and 2 was further impregnated with resin.
The cyanoacrylate-based adhesives 13 and 23 used in the present invention have a strong adhesive force but are weak against peeling. Therefore, due to thermal strain, not the high-temperature superconducting wires 11 and 21 but the cyanoacrylate adhesives 13 and 23 themselves are peeled off, so that the performance of the high-temperature superconducting coil is not deteriorated.
また、シアノアクリレート系接着剤２３が高温超電導コイルの高温超電導線材２１間に入り込んだ状態ではエポキシ樹脂２４による含浸を行っても性能低下は起きない。
このような二重含浸を行うことにより、コイル冷却板２５又はコイルケース（図示なし）と超電導コイルとを一体成型することができ、高い機械的強度を得ることができる。
したがって、本発明によれば、瞬間接着剤を高温超電導コイルに塗布しながら絶縁層を挟むように巻きあげ又は更に樹脂を含浸することで、熱ひずみによる高温超電導線材の剥離をなくして高温超電導コイルの性能低下を防止することができる。
Further, in the state where the cyanoacrylate adhesive 23 enters between the high-temperature superconducting wires 21 of the high-temperature superconducting coil, the performance does not deteriorate even if the epoxy resin 24 is impregnated.
By performing such double impregnation, the coil cooling plate 25 or the coil case (not shown) and the superconducting coil can be integrally molded, and high mechanical strength can be obtained.
Therefore, according to the present invention, the high temperature superconducting coil is removed by winding up the insulating layer while applying the instantaneous adhesive to the high temperature superconducting coil, or by impregnating the resin, thereby eliminating the peeling of the high temperature superconducting wire due to thermal strain. It is possible to prevent performance degradation.
図４は試験対象高温超電導コイルの斜視図である。
この高温超電導コイルの仕様は、内径５０ｍｍ、外径約５５ｍｍ、巻回数２０、超電導線材は希土類系高温超電導線材、線材幅４．２ｍｍ、線材厚み約０．１ｍｍ、層間絶縁材はポリイミドフィルム、厚み０．０２５ｍｍである。
図５は本発明の瞬間接着剤塗り巻き高温超電導コイルと二重含浸高温超電導コイルの通電試験結果を示す図である。
FIG. 4 is a perspective view of the high-temperature superconducting coil to be tested.
The specifications of this high temperature superconducting coil are: inner diameter 50 mm, outer diameter about 55 mm, number of turns 20, superconducting wire is rare earth high temperature superconducting wire, wire width 4.2 mm, wire thickness about 0.1 mm, interlayer insulation material is polyimide film, thickness 0.025 mm.
FIG. 5 is a diagram showing the results of energization tests of the instant adhesive-coated high temperature superconducting coil and the double impregnated high temperature superconducting coil of the present invention.
この図において、横軸はコイル通電電流ｉ〔Ａ〕、縦軸は発生電圧ｖ〔Ｖ〕であり、ａは瞬間接着剤を塗布しながら絶縁層を挟むように巻きあげたものの特性グラフ（第１実施例に対応）、ｂはさらにエポキシ樹脂を含浸したものの特性グラフ（第２実施例に対応）である。
この図５から、瞬間接着剤塗布処理、又はそれに加えてエポキシ樹脂の含浸処理を施しても、コイルの通電特性が損なわれないことが分かる。
In this figure, the horizontal axis is the coil energization current i [A], the vertical axis is the generated voltage v [V], and a is a characteristic graph (No. 1) of winding up the insulating layer while applying the instantaneous adhesive. (Corresponding to the first embodiment), b is a characteristic graph (corresponding to the second embodiment) of the impregnated epoxy resin.
From FIG. 5, it can be seen that the current-carrying characteristics of the coil are not impaired even when the instantaneous adhesive coating treatment or the epoxy resin impregnation treatment is applied.
なお、本発明は上記実施例に限定されるものではなく、本発明の趣旨に基づき種々の変形が可能であり、これらを本発明の範囲から排除するものではない。 In addition, this invention is not limited to the said Example, Based on the meaning of this invention, a various deformation | transformation is possible and these are not excluded from the scope of the present invention.
本発明の高温超電導コイルは、瞬間接着剤を高温超電導線材に塗布しながら該高温超電導線材上に絶縁層を挟むように巻き取られた構造を有する。 The high-temperature superconducting coil of the present invention has a structure in which an instantaneous adhesive is applied to a high-temperature superconducting wire and wound so as to sandwich an insulating layer on the high-temperature superconducting wire.
１，１１，２１ 高温超電導線材
２ 容器
３，１３，２３ 瞬間接着剤としてのシアノアクリレート系接着剤
４ 高温超電導線材の搬送用ローラ
５，１２，２２ 絶縁層（ポリイミドフィルムもしくは絶縁紙）
６ 高温超電導線材と絶縁層とが同時に巻き取られる巻取り機
２４ 含浸されたエポキシ樹脂
２５ 冷却板
DESCRIPTION OF SYMBOLS 1,11,21 High temperature superconducting wire 2 Container 3,13,23 Cyanoacrylate adhesive as instantaneous adhesive 4 Roller for conveying high temperature superconducting wire 5,12,22 Insulating layer (polyimide film or insulating paper)
6 Winding machine in which high-temperature superconducting wire and insulating layer are wound up simultaneously 24 Impregnated epoxy resin 25 Cooling plate
Claims (10)
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| JP2015103587A (en) * | 2013-11-22 | 2015-06-04 | 公益財団法人鉄道総合技術研究所 | High temperature superconducting coil and method of manufacturing the high temperature superconducting coil |
| JP2016136623A (en) * | 2015-01-16 | 2016-07-28 | 住友電気工業株式会社 | Superconducting coil and superconducting wire |
| JP2018011078A (en) * | 2017-09-19 | 2018-01-18 | 公益財団法人鉄道総合技術研究所 | High temperature superconducting coil and method of manufacturing the high temperature superconducting coil |
| CN113555182A (en) * | 2021-09-22 | 2021-10-26 | 上海超导科技股份有限公司 | Superconducting coil and method of manufacture |
| CN115648738A (en) * | 2022-11-02 | 2023-01-31 | 上海交通大学 | A preparation method of second-generation high-temperature superconducting tape and superconducting tape |
-
2012
- 2012-01-11 JP JP2012002645A patent/JP2013143460A/en active Pending
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| JP2015103587A (en) * | 2013-11-22 | 2015-06-04 | 公益財団法人鉄道総合技術研究所 | High temperature superconducting coil and method of manufacturing the high temperature superconducting coil |
| US9721708B2 (en) | 2013-11-22 | 2017-08-01 | Railway Technical Research Institute | High-temperature superconducting coil and method of manufacturing same |
| JP2016136623A (en) * | 2015-01-16 | 2016-07-28 | 住友電気工業株式会社 | Superconducting coil and superconducting wire |
| JP2018011078A (en) * | 2017-09-19 | 2018-01-18 | 公益財団法人鉄道総合技術研究所 | High temperature superconducting coil and method of manufacturing the high temperature superconducting coil |
| CN113555182A (en) * | 2021-09-22 | 2021-10-26 | 上海超导科技股份有限公司 | Superconducting coil and method of manufacture |
| CN113555182B (en) * | 2021-09-22 | 2021-12-14 | 上海超导科技股份有限公司 | Superconducting coil and method of manufacture |
| CN115648738A (en) * | 2022-11-02 | 2023-01-31 | 上海交通大学 | A preparation method of second-generation high-temperature superconducting tape and superconducting tape |
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