JPH0146963B2 - - Google Patents
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- Publication number
- JPH0146963B2 JPH0146963B2 JP56081760A JP8176081A JPH0146963B2 JP H0146963 B2 JPH0146963 B2 JP H0146963B2 JP 56081760 A JP56081760 A JP 56081760A JP 8176081 A JP8176081 A JP 8176081A JP H0146963 B2 JPH0146963 B2 JP H0146963B2
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- Prior art keywords
- superconducting
- wire
- wires
- purity
- superconducting wire
- Prior art date
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- 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
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- Superconductors And Manufacturing Methods Therefor (AREA)
Description
【発明の詳細な説明】
本発明は小型軽量化、高電流密度化並びに高い
安定性及び低い交流損失を目的としたAl安定化
超電導線に関するものであり、特にパルスマグネ
ツト等交流電流及び磁界モードで使用される超電
導マグネツト用巻線に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an Al-stabilized superconducting wire aimed at reducing size and weight, increasing current density, high stability, and low AC loss, and particularly relates to an Al-stabilized superconducting wire for use in AC current and magnetic field modes such as pulsed magnets. This relates to windings for superconducting magnets used in
現在、超電導マグネツト用巻線に用いられてい
る超電導材料としては、Nb−Ti，Nb−Zr等の
合金系超電導材料と、Nb3Sn，V3Ga等の化合物
超電導材料がある。そして一般にこれらの材料は
安定化材として高純度Cu又は高純度Alと複合化
されて使用される。 Currently, superconducting materials used for superconducting magnet windings include alloy superconducting materials such as Nb-Ti and Nb-Zr, and compound superconducting materials such as Nb 3 Sn and V 3 Ga. Generally, these materials are used in combination with high-purity Cu or high-purity Al as a stabilizing material.
近年、超電導マグネツトの開発及び実用化に伴
い、小型軽量化、高電流密度化並びに高い安定性
と更に、特にパルスマグネツトなどの用途には低
い交流ロスへの要求が強くなつてきた。こゝで、
前者の３点すなわち、小型軽量化、高電流密度
化、高安定性を考えた場合、高純度Alは比重が
高純度Cuに較べて1/3であり、極低温において高
い電気伝導性、高い熱伝導性を持ち、磁気抵抗効
果において飽和特性を示すなど安定化材として非
常に有効である。 In recent years, with the development and practical use of superconducting magnets, there has been a strong demand for smaller size, lighter weight, higher current density, higher stability, and especially for applications such as pulsed magnets, lower AC loss. Here,
Considering the former three points, i.e., reduction in size and weight, high current density, and high stability, high-purity Al has a specific gravity that is 1/3 that of high-purity Cu, and has high electrical conductivity at extremely low temperatures. It has thermal conductivity and exhibits saturation characteristics in the magnetoresistive effect, making it extremely effective as a stabilizing material.
しかし乍ら、Alは表面に酸化皮膜が容易にで
きること、機械的強度が超電導材料と著しく異る
ことなどからCuのように超電導材料とAlと直接
複合加工することは困難である。そのためAlと
の一体化の方法として、超電導材料を高純度Cu
と複合化し、更にその後超電導材料と高純度Cu
の複合材をAlと複合加工する方法が行なわれて
いるが、この方法でもかなり難しく、特にAlの
純度が高くなるほどAlが機械的に弱くなるため
複合化は困難である。そこで従来一般的に行われ
ている方法としては以下のものがある。 However, because Al easily forms an oxide film on its surface and its mechanical strength is significantly different from that of superconducting materials, it is difficult to directly composite process superconducting materials and Al like Cu. Therefore, as a method for integrating superconducting materials with Al, high-purity Cu
and then further superconducting materials and high-purity Cu
A method has been used to process a composite material with Al, but even this method is quite difficult, especially as Al becomes mechanically weaker as the purity of Al increases. Therefore, the following methods are commonly used in the past.
高純度の銅と超電導材料を複合加工し、その
周囲にAl線を撚り合せ、ローラー、タツクス
ヘツド等で圧縮成型をし、低温でのAlとCuの
熱膨張率の差を利用してAl線と銅と超電導材
料の複合体に密着する方法。 High-purity copper and superconducting material are compositely processed, Al wire is twisted around it, compression molded using rollers, tax heads, etc., and the difference in thermal expansion coefficient between Al and Cu at low temperatures is utilized to create Al wire. A method of adhering to a composite of copper and superconducting materials.
高純度の銅と超電導材料を複合加工し、その
周囲にCu被覆Al線を撚り合わせ、これらを半
田付けする方法。 A method in which high-purity copper and superconducting material are compositely processed, Cu-coated Al wire is twisted around it, and then these are soldered.
高純度の銅と超電導材料を複合加工して作成
した超電導素線を所定の本数撚り合わせたもの
の上に更にその周囲にCu被覆Al線を撚り合わ
せ、これらを半田付けする方法。 A method in which a predetermined number of superconducting wires made by composite processing of high-purity copper and superconducting materials are twisted together, and then Cu-coated Al wires are further twisted around the wires and then soldered.
すなわち撚線という方法を用いて超電導材料と
Cuの複合体（以下これを超電導素線と呼ぶ）の
囲りに高純度Al線を撚り合わせるという方法で
ある。 In other words, using the method of twisted wires to create superconducting materials.
This method involves twisting high-purity Al wires around a Cu composite (hereinafter referred to as superconducting strands).
これらの方法で作成されたAl安定化超電導線
は、小型軽量、高電流密度化、高安定性という３
点においては一応優れたものとなつているが、し
かしその構造がいずれも超電導素線の囲りにAl
が配置されている点及び超電導素線として高純度
銅と超電導材料の複合材、いわゆるCu外皮超電
導素線を用いている点で機械的強度、及び交流ロ
スの面からは問題があつた。すなわち、超電導線
を交流電流及び磁界において使用する場合には、
一般に交流ロスと呼ばれる損失が発生する。この
交流ロスは超電導線自体の構造に起因する損失と
超電導線を用いてマグネツトを巻いて運転した場
合の線材にかゝる電磁力などの力に対する機械的
強度に起因した損失に分けられる。 Al-stabilized superconducting wires created using these methods have three characteristics: small size, light weight, high current density, and high stability.
However, the structures are all made using Al around the superconducting wires.
There were problems in terms of mechanical strength and alternating current loss due to the placement of the superconducting wires and the use of a composite material of high-purity copper and superconducting material, so-called Cu-sheathed superconducting wires. In other words, when using superconducting wires in alternating current and magnetic fields,
Generally, a loss called AC loss occurs. This AC loss can be divided into loss due to the structure of the superconducting wire itself and loss due to the mechanical strength of the wire against forces such as electromagnetic force when a magnet is wound around the superconducting wire and operated.
前者の損失については、超電導体部分（例えば
NbTiフイラメント自身）に生じるヒステリシス
損、超電導体部分間（例えばNbTiフイラメント
間及び超電導素線間）に生ずる電磁気的結合によ
る結合損及び常電導金属部分（例えば安定化材に
用いるCuやAl）に誘起される渦電流損失の３つ
からなる。また後者の損失については、交流電
流、磁界における繰り返しの電磁力による機械的
発熱及び巻線の動きなどが考えられる。 Regarding the former loss, the superconductor part (e.g.
hysteresis loss occurring in the NbTi filament itself), coupling loss due to electromagnetic coupling occurring between superconducting parts (for example between NbTi filaments and superconducting wires), and coupling loss induced in normal conducting metal parts (for example Cu and Al used as stabilizing materials). It consists of three types of eddy current loss. The latter loss may be caused by alternating current, mechanical heat generation due to repeated electromagnetic force in a magnetic field, and movement of the winding.
すなわち、交流電流、磁界において用いる超電
導線の場合、これらの交流損失を十分小さくする
必要がある。そのためには上述の個々の損失を減
ずることが必要でありその方法として次の方法が
考えられる。 That is, in the case of superconducting wires used in alternating current and magnetic fields, it is necessary to sufficiently reduce these alternating current losses. For this purpose, it is necessary to reduce the individual losses mentioned above, and the following method can be considered as a method for this purpose.
○イ ヒステリシス損に対しては超電導体を極細多
芯（フイラメント状）にする。○B. To reduce hysteresis loss, superconductors should be made into ultra-fine multi-core (filament-shaped).
○ロ 結合損に対しては、フイラメント間及び超電
導素線間に高低抗物質を挿入してフイラメント
間及び超電導素線間の電磁気的結合を切る。○B To reduce coupling loss, insert a high-low resistance material between filaments and superconducting wires to break the electromagnetic coupling between filaments and superconducting wires.
○ハ 渦電流損に対しては、常電導金属の部分（安
定化材）の面積を減らすこと。○C To reduce eddy current loss, reduce the area of the normally conducting metal part (stabilizing material).
ただし、安定性の面より用いる安定化材の総
面積はある一定量以上必要である。この場合あ
る一定量の安定化材をまとめて配置するのでは
なく、総面積で等量となるように分割させるこ
とにより渦電流損を減らすことが可能となる。
すなわち安定化材を分散させ超電導素線の囲り
に配置させる必要がある。 However, from the viewpoint of stability, the total area of the stabilizing material used must be a certain amount or more. In this case, instead of arranging a certain amount of stabilizing material all at once, it is possible to reduce eddy current loss by dividing the stabilizing material into equal amounts in total area.
That is, it is necessary to disperse the stabilizing material and arrange it around the superconducting wire.
○ニ 機械的発熱、巻線の動きについては超電導線
自体ができるだけ機械的に強いものである必要
がある。○D Regarding mechanical heat generation and winding movement, the superconducting wire itself needs to be as mechanically strong as possible.
前に述べた従来のAl安定化超電導線では、そ
の構造が超電導素線の囲りにAlが配置されてい
る点で機械的強度及び渦電流損に対して不利な構
造である。すなわち、従来例では、超電導素線の
表面がAlに被われており、そのAlが超電導素線
に較べて機械的に弱く、塑性変形を受け易く、歪
みを受けることにより低温での電気伝導性が低下
し易い。又この構造では、電磁力などの力を直接
Alで受けることになり機械的強度及びAlの低温
での電気伝導性を良好に保つことが困難である。
また超電導素線の囲りに配置されたAlは複合加
工により作成された場合だけでなく撚線により作
成した場合においても、Al線同士は電磁気的に
接触した状態にあり、安定化材としてのAlが連
続的に配置（一体物として）されていることにな
り渦電流損失を増加させる原因となる。 The conventional Al-stabilized superconducting wire described above has a disadvantageous structure in terms of mechanical strength and eddy current loss because Al is arranged around the superconducting wire. In other words, in the conventional example, the surface of the superconducting wire is covered with Al, which is mechanically weaker than the superconducting wire and easily undergoes plastic deformation. tends to decrease. Also, with this structure, forces such as electromagnetic force cannot be directly applied.
It is difficult to maintain good mechanical strength and low-temperature electrical conductivity of Al.
In addition, the Al wires placed around the superconducting wires are in electromagnetic contact with each other, not only when they are created by composite processing but also when they are created by stranded wires, and can be used as a stabilizing material. Al is arranged continuously (as an integral part), which causes an increase in eddy current loss.
又、用いる超電導線が高純度銅をマトリツクス
とする、いわゆるCu外皮超電導線である点で超
電導素線間の結合電流に対して不利な構造であ
る。 Furthermore, since the superconducting wire used is a so-called Cu-sheathed superconducting wire with a matrix of high-purity copper, it has a disadvantageous structure with respect to coupling current between superconducting strands.
すなわち、素線外皮がCuであるために超電導
素線間同士が接触している場合にはCu又超電導
素線間にAl線を介在している場合にはCu−Al−
Cuといずれの場合にも低抵抗の金属を介して素
線同士が電磁気的に接触しているために超電導素
線間に結合電流が生じ、その結果結合損失を生じ
ることになる。 In other words, if the superconducting strands are in contact with each other because the outer sheath of the strands is Cu, Cu-Al-
Since the strands are in electromagnetic contact with each other via Cu and a low-resistance metal in either case, a coupling current is generated between the superconducting strands, resulting in a coupling loss.
本発明は以上述べた従来の問題点に鑑みてなさ
れたものであり、超電導素線と安定化材である高
純度Al線の撚線において、中心が超電導素線か、
又は絶縁被覆されたCu又はCu合金を中心とする
非磁性金属及び合金よりなり、その囲りに超電導
素線と高純度Al線が交互に撚り合さつているこ
とを特徴とするものであり、又上記の撚線が半田
により固着されている場合は、機械的に更に強固
なものとなり好ましい特性を発揮する。また本発
明において用いる超電導素線は、超電導材料とし
てNbTi，Nb3Snなどいずれでもよいがその超電
導材料がヒステリシス損低減のため極細多芯フイ
ラメントの状態で存在し、かつ個々のフイラメン
トの囲りには局所的不安定性を除去するに足りる
高純度Cuがついており、かつ超電導素線の外皮
は素線間の結合電流を切る意味でCu系合金を用
いるCu系合金外皮極細多芯超電導線である。 The present invention was made in view of the above-mentioned conventional problems, and in a stranded wire of a superconducting wire and a high-purity Al wire as a stabilizing material, whether the center is the superconducting wire or
Or, it is made of non-magnetic metal and alloy mainly consisting of Cu or Cu alloy with insulation coating, and is characterized by superconducting wires and high-purity Al wires being alternately twisted around the non-magnetic metal and alloy, Furthermore, when the above-mentioned stranded wires are fixed by solder, the wires become mechanically stronger and exhibit preferable characteristics. In addition, the superconducting material used in the superconducting wire used in the present invention may be any of NbTi, Nb 3 Sn, etc., but the superconducting material exists in the form of ultrafine multifilament filaments to reduce hysteresis loss, and the superconducting material is present in the form of ultrafine multifilament filaments around each filament. is a Cu-based alloy coated ultra-fine multicore superconducting wire that has enough high-purity Cu to eliminate local instability, and the superconducting wire's outer sheath is made of a Cu-based alloy to cut the coupling current between the wires. .
このような構造のAl安定化超電導線は次に述
べる特徴があり第１図に従つて説明する。 The Al-stabilized superconducting wire having such a structure has the following characteristics, which will be explained with reference to FIG.
まず第１に機械的強度の面から述べれば、個々
の高純度Al線１は必ず三方から超電導素線２等
の比較的強度の高い材料により支えられているた
め撚線の周囲が全てAlで被れている場合に較べ
て、電磁力等の外力に対して機械的に強く、塑性
変形を受け難く、歪み等による低温での電気伝導
性の低下など防止することが可能である。 First of all, in terms of mechanical strength, each high-purity Al wire 1 is always supported from three sides by relatively strong materials such as superconducting wires 2, so the entire periphery of the stranded wire is made of Al. Compared to the case where it is covered, it is mechanically stronger against external forces such as electromagnetic force, is less susceptible to plastic deformation, and it is possible to prevent a decrease in electrical conductivity at low temperatures due to distortion or the like.
更に渦電流損失の点からみると高純度Al線１
は超電導素線２の囲りに分割され、かつ高純度
Al線間には必ず高抵抗のCu系合金外皮３を有す
る超電導素線が存在するため高純度Al線間の電
磁気的結合はなく、電磁気的にも完全に分割され
ている。そのために渦電流損失は大巾に減少す
る。 Furthermore, from the point of view of eddy current loss, high purity Al wire1
is divided into areas around the superconducting wire 2 and has high purity
Since there is always a superconducting wire having a high-resistance Cu-based alloy sheath 3 between the Al wires, there is no electromagnetic coupling between the high-purity Al wires, and they are completely separated electromagnetically. Therefore, eddy current losses are significantly reduced.
更に、超電導素線間の結合損失については、超
電導素線２の外皮３は高抵抗のCu系合金である
ために超電導素線間には結合電流が発生しにく
く、それ故超電導素線間の結合損失は大巾に減少
する。 Furthermore, regarding the coupling loss between superconducting strands, since the outer sheath 3 of the superconducting strands 2 is made of a high-resistance Cu-based alloy, it is difficult for coupling current to occur between the superconducting strands. Coupling loss is greatly reduced.
本発明において、超電導素線を構成するCu系
合金とはCuNi，Cu−Be等の合金で超電導材料と
の複合加工可能でかつ、結合電流を切る十分な電
気抵抗を有する材料である。 In the present invention, the Cu-based alloy constituting the superconducting wire is an alloy such as CuNi or Cu-Be, and is a material that can be combined with superconducting materials and has sufficient electrical resistance to cut the coupling current.
また、本発明での撚線の中心に用いられるCu
系合金を中心とする非磁性金属及び合金とは、超
電導素線と共に用いられて撚線としての機械的及
び電磁気的性質になんら不利な影響を及ぼさない
金属であれば差し支えない。更に撚線を補強する
程度の強度を兼ねそなえておれば更に良い。また
Al線同士の電気的接触を防止し渦電流損失を低
減し得る電気抵抗を有する必要がある。 In addition, Cu used at the center of the twisted wire in the present invention
The non-magnetic metals and alloys, mainly alloys, may be any metal as long as it is used together with the superconducting strands and does not have any adverse effect on the mechanical and electromagnetic properties of the stranded wire. It would be even better if it also had enough strength to reinforce the twisted wires. Also
It is necessary to have electrical resistance that can prevent electrical contact between Al wires and reduce eddy current loss.
また、より高い安定性を考えた場合は絶縁被覆
（例えばホルマール絶縁等）されたCuなどでもよ
い。 In addition, if higher stability is considered, Cu coated with an insulation coating (for example, formal insulation) may be used.
また本発明において、中心線の囲りに撚られて
いる超電導素線のいくつかが超電導素線と同程度
以上の機械的性質をもち、かつAl同士の電磁気
的接触を防止し得る電気抵抗を有する絶縁被覆さ
れたCu又はCu系合金を中心とする非磁性金属及
び合金と入れ換えてもなんら差支えない。 In addition, in the present invention, some of the superconducting strands twisted around the center line have mechanical properties comparable to or higher than that of the superconducting strands, and have electrical resistance that can prevent electromagnetic contact between Al. There is no problem in replacing it with non-magnetic metals and alloys mainly consisting of Cu or Cu-based alloys with an insulating coating.
更に、フイラメント間の結合損失を考えた場合
オーダー的には超電導素線間のそれに較べて小さ
いが、導体設計上必要がある場合には、フイラメ
ント間の結合損失を減少させる意味で超電導フイ
ラメントの囲りに局所的不安定性を除去するに足
りる高純度Cuをつけ更にその囲りにフイラメン
ト間の結合電流を切る意味で比較的高抵抗なCu
−NiなどのCu系合金を配置した、いわゆる三層
構造Cu系合金外皮極細多芯線を用いてもなんら
差支えない。 Furthermore, when considering the coupling loss between filaments, it is on the order of magnitude smaller than that between superconducting strands, but if it is necessary in the conductor design, surrounding the superconducting filaments may be used to reduce the coupling loss between filaments. Add enough high-purity Cu to eliminate local instability, and surround it with relatively high-resistance Cu to cut off the coupling current between filaments.
There is no problem in using a so-called three-layer structure Cu-based alloy coated ultrafine multifilamentary wire in which a Cu-based alloy such as -Ni is arranged.
また本発明においては、軽量、高安定性等の観
点より安定化材として高純度Alを用いているが、
これらがあまり重要視されない場合は安定化材と
して高純度Cuをかわりに用いても良い。 In addition, in the present invention, high-purity Al is used as a stabilizing material from the viewpoint of light weight and high stability.
If these are not so important, high-purity Cu may be used instead as a stabilizing material.
次に本発明の実施例について述べる。 Next, examples of the present invention will be described.
外径0.3φmm、Nb−Tiフイラメント数37本、ツ
イストピツチ10mm、Cu−Ni外皮CuNi／Cu／
NbTi3層構造NbTi極細多芯超電導素線４本と、
0.3φmm高純度Al線３本を第１図の断面構造にな
るように撚り合せた後、半田含浸した。このよう
なAl安定化超電導線を6T（テスラー）で２秒の半
サイクルでパルス運転を行い、交流ロスについて
調べたところ、Alの渦電流損は0.07J／ｍ、超電
導素線間の結合損は0.18J／ｍと銅外皮の超電導
素線を用いてAlを分割しないで撚線集合した超
電導線にくらべ１桁以上小さかつた。
Outer diameter 0.3φmm, number of Nb-Ti filaments 37, twist pitch 10mm, Cu-Ni outer skin CuNi/Cu/
NbTi three-layer structure NbTi ultra-fine multicore superconducting strands,
Three 0.3φmm high-purity Al wires were twisted together to have the cross-sectional structure shown in Figure 1, and then impregnated with solder. When such an Al-stabilized superconducting wire was pulse-operated at 6T (Tesler) for a half cycle of 2 seconds and the AC loss was investigated, the eddy current loss of Al was 0.07 J/m, and the coupling loss between the superconducting wires was was 0.18 J/m, which is more than an order of magnitude smaller than that of a superconducting wire made of a copper-clad superconducting wire and stranded together without dividing Al.
以上により、優れた安定性を有し、交流ロスが
小さく軽量で機械的特性も良好なAl安定化超電
導線であることがわかつた。又この構造のAl安
定化超電導線が工業的に安価に製造することが可
能となつた。 From the above, it was found that the Al-stabilized superconducting wire has excellent stability, low AC loss, is lightweight, and has good mechanical properties. Furthermore, it has become possible to industrially produce Al-stabilized superconducting wires with this structure at low cost.
第１図は本発明の実施例の１つであるAl安定
化超電導線の横断面を示す断面図である。
１……高純度Al線、２……超電導素線、３…
…Cu系外皮。
FIG. 1 is a sectional view showing a cross section of an Al-stabilized superconducting wire, which is one of the embodiments of the present invention. 1... High purity Al wire, 2... Superconducting wire, 3...
...Cu-based outer skin.
Claims (1)
の撚線において、中心がCu系合金外皮を有する
超電導素線か又は、絶縁被覆されたCu又はCu合
金、もしくは非磁性金属又は合金よりなり、その
囲りにCu系合金外皮を有する超電導素線と高純
度Al線が交互に撚り合さつていることを特徴と
するAl安定化超電導線。 ２ 超電導素線と安定化材としての高純度Al線
の撚線において、中心がCu系合金外皮を有する
超電導素線か又は、絶縁被覆されたCu又はCu合
金、もしくは非磁性金属又は合金よりなり、その
囲りにCu系合金を有する超電導素線と高純度Al
線が交互に撚り合さつており、更にそれらが半田
で固着されていることを特徴とするAl安定化超
電導線。[Scope of Claims] 1. In a stranded wire of a superconducting wire and a high-purity Al wire as a stabilizing material, the center is a superconducting wire having a Cu-based alloy sheath, or a superconducting wire with an insulating coating, Cu or Cu alloy, or a non-conducting wire. An Al-stabilized superconducting wire made of a magnetic metal or alloy, characterized in that superconducting wires having a Cu-based alloy sheath and high-purity Al wires are alternately twisted together. 2. In a stranded wire of superconducting wire and high-purity Al wire as a stabilizing material, the center is made of superconducting wire with a Cu-based alloy sheath, or insulated Cu or Cu alloy, or non-magnetic metal or alloy. , a superconducting wire with Cu-based alloy surrounding it and high-purity Al
An Al-stabilized superconducting wire characterized by wires twisted together alternately and further fixed with solder.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56081760A JPS57196405A (en) | 1981-05-28 | 1981-05-28 | Al stabilized superconductive wire |
| US06/382,363 US4506109A (en) | 1981-05-28 | 1982-05-26 | Al-stabilized superconducting wire and the method for producing the same |
| AT82302756T ATE19562T1 (en) | 1981-05-28 | 1982-05-27 | AL-STABILIZED SUPERCONDUCTOR AND PROCESS FOR ITS MANUFACTURE. |
| DE8282302756T DE3270840D1 (en) | 1981-05-28 | 1982-05-27 | Al-stabilized superconductor, and method of producing the same |
| EP82302756A EP0067591B1 (en) | 1981-05-28 | 1982-05-27 | Al-stabilized superconductor, and method of producing the same |
| US06/666,632 US4659007A (en) | 1981-05-28 | 1984-10-31 | The method for producing an Al-stabilized superconducting wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56081760A JPS57196405A (en) | 1981-05-28 | 1981-05-28 | Al stabilized superconductive wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57196405A JPS57196405A (en) | 1982-12-02 |
| JPH0146963B2 true JPH0146963B2 (en) | 1989-10-12 |
Family
ID=13755399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56081760A Granted JPS57196405A (en) | 1981-05-28 | 1981-05-28 | Al stabilized superconductive wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57196405A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61109209A (en) * | 1984-11-01 | 1986-05-27 | 日立電線株式会社 | Superconducting wire for heat switches |
| JPS62271308A (en) * | 1986-05-19 | 1987-11-25 | 日本原子力研究所 | Superconductive cable conductor |
| JPH0817063B2 (en) * | 1991-09-11 | 1996-02-21 | 超電導発電関連機器・材料技術研究組合 | Design method of aluminum stabilized superconducting wire |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS602728B2 (en) * | 1975-11-12 | 1985-01-23 | 株式会社日立製作所 | Method for manufacturing compound composite superconductor |
| JPS60727B2 (en) * | 1976-11-15 | 1985-01-10 | 古河電気工業株式会社 | Manufacturing method of aluminum stabilized composite superconducting wire |
| JPS5952491B2 (en) * | 1977-10-04 | 1984-12-20 | 古河電気工業株式会社 | Method for producing stabilized superconducting stranded wire |
| JPS5952486B2 (en) * | 1977-10-25 | 1984-12-20 | 日立電線株式会社 | superconducting conductor |
-
1981
- 1981-05-28 JP JP56081760A patent/JPS57196405A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57196405A (en) | 1982-12-02 |
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