JPH0612931A - Method for producing compound superconducting wire - Google Patents

Method for producing compound superconducting wire

Info

Publication number
JPH0612931A
JPH0612931A JP4167557A JP16755792A JPH0612931A JP H0612931 A JPH0612931 A JP H0612931A JP 4167557 A JP4167557 A JP 4167557A JP 16755792 A JP16755792 A JP 16755792A JP H0612931 A JPH0612931 A JP H0612931A
Authority
JP
Japan
Prior art keywords
compound
composite pipe
billet
diameter
hollow portion
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
Application number
JP4167557A
Other languages
Japanese (ja)
Inventor
Osamu Taguchi
修 田口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4167557A priority Critical patent/JPH0612931A/en
Publication of JPH0612931A publication Critical patent/JPH0612931A/en
Pending legal-status Critical Current

Links

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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/30—Reducing waste in manufacturing processes; Calculations of released waste quantities

Landscapes

  • Wire Processing (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)

Abstract

PURPOSE:To manufacture a compound superconductive wire rod with an excellent yield by composing a composite pipe of a tubular extruding billet made of high melting point component containing metal and Cu for a superconductive compound, inserting a low melting point component for the superconductive compound into the obtained hollow portion, followed by reducing a diameter, and applying a heat treatment. CONSTITUTION:A hollow portion 4 is formed by disposing a Cu tube 3 in the center of a large-diameter Cu tube 5, thus providing a tubular shape as a whole. Numerous Cu coated Nb rods 1, 2 are filled between the Cu tubes 3, 5, thereby forming an extruding billet. The extruding billet is heated within a temperature range from 105 deg.C to 150 deg.C, followed by extruding, thereby obtaining a composite pipe. An Sn rod is inserted into the hollow portion 4, followed by drawing, and a diameter thereof is reduced, thus manufacturing a compound superconductive wire rod containing Nb3Sn. Consequently, a diameter of a composite pipe can be reduced without breaking the composite pipe while keeping a large volume. As a result, it is possible to decrease material loss due to working and enhance working efficiency.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】この発明は、例えばＮｂ3Ｓｎや
Ｎｂ3Ａｌなどの超電導化合物を有する化合物超電導線
材の製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a compound superconducting wire having a superconducting compound such as Nb 3 Sn or Nb 3 Al.

【０００２】[0002]

【従来の技術】従来、Ｎｂ３Ｓｎ，Ｎｂ3Ａｌなどの超
電導化合物を有する極細多心線材の製造方法として、次
のような方法が知られている。即ち、Ｎｂ3Ｓｎの場合
を例にとれば、図２〜図６に加工中の横断面を示すごと
くである。図中、１は多数のＮｂ棒、２は各Ｎｂ棒１を
被覆したＣｕ管、５はこれらを収容した大径Ｃｕ管、６
は大径Ｃｕ管５の中央に配置されたＣｕ棒、７は一体化
Ｃｕ（図３）、８は穴あけ中空部（図４）、９はＳｎ棒
（図５）、１０はＣｕ−Ｓｎ合金（図１０）、１１はＮ
ｂ3Ｓｎ化合物層（図１０）である。2. Description of the Related Art Conventionally, the following method has been known as a method for producing an ultrafine multifilamentary wire having a superconducting compound such as Nb 3 Sn, Nb 3 Al. That is, taking the case of Nb 3 Sn as an example, FIGS. 2 to 6 show transverse cross sections during processing. In the figure, 1 is a large number of Nb rods, 2 is a Cu pipe covering each Nb rod 1, 5 is a large diameter Cu pipe accommodating them, 6
Is a Cu rod arranged in the center of the large diameter Cu pipe 5, 7 is an integrated Cu (FIG. 3), 8 is a hollow hole (FIG. 4), 9 is a Sn rod (FIG. 5), and 10 is a Cu—Sn alloy. (Fig. 10), 11 is N
b is 3 Sn compound layer (FIG. 10).

【０００３】次に、製造方法について説明する。まず、
図２に示すように、多数のＣｕ被覆Ｎｂ棒１，２を、Ｃ
ｕ棒６を中心に配置して、大径Ｃｕ管５の中に整列して
充填する。これを熱間押出加工すると、Ｃｕは互いに接
合してその横断面が図３に示すごとくになる。この後、
図４に示すように、一体化Ｃｕ７の中心部に穴あけ中空
部８を設け、そこにＳｎ棒９を差し込む。そして、この
Ｎｂ／Ｃｕ／Ｓｎ複合棒に縮径加工を施すと、その横断
面は図５に示すごとくとなる。Next, the manufacturing method will be described. First,
As shown in FIG. 2, a large number of Cu-coated Nb rods 1 and 2 were replaced with C
The u rod 6 is arranged at the center, and the large diameter Cu pipe 5 is aligned and filled. When this is hot extruded, Cu is bonded to each other and its cross section becomes as shown in FIG. After this,
As shown in FIG. 4, a holed hollow portion 8 is provided in the central portion of the integrated Cu 7, and a Sn rod 9 is inserted therein. Then, when the Nb / Cu / Sn composite rod is subjected to a diameter reduction process, its cross section becomes as shown in FIG.

【０００４】この後、熱処理すると、Ｓｎが拡散し、図
６に示すごとく、Ｃｕ部はＣｕ−Ｓｎ合金１０となりＮ
ｂフィラメント１の周囲にはＮｂ3Ｓｎ化合物層１１が
生成される。このようなＮｂ3Ｓｎ生成熱処理は、小さ
なコイルでは多くの場合、線材を巻回してコイルにした
後に施す。その理由は、Ｎｂ3Ｓｎの脆い性質に基づ
く。Ｎｂ3Ｓｎを生成させると、極低温において超電導
状態となり、例えば高磁場発生用に使用できるようにな
る。After that, when heat-treated, Sn diffuses, and the Cu portion becomes a Cu-Sn alloy 10 as shown in FIG.
A Nb 3 Sn compound layer 11 is formed around the b filament 1. In many cases, such Nb 3 Sn formation heat treatment is performed after winding a wire rod into a coil in a small coil. The reason is based on the brittle nature of Nb 3 Sn. When Nb 3 Sn is generated, it becomes a superconducting state at an extremely low temperature and can be used, for example, for generating a high magnetic field.

【０００５】[0005]

【発明が解決しようとする課題】以上説明したように、
従来のＮｂ3Ｓｎ超電導線材の製造方法においては、Ｃ
ｕを一体化した後、複合棒の縦方向に長い穴をあけなけ
ればならず、その困難性から、複合棒を長さ方向に複数
本に分断した後、穴あけ加工することとなるため、その
後の引抜加工等の断面縮小加工において、先端、後端に
おける材料損失が多くなり、また加工作業の段取が多く
なり、作業能率が低いものとなるなどの問題点があっ
た。As described above,
In the conventional method for manufacturing a Nb 3 Sn superconducting wire, C
After integrating u, it is necessary to make a long hole in the longitudinal direction of the composite rod, and due to its difficulty, it is necessary to divide the composite rod into a plurality of pieces in the longitudinal direction and then to make a hole. In the cross-section reduction processing such as the drawing processing, there was a problem that the material loss at the front end and the rear end increased, the setup of the processing operation increased, and the work efficiency became low.

【０００６】この発明は、上記のような問題点を解決す
ることを課題としてなされたものであり、複合体を分断
することなく、大きな体積のまま縮径加工して、加工に
よる材料損失を低下させ、また加工作業の能率を向上さ
せることができる化合物超電導線の製造方法を得ること
を目的とする。The present invention has been made to solve the above-mentioned problems, and it is possible to reduce the material loss due to processing by subjecting a composite to a diameter reduction processing with a large volume without dividing it. It is also an object of the present invention to provide a method for producing a compound superconducting wire which can improve the efficiency of processing work.

【０００７】[0007]

【課題を解決するための手段】請求項１の発明に係る化
合物超電導線材の製造方法は、押出用ビレットの中心部
にＣｕ又はＣｕ基合金からなるパイプを配置することに
より、管状の押出用ビレットを作るようにしたものであ
る。According to a first aspect of the present invention, there is provided a method for producing a compound superconducting wire, wherein a pipe made of Cu or a Cu-based alloy is arranged at the center of the extrusion billet to form a tubular extrusion billet. Is designed to make.

【０００８】請求項２の発明に係る化合物超電導線材の
製造方法は、押出用ビレットの中心部にＣｕ又はＣｕ基
合金からなるパイプを配置することにより、管状の押出
用ビレットを作るようにし、また超電導化合物の高融点
成分を含む金属としてＮｂ又はＮｂ基合金を用い、低融
点成分を含む金属としてＳｎ，Ｓｎ基合金，Ａｌ及びＡ
ｌ基合金のいずれか１種類の金属を用いたものである。In the method for producing a compound superconducting wire according to the second aspect of the present invention, a tubular extruding billet is produced by arranging a pipe made of Cu or a Cu-based alloy in the center of the extruding billet. Nb or Nb-based alloy is used as the metal containing the high melting point component of the superconducting compound, and Sn, Sn-based alloy, Al and A are used as the metal containing the low melting point component.
One of the l-based alloys is used.

【０００９】請求項３の発明に係る化合物超電導線材の
製造方法は、押出用ビレットの中心部にＣｕ又はＣｕ基
合金からなるパイプを配置することにより、管状の押出
用ビレットを作るようにし、１５０℃〜１０５０℃の温
度で押出加工するようにしたものである。In the method for producing a compound superconducting wire according to the third aspect of the present invention, a tubular extruding billet is produced by arranging a pipe made of Cu or a Cu-based alloy at the center of the extruding billet. The extrusion processing is performed at a temperature of 1050C to 1050C.

【００１０】[0010]

【作用】この発明においては、押出用ビレットを予め管
状に製作することにより、押出加工後の穴明け加工を省
略する。In the present invention, the extrusion billet is formed into a tubular shape in advance, so that the punching process after the extrusion process is omitted.

【００１１】[0011]

【実施例】以下、この発明の一実施例を図について説明
する。図１は請求項１ないし請求項３の発明の一実施例
による押出用ビレットの断面図である。図において、３
は押出用ビレットの中心部に配置されたＣｕ管で、４は
その中空部である。従来の押出用ビレットでは、図２の
ように中心部にＣｕ棒３を配置したのに対して、この実
施例における押出用ビレットでは、中心部にＣｕ管３を
使用して中空部４を設け、全体を管状にしている。ま
た、押出用ビレットの大きさは、外径２３０ｍｍ、内径
９２ｍｍ、長さ７００ｍｍであった。その中に、Ｃｕ被
覆Ｎｂ棒１，２を１０００本充填した（図１は簡略化し
て示している）。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of an extrusion billet according to an embodiment of the present invention. In the figure, 3
Is a Cu tube arranged at the center of the extrusion billet, and 4 is its hollow portion. In the conventional extrusion billet, the Cu rod 3 is arranged at the center as shown in FIG. 2, whereas in the extrusion billet in this embodiment, the hollow portion 4 is provided by using the Cu pipe 3 at the center. , The whole is tubular. The size of the extrusion billet was 230 mm in outer diameter, 92 mm in inner diameter, and 700 mm in length. 1000 Cu-coated Nb rods 1 and 2 were filled therein (FIG. 1 is simplified).

【００１２】次に、Ｎｂ3Ｓｎ超電導線材の製造方法に
ついて説明する。まず、管状の押出用ビレットを５５０
℃に加熱して押出加工した。押出後の複合パイプ寸法
は、外径５５ｍｍ、内径２２ｍｍ、長さ６ｍであった。
この複合パイプを切断することなくＳｕ棒を組合せた
後、引抜加工をした。このとき、先端では外径５５ｍｍ
のとき、長さ１５０ｍｍに相当する部分、後端では同じ
く長さ２０ｍｍに相当する部分で材料不均質が生じ、最
終的に切除した。従来は、同様の大きさの複合棒を４本
に切断し引抜加工していたので、切除部分は８カ所に及
んでいた。しかし、この実施例によれば、切除部分は先
端、後端の２カ所のみであり、材料のロスは１／４と、
大幅に減少する。また、引抜加工作業は、その準備作業
が従来４回かかっていたところを、上記実施例では１
回、即ち従来の１／４で済み、加工能率も向上する。Next, a method of manufacturing the Nb 3 Sn superconducting wire will be described. First, a tubular extruding billet 550
It was extruded by heating to ℃. The dimensions of the composite pipe after extrusion were 55 mm in outer diameter, 22 mm in inner diameter, and 6 m in length.
The composite pipes were combined with Su rods without cutting and then drawn. At this time, the outer diameter at the tip is 55 mm
At this time, material inhomogeneity occurred at a portion corresponding to a length of 150 mm and a portion corresponding to a length of 20 mm at the rear end, and the material was finally cut off. Conventionally, a composite rod of the same size was cut into four pieces and then drawn, so that there were eight cutout portions. However, according to this embodiment, there are only two cut portions, the front end and the rear end, and the material loss is 1/4.
Greatly reduced. Further, in the drawing work, the place where the preparation work conventionally takes four times is
The number of times, that is, 1/4 of the conventional one is sufficient, and the processing efficiency is improved.

【００１３】なお、上記実施例では押出用ビレットを５
５０℃に加熱して押出加工を行ったが、これはＣｕを接
合して、一体化するために必要な作業であって、一般に
は１５０℃〜１０５０℃の温度範囲で、温間又は熱間で
押出加工することが望ましい。これは、Ｃｕをより確実
に一体化させるためであり、Ｃｕを一体化させると、そ
の後の伸線加工、例えば、この複合棒を細くまで（φ３
ｍｍ程度）加工し、さらにこの線を切断して約７〜５０
０本までの集束体とし、Ｃｕパイプ又はＴａパイプに入
れて組合せ体として引抜加工するときなどに、加工を安
定させるのに大きな効果をもたらす。In the above embodiment, the extrusion billet is 5
It was heated to 50 ° C. and extruded, but this is a work necessary for joining and integrating Cu, and is generally in the temperature range of 150 ° C. to 1050 ° C. It is desirable to extrude. This is to more reliably integrate Cu, and when Cu is integrated, subsequent wire drawing, for example, until the composite rod becomes thin (φ3
Approximately 7 to 50 mm after processing and cutting this line
When a bundle of up to zero bundles is put into a Cu pipe or a Ta pipe and a combination is drawn, a great effect is brought about in stabilizing the processing.

【００１４】また、押出用ビレットは、中央に孔を有す
る円板上の蓋を両端に配置し、電子ビーム溶接などの方
法によって減圧密封して組合せ体とする。これは、押出
用ビレット内のガスを取り除いて、Ｃｕをより確実に一
体化し、押出加工を良好に行うために必要な工程であ
る。Further, the extrusion billet has a disk-shaped lid having a hole in the center at both ends, and is sealed under reduced pressure by a method such as electron beam welding to form a combination. This is a step necessary to remove the gas in the extrusion billet, integrate Cu more reliably, and perform favorable extrusion processing.

【００１５】さらに、Ｎｂ3Ｓｎの高融点金属として
は、Ｎｂの他に、Ｎｂ−Ｚｒ合金、Ｎｂ−Ｖ合金、Ｎｂ
−Ｔａ合金、Ｎｂ−Ｈｆ合金等、０.１〜５０ｗｔ％の
添加物を含むＮｂ基合金とすることができる。また、Ｃ
ｕ母材としては、Ｃｕ−Ｓｎ合金、Ｃｕ−Ｔｉ合金、Ｃ
ｕ−Ｉｎ合金、Ｃｕ−Ｃｒ合金、Ｃｕ−Ａｌ合金等のＣ
ｕ基合金とすることができる。さらに、低融点成分金属
としては、Ｓｎ、Ｓｎ基合金、Ａｌ、Ａｌ基Ｃｕ合金
等、Ｓｎ基又はＡｌ基合金とすることができる。Further, as the refractory metal of Nb 3 Sn, in addition to Nb, Nb-Zr alloy, Nb-V alloy, Nb
A Nb-based alloy containing 0.1 to 50 wt% of an additive such as a -Ta alloy or an Nb-Hf alloy can be used. Also, C
As the u base material, Cu-Sn alloy, Cu-Ti alloy, C
C such as u-In alloy, Cu-Cr alloy, Cu-Al alloy
It can be a u-based alloy. Further, the low melting point component metal can be Sn, Sn-based alloy, Al, Al-based Cu alloy, Sn-based or Al-based alloy.

【００１６】さらにまた、この発明による製造方法は、
Ｎｂ3ＳＮやＮｂ3ＡｌなどのＮｂ基超電導化合物からな
る線材の製造方法として実施できるだけでなく、Ｖ3Ｇ
ａやＶ3ＳｎなどのＶ基超電導化合物から成る線材の製
造方法にも適用できる。Furthermore, the manufacturing method according to the present invention is
Not only can it be carried out as a method for producing a wire rod made of an Nb-based superconducting compound such as Nb 3 SN or Nb 3 Al, V 3 G
It can also be applied to a method of manufacturing a wire made of a V-based superconducting compound such as a or V 3 Sn.

【００１７】[0017]

【発明の効果】以上説明したように、請求項１の発明の
化合物超電導線材の製造方法は、管状の押出用ビレット
を押出加工して複合パイプを製作するようにしたので、
押出加工後に穴明けを行う必要がなくなり、従って大き
な体積の材料を分断することなく縮径加工することがで
き、この結果材料の損失を低下させて、歩留まりを向上
させることができるという効果を奏する。また、材料を
分断せずに済むので、後段の加工の回数も減少させるこ
とができ、加工作業の能率を大幅に向上させることがで
きるという効果も奏する。As described above, in the method for producing the compound superconducting wire according to the first aspect of the present invention, the tubular extrusion billet is extruded to produce the composite pipe.
Since it is not necessary to make a hole after extrusion, it is possible to reduce the diameter of a material having a large volume without dividing the material, and as a result, it is possible to reduce the loss of the material and improve the yield. . Further, since it is not necessary to divide the material, the number of subsequent processing steps can be reduced, and the efficiency of the processing operation can be significantly improved.

【００１８】また、請求項２の発明の化合物超電導線材
の製造方法は、超電導化合物の高融点成分を含む金属と
してＮｂ又はＮｂ基合金を用い、低融点成分を含む金属
としてＳｎ，Ｓｎ基合金，Ａｌ及びＡｌ基合金のいずれ
か１種類の金属を用いたので、上記請求項１の発明の効
果に加えて、高価なＮｂ材の損失を低減させることがで
き、経済性を大幅に向上させることができるという効果
を奏する。Further, in the method for producing a compound superconducting wire according to the invention of claim 2, Nb or Nb-based alloy is used as the metal containing the high melting point component of the superconducting compound, and Sn, Sn based alloy is used as the metal containing the low melting point component, Since any one kind of metal of Al and Al-based alloy is used, in addition to the effect of the invention of claim 1, the loss of expensive Nb material can be reduced and the economical efficiency is greatly improved. There is an effect that can be.

【００１９】さらに、請求項３の発明の化合物超電導線
材の製造方法は、１５０℃〜１０５０℃の温度で押出加
工するようにしたので、上記請求項１の発明の効果に加
えて、Ｃｕをより確実に一体化することができ、これに
より伸線加工を安定させ、品質を向上させることができ
るという効果を奏する。Furthermore, in the method for producing the compound superconducting wire according to the third aspect of the present invention, since the extrusion processing is performed at a temperature of 150 ° C. to 1050 ° C., in addition to the effect of the first aspect of the invention, Cu is further added. It is possible to surely integrate them, and thereby it is possible to stabilize wire drawing and improve the quality.

【図面の簡単な説明】[Brief description of drawings]

【図１】請求項１ないし請求項３の発明の一実施例によ
る押出用ビレットの横断面図である。FIG. 1 is a cross-sectional view of an extrusion billet according to an embodiment of the inventions of claims 1 to 3. FIG.

【図２】従来の押出用ビレットの一例の横断面図であ
る。FIG. 2 is a cross-sectional view of an example of a conventional extrusion billet.

【図３】図２の押出用ビレットに押出加工を施した状態
を示す横断面図である。3 is a cross-sectional view showing a state where the extrusion billet of FIG. 2 is subjected to extrusion processing.

【図４】図３の複合棒に穴明け加工を施した状態を示す
横断面図である。FIG. 4 is a transverse cross-sectional view showing a state where the composite rod of FIG. 3 is perforated.

【図５】図４のものにＳｎ棒を挿入して縮径加工を施し
た状態を示す横断面図である。FIG. 5 is a transverse cross-sectional view showing a state in which a Sn rod is inserted into the one shown in FIG. 4 and a diameter reducing process is performed.

【図６】図５のものを熱処理した状態を示す横断面図で
ある。FIG. 6 is a cross-sectional view showing a state in which the thing of FIG. 5 is heat-treated.

【符号の説明】[Explanation of symbols]

１ Ｎｂ棒 ２ Ｃｕ管 ３ Ｃｕ管 ５ 大径Ｃｕ管 ９ Ｓｎ棒 １１ Ｎｂ3Ｓｎ層1 Nb rod 2 Cu pipe 3 Cu pipe 5 Large diameter Cu pipe 9 Sn rod 11 Nb 3 Sn layer

─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成４年８月１０日[Submission date] August 10, 1992

【手続補正１】[Procedure Amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】００１６[Correction target item name] 0016

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【００１６】さらにまた、この発明による製造方法は、
Ｎｂ3ＳｎやＮｂ3ＡｌなどのＮｂ基超電導化合物からな
る線材の製造方法として実施できるだけでなく、Ｖ3Ｇ
ａやＶ3ＳｎなどのＶ基超電導化合物から成る線材の製
造方法にも適用できる。Furthermore, the manufacturing method according to the present invention is
Nb 3 S n and Nb 3 Al not only be implemented as a manufacturing method of a wire made of a Nb-based superconducting compounds such as, V 3 G
It can also be applied to a method of manufacturing a wire made of a V-based superconducting compound such as a or V 3 Sn.

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 超電導化合物の高融点成分を含む金属
と、Ｃｕ又はＣｕ基合金とにより管状の押出用ビレット
を作る工程と、 押出加工により上記押出用ビレットから複合パイプを作
る工程と、 上記超電導化合物の低融点成分を含む金属を、上記複合
パイプの中空部に挿入し、これらを一体として縮径加工
し熱処理する工程とを有していることを特徴とする化合
物超電導線材の製造方法。1. A step of forming a tubular extrusion billet from a metal containing a high melting point component of a superconducting compound and Cu or a Cu-based alloy; a step of forming a composite pipe from the extrusion billet by extrusion; A method for producing a compound superconducting wire, comprising a step of inserting a metal containing a low melting point component of a compound into the hollow portion of the composite pipe, and subjecting these to integral diameter reduction processing and heat treatment. 【請求項２】 Ｎｂ又はＮｂ基合金と、Ｃｕ又はＣｕ基
合金とにより管状の押出用ビレットを作る工程と、 押出加工により上記押出用ビレットから複合パイプを作
る工程と、 Ｓｎ，Ｓｎ基合金，Ａｌ及びＡｌ基合金のいずれか１種
類の金属を、上記複合パイプの中空部に挿入し、これら
を一体として縮径加工し熱処理する工程とを有している
ことを特徴とする化合物超電導線材の製造方法。2. A step of forming a tubular extrusion billet from Nb or an Nb-based alloy and Cu or a Cu-based alloy, a step of forming a composite pipe from the extrusion billet by extrusion, a Sn, Sn-based alloy, A compound superconducting wire rod, comprising a step of inserting any one of Al and Al-based alloys into the hollow portion of the composite pipe, and subjecting these to integral diameter reduction processing and heat treatment. Production method. 【請求項３】 超電導化合物の高融点成分を含む金属
と、Ｃｕ又はＣｕ基合金とにより管状の押出用ビレット
を作る工程と、 １５０℃〜１０５０℃の温度で押出加工することによ
り、上記押出用ビレットから複合パイプを作る工程と、 上記超電導化合物の低融点成分を含む金属を、上記複合
パイプの中空部に挿入し、これらを一体として縮径加工
し熱処理する工程とを有していることを特徴とする化合
物超電導線材の製造方法。3. A step of forming a tubular extrusion billet from a metal containing a high melting point component of a superconducting compound and Cu or a Cu-based alloy, and extruding at a temperature of 150 ° C. to 1050 ° C. It has a step of making a composite pipe from a billet, and a step of inserting a metal containing a low melting point component of the superconducting compound into the hollow portion of the composite pipe, and subjecting these to a diameter reduction processing and heat treatment as one body. A method of manufacturing a compound superconducting wire characterized by the following.
JP4167557A 1992-06-25 1992-06-25 Method for producing compound superconducting wire Pending JPH0612931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4167557A JPH0612931A (en) 1992-06-25 1992-06-25 Method for producing compound superconducting wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4167557A JPH0612931A (en) 1992-06-25 1992-06-25 Method for producing compound superconducting wire

Publications (1)

Publication Number Publication Date
JPH0612931A true JPH0612931A (en) 1994-01-21

Family

ID=15851936

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4167557A Pending JPH0612931A (en) 1992-06-25 1992-06-25 Method for producing compound superconducting wire

Country Status (1)

Country Link
JP (1) JPH0612931A (en)

Similar Documents

Publication Publication Date Title
JPS61194155A (en) Production of nb3sn superconductive wire
CN119361237B (en) Preparation method of artificial pinning NbTi multi-core superconducting composite wire
US5111574A (en) Method and apparatus for producing superconducting joints
US4002504A (en) Multifilament superconductors
US5228928A (en) Method of manufacturing Nb3 Sn superconducting wire
CN114566326B (en) Method for obtaining composite coated iron-based superconducting wire strip through extrusion forming
JPH08180752A (en) Nb3Sn superconducting wire and manufacturing method thereof
JP3434175B2 (en) Method for producing compound superconducting wire
JP3124448B2 (en) Method for manufacturing Nb (3) Sn superconducting wire
JPS63299809A (en) Production of fine tube packed with high density filler
JPS5830682B2 (en) Conductor No. Seizouhouhou
JPH05123875A (en) Production of composite pipe
JP2521723B2 (en) Nb (bottom 3) Method for manufacturing Sn superconducting wire
JPS60127612A (en) Method of producing nb3sn superconductive wire
JPS6233688B2 (en)
JPH04277409A (en) Compound superconducting wire and manufacture thereof
JPH04259709A (en) Superconductive wire manufacture method
JPS63273512A (en) Manufacture of composite wire rod
JPS60181248A (en) Production of superconductive alloy
JPH0432111A (en) Manufacture of compound superconductive wire
JPH05342932A (en) Manufacture of compound superconductive wire
JPH0428120A (en) Manufacture of nb3 sn compound superconductive wire
GB2201830A (en) Superconducting composite wire
JPH04129106A (en) Manufacture of superconductive wire material made of nb3-sn compound
JPS6025846B2 (en) Manufacturing method of single-core superconducting wire