JPH01132013A - Manufacture of superconductive wire material - Google Patents
Manufacture of superconductive wire materialInfo
- Publication number
- JPH01132013A JPH01132013A JP62290921A JP29092187A JPH01132013A JP H01132013 A JPH01132013 A JP H01132013A JP 62290921 A JP62290921 A JP 62290921A JP 29092187 A JP29092187 A JP 29092187A JP H01132013 A JPH01132013 A JP H01132013A
- Authority
- JP
- Japan
- Prior art keywords
- silver
- tape
- tube
- strips
- superconducting
- 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
- 239000000463 material Substances 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 238000000137 annealing Methods 0.000 claims description 7
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 34
- 229910052709 silver Inorganic materials 0.000 abstract description 31
- 239000004332 silver Substances 0.000 abstract description 31
- 238000000034 method Methods 0.000 abstract description 14
- 238000002844 melting Methods 0.000 abstract description 6
- 230000008018 melting Effects 0.000 abstract description 6
- 238000005245 sintering Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 3
- 239000000155 melt Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 229910052727 yttrium Inorganic materials 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
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明は超伝導線材の製造方法に関する。[Detailed description of the invention] (b) Industrial application field The present invention relates to a method for manufacturing a superconducting wire.
（ロ）従来の技術
近年、例えばＹＢａｔＣｕｓＯｙ−８（０＜＆＜１）で
表わされる酸化物材料が液体窒素の沸点（７７Ｋ）より
高い臨界温度で超伝導状態に入ることが見出され、高温
酸化物超伝導材料として脚光を浴びている。(b) Prior art In recent years, it has been discovered that, for example, an oxide material represented by YBatCusOy-8 (0<&<1) enters a superconducting state at a critical temperature higher than the boiling point of liquid nitrogen (77K), and It is attracting attention as an oxide superconducting material.
（ハ）発明が解決しようとする問題点
ところがその超伝導材料は殆どの場合、線材として用い
られるので、各種の線材化法が提案されているが、何れ
も焼結法に依る方法であるので、単位面積当りに流し得
る電流量が少ないという問題点があった。(c) Problems to be solved by the invention However, in most cases, the superconducting material is used as a wire rod, and various methods have been proposed for making it into wire rods, but all of them rely on sintering. However, there was a problem in that the amount of current that could be passed per unit area was small.
一方、焼結法に依らずにレーザビームを用いた溶融法の
場合は比較的大電流が流せるが、現在のところテープ状
のものしか実現されておらず、線材への応用は未到達の
分野である。On the other hand, in the case of the melting method using a laser beam without relying on the sintering method, a relatively large current can be passed, but so far only tape-shaped products have been realized, and application to wire rods is an unreached field. It is.
更に、線材として要求される条件として多芯化は云うに
及ばず、交流用途には撚線化まで要求される。Furthermore, the requirements for wires include not only multi-core wires, but also stranded wires for AC applications.
従って本発明の目的とするところは、多芯化、撚線化が
可能で、然も大電流が流し得る超伝導線材の製造方法を
提供［るところにある。Therefore, it is an object of the present invention to provide a method for producing a superconducting wire that can be made into multi-core wires, twisted wires, and capable of carrying a large current.
（ニ）問題点を解決するための手段
本発明は、酸素透過材料から成るテープとにその徒手ノ
ｊ向に超伝導材料を多数の細条に配置し、該細条のみを
ビームスポットで局部的に加熱して−ｆｊ溶融した後、
上記テープを幅方向に丸めて環状に成形して多数の細条
を内部に有する管体とした後、該管体を酸化雰囲気中で
アニール処理するものである。(d) Means for solving the problem The present invention involves arranging a superconducting material in a large number of strips in the direction of the tape made of an oxygen-permeable material, and localizing only the strips with a beam spot. After heating to −fj and melting,
The tape is rolled in the width direction and formed into a ring shape to form a tube having a large number of strips therein, and then the tube is annealed in an oxidizing atmosphere.
（ホ）作用
本発明に依れば、高臨界電流密度を有し、且つ多芯は云
うに及ばず、撚線化も容易な超伝導線材を得ることがで
きる。(E) Effect According to the present invention, a superconducting wire having a high critical current density and which can be easily twisted as well as multi-core can be obtained.
（へ）実施例
以下に本発明をＹ−Ｂａ−Ｃｕ−０系の酸化物超伝導材
料を用いる場合について説明する。(F) EXAMPLE The present invention will be explained below using a Y-Ba-Cu-0 based oxide superconducting material.
［実施例Ｉ］ −
第１図は本発明方法の一実施例を示した概念図であって
、（１）は酸素透過性の材料、例えば銀テープで、厚み
約１００μで幅２〜５ｍｏ程度のものが用いられる。（
２）は該銀テープ（１，）表面にＹ−Ｂａ−Ｃｕ−０系
の超伝導材料を塗布するマルチノズルである。ここで塗
布するＹ−Ｂａ−Ｃｕ−０系の超伝導材料としては、基
本的にはＹとＢａとＣｕとの粉末を１に３の比率でで混
ぜ合わせ、プロピレングリコールなどの有機溶媒を用い
てペースト化されたもので、具体的には、Ｙ、０．とＢ
ａｃＯｓとＣｕＯとをモル比１ ：４ ：６で混合して
いる。このマルチノズル（２）を用いて銀テープ（１）
表面には超伝導材料から成る多数の細条（３）（３）・
・・・が塗布される。これらの細条（３）＜３ ）・・
・・とじては幅が１０〜２０μ、間隔は２０〜５０μ、
厚みは５〜１０μであって、銀テープ（１）の長手方向
に延在している。（４）はこれらの細条（３）（３）・
・・・のみをスポット対照するレーザ光源で、該各細条
（３）（３）・・・・を同時に加熱できるようにマルチ
ビーム構造となっている。このレーザ光ｆｉ（４＞には
ＹＡＧレーザが用いられ、その出力は各細条（３）（３
）・・・を完全に溶融させ得るだけの高出力、例えば１
０’Ｗ／■８以−Ｌを有している。レーザビームに依っ
て一旦溶融された超伝導細条（３）（３）・・・・を有
する銀デーゾ（１）は細条（３）（３）・・・を内側に
して銀デーゾ（１〉の幅方向に順次ガイド（５）（５）
に依って丸められ環状に成形されて行く、完全に丸めら
れて銀デーゾ（１）の両端が重なり管状になる直前でそ
の管内に溶融銀（６）が溶融槽（７）から流し込まれる
。流し込まれた溶融銀（６）が凝固するまでに、更にガ
イド（５）に依って銀テープ（１）の両端が重なり管状
に成形された状態でその重なった個所を溶接レーザ（８
）にて対照加熱して管体（９）として完成する。[Example I] - Figure 1 is a conceptual diagram showing an example of the method of the present invention, in which (1) is an oxygen permeable material, such as a silver tape, with a thickness of about 100 μ and a width of about 2 to 5 mo. are used. (
2) is a multi-nozzle that applies a Y-Ba-Cu-0 based superconducting material to the surface of the silver tape (1,). The Y-Ba-Cu-0-based superconducting material to be applied here is basically a mixture of powders of Y, Ba, and Cu in a ratio of 1 part to 3 parts, and an organic solvent such as propylene glycol is used. Specifically, Y, 0. and B
acOs and CuO are mixed at a molar ratio of 1:4:6. Silver tape (1) using this multi-nozzle (2)
The surface has many stripes (3) (3) made of superconducting material.
... is applied. These details (3)<3)...
...The width of the binding is 10-20μ, the spacing is 20-50μ,
The thickness is 5 to 10 microns and extends in the longitudinal direction of the silver tape (1). (4) These Articles (3)(3)・
It has a multi-beam structure so that each of the strips (3), (3), etc. can be heated simultaneously using a laser light source that spot-targets only the stripes (3), (3), and so on. A YAG laser is used for this laser beam fi (4), and its output is
)..., for example, 1
It has 0'W/■8 or more -L. The silver deso (1) having the superconducting strips (3) (3)... once melted by a laser beam is turned into a silver deso (1) with the strips (3) (3)... inside. > Sequential guide in the width direction (5) (5)
Molten silver (6) is poured into the tube from the melting tank (7) just before the silver deso (1) is completely rolled and the ends overlap to form a tube. Before the poured molten silver (6) solidifies, both ends of the silver tape (1) are overlapped by the guide (5) to form a tubular shape, and the overlapping area is welded with a welding laser (8).
) to complete the tubular body (9).
このようにして得られた管体（９）を酸化雰囲気のアニ
ール炉（１０）に導いて９２０℃、６時間のアニール処
理を施す。このアニール処理の結果、酸素が銀テープ（
１）を透過して超伝導材料から成る多数の細条（３）（
３）・・・・に到達し、その酸素を取り込んで超伝導材
料から成る多数の細条（３）（３）・・・・は窒素の沸
点である７７に以上の高温で超伝導状態を示す高温酸化
物超伝導細条、ｍ）（ｔｔ）・・・・となる、このよう
にして、銀パイプ内に多数の超伝導細条を有する線材が
得られる。The tubular body (9) thus obtained is introduced into an annealing furnace (10) in an oxidizing atmosphere and subjected to an annealing treatment at 920° C. for 6 hours. As a result of this annealing process, oxygen is removed from the silver tape (
1), a large number of strips of superconducting material (3) (
3) ..., the numerous strips (3) (3) ... of superconducting material take in the oxygen and become superconducting at a high temperature above 77, which is the boiling point of nitrogen. In this way, a wire having a large number of superconducting strips in a silver pipe is obtained, as shown in FIG.
［実施例Ｉ］
第１図は本発明方法の他の実施例を示した概念図であっ
て、（１）、（２）、（３）、（４）、（５）、（１０
）は夫々第１図を参照し一つつ説明した実施例の場合と
同様に、銀テープ、マルチノズル、超伝導材料細条、レ
ーザ光源、ガイド、並びにアニール炉である。第１図と
異なるところは、銀テープ（１）表面に超伝導材料から
成る多数の細条（３）（３）・・・・が塗布され、レー
ザ光源（４）からのレーザビームに依って加熱溶融され
た後の細条（３）（３）・・・・表面を銀材で被覆する
工程を追加する点と、銀テープ（１）の両端を重ね管状
になる直前でその管内に溶融銀（６）を流し込む工程を
なくしたところにある。[Example I] FIG. 1 is a conceptual diagram showing another example of the method of the present invention, in which (1), (2), (3), (4), (5), (10)
) are a silver tape, a multi-nozzle, a superconducting material strip, a laser light source, a guide, and an annealing furnace, respectively, as in the embodiment described one by one with reference to FIG. The difference from Fig. 1 is that a large number of stripes (3) (3), etc. made of superconducting material are applied to the surface of the silver tape (1), and the laser beam from the laser light source (4) is applied to the silver tape (1). Thin strips (3) after being heated and melted (3)... The addition of a step of coating the surface with silver material, and the addition of a step to cover both ends of the silver tape (1) and melting it into the tube just before it becomes a tube. The process of pouring silver (6) is eliminated.
より詳細に説明すると、加熱溶融後の細条（３）（３）
・・・を銀鍍金槽（１２）に挿入し、細条（３）（３）
・表面に厚み０．１〜０．５Ｉの銀の鍍金層（１３）を
設けて細条（３）（３）・・・・表面を被覆している。To explain in more detail, the strips after heating and melting (3) (3)
Insert ... into the silver plating tank (12) and strip (3) (3)
- A silver plating layer (13) with a thickness of 0.1 to 0.5I is provided on the surface to cover the surface of the strips (3) (3).
その後は第１の実施例の場合と同様にガイド（５）（５
）（５）の働きに依って環状に丸められ、溶接レーザ（
８）に依って管体（９）に成形され、アニール炉（１０
）に導かれて、銀管内に多数の超伝導細条を有する線材
を得ている。After that, as in the case of the first embodiment, the guides (5) (5)
)(5), it is rolled into an annular shape and the welding laser (
8) into a tube body (9), and an annealing furnace (10).
) to obtain a wire with many superconducting strips inside a silver tube.
尚、この第２の実施例の場合、銀管の中心部に空洞（１
４）が形成きれるが、本線材を超伝導状態で使用する場
合には７７にの液体窒素下に置く必要があり、銀管外周
のみならず、この空洞（１４）にも液体窒素を流すよう
にすれば、より効率的に超伝導状態を維持せしめること
ができる。In the case of this second embodiment, there is a cavity (1 hole) in the center of the silver tube.
4) is formed, but when using this wire in a superconducting state, it is necessary to place it under liquid nitrogen at 77, and it is necessary to flow liquid nitrogen not only around the outer circumference of the silver tube but also into this cavity (14). By doing so, the superconducting state can be maintained more efficiently.
また上記した線材化工程中に捩じり工程を追加すれば線
材の撚線化が実現きれる。Further, by adding a twisting step to the above-described wire rod forming step, the wire rod can be twisted.
斯して得られた超伝導線材は、液体窒素の沸点より高い
９２にで超伝導状態に入り、また電流密度としては、５
０００ Ａ／ｃ＋ｎ”以上を記録した。The superconducting wire thus obtained enters a superconducting state at a temperature of 92°C, which is higher than the boiling point of liquid nitrogen, and the current density is 5°C.
000 A/c+n'' or more was recorded.
尚、上述の本発明実施例ではＹ−Ｂａ−Ｃｕ−０系の酸
化物超伝導材料を例に挙げて説明したが、Ｙの代わりに
Ｙｂ、 Ｔｍ、 Ｅｒ、などの希土類材料も同様に用い
ることができる。In the above embodiments of the present invention, Y-Ba-Cu-0 based oxide superconducting material was used as an example, but rare earth materials such as Yb, Tm, Er, etc. may be used instead of Y. be able to.
（ト）発明の効果
本発明は、以上の説明から明らかな如く、酸素透過材料
から成るテープ上にその長手方向に超伝導材料を多数の
細条に配置し、該細条のみをビームスポットで局部的に
加熱して一旦溶蝕した後、ト記テープを幅方向に丸めて
環状に成形して多数の細条を内部に有する管体とした後
、該管体を酸化雰囲気中でアニール処理する方法である
。従って、超伝導材料が焼結ではなく溶融処理できるの
で、超伝導材料が高密度となり、高臨界電流密度が記録
される。また流れ作業で多芯の高温超伝導線材が製造き
れ、然も撚線化も容易に為し得る。(G) Effects of the Invention As is clear from the above description, the present invention provides a method in which a superconducting material is arranged in many strips in the longitudinal direction on a tape made of an oxygen-permeable material, and only the strips are exposed to a beam spot. After being locally heated and eroded, the tape is rolled up in the width direction to form a ring shape to form a tube with many stripes inside, and then the tube is annealed in an oxidizing atmosphere. It's a method. Therefore, since the superconducting material can be melt processed rather than sintered, the superconducting material becomes dense and high critical current densities are recorded. In addition, multicore high temperature superconducting wires can be manufactured in an assembly line, and they can also be easily twisted.
第１図は本発明方法を示した概念図、第２図は本発明方
法の他の実施例を示した概念図である。
（１）・・・・銀テープ、（３）・・・・超伝導材料細
条、（５）・・・・ガイド、 （６）・・・・溶融銀
、（９〉・・・・管体、 （１０）・・・・アニー
ル炉、＜１１）・・・・高温酸化物超伝導細条、（１２
）・・・・銀鍍金槽、（１３）・・・・鍍金層、（１４
）・・・・空洞。FIG. 1 is a conceptual diagram showing the method of the present invention, and FIG. 2 is a conceptual diagram showing another embodiment of the method of the present invention. (1)... Silver tape, (3)... Superconducting material strip, (5)... Guide, (6)... Molten silver, (9>... Tube body, (10)...Annealing furnace, <11)...High temperature oxide superconducting strip, (12
)...Silver plating tank, (13)...Plating layer, (14
)····cavity.
Claims (1)
超伝導材料を多数の細条に配置し、該細条のみをビーム
スポットで局部的に加熱して一旦溶融した後、上記テー
プを幅方向に丸めて環状に成形して多数の細条を内部に
有する管体とした後、該管体を酸化雰囲気中でアニール
処理することを特徴とした超伝導線材の製造方法。(1) A large number of strips of superconducting material are arranged in the longitudinal direction on a tape made of an oxygen-permeable material, and only the strips are locally heated with a beam spot to melt them, and then the tape is 1. A method for producing a superconducting wire, which comprises rolling the tube in a circular direction to form a tube having a large number of strips therein, and then annealing the tube in an oxidizing atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62290921A JPH01132013A (en) | 1987-11-18 | 1987-11-18 | Manufacture of superconductive wire material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62290921A JPH01132013A (en) | 1987-11-18 | 1987-11-18 | Manufacture of superconductive wire material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01132013A true JPH01132013A (en) | 1989-05-24 |
Family
ID=17762233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62290921A Pending JPH01132013A (en) | 1987-11-18 | 1987-11-18 | Manufacture of superconductive wire material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01132013A (en) |
-
1987
- 1987-11-18 JP JP62290921A patent/JPH01132013A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5244876A (en) | Method for joining parts of ceramic high-temperature superconductor material | |
| JPH01132013A (en) | Manufacture of superconductive wire material | |
| JP2904998B2 (en) | Solid object made of ceramic high-temperature superconducting material connected to metal conductor and method of manufacturing the same | |
| AU1708988A (en) | Ceramic superconducting devices and fabrication methods | |
| JPH0346710A (en) | Manufacture of superconductive wire | |
| JPH02239520A (en) | Manufacture of superconductive wire | |
| JPH027309A (en) | Manufacture of oxide type superconductive wire | |
| JPH0215514A (en) | Manufacture of oxide superconductor and superconductive magnet | |
| JPH07330331A (en) | Method for preparing rapidly superconductive ceramic wire orribbon | |
| JPS63281318A (en) | Manufacture of compound superconductive wire | |
| JPH02257529A (en) | Manufacture of oxide superconductor | |
| JPH01143744A (en) | Production of oxide superconducting fine wire | |
| SU1590051A3 (en) | Method of producing continuous superconductor | |
| JPS61261465A (en) | Manufacture of compound superconductor | |
| JPH0362978A (en) | Method of producing oxide superconductor circuit | |
| JPH01221814A (en) | Manufacture of oxide for superconductive wire rod | |
| JPH0281405A (en) | Manufacture of coil-like superconductor material and manufacture of superconducting coil using the material | |
| JPH02257527A (en) | Manufacture of oxide superconductor | |
| JPH06302232A (en) | Oxide superconductive element material and manufacture of oxide superconductive wire | |
| JPH01151298A (en) | Superconducting electromagnetic shield body | |
| JPH02199719A (en) | Manufacture of oxide superconductive wire rod | |
| JPH0453051B2 (en) | ||
| JPS63291320A (en) | Manufacture of oxide superconductive wire | |
| JPH02255506A (en) | Production of oxide superconductor | |
| JPS63310585A (en) | Connection of superconductive wire |