JPS63239741A - Manufacture for superconductor - Google Patents
Manufacture for superconductorInfo
- Publication number
- JPS63239741A JPS63239741A JP62073842A JP7384287A JPS63239741A JP S63239741 A JPS63239741 A JP S63239741A JP 62073842 A JP62073842 A JP 62073842A JP 7384287 A JP7384287 A JP 7384287A JP S63239741 A JPS63239741 A JP S63239741A
- Authority
- JP
- Japan
- Prior art keywords
- superconducting
- superconductor
- oxide
- superconductive
- wire
- 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.)
- Granted
Links
- 239000002887 superconductor Substances 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000002002 slurry Substances 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims abstract 2
- 239000000126 substance Substances 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 3
- 239000011707 mineral Substances 0.000 abstract 3
- 239000000843 powder Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000002994 raw material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000570 Cupronickel Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 235000011911 Echinocactus horizonthalonius horizonthalonius Nutrition 0.000 description 1
- 235000011499 Ferocactus hamatacanthus Nutrition 0.000 description 1
- 244000231499 Turks head Species 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005491 wire drawing Methods 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】
（産業上の利用分野）
本発明は酸化物系超電導線の製造方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing an oxide superconducting wire.
（従来の技術）
従来酸化物系超電導線の製造方法としては、第５図およ
び第６図に示すように金属性パイプα４の中に酸化物超
電導体とすべく配合した原料粉α９を圧縮挿入し、これ
を伸線や圧延加工によって減面加工後最終的な熱処理を
施して原料粉を酸化物超電導体にする方法が行われてい
た。この方法ではパイプ中に原料粉を入れるため、長尺
のものができず、また超電導線の断面構造が単−芯のも
のしか製造できなかった。また超電導の低磁界不安定現
象や交流損失が大きいなどの特性面においても問題とな
っていた。(Prior art) As shown in FIGS. 5 and 6, the conventional method for manufacturing oxide-based superconducting wire involves compressing and inserting raw material powder α9 blended to form an oxide superconductor into a metal pipe α4. However, the method used was to reduce the area by wire drawing or rolling and then subject it to a final heat treatment to turn the raw material powder into an oxide superconductor. In this method, raw material powder is put into the pipe, so long wires cannot be produced, and superconducting wires with a cross-sectional structure of only a single core can only be produced. There were also problems with the characteristics of superconductors, such as low magnetic field instability and high AC loss.
（発明が解決・しようとする問題点）
本発明は上記の問題に鑑みなされたもので長尺の酸化物
系超電導線が連続的に能率良く製造でき、しかも超電導
特性が優れた線の製造を可能としたものである。(Problems to be Solved by the Invention) The present invention has been made in view of the above-mentioned problems, and is capable of manufacturing long oxide-based superconducting wires continuously and efficiently, and that also has excellent superconducting properties. This made it possible.
（問題点を解決するための手段および作用）本発明は酸
化物系超電導体および非超電導性無機物のスラリーを非
超電導性無機物が酸化物系超電導体を取囲むように配置
し、該スラリーの自重または加圧により、ダイスを用い
該スラリーを押出して複合線とし、該複合線を加熱乾燥
した後減面加工を施し、次いで捻り加工を施しながら外
周に金属テープを巻回することを特徴とする特許線の製
造方法である。(Means and effects for solving the problem) The present invention arranges a slurry of an oxide superconductor and a non-superconducting inorganic substance so that the non-superconducting inorganic substance surrounds the oxide superconductor, and Alternatively, the slurry is extruded using a die under pressure to form a composite wire, the composite wire is heated and dried, then subjected to an area reduction process, and then a metal tape is wound around the outer periphery while being twisted. This is a patented wire manufacturing method.
本発明において酸化物系超電導体とはＣａ −Ｂａ−Ｃ
Ｕ −Ｏ系、Ｌａ−３ｒ−Ｃｕ−０系、Ｙ −Ｂａ −
Ｃｕ −０系、５ｒ−Ｂａ−Ｃｕ−０系などに２Ｎ ｔ
Ｆ４型化合物超電導体やに３ＮｉＦ、型化合物超電導
体であり、また非超電導性無機物としてはＭｇＯ１Ｃａ
Ｏ１Ｙ２０３、ＢａＴｉＯ３などが使用できる。In the present invention, the oxide-based superconductor is Ca-Ba-C
U-O system, La-3r-Cu-0 system, Y-Ba-
2Nt for Cu-0 series, 5r-Ba-Cu-0 series, etc.
F4 type compound superconductor is 3NiF, type compound superconductor, and non-superconducting inorganic substance is MgO1Ca.
O1Y203, BaTiO3, etc. can be used.
しかして本発明は上記の酸化物系超電導体および非超電
導性無機物の粉末を例えば水などを加えて混練しスラリ
ーとし、第１図に示すような装置により製造するもので
ある。すなわち超電導性を示す酸化物スラ！Ｊ−（１１
を必要とする単芯または多芯の数だけ、例えば中央に置
きその周囲を取囲むように非超電導性無機物スラリー（
２）を例えばホッパー（３）に仕切り（４）を設けて上
記酸化物スラリーが混合しないように配置する。そして
その下方に超電導性酸化物を非超電導性無機物が取囲む
形状の穴を有するダイス（５）が配置しである。According to the present invention, the above-mentioned oxide superconductor and non-superconducting inorganic powder are kneaded with water, for example, to form a slurry, and the slurry is produced using an apparatus as shown in FIG. In other words, it is an oxide slurry that exhibits superconductivity! J-(11
For example, place the non-superconducting inorganic slurry (
2) is arranged, for example, by providing a partition (4) in the hopper (3) so that the oxide slurry does not mix. A die (5) having a hole shaped like a superconducting oxide surrounded by a non-superconducting inorganic substance is placed below it.
上記の超電導性および非超電導性無機物の酸化物スラリ
ーは、その自重または加圧によりダイスから水平に押出
され超電導性酸化物が非超電導性無機物に取囲まれた形
状に成形され線状体（６）となる。次いでこの線状体を
ガイドロール（７）により加熱炉（８）に誘導し、ここ
で一部加熱乾燥され、この後タークスヘッドやカセット
ローラダイスのロール（９）により所定の寸法まで減面
加工される。次にこの線状体に図示しない捻り装置によ
り捻り加工を施しながら金属テープ６Ｉを外周に巻回し
た後熱処理して第２図に示すような多芯の超電導性酸化
物αυの周囲を非超電導性無機物α擾が取囲み、その外
周に金属テープα〔が巻回された超電導線０国を製造す
るものである。The above oxide slurry of superconducting and non-superconducting inorganic substances is extruded horizontally from a die by its own weight or pressure, and is formed into a shape in which the superconducting oxide is surrounded by non-superconducting inorganic substances, forming a linear body (6 ). Next, this linear body is guided to a heating furnace (8) by a guide roll (7), where it is partially heated and dried, and then subjected to area reduction processing to a predetermined size by a roll (9) of a Turk's head or a cassette roller die. be done. Next, a metal tape 6I is wound around the outer periphery of this linear body while being twisted using a twisting device (not shown), and then heat-treated to form a non-superconducting layer around the multi-core superconducting oxide αυ as shown in FIG. A superconducting wire surrounded by a magnetic inorganic material α and a metal tape α [wound around the outer periphery] is produced.
本発明においては断面が円形の超電導線の他、ダイスの
形状を変えることにより第３図に示すような偏平状の超
電導性酸化物αυの周囲を取囲む非超電導性無機物σ２
と、その外周を金属テープαＣが巻回された断面が長方
形の超電導線０国も製造することが可能である。In the present invention, in addition to a superconducting wire with a circular cross section, by changing the shape of the die, a non-superconducting inorganic material σ2 surrounding a flat superconducting oxide αυ as shown in FIG.
It is also possible to manufacture a superconducting wire with a rectangular cross section, the outer periphery of which is wound with a metal tape αC.
（実施例） 以下に本発明の一実施例について説明する。(Example) An embodiment of the present invention will be described below.
Ｙ２Ｏ３、Ｂａ２ＣＯ３およびＣｕＯ粉末をＹ：Ｂａ：
Ｃｕ−１，７８：０，２５：１．２５になるように配合
し、これらに対し約１０％の水を加えて約５０時間混練
する。一方ＭｇＯ１ＣａＯおよびＴｉＯ２と水よ・りな
るスラリーを用意し、これらのスラリーを第１図に示す
ように前者をホッパーの中央に、後者をその周囲に配置
し上方より加圧してダイス（５）より水平に押出し線状
（６）を成形した。これをロール（７）により減面加工
し、さらに捻り加工と同時に厚さ０，０１ｉｎ幅５１１
のキュプロニッケルテープ（ＩＩを巻付は最終的に線径
１，５ｍｍφ、長さ５０ｍの線とした。この線を９００
℃の温度で２４時間熱処理を施して第３図に示す超電導
線ａ１を作製した。比較のため従来例としてＹ２Ｏ３、
Ｂａ２Ｃｏ、およびＣ１０粉を同様に混練し、内径礼９
４１ｍ、外径３Ｍｍ、長さ３００ｉ＋ｍのキュプロニッ
ケルパイプ中に圧縮充填し、カセットローラーダイスに
より外径１．５ｍｉ＋、長さ１２０ＯＮＭの線に加工し
９００℃の温度で２４時間加熱した。上記の線から各々
１０００１１１１のサンプルを採り四端子法により臨界
電流を測定した。その結果を第１表に示す。Y2O3, Ba2CO3 and CuO powder as Y:Ba:
Cu-1,78:0, 25:1.25 are blended, about 10% water is added to these, and the mixture is kneaded for about 50 hours. On the other hand, prepare a slurry consisting of MgO1CaO, TiO2 and water, place the former in the center of the hopper and the latter around it as shown in Figure 1, pressurize it from above, and pour it through the die (5). A horizontally extruded linear shape (6) was formed. This was subjected to surface reduction processing using a roll (7), and then twisted to a thickness of 0.01 inch and a width of 511 mm.
The cupronickel tape (II) was wound onto a wire with a wire diameter of 1.5 mmφ and a length of 50 m.
The superconducting wire a1 shown in FIG. 3 was produced by heat treatment at a temperature of .degree. C. for 24 hours. For comparison, as a conventional example, Y2O3,
Ba2Co and C10 powder were kneaded in the same way, and
It was compressed and filled into a cupronickel pipe of 41 m, outer diameter 3 Mm, and length 300 i+m, processed into a wire with outer diameter 1.5 mi+ and length 120 ONM using a cassette roller die, and heated at a temperature of 900° C. for 24 hours. 1,000,1111 samples were taken from each of the above lines, and the critical current was measured by the four-terminal method. The results are shown in Table 1.
第 １ 表
表から明らかなように従来材の線材断面に占める超電導
体の面積は本発明材の約２倍であるにも拘らず、従来材
は本発明材より臨界電流密度が低い。また通電率を０．
Ｉ Ａ ／ ｍｉｎから５０Ａ／ｍｉｎに変えた場合、
従来材は低磁界でフランクスジャンプを示し約２人でク
エンチ（常電導転移）したが本発明材は全（異常がなか
った。As is clear from Table 1, although the area of the superconductor in the wire cross section of the conventional material is approximately twice that of the material of the present invention, the critical current density of the conventional material is lower than that of the material of the present invention. Also, the energization rate is set to 0.
When changing from IA/min to 50A/min,
The conventional material showed a Franks jump in a low magnetic field and quenched (normal conduction transition) in about two people, but the material of the present invention showed no abnormality.
（効 果）
以上に説明したように本発明によれば低磁界で安定な、
しかも優れた特性を示す酸化物超電導線の長尺の線が容
易に製造することができるもので工業上顕著な効果を奏
するものである。(Effects) As explained above, according to the present invention, the magnetic field is stable in a low magnetic field.
In addition, long oxide superconducting wires exhibiting excellent properties can be easily produced, which brings about significant industrial effects.
第１図は本発明の製造方法の一例を示す模式図、第２図
乃至第４図は本発明により製造した超電導線の横断面図
、第５図および第６図は従来の超電導線の横断面図であ
る。
１・・・超電導性酸化物スラリー、２・・・非超電導性
無機物スラリー、３・・・ホッパー、４・・仕切り、５
・・・夕′イス、６・・・線状体、７・・・ガイドロー
ル、８・・・加熱炉、９・・・ロール、１０・・金属テ
ープ、１１・・・超電導性酸化物、１２・・・非超電導
性無機物、１３・・・超電導線、１４・・・金属性パイ
プ、１５・・・原料粉。FIG. 1 is a schematic diagram showing an example of the manufacturing method of the present invention, FIGS. 2 to 4 are cross-sectional views of a superconducting wire manufactured according to the present invention, and FIGS. 5 and 6 are cross-sectional views of a conventional superconducting wire. It is a front view. 1... Superconducting oxide slurry, 2... Non-superconducting inorganic slurry, 3... Hopper, 4... Partition, 5
... Dinner chair, 6... Linear body, 7... Guide roll, 8... Heating furnace, 9... Roll, 10... Metal tape, 11... Superconducting oxide, 12... Non-superconducting inorganic substance, 13... Superconducting wire, 14... Metallic pipe, 15... Raw material powder.
Claims (1)
非超電導性無機物が酸化物系超電導体を取囲むように配
置し、該スラリーの自重または加圧により、ダイスを用
い該スラリーを押出して複合線とし、該複合線を加熱乾
燥した後減面加工を施し、次いで捻り加工を施しながら
外周に金属テープを巻回することを特徴とする超電導線
の製造方法。A slurry of an oxide superconductor and a non-superconducting inorganic substance is arranged so that the non-superconducting inorganic substance surrounds the oxide superconductor, and the slurry is extruded using a die using its own weight or pressure to form a composite wire. A method for manufacturing a superconducting wire, which comprises heating and drying the composite wire, subjecting it to area reduction processing, and then winding a metal tape around the outer periphery while subjecting it to twisting processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62073842A JP2547209B2 (en) | 1987-03-27 | 1987-03-27 | Superconducting wire manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62073842A JP2547209B2 (en) | 1987-03-27 | 1987-03-27 | Superconducting wire manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63239741A true JPS63239741A (en) | 1988-10-05 |
| JP2547209B2 JP2547209B2 (en) | 1996-10-23 |
Family
ID=13529796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62073842A Expired - Lifetime JP2547209B2 (en) | 1987-03-27 | 1987-03-27 | Superconducting wire manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2547209B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09185915A (en) * | 1987-02-05 | 1997-07-15 | Sumitomo Electric Ind Ltd | Manufacture of composite oxide ceramic superconducting wire |
| EP1187232A2 (en) * | 2000-08-29 | 2002-03-13 | Sumitomo Electric Industries, Ltd. | Oxide high-temperature superconducting wire and method of producing the same |
-
1987
- 1987-03-27 JP JP62073842A patent/JP2547209B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09185915A (en) * | 1987-02-05 | 1997-07-15 | Sumitomo Electric Ind Ltd | Manufacture of composite oxide ceramic superconducting wire |
| EP1187232A2 (en) * | 2000-08-29 | 2002-03-13 | Sumitomo Electric Industries, Ltd. | Oxide high-temperature superconducting wire and method of producing the same |
| EP1187232A3 (en) * | 2000-08-29 | 2005-06-29 | Sumitomo Electric Industries, Ltd. | Oxide high-temperature superconducting wire and method of producing the same |
| US7162287B2 (en) | 2000-08-29 | 2007-01-09 | Sumitomo Electric Industries, Ltd. | Oxide high-temperature superconducting wire and method of producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2547209B2 (en) | 1996-10-23 |
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