JPS63271820A - Manufacture of ceramic superconductive wire - Google Patents
Manufacture of ceramic superconductive wireInfo
- Publication number
- JPS63271820A JPS63271820A JP62107221A JP10722187A JPS63271820A JP S63271820 A JPS63271820 A JP S63271820A JP 62107221 A JP62107221 A JP 62107221A JP 10722187 A JP10722187 A JP 10722187A JP S63271820 A JPS63271820 A JP S63271820A
- Authority
- JP
- Japan
- Prior art keywords
- machining
- wire
- hydrostatic pressure
- ceramic
- tape
- 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
- 239000000919 ceramic Substances 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000000034 method Methods 0.000 claims abstract description 17
- 230000002706 hydrostatic effect Effects 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 9
- 239000002887 superconductor Substances 0.000 claims abstract description 8
- 230000001590 oxidative effect Effects 0.000 claims abstract description 4
- 238000000886 hydrostatic extrusion Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000005482 strain hardening Methods 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 5
- 229910002482 Cu–Ni Inorganic materials 0.000 abstract description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract 5
- 238000001125 extrusion Methods 0.000 abstract 3
- 229910009203 Y-Ba-Cu-O Inorganic materials 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910020012 Nb—Ti Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910000979 O alloy Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229910000657 niobium-tin Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002250 progressing effect Effects 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
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的１
（産業上の利用分野）
本発明は超電導線の′！Ａ造方法に係り、ビラミックス
系の超電導の製造方法に関する。[Detailed Description of the Invention] [Object of the Invention 1 (Field of Industrial Application) The present invention is directed to superconducting wires'! A manufacturing method relates to a method for manufacturing Viramix-based superconductors.
（従来の技術）
近年、特に昨年の４月以降、セラミックス系超電導体の
開発が世界中で進められている。この超？ｔｉｉ導体は
、従来の最高の臨界温度を示ｔＮｂ３Ｇｅの２３Ｋを大
巾に越えるもので、Ｂａ−Ｌａ−Ｃｕ−０系セラミツク
ス（臨界温度３５Ｋ ） 、Ｌａ−３ｒ−Ｃｕ−０系ヒ
ラミツクス（超電導開始温度３７に以上） 、Ｌａ−Ｃ
ａ−Ｃｕ−０系セラミツクス、Ｙ−Ｂａ−Ｃｕ−０系ヒ
ラミツクス（ゼロ抵抗温度９３）等のほか、本年に入っ
て ２３３Ｋ（１）臨界温度を示すセラミックスも報告
されている。(Prior Art) In recent years, especially since April last year, the development of ceramic superconductors has been progressing all over the world. This super? The TII conductor has the highest critical temperature of the conventional one, which far exceeds the 23K of tNb3Ge, and includes Ba-La-Cu-0 ceramics (critical temperature 35K), La-3r-Cu-0 ceramics (superconducting Temperature 37 or above), La-C
In addition to a-Cu-0 series ceramics, Y-Ba-Cu-0 series ceramics (zero resistance temperature 93), ceramics exhibiting a critical temperature of 233K (1) have been reported this year.
このようにセラミックス系超電導材料は臨界）ムｉ度が
液体窒素温度以上で用いることができる可能性があり、
この場合、高価な液体ヘリウムを使用しなくてもすむた
め、経汎的に極めて有利となるばか、超電導発電機等に
使用されると構造がシンプルで熱機閏の効率も向上する
等の利点を有する。In this way, it is possible that ceramic-based superconducting materials can be used at temperatures above the liquid nitrogen temperature.
In this case, there is no need to use expensive liquid helium, which is extremely advantageous from a general perspective, and when used in superconducting generators, etc., the structure is simple and the efficiency of the thermal machine is improved. have
しかしながら、セラミックスは硬くで、かつ脆いため、
現在実用化されているＮｂ−Ｔｉ系やＮｂ３Ｓｎ系の超
電導線のように線材に加工づることか困難であり、この
点を克服づ゛ることが実用化への第１歩となる。However, since ceramics are hard and brittle,
It is difficult to process them into wire rods like the Nb-Ti and Nb3Sn-based superconducting wires that are currently in practical use, and overcoming this point is the first step toward practical use.
現在線材の’１１込方法として、
■アモルファスのテープあるいは線材をｆｌ雰囲気下で
加熱処理−する方法、
０合金管（例えばＣｕ−Ｎｉ合金）の内部に原料の粉末
を充填し、両端を引張って線材やアープ状に成形する方
法、
■銅系合金管内にセラミックスを充填し、熱処理Ｊ３よ
び圧延加工等を施して線材やアープ状に成形する方法、
等が提案されている。Currently, there are 11 methods for wire rods: 1) Heat-treating amorphous tape or wire in a fl atmosphere; 0 alloy tube (for example, Cu-Ni alloy) is filled with raw material powder, and both ends are pulled. A method of forming into a wire rod or arc shape, ■ A method of filling a copper alloy tube with ceramics, applying heat treatment J3 and rolling processing, etc., and forming it into a wire rod or arc shape,
etc. have been proposed.
しかしながら上記■の方法では、極めて急速な冷却を必
要とするため、ＩＩｌ！Ｑや′ｉｊ膜のテープしか１！
Ｉられず、また長尺の線材を連続的に製造することが困
難であり、さらに、［記■の方法では長さ方向に頁って
均一な変形を加えることが困難であり、従って特性の均
一な長尺の線材を製造づることが困難であるという難点
を有する。However, method (2) above requires extremely rapid cooling, so IIl! Only Q and 'ij film tapes are available!
In addition, it is difficult to continuously produce long wire rods, and furthermore, with the method described in [2], it is difficult to apply uniform deformation in the length direction, and therefore the characteristics It has the disadvantage that it is difficult to manufacture a uniform long wire rod.
（発明が解決しようとする問題点）
本発明は、以上の難点を解決するためになされたもので
、ア１ｔルフ））ス化のための急速冷、ＩＪＩを必要と
Ｕず、かつ、長さ方向に亘って均一な変形をｍ ｔこと
ができ、これにより特性の安定したセラミックス系超電
導線を製造することのできる方法を提供することをその
［１的とする。(Problems to be Solved by the Invention) The present invention has been made to solve the above-mentioned difficulties. One object of the present invention is to provide a method capable of producing a ceramic superconducting wire with stable characteristics by achieving uniform deformation in the transverse direction.
［発明の構成］
（問題点を解決１°るための手段）
本発明のセラミックス超電導線の製造方法は、（イ）焼
結によりセラミックス系超電導体よりなるを生成する構
成材料よりなる原料粉末混合して弾性チューブ内に充填
する工程と、
（ロ）これに静水圧加Ｊ、Ｆを施して成形体を製）責り
る工程と、
（ハ）この成形体に静水圧押出加工を７１１！１引工程
と、（ニ）次いで、冷間加工を施して線条体に成形する
１：稈と、
（ホ）前記線条体に酸化性雰囲気中で熱処理を施すこと
によりセラミックス系超’Ｗｆ ｌ’Ａ体を生成づる工
程とからなることを特徴とする。[Structure of the Invention] (Means for Solving the Problems) The method for manufacturing a ceramic superconducting wire of the present invention includes (a) mixing raw material powders of constituent materials to produce a ceramic superconductor by sintering; (b) Applying hydrostatic pressure J and F to this to produce a molded body; (c) Hydrostatic extrusion processing to this molded body (711!). 1 drawing process, (d) then cold working to form a filament into a 1: culm, and (e) heat treatment of the filament in an oxidizing atmosphere to form a ceramic super-'Wf. The method is characterized by comprising a step of generating an l'A form.
（作 用）
本発明においては、予め粉末が静水圧加圧処理されるた
め、粉末を均一かつ高度に圧縮した状態で押出加工する
ことができる。また静水圧押出加工の採用により仝艮に
回り均一な変形が可能となる。最終的な冷間加工として
はスウ」、−ジング加工や圧延加工を採用することがで
きる。(Function) In the present invention, since the powder is subjected to hydrostatic pressure treatment in advance, the powder can be extruded in a uniform and highly compressed state. In addition, by using hydrostatic extrusion processing, uniform deformation is possible. As the final cold working process, it is possible to employ suction processing, rolling processing or rolling processing.
（実施例）
まず’ｆ、 ＢａおよびＣｕの粉末を所定ｍ配合し、こ
の粉体をゴムチューブ内に充填して、ｉｏ、 ０００ｋ
ｇ／ｃ７の圧力で３分間、静水圧加圧処理を施した。(Example) First, a predetermined m of 'f, Ba and Cu powders were mixed, this powder was filled into a rubber tube, and io, 000k
Hydrostatic pressure treatment was performed at a pressure of g/c7 for 3 minutes.
このようにして得られた成形体の寸法は２４ｍｍφ×長
さ １５０ｍｎ＋である。The dimensions of the molded body thus obtained were 24 mmφ x length 150 mm+.
この成形体を外径３５Ｉｌｌｌφ、内径２５ｍｍφのＣ
ｕ−Ｎ ｉ合金管に収容して、その両端を密封し押出ビ
レットを作製した。このビレットの２段の静水圧押出加
工を施して外径１８ｓ＋ｍφのロンドを作成した後、ス
ウェージング加工により外径３ｏ＋ａ＋φの線材とし、
次いでＪｆ延加工して幅５ｍ＋ａ、厚さ１ｍｍのアープ
を製造した。This molded body has an outer diameter of 35Illlφ and an inner diameter of 25mmφ.
It was housed in a u-Ni alloy tube, both ends of which were sealed to produce an extruded billet. This billet was subjected to two-stage hydrostatic extrusion processing to create a rond with an outer diameter of 18s+mφ, and then swaged into a wire rod with an outer diameter of 3o+a+φ.
Next, it was subjected to Jf rolling to produce an arp with a width of 5 m+a and a thickness of 1 mm.
このテープを酸化性雰囲気中で熱処理し、これにより採
取した試料をＸ線回析分析した結束Ｙ−Ｂａ−ＣＩ−０
系超電導体［（ＹＢａ２ ） Ｃｕ３０ ｘ ： ｘ＝
７１が確認された。This tape was heat treated in an oxidizing atmosphere, and the samples collected were analyzed by X-ray diffraction.
System superconductor [(YBa2) Cu30 x: x=
71 were confirmed.
［発明の効果１
以上述べたように本発明の方法によれば、線材あるいは
テープに加工困難なレラミックスμｍテ１１導体を、静
水圧加工処理および静水圧押出加工を施すことにより容
易に線材がテープ状に成形りることが可能になる。[Effects of the Invention 1] As described above, according to the method of the present invention, the Reramix μm Te11 conductor, which is difficult to process into a wire or tape, can be easily made into a wire by subjecting it to hydrostatic processing and hydrostatic extrusion. It becomes possible to form it into a tape shape.
出願人 昭和雷線電絶株式会着代理人 弁理
士 須 山 νｒ −
（ほか１名）Applicant Showa Raisen Denzetsu Co., Ltd. Representative Patent Attorney Suyama νr - (1 other person)
Claims (1)
する構成材料よりなる原料粉末を混合して、弾性チュー
ブ内に充填する工程と、 （ロ）これに静水圧加圧を施して成形体を製造する工程
と、 （ハ）この成形体に静水圧押出加工を施す工程と、（ニ
）次いで、冷間加工を施して線条体に成形する工程と、 （ホ）前記線条体に酸化性雰囲気中で熱処理を施すこと
によりセラミックス系超電導体を生成する工程とからな
ることを特徴とするセラミックス超電導線の製造方法。(1) (a) A process of mixing raw material powder made of constituent materials that produce a ceramic superconductor by sintering and filling it into an elastic tube, and (b) applying hydrostatic pressure to the mixture to form a molded product. (c) a step of subjecting the molded body to hydrostatic extrusion; (d) a step of then cold working to form it into a filament; (e) a step of forming the filament into a filament. 1. A method for manufacturing a ceramic superconducting wire, comprising the step of generating a ceramic superconductor by heat treatment in an oxidizing atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62107221A JPS63271820A (en) | 1987-04-30 | 1987-04-30 | Manufacture of ceramic superconductive wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62107221A JPS63271820A (en) | 1987-04-30 | 1987-04-30 | Manufacture of ceramic superconductive wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63271820A true JPS63271820A (en) | 1988-11-09 |
Family
ID=14453560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62107221A Pending JPS63271820A (en) | 1987-04-30 | 1987-04-30 | Manufacture of ceramic superconductive wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63271820A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01134810A (en) * | 1987-11-19 | 1989-05-26 | Fujikura Ltd | Oxide superconductor and its manufacture |
-
1987
- 1987-04-30 JP JP62107221A patent/JPS63271820A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01134810A (en) * | 1987-11-19 | 1989-05-26 | Fujikura Ltd | Oxide superconductor and its manufacture |
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