JPS63278210A - Manufacture of ceramic superconductive magnet - Google Patents
Manufacture of ceramic superconductive magnetInfo
- Publication number
- JPS63278210A JPS63278210A JP11333687A JP11333687A JPS63278210A JP S63278210 A JPS63278210 A JP S63278210A JP 11333687 A JP11333687 A JP 11333687A JP 11333687 A JP11333687 A JP 11333687A JP S63278210 A JPS63278210 A JP S63278210A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- ceramics
- spool
- wire
- flame
- 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 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000002887 superconductor Substances 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 8
- 239000011812 mixed powder Substances 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 12
- 238000005245 sintering Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 2
- 239000012212 insulator Substances 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 abstract description 9
- 239000003822 epoxy resin Substances 0.000 abstract description 4
- 229920000647 polyepoxide Polymers 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 229920003002 synthetic resin Polymers 0.000 abstract description 2
- 239000000057 synthetic resin Substances 0.000 abstract description 2
- 238000010304 firing Methods 0.000 abstract 2
- 229910009203 Y-Ba-Cu-O Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 238000010285 flame spraying Methods 0.000 abstract 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910020012 Nb—Ti Inorganic materials 0.000 description 1
- 229910010252 TiO3 Inorganic materials 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
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
Landscapes
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的コ
（産業上の利用分野）
本発明はセラミックス系超電導体を用いたマグネットの
製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Objective of the Invention (Field of Industrial Application) The present invention relates to a method of manufacturing a magnet using a ceramic superconductor.
（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
開発が世界中で急ピッチで進められている。この超電導
体は従来の最高の臨界温度を示すＮ１）３Ｇｅの２３Ｋ
を大巾に越えるもので、Ｂａ−Ｌａ−Ｃｕ−０系セラミ
ツクス（臨界湿度３５Ｋ）、Ｌａ−８ｒ−ＣＵ−０系セ
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系セ
ラミツクス（ゼロ抵抗温度９３Ｋ〉等のほか、本年に入
って２３３にの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 at a rapid pace all over the world. This superconductor has the highest critical temperature of N1)3Ge at 23K.
Ba-La-Cu-0 ceramics (critical humidity 35K), La-8r-CU-0 ceramics (superconductivity starting temperature 37 or higher), La-C
In addition to a-Cu-0 series ceramics, Y-Ba-Cu-0 series ceramics (zero resistance temperature 93K), and the like, ceramics exhibiting a critical temperature of 233 have been reported this year.
このようにセラミックス系超電導体材料は臨界温度が液
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
、経済的に極めて有利となるほか、超電導発電機等に使
用されると構造がシンプルで熱機関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 with a critical temperature higher than the liquid nitrogen temperature, and in this case, there is no need to use expensive liquid helium, which is extremely advantageous economically. When used in superconducting generators, etc., it has the advantage of a simple structure and improved heat engine efficiency.
しかしながら、セラミックスは硬くて、かつ脆いないた
め、現在実用化されているＮａ（ｉ系やＮａ ３ Ｓｎ
系超電導線のように曲げたり、あるいはコイル巻きする
ことができず、この点を克服することが実用化への第１
歩となる。However, since ceramics are hard and not brittle, the currently practical Na (i-based and Na 3 Sn
Unlike conventional superconducting wire, it cannot be bent or coiled, and overcoming this point is the first step toward practical application.
Ayumu becomes.
現在コイル形成方法として、
■アモルファスのテープあるいは線材のコイル巻きした
後、酸素雰囲気下で加熱処理する方法、■合金管（例え
ばＣＩ−Ｎ ｉ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テープ状とした後、コイルを形成す
る方法、
■銅系合金管内にセラミックスを充填し、熱処理および
圧延加工等を施して線材やテープ状とした後、コイルを
形成する方法、等が提案されている。Current coil forming methods include: 1. A method of winding an amorphous tape or wire into a coil and then heat-treating it in an oxygen atmosphere; 2. A method of filling raw material powder inside an alloy tube (for example, CI-N i alloy), A method of forming a coil after stretching it into a wire or tape shape, ■ A method of filling a copper alloy tube with ceramics, heat-treating and rolling it into a wire or tape shape, and then forming a coil, etc. is proposed.
現状では上記の方法で試作された線材の臨界密度は、実
用化されているＮｂ−Ｔｉ系やＮｂ３Ｓｎ系の超電導線
に比較して著しく小さく、これは線材化等の加工により
素材の性能が低下することによるためである。At present, the critical density of the wire prototyped using the above method is significantly lower than that of the Nb-Ti and Nb3Sn-based superconducting wires that are in practical use, and this is because the performance of the material deteriorates when processed to make it into a wire. This is because it depends on what you do.
（発明が解決しようとする問題点）
本発明は上記の難点を解消するためになされたもので、
線材を用いずに巻枠上に直接コイルを形成することによ
り、線材化の困難なセラミックスの難点を克服するとと
もに、線材化に伴う超電導特性の低下を併せて防止した
超電導マグネットの製造方法を提供することをその目的
とする。(Problems to be solved by the invention) The present invention has been made to solve the above-mentioned difficulties.
Provides a method for manufacturing superconducting magnets that overcomes the difficulties of ceramics, which are difficult to make into wires, by forming coils directly on the winding frame without using wires, and also prevents deterioration in superconducting properties that would be caused by making wires. Its purpose is to.
［発明の構成］
（問題点を解決するための手段）
本発明のセラミックス系超電導マグネットの製造方法は
、
（イ）円筒状の巻枠の外周に線条体をソレノイド状に巻
回する工程と、
（ロ）前記巻枠の外周に焼結によりセラミックス系超電
導体を生成する構成材料よりなる混合粉体を溶射する工
程と、
（ハ）前記線条体を除去する工程と、
（ニ）熱処理を施して前記巻枠外周の溶射粉体を焼結し
て超電導体を生成する工程と、
（ホ）前記線状体の除去部分に絶縁体を充填する工程と
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 magnet of the present invention includes the steps of: (a) winding a filament around the outer periphery of a cylindrical winding frame in a solenoid shape; (b) a step of thermally spraying a mixed powder made of constituent materials that produce a ceramic superconductor by sintering on the outer periphery of the winding frame; (c) a step of removing the filament; (d) heat treatment. and (e) filling the removed portion of the linear body with an insulator.
（作 用）
本発明においては巻枠外周に、焼結することによりセラ
ミックス系超電導体を生成ブる混合粉末をソレノイド状
に溶射してコイルを形成するため、硬く、かつ脆いセラ
ミックスの線材化の困難が回避し得るだけでなく、焼結
する際の熱処理も大気中で施すことができ、線材化した
場合の熱処理時の酸素の供給が困難である問題点も一挙
に解決することができる。(Function) In the present invention, since a coil is formed by spraying a mixed powder that produces a ceramic superconductor by sintering onto the outer periphery of the winding frame in a solenoid shape, it is possible to form a coil from hard and brittle ceramics. Not only can the difficulties be avoided, but the heat treatment during sintering can also be performed in the atmosphere, and the problem of difficulty in supplying oxygen during heat treatment when made into a wire can be solved at once.
（実施例） 以下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.
まず第２図に示すように、金属円筒の外周にセラミック
ス（例えば３ｒ Ｔｉ Ｏ３等）を溶射した、あるいは
セラミックスよりなる円筒状の巻枠１の外周に線状のス
ペーサ２をソレノイド状に巻回する。このスペーサは可
撓性を有するものであればよく、例えば金属や合成樹脂
からなる平角形状の線材を用いることができる。First, as shown in Fig. 2, a linear spacer 2 is wound in a solenoid shape around the outer periphery of a cylindrical winding frame 1, which is made of a cylindrical winding frame 1, which is made of ceramics (for example, 3R TiO3) sprayed on the outer periphery of a metal cylinder. do. This spacer only needs to be flexible, and for example, a rectangular wire made of metal or synthetic resin can be used.
次に、焼結により超電導セラミックスを生成するＹ、Ｂ
ａ 、ＣＵ等の混合粉体３を第３図に示すように、上記
の巻枠外より全面に溶射する。Next, Y and B produce superconducting ceramics by sintering.
a. As shown in FIG. 3, a mixed powder 3 such as CU is thermally sprayed onto the entire surface from outside the above-mentioned winding frame.
その後、スペーサ２を巻枠１から除去することにより、
第４図に示すように、巻枠１の外周に上記の粉体３がソ
レノイド状に溶射されたコイル４を得る。このコイル４
を大気中で熱処理して粉体３を焼結してＹ −Ｂａ−Ｃ
ｕ−０の超電導体を生成した後、コイルを円筒状容器内
に収容して、コイル外周と円筒状容器の間隙にエポキシ
樹脂を充填し、次いでこれを硬化せしめる。After that, by removing the spacer 2 from the winding frame 1,
As shown in FIG. 4, a coil 4 is obtained in which the powder 3 described above is sprayed in a solenoid shape on the outer periphery of a winding frame 1. This coil 4
is heat-treated in the atmosphere to sinter the powder 3 to form Y-Ba-C
After producing the u-0 superconductor, the coil is housed in a cylindrical container, and the gap between the outer periphery of the coil and the cylindrical container is filled with epoxy resin, which is then cured.
円筒状容器から取り出して得られたマグネット５の構造
を第１図に示す。このマグネット５においては、巻枠１
の外周に超電導セラミックスよりなるソレノイドコイル
６が形成され、このコイル間の絶縁層と外側の補強層と
をエポキシ樹脂の硬化層７が形成している。The structure of the magnet 5 obtained by taking it out from the cylindrical container is shown in FIG. In this magnet 5, the winding frame 1
A solenoid coil 6 made of superconducting ceramics is formed on the outer periphery of the coil, and a hardened layer 7 of epoxy resin forms an insulating layer between the coils and an outer reinforcing layer.
なお図中符号８はステンレス補強層である。Note that the reference numeral 8 in the figure is a stainless steel reinforcing layer.
［発明の効果］
以上述べたように本発明によるセラミックス系超電導マ
グネットの製造方法によれば、溶射により直接コイルを
形成した後、焼結により超電導体を生成するため、線材
加工の困難さや、線材加工時の超電導特性の低下の問題
点が同時に回避する− 〇 −
ことができる上、その方法も簡単である利点を有する。[Effects of the Invention] As described above, according to the method for manufacturing a ceramic superconducting magnet according to the present invention, a coil is directly formed by thermal spraying, and then a superconductor is produced by sintering. The problem of deterioration of superconducting properties during processing can be avoided at the same time, and the method has the advantage of being simple.
第１図は本発明の方法により製造されたマグネットの断
面図、第２図はないし第４図はその製造工程を示す側面
図であり、第２図はスペーサ巻回後の状態を示す側面図
、第３図は粉体溶射後の状態を示す側面図、第４図はス
ペーサ除去後の状態を示す側面図である。
１・・・・・・・・・巻枠
２・・・・・・・・・スペーサ
３・・・・・・・・・粉体
４・・・・・・・・・コイル
５・・・・・・・・・マグネット
６・・・・・・・・・ソレノイドコイル７・・・・・・
・・・エポキシ樹脂硬化層出願人 昭和電線電
纜株式会社代理人 弁理士 須 山 佐 −
（ほか１名）
を
第１図
ｊ！！２図FIG. 1 is a sectional view of a magnet manufactured by the method of the present invention, FIGS. 2 to 4 are side views showing the manufacturing process, and FIG. 2 is a side view showing the state after spacer winding. , FIG. 3 is a side view showing the state after powder spraying, and FIG. 4 is a side view showing the state after spacer removal. 1...... Winding frame 2... Spacer 3... Powder 4... Coil 5...・・・・・・Magnet 6・・・・・・Solenoid coil 7・・・・・・
...Epoxy resin hardened layer Applicant Showa Cable and Wire Co., Ltd. Representative Patent Attorney Sasa Suyama - (and 1 other person) in Figure 1j! ! Figure 2
Claims (1)
状に巻回する工程と、 （ロ）前記巻枠の外周に焼結によりセラミックス系超電
導体を生成する構成材料よりなる混合粉体を溶射する工
程と、 （ハ）前記線条体を除去する工程と、 （ニ）熱処理を施して前記巻枠外周の溶射粉体を焼結し
て超電導体を生成する工程と、 （ホ）前記線条体の除去部分に絶縁体を充填する工程と
からなることを特徴とするセラミックス系超電導マグネ
ットの製造方法。(1) (a) A step of winding a filament in a solenoid shape around the outer periphery of a cylindrical winding frame, and (b) a constituent material that produces a ceramic superconductor by sintering on the outer periphery of the winding frame. a step of thermally spraying the mixed powder; (c) a step of removing the filament; (d) a step of applying heat treatment to sinter the thermally sprayed powder on the outer periphery of the winding frame to produce a superconductor; (e) A method for manufacturing a ceramic superconducting magnet, comprising the step of filling the removed portion of the filament with an insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11333687A JPS63278210A (en) | 1987-05-08 | 1987-05-08 | Manufacture of ceramic superconductive magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11333687A JPS63278210A (en) | 1987-05-08 | 1987-05-08 | Manufacture of ceramic superconductive magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63278210A true JPS63278210A (en) | 1988-11-15 |
Family
ID=14609660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11333687A Pending JPS63278210A (en) | 1987-05-08 | 1987-05-08 | Manufacture of ceramic superconductive magnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63278210A (en) |
-
1987
- 1987-05-08 JP JP11333687A patent/JPS63278210A/en active Pending
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