JP2511320Y2 - Oxide high temperature superconductor manufacturing equipment - Google Patents
Oxide high temperature superconductor manufacturing equipmentInfo
- Publication number
- JP2511320Y2 JP2511320Y2 JP1989142842U JP14284289U JP2511320Y2 JP 2511320 Y2 JP2511320 Y2 JP 2511320Y2 JP 1989142842 U JP1989142842 U JP 1989142842U JP 14284289 U JP14284289 U JP 14284289U JP 2511320 Y2 JP2511320 Y2 JP 2511320Y2
- Authority
- JP
- Japan
- Prior art keywords
- high temperature
- oxide high
- fired body
- temperature superconductor
- firing
- 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.)
- Expired - Lifetime
Links
- 239000002887 superconductor Substances 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000010304 firing Methods 0.000 claims description 14
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 4
- 229910001882 dioxygen Inorganic materials 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000005484 gravity Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical group O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
- Superconductor Devices And Manufacturing Methods Thereof (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Compositions Of Oxide Ceramics (AREA)
Description
【考案の詳細な説明】 〈産業上の利用分野〉 本考案は酸化物高温超伝導体の製造装置に係り、特に
円筒型の形状を正確に焼成する改良に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to an apparatus for producing an oxide high temperature superconductor, and more particularly to an improvement for accurately firing a cylindrical shape.
〈従来の技術〉 超伝導体は完全反磁性を有しているので、静電シール
ドや磁気シールドに用いて好適である。この様な用途で
は、円筒形状をしていることが使用に当って好ましい。<Prior Art> Since a superconductor has perfect diamagnetism, it is suitable for use as an electrostatic shield or a magnetic shield. In such an application, it is preferable to have a cylindrical shape for use.
〈考案が解決しようとする課題〉 第５図は焼成された円筒体の斜視図で、（Ａ）は合格
品、（Ｂ）は断面が楕円形に変形したもの、（Ｃ）は軸
方向に屈曲したものである。一般に、酸化物高温超伝導
体を焼成する際に、重力や形成体の不均一性により断面
を正確に円形に保持することや軸方向に真直ぐにするこ
とは困難である。しかし正確な円筒形の超伝導体を焼成
することが、産業利用上不可欠である。<Problems to be solved by the invention> FIG. 5 is a perspective view of a fired cylindrical body, (A) is an acceptable product, (B) is an oval-shaped cross section, and (C) is an axial direction. It is a bent one. Generally, when firing an oxide high-temperature superconductor, it is difficult to keep the cross section in an accurate circular shape or to straighten it in the axial direction due to gravity and nonuniformity of the formed body. However, accurate firing of a cylindrical superconductor is essential for industrial use.
本考案はこのような課題を解決したもので、真直ぐで
正確な円形断面の円筒体をした酸化物高温超伝導体を焼
成する装置を提供することを目的とする。The present invention solves such a problem, and an object of the present invention is to provide an apparatus for firing an oxide high temperature superconductor having a cylindrical body having a straight and accurate circular cross section.
〈課題を解決するための手段〉 このような目的を達成する本考案は、略円筒形の酸化
物高温超伝導体よりなる焼成体10と、この焼成体よりも
大きな内径を有する炉体21と、この炉体内部を焼成温度
まで加熱するヒータ30と、この焼成体の外径よりも僅か
に大きな内径を有する円筒容器52と、この円筒容器とシ
ャフト51を介して接続されたモータ40と、この炉体内部
に酸素ガスを焼成中に供給する手段50とを備える酸化物
高温超伝導体の焼成装置において、前記モータが前記円
筒容器を回動させる角速度ωは、前記焼成体の円筒半径
ｒと重力加速度ｇに対して、次の関係式： ω＞＞(g/r)1/2 を充足することを特徴とするものである。<Means for Solving the Problems> The present invention to achieve such an object is to provide a fired body 10 made of a substantially cylindrical oxide high temperature superconductor, and a furnace body 21 having an inner diameter larger than that of the fired body. , A heater 30 for heating the inside of the furnace body to a firing temperature, a cylindrical container 52 having an inner diameter slightly larger than the outer diameter of the fired body, and a motor 40 connected to the cylindrical container via a shaft 51, In the apparatus for firing an oxide high temperature superconductor, which comprises means 50 for supplying oxygen gas into the furnace body during firing, the angular velocity ω at which the motor rotates the cylindrical container is determined by the cylinder radius r of the fired body. And gravitational acceleration g, the following relational expression: ω >> (g / r) 1/2 is satisfied.
〈作用〉 本考案の各構成要素はつぎの作用をする。炉体はヒー
タにより加熱されて焼成体を焼成する。回動手段は焼成
中の焼成体を回転させて、重力の影響に起因して焼成体
が変形するのを防止している。ガス供給手段は焼成体が
高温超伝導体としての特性を有するように雰囲気を醸し
出す。<Operation> Each component of the present invention has the following operation. The furnace body is heated by the heater to burn the fired body. The rotating means rotates the fired body during firing to prevent the fired body from being deformed due to the influence of gravity. The gas supply means creates an atmosphere so that the fired body has characteristics as a high temperature superconductor.
〈実施例〉 以下図面を用いて、本考案を説明する。<Example> Hereinafter, the present invention will be described with reference to the drawings.
第１図は本考案の技術的思想を説明する構成図であ
る。図において、焼成体10は略円筒形の酸化物高温超伝
導体（イットリウム系、ビスマス系又はタリウム系等の
材料）よりなる。炉体20はアルミナや石英などの耐高温
性を有する材料よりなり、円筒形をした内部の径は焼成
体10の外径よりも大きくなっている。ヒータ30は炉体20
の内部を所定の焼成温度（例えば900℃程度）まで加熱
するもので、ここでは炉体20の外周に配置してある。モ
ータ40はシャフト41を角速度ωで回転させるもので、シ
ャフト41は炉体20と同軸に固定されているから、結局炉
体20を回転させている。ガス供給装置50は炉体20の内部
に酸素ガス若しくは窒素やアルゴン等の不活性ガスと酸
素ガスを混合したガスを供給するもので、焼成体10と反
応して酸化物高温超伝導体となる原料を供給している。FIG. 1 is a block diagram for explaining the technical idea of the present invention. In the figure, a fired body 10 is made of a substantially cylindrical oxide high temperature superconductor (yttrium-based, bismuth-based or thallium-based material). The furnace body 20 is made of a material having high temperature resistance such as alumina or quartz, and the inner diameter of the cylindrical shape is larger than the outer diameter of the fired body 10. The heater 30 is the furnace body 20
The inside of the furnace is heated to a predetermined firing temperature (for example, about 900 ° C.), and is arranged on the outer circumference of the furnace body 20 here. The motor 40 rotates the shaft 41 at an angular velocity ω. Since the shaft 41 is fixed coaxially with the furnace body 20, the furnace body 20 is eventually rotated. The gas supply device 50 supplies oxygen gas or a mixed gas of oxygen gas and an inert gas such as nitrogen or argon to the inside of the furnace body 20, and reacts with the fired body 10 to become an oxide high temperature superconductor. Supplying raw materials.
このように構成された装置の動作を次に説明する。第
２図は第１図の装置の要部断面図である。炉体20が矢印
（時計方向）に回転しているので、焼成体10も同一方向
に回転する。焼成体10の微小部分を考えると、この部
分の質量をｍとすれば重力ｆによる力は次式で与えられ
る。The operation of the apparatus thus configured will be described below. FIG. 2 is a sectional view of the main part of the apparatus shown in FIG. Since the furnace body 20 rotates in the arrow (clockwise direction), the fired body 10 also rotates in the same direction. Considering a minute portion of the fired body 10, if the mass of this portion is m, the force due to gravity f is given by the following equation.
ｆ＝mg （１） ここで、ｇは重力加速度である。そこで、一回転する間
の微小時間dtに働く力積はfdtとなる。次にこの微小部
分を基準とした座標系（X-Y）を考えると、一回転す
る間に重力ｆも一回転するから、この間の力積を積分す
ると、次式となる。f = mg (1) where g is the gravitational acceleration. Therefore, the impulse acting on the minute time dt during one rotation is fdt. Next, considering the coordinate system (XY) with this minute portion as a reference, the gravity f also makes one revolution during one revolution, so integrating the impulse during this period gives the following equation.
fdt＝０ （２） この結果、等価的に重力の影響を受けずに焼成すること
ができ、断面が楕円形になるなどの事態を防止できる。fdt = 0 (2) As a result, firing can be equivalently performed without being affected by gravity, and a situation in which the cross section becomes elliptical can be prevented.
第３図は本考案の一実施例を示す構成斜視図である。
シャフト51はモータ40と接続されており、他端は円筒容
器52と接続されている。円筒容器52の内径は焼成体10の
外径より僅かに大きくなっており、焼成体10はこの内側
で焼成される。円筒容器52の外周には炉体21が配置され
ている。ここでのモータ40の発生する角速度ωは比較的
大きなものとする。FIG. 3 is a configuration perspective view showing an embodiment of the present invention.
The shaft 51 is connected to the motor 40, and the other end is connected to the cylindrical container 52. The inner diameter of the cylindrical container 52 is slightly larger than the outer diameter of the fired body 10, and the fired body 10 is fired inside this. The furnace body 21 is arranged on the outer periphery of the cylindrical container 52. The angular velocity ω generated by the motor 40 here is assumed to be relatively large.
このように構成された装置の動作を次に説明する。第
４図は第３図の装置の要部断面図である。焼成体10の微
小部分に付いて考察する。この部分の回転中心から
の半径をｒ、質量をｍとすれば、重力はmg、遠心力Ｆは
次式で与えられる。The operation of the apparatus thus configured will be described below. FIG. 4 is a sectional view of the main part of the apparatus shown in FIG. A minute portion of the fired body 10 will be considered. If the radius from the center of rotation of this part is r and the mass is m, gravity is mg and centrifugal force F is given by the following equation.
Ｆ＝mrω2 （３） 実際に作用する力Ｆ′は、重力ｆと遠心力Ｆのベクト
ル和となる。ここで、角速度ωを次式が成立するように
選定する。F = mrω 2 (3) The force F ′ that actually acts is the vector sum of gravity f and centrifugal force F. Here, the angular velocity ω is selected so that the following equation holds.
すると、遠心力は重力に比較してずっと大きくなるから
（Ｆ＞＞mg）、合力Ｆ′は遠心力Ｆで定まり、重力の影
響を無視できるようになる。 Then, since the centrifugal force becomes much larger than the gravity (F >> mg), the resultant force F ′ is determined by the centrifugal force F, and the influence of the gravity can be ignored.
〈考案の効果〉 以上説明したように、本考案によれば焼成体10を回転
させて重力の影響を軽減させているので、焼成中に焼成
体10の変形する虞がなくなり、正確な形状の製品が製造
できるという実用上の効果がある。<Effect of Device> As described above, according to the present invention, since the effect of gravity is reduced by rotating the fired body 10, there is no risk of the fired body 10 being deformed during firing, and the accurate shape of the fired body 10 is eliminated. There is a practical effect that the product can be manufactured.
第１図は本考案の技術的思想を説明する構成図、第２図
は第１図の装置の要部断面図、第３図は本考案の一実施
例を示す構成斜視図、第４図は第３図の装置の要部断面
図である。第５図は焼成された円筒体の斜視図である。 10……焼成体、20,21……炉体、30……ヒータ、40……
モータ（回動手段）、41,50,51……シャフト。FIG. 1 is a block diagram for explaining the technical idea of the present invention, FIG. 2 is a cross-sectional view of an essential part of the apparatus of FIG. 1, FIG. 3 is a perspective view of a configuration showing an embodiment of the present invention, and FIG. FIG. 4 is a sectional view of an essential part of the device shown in FIG. FIG. 5 is a perspective view of a fired cylinder. 10 …… fired body, 20,21 …… furnace body, 30 …… heater, 40 ……
Motors (rotating means), 41, 50, 51 ... Shafts.
Claims (1)
成体（10）と、この焼成体よりも大きな内径を有する炉
体（21）と、この炉体内部を焼成温度まで加熱するヒー
タ（30）と、この焼成体の外径よりも僅かに大きな内径
を有する円筒容器（52）と、この円筒容器とシャフト
（51）を介して接続されたモータ（40）と、この炉体内
部に酸素ガスを焼成中に供給する手段（50）とを備える
酸化物高温超伝導体の焼成装置において、 前記モータが前記円筒容器を回動させる角速度（ω）
は、前記焼成体の円筒半径（ｒ）と重力加速度（ｇ）に
対して、次の関係式： ω＞＞(g/r)1/2 を充足することを特徴とする酸化物高温超伝導体の焼成
装置。1. A fired body (10) made of a substantially cylindrical oxide high temperature superconductor, a furnace body (21) having an inner diameter larger than that of the fired body, and heating the inside of the furnace body to a firing temperature. The heater (30), a cylindrical container (52) having an inner diameter slightly larger than the outer diameter of the fired body, a motor (40) connected to the cylindrical container via a shaft (51), and the furnace body. In an apparatus for firing an oxide high temperature superconductor, which is provided with a means (50) for supplying oxygen gas inside during firing, an angular velocity (ω) at which the motor rotates the cylindrical container.
Is an oxide high temperature superconducting material characterized by satisfying the following relational expression: ω >> (g / r) 1/2 with respect to the cylindrical radius (r) and gravitational acceleration (g) of the fired body. Body baking equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989142842U JP2511320Y2 (en) | 1989-12-11 | 1989-12-11 | Oxide high temperature superconductor manufacturing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989142842U JP2511320Y2 (en) | 1989-12-11 | 1989-12-11 | Oxide high temperature superconductor manufacturing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0380926U JPH0380926U (en) | 1991-08-19 |
| JP2511320Y2 true JP2511320Y2 (en) | 1996-09-25 |
Family
ID=31689651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989142842U Expired - Lifetime JP2511320Y2 (en) | 1989-12-11 | 1989-12-11 | Oxide high temperature superconductor manufacturing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2511320Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5837751B2 (en) * | 2011-02-03 | 2015-12-24 | 昭和電線ケーブルシステム株式会社 | Tape-like oxide superconducting wire manufacturing method and heat treatment apparatus |
| JP5881953B2 (en) * | 2011-02-03 | 2016-03-09 | 公益財団法人国際超電導産業技術研究センター | Tape-like oxide superconducting wire manufacturing method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01270504A (en) * | 1988-04-18 | 1989-10-27 | Hitachi Chem Co Ltd | Production of superconducting material |
-
1989
- 1989-12-11 JP JP1989142842U patent/JP2511320Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0380926U (en) | 1991-08-19 |
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