JPS62277704A - Manufacture of superconducting sheet coil - Google Patents
Manufacture of superconducting sheet coilInfo
- Publication number
- JPS62277704A JPS62277704A JP61120428A JP12042886A JPS62277704A JP S62277704 A JPS62277704 A JP S62277704A JP 61120428 A JP61120428 A JP 61120428A JP 12042886 A JP12042886 A JP 12042886A JP S62277704 A JPS62277704 A JP S62277704A
- Authority
- JP
- Japan
- Prior art keywords
- superconducting
- substrate
- groove
- circuit
- laminate
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 229910000765 intermetallic Inorganic materials 0.000 claims abstract description 18
- 238000009792 diffusion process Methods 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims description 28
- 239000002184 metal Substances 0.000 claims description 24
- 239000000654 additive Substances 0.000 claims description 9
- 230000000996 additive effect Effects 0.000 claims description 9
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- 229910052735 hafnium Inorganic materials 0.000 claims description 2
- 239000002887 superconductor Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 229910052738 indium Inorganic materials 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 229910052726 zirconium Inorganic materials 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 abstract description 10
- 239000000956 alloy Substances 0.000 abstract description 10
- 238000003466 welding Methods 0.000 abstract description 8
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 abstract description 7
- 238000005304 joining Methods 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 abstract description 4
- 229910017755 Cu-Sn Inorganic materials 0.000 abstract description 3
- 229910017927 Cu—Sn Inorganic materials 0.000 abstract description 3
- 238000010894 electron beam technology Methods 0.000 abstract description 3
- 229910052758 niobium Inorganic materials 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 abstract 1
- 238000007669 thermal treatment Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 18
- 238000007796 conventional method Methods 0.000 description 10
- 239000010949 copper Substances 0.000 description 6
- 229910000657 niobium-tin Inorganic materials 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000002360 explosive Substances 0.000 description 5
- 229910000906 Bronze Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000010974 bronze Substances 0.000 description 4
- 229910052718 tin Inorganic materials 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 229910020012 Nb—Ti Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000000126 substance Substances 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
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
-
- 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
- Windings For Motors And Generators (AREA)
- Manufacture Of Motors, Generators (AREA)
- Superconductive Dynamoelectric Machines (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、核融合トロイダルマグネット、粒子加速器用
マグネット、超電導発電機用マグネット等に使用され、
特に、高磁界域において高い臨界電流特性を発揮する超
電導シートコイルを製造する方法に関する乙のである。[Detailed Description of the Invention] "Industrial Application Field" The present invention is used for nuclear fusion toroidal magnets, particle accelerator magnets, superconducting generator magnets, etc.
In particular, this article relates to a method for manufacturing a superconducting sheet coil that exhibits high critical current characteristics in a high magnetic field region.
「従来の技術」
Ｎｂ３Ｓｎ超電導金属間化合物等の超電導導体において
、Ｔｉ等の第３元素を添加することにより高磁界域にお
ける臨界電流特性を向上できることが知られている。"Prior Art" It is known that critical current characteristics in a high magnetic field region can be improved by adding a third element such as Ti to a superconducting conductor such as a Nb3Sn superconducting intermetallic compound.
、そして従来、前述の超電導導体かみなる回路を有する
超電導シートコイルを製造する方法として、第６図と第
７図を基に以下に説明する２つの方法が知られている。Conventionally, two methods described below based on FIGS. 6 and 7 are known as methods for manufacturing a superconducting sheet coil having a circuit made up of the above-mentioned superconducting conductors.
第１の従来方法は、ＣｕあるいはＣｕ−９ｎ合金からな
る第６図に示す基数１と、Ｔｉを添加したＮｂ−Ｔｉ合
金からなる金属板２とを爆発圧接等の接合手段を用いて
接合し、更に、圧延加工を施して所要厚さの積層板を構
成し、この積層板に拡散熱処理と回路形成処理を後述す
る如く施してＮｂ３Ｓｎ超電導金属間化合物回路を有す
る超電導シートコイルを製造する方法である。The first conventional method is to join base number 1 shown in FIG. 6 made of Cu or Cu-9n alloy to metal plate 2 made of Nb-Ti alloy added with Ti using a joining means such as explosive welding. Further, in a method of manufacturing a superconducting sheet coil having a Nb3Sn superconducting intermetallic compound circuit by performing rolling processing to form a laminate of a required thickness, and subjecting this laminate to diffusion heat treatment and circuit forming treatment as described later. be.
ところで従来、拡散熱処理と回路形成処理を実施してＮ
ｂｚ Ｓ ｎ超電導金属間化合物回路を形成する具体
的方法として知られているのは、積層板の全体に拡散熱
処理を施してＮｂ、Ｓｎ超電導金属間化合物層を生成さ
せ・、この後に、積層板に形成すべき回路パターンの周
囲部分を切削して除去し、回路パターンに沿ってＮｂ５
Ｓｎ超電導金属間化合物層を残すことにより超電導回路
を形成する方法、あるいは、形成する予定の回路パター
ンの周囲部分を拡散熱処理以前に切削して除去した後に
拡散熱処理を施し、回路パターンに沿ってＮｂ５Ｓｎ超
電導金属間化合物層を生成させて超電導回路を形成する
方法である。By the way, in the past, diffusion heat treatment and circuit formation treatment were performed to
A known specific method for forming a bz S n superconducting intermetallic compound circuit is to apply diffusion heat treatment to the entire laminate to generate a Nb, Sn superconducting intermetallic compound layer; The surrounding part of the circuit pattern to be formed is cut and removed, and Nb5 is applied along the circuit pattern.
A method of forming a superconducting circuit by leaving a Sn superconducting intermetallic compound layer, or a method in which the surrounding area of the circuit pattern to be formed is cut and removed before diffusion heat treatment, and then diffusion heat treatment is performed to form Nb5Sn along the circuit pattern. This is a method of forming a superconducting circuit by generating a superconducting intermetallic compound layer.
第２の従来方法は、Ｔｉ等の第３元素を添加したＣｕま
たはＣｕ−５ｎ合金からなる第７図に示す基板３に、Ｎ
ｂからなる金属板４を爆発圧接等の接合手段を用いて接
合し、更に圧延加工を施して所要厚さの積層板を構成し
、この積層板に前述の如く拡散熱処理と回路形成処理を
施してＮｂ３Ｓｎ超電導金属間化合物回路を有する超電
導ソートコイルを製造する方法である。The second conventional method is to add N to a substrate 3 shown in FIG.
The metal plates 4 made of B are joined using a joining means such as explosive welding, and further rolled to form a laminate of the required thickness, and this laminate is subjected to diffusion heat treatment and circuit forming treatment as described above. This is a method for manufacturing a superconducting sort coil having a Nb3Sn superconducting intermetallic compound circuit.
「発明が解決しようとする問題点」
前記第１の従来方法において、Ｔｉ等の活性な第３元素
を添加した金属板２を製造するためには、第３元素を添
加するために電子ビーム溶解、あるいは、アーク溶解等
の特別な溶解法を用いる必要があるとともに、添加する
第３元素量が２ｗｔ％程度の微量であるために、第３元
素を均一に添加できない問題があった。また、Ｔｉを添
加して製造した金属板２は、加工硬化が著しく、均一な
加工が困難な問題がある。"Problems to be Solved by the Invention" In the first conventional method, in order to manufacture the metal plate 2 to which an active third element such as Ti is added, electron beam melting is required to add the third element. Alternatively, it is necessary to use a special melting method such as arc melting, and the amount of the third element to be added is as small as about 2 wt %, so there is a problem that the third element cannot be added uniformly. Further, the metal plate 2 manufactured by adding Ti has a problem that work hardening is significant and uniform processing is difficult.
一方、第２の従来方法において、第３元素を添加したＣ
ｕまたはＣｕ−５ｎ合金からなる基板３を製造する場合
には、合金作成時に溶解工程が必要となるとともに、添
加する第３元素量が１ｗｔ％程度の微量であるために、
第３元素を均一に添加できない問題がある。また、Ｔｉ
を添加して製造した金属板３は加工硬化が著しいために
、後に行う圧延加工において、中間焼鈍処理を繰り返し
行う必要を生じて縮径加工工程が複雑化する問題があっ
た。On the other hand, in the second conventional method, C
When manufacturing the substrate 3 made of u or Cu-5n alloy, a melting process is required during alloy creation, and the amount of the third element added is a small amount of about 1 wt%.
There is a problem that the third element cannot be added uniformly. Also, Ti
Since the metal plate 3 manufactured by adding the .
本発明は、前記問題に鑑みてなされたもので、高磁界域
における臨界電流特性に優れ、加工が容易であるとと乙
に、添加する第３元素の量を自由に制御できる化合物系
超電導シートコイルの製造方法を提供することを目的と
する。The present invention has been made in view of the above problems, and is a compound-based superconducting sheet that has excellent critical current characteristics in a high magnetic field region, is easy to process, and can freely control the amount of a third element added. The purpose of the present invention is to provide a method for manufacturing a coil.
「問題点を解決するための手段」
本発明は、前記問題点を解決するために、超電導金属間
化合物を構成する２つ以上の金属元素のうち、少なくと
も１つを含有する基板と、前記金属元素のうち、残りの
金属元素を含有する金属板とを重ねて積層板を構成し、
この債層仮に超電導金属間化合物を生成させろ拡散熱処
理と回路形成処理を施して超電導シートコイルを製造す
る方法において、前記超電導金属間化合物の高磁界域に
おける臨界電流特性を向トさせるＴｉ、Ｔａ、Ｈｆ、Ｉ
ｎ５ＳｉＳＡｌ、Ｚｒ等の第３元素のうち、少なくとも
１種の元素からなる添加部材を用意し、前記基板と金属
板の間に前記添加部材を配して積層板を形成するととも
に、この積層板に拡散熱処理と回路形成処理を施して超
電導金属間化合物からなる超電導回路を生成するもので
ある。"Means for Solving the Problems" In order to solve the problems, the present invention provides a substrate containing at least one of two or more metal elements constituting a superconducting intermetallic compound, and a substrate containing the metal A laminate is formed by stacking metal plates containing the remaining metal elements among the elements,
In this method of manufacturing a superconducting sheet coil by generating a superconducting intermetallic compound and subjecting it to diffusion heat treatment and circuit forming treatment, Ti, Ta, which alters the critical current characteristics of the superconducting intermetallic compound in a high magnetic field region, Hf,I
An additive member made of at least one type of third element such as n5SiSAl, Zr, etc. is prepared, and the additive member is placed between the substrate and the metal plate to form a laminate, and the laminate is subjected to diffusion heat treatment. A superconducting circuit made of a superconducting intermetallic compound is produced by performing a circuit forming process.
「作用」
第３元素を添加していない状態の基板と金属板を加工で
きるために、加工性が向上するとともに、添加部材の第
３元素が拡散熱処理により拡散して高磁界域における臨
界電流特性を向上させるとともに、添加部材の直径や厚
みを調節することによって添加する第３元素量を所望の
値に制御できる。"Function" Since it is possible to process substrates and metal plates without the addition of a third element, processability is improved, and the third element in the additive member is diffused by diffusion heat treatment, resulting in critical current characteristics in high magnetic field regions. In addition, by adjusting the diameter and thickness of the additive member, the amount of the third element added can be controlled to a desired value.
「実施例」
第１図ないし第４図は、本発明方法をＮｂｚＳｎ超電導
回路を有するシートコイルの製造に適用した一実施例を
説明するためのもので、シートコイルを製造するには、
まず、第１図に示すＮｂからなる堰板１０の表面に、形
成すべき回路パターンと同一平面形状の溝１１を形成す
る。なお、本実施例においては、らせん状の超電導回路
を形成しようとする関係から前記溝ｌｌはらせん状に形
成する。"Example" Figures 1 to 4 are for explaining an example in which the method of the present invention is applied to the production of a sheet coil having an NbzSn superconducting circuit.
First, grooves 11 having the same planar shape as the circuit pattern to be formed are formed on the surface of the weir plate 10 made of Nb shown in FIG. In this embodiment, the groove 11 is formed in a spiral shape because a spiral superconducting circuit is to be formed.
次に第２図に示すように基板ＩＯの７ＮＩｌの内部に溝
１１に沿わせてＴｉ（第３元素）からなる棒体１２を挿
入する。なお、この棒体１２の大きさは、製造すべき超
電導ンートコイルに必要なＴｉ量を供給できる大きさに
設定される。Next, as shown in FIG. 2, a rod 12 made of Ti (third element) is inserted into the 7NIl of the substrate IO along the groove 11. The size of this rod 12 is set to a size that can supply the necessary amount of Ti to the superconducting root coil to be manufactured.
続いて前記基板１０の表面に、この表面を覆わせて第３
図に示すようにＣｕ−Ｓｎ合金からなる金属板１３を爆
発圧接、圧延、あるいは摩擦圧接等の接合手段を用いて
接合し、更に圧延加工を施して積層板１５を作製する。Subsequently, a third layer is applied to the surface of the substrate 10, covering this surface.
As shown in the figure, metal plates 13 made of a Cu-Sn alloy are joined using a joining means such as explosive welding, rolling, or friction welding, and then rolled to produce a laminate 15.
なお、金属板１３は銅板であっても良いが、その場合は
、基板ｌＯと金属板Ｉ３の間に高濃度のＳｎを含有した
Ｃｕ−５ｎ板あるいはＳｎ板を介在させることにする。Note that the metal plate 13 may be a copper plate, but in that case, a Cu-5n plate or a Sn plate containing a high concentration of Sn is interposed between the substrate IO and the metal plate I3.
そして前記積層板Ｌ５の溝１１に沿ってらせん状にレー
ザビームあるいは電子線等の加熱ビームを照射して基板
ｌＯのＮｂと金属板１３のＳｎを拡散し反応させるとと
もに、１１１１１の内部のＴｉを拡散させて第４図に示
すらせん状のＮｂ３Ｓｎ Ｔ’＋超電導金属間化合物
層からなる超電導回路１６を形成して超電導ノートコイ
ル■７を製造する。Then, a heating beam such as a laser beam or an electron beam is irradiated spirally along the groove 11 of the laminated plate L5 to diffuse and react the Nb of the substrate IO and the Sn of the metal plate 13, and at the same time, the Ti inside the laminate 11111 is This is diffused to form a superconducting circuit 16 consisting of a spiral Nb3Sn T'+superconducting intermetallic compound layer shown in FIG. 4, thereby manufacturing a superconducting notebook coil (7).
なお、この超電導回路１６を形成する場合、以下に説明
する方法によっても良い。即ち、まず、積層板１５の全
体に拡散熱処理（６００〜８００℃に２０〜２００時間
加熱する処理）を施して積層板Ｉ５全体のＮｂとＳｎを
拡散し反応させてＮｂ３Ｓｎを生成させるとともに溝ｌ
ｌ内のＴ１を拡散させてＮｂ＋５ｎ−Ｔｉ層を生成し、
この後に、苛１１の周囲部分以外に生成されたＮｂ＊Ｓ
ｎ層をエツチング等の化学的手段、あるいは、切削加工
等の機械的手段により除去して超電導回路１６を形成し
、超電導ンートコイル１７を製造することらできる。Note that when forming this superconducting circuit 16, the method described below may be used. That is, first, the entire laminate plate 15 is subjected to diffusion heat treatment (heating treatment at 600 to 800°C for 20 to 200 hours) to diffuse and react Nb and Sn in the entire laminate plate I5 to generate Nb3Sn, and to form grooves l.
Diffuse T1 in l to generate a Nb+5n-Ti layer,
After this, Nb*S generated in areas other than the surrounding area of 11
The superconducting circuit 16 can be formed by removing the n-layer by chemical means such as etching or mechanical means such as cutting, and the superconducting route coil 17 can be manufactured.
あるいは、前記拡散熱処理を施す前に、積層板１５に形
成すべき回路パターンの周囲部分を切削あるいはエツチ
ングにより除去し、その後に拡散熱処理を施してＮｂ５
Ｓｎ−Ｔｉ層を生成させ、超電導回路１６を形成して超
電導ンートコイル１７を製造することもできる。Alternatively, before performing the diffusion heat treatment, the peripheral portion of the circuit pattern to be formed on the laminate 15 is removed by cutting or etching, and then the diffusion heat treatment is performed to form the Nb5
It is also possible to produce the superconducting coil 17 by forming a Sn--Ti layer and forming the superconducting circuit 16.
以上説明したように超電導ンートコイル１７を製造する
ならば、従来方法において行っていた第３元素を添加し
た合金を作成する工程がなくなるために、基板１０と金
属板Ｉ３の加工性を損なうことがなくなり、中間焼鈍条
件が有利になり、従来方法に比較して加工性が向上する
。If the superconducting root coil 17 is manufactured as explained above, there is no need to create an alloy containing a third element, which was done in the conventional method, so the workability of the substrate 10 and the metal plate I3 is not impaired. , intermediate annealing conditions become advantageous, and workability is improved compared to conventional methods.
第５図は本発明方法の他の実施例を説明するためのらの
で、本実施例においては、Ｃｕ−Ｓｎ合金板からなる基
板２０と純Ｔｉからなる添加仮２１と純Ｎｂからなる金
属板２２を接合して積層板を構成し、この積層板に前述
のように拡散熱処理と回路形成処理を施す。Since FIG. 5 is for explaining another embodiment of the method of the present invention, in this embodiment, a substrate 20 made of a Cu-Sn alloy plate, an additive material 21 made of pure Ti, and a metal plate made of pure Nb are used. 22 are joined together to form a laminate, and this laminate is subjected to diffusion heat treatment and circuit forming treatment as described above.
以上説明した方法によっても超電導ソートコイルを製造
することができる。A superconducting sort coil can also be manufactured by the method described above.
なお、超電導金属間化合物の高磁界域における臨界電流
特性を向上させる第３元素として知られているのは、Ｔ
ｉの（也に、Ｔａ、 Ｈｆ、 Ｉ ｎ、 Ｓ ｉ、Ａ
ＬＺｒ等てあろために、溝１１に挿入する棒体は、これ
ら第３元素のいずれかからなる乙の、あるいはこれら第
３元素の２つ以上からなる合金棒であっても良い。更に
、前記実施例においては、基板１０に溝１１を形成した
が溝１１は金属板１３に、あるいは基板１０と金属板１
３の両方に形成しても良い。The third element known to improve the critical current characteristics of superconducting intermetallic compounds in the high magnetic field region is T.
i's (also, Ta, Hf, I n, S i, A
The rod to be inserted into the groove 11 may be an alloy rod made of any of these third elements or an alloy rod made of two or more of these third elements. Further, in the above embodiment, the groove 11 was formed in the substrate 10, but the groove 11 was formed in the metal plate 13, or between the substrate 10 and the metal plate 1.
3 may be formed.
「製造例１」
厚さ０．５ｍｍのＮｂ板の表面に切削加工によって幅４
０μｍ、深さ４０μｍであって、隣接する溝の間の間隔
を４０μｍに設定したらせん溝を形成し、このら仕ん溝
に挿入自在な大きさの直径４０μｍのＴｉ棒を埋め込む
。次に、このＮｂ板の表面側に、１３ｗｔ％のＳｎを含
有し、厚さ２ｍｍのブロンズ仮を被せ、更に底面側に厚
さ３ｍｍの無酸素銅板を彼せ、これらを爆発圧接によっ
て接合するとともに圧延加工を在して厚さＯ、ｌ ｍｍ
の積層板を作製した。この積層板においてブロンズ仮の
厚さは３６μｍであり、無酸素銅板の厚さは５５μｍで
あり、Ｎｂ板の厚さは９μｍＳ溝幅は２ 、２ ｍｍ１
隣接する溝間隔は２．２ｍｍであった。"Manufacturing Example 1" By cutting the surface of a 0.5 mm thick Nb plate, a width of 4
A spiral groove having a diameter of 0 μm, a depth of 40 μm, and an interval between adjacent grooves of 40 μm is formed, and a Ti rod having a diameter of 40 μm and having a size that can be freely inserted is embedded in this spiral groove. Next, the front side of this Nb plate is covered with a temporary bronze plate containing 13 wt% Sn and 2 mm thick, and then a 3 mm thick oxygen-free copper plate is placed on the bottom side, and these are joined by explosive pressure welding. With rolling process, the thickness is O, l mm.
A laminate of the following was produced. In this laminate, the temporary bronze thickness is 36 μm, the oxygen-free copper plate thickness is 55 μm, the Nb plate thickness is 9 μm, and the S groove width is 2.2 mm1.
The distance between adjacent grooves was 2.2 mm.
次に前記ｆｓｌｔ層仮に、ビーム幅を２ｍｍに設定した
出力５ＫＷの炭酸ガスレーザビームをろ仕ん溝に沿うよ
うに照射して積層板の内部に拡散熱処理を施してＮｂａ
Ｓｎ層を生成させて超電導シートコイルを製造した。Next, the fslt layer was heated by irradiating the inside of the laminate with a carbon dioxide laser beam with a 5KW output and a beam width of 2mm along the filter grooves to perform a diffusion heat treatment on the inside of the laminate.
A superconducting sheet coil was manufactured by forming a Sn layer.
完成した超電導シートコイルにおいて超電導回路の両端
で超電導特性を測定したところ、１４Ｔ（テスラ）にお
いて、Ｊｃ値として５００Ａ／ａｍ”を示した。When the superconducting properties of the completed superconducting sheet coil were measured at both ends of the superconducting circuit, it showed a Jc value of 500 A/am'' at 14 T (Tesla).
前記のように製造された超電導シートコイルの内部を顕
微鏡観察したところ、約５μｍ厚のＮｂ。When the inside of the superconducting sheet coil manufactured as described above was observed under a microscope, it was found that Nb was about 5 μm thick.
Ｓｎ層を確認することができた。It was possible to confirm the Sn layer.
なお、Ｔｉを添加していない超電導シートコイルを製造
したところ、１４ＴにおいてＪｃ値として２００Ａを示
した。In addition, when a superconducting sheet coil to which Ti was not added was manufactured, it showed a Jc value of 200 A at 14T.
従ってＴｉを添加して本発明により製造された超電導シ
ートコイルは、従来方法により製造された超電導シート
コイルに比較して、特に、高磁界域において優れた臨界
電流値を示すことが明らかになった。Therefore, it has been revealed that the superconducting sheet coil manufactured by the present invention with addition of Ti exhibits an excellent critical current value, especially in the high magnetic field region, compared to the superconducting sheet coil manufactured by the conventional method. .
「製造例２」
＋３ｗｔ％のＳｎを含有する厚さ４ｍｍのブロンズ仮と
、厚さ０ 、１ ｍｍのＴｉ板と、厚さＩ ｍｉｎのＮ
ｂ仮と、厚さ６ｎ＋ｍの無酸素銅板を爆発圧接により接
合し、圧延加工を施して厚さ０ 、１ ｍｍｎの圧延板
を作製した。この圧延板において、ブロンズ部分の厚さ
は３６μｍであり、Ｔｉ部分の厚さは０．９μｍ。"Manufacturing Example 2" A 4 mm thick bronze temporary containing +3wt% Sn, a Ti plate with a thickness of 0 and 1 mm, and an N plate with a thickness of I min.
Temporary B and an oxygen-free copper plate with a thickness of 6n+m were joined by explosive welding and rolled to produce a rolled plate with a thickness of 0.1 mm. In this rolled plate, the thickness of the bronze portion is 36 μm, and the thickness of the Ti portion is 0.9 μm.
Ｎｂ部分の厚さは９μｍであり、Ｃｕ部分の厚さは５４
μｍであった。The thickness of the Nb part is 9 μm, and the thickness of the Cu part is 54 μm.
It was μm.
次に、この圧延板から直径３００ｎｏｎの円板状の積層
板を切り出し、幅２ｍｍのらせん状の回路を放電加工に
より形成した。この後に前記らせん状の回路を７５０℃
に１０００時間加熱する拡散熱処理を施し、Ｎｂ５Ｓｎ
超電導動超電導形成した。Next, a disc-shaped laminate with a diameter of 300 non was cut out from this rolled plate, and a spiral circuit with a width of 2 mm was formed by electrical discharge machining. After this, the spiral circuit was heated to 750°C.
Nb5Sn
Superconducting superconductor was formed.
製造されたＮｂ３Ｓｎ超電導回路の両端における超電導
特性を測定したところ、＋４Ｔの外部磁界のもとでＪｃ
値として５００Ａ／μｍを示した。When we measured the superconducting characteristics at both ends of the manufactured Nb3Sn superconducting circuit, we found that Jc under an external magnetic field of +4T.
The value was 500 A/μm.
なお、Ｔｉを添加していない超電導シートコイルを製造
したところ１４Ｔの外部磁界において２００Ａ／ａｍ″
を示している。In addition, when we manufactured a superconducting sheet coil that did not contain Ti, it was 200 A/am'' in an external magnetic field of 14 T.
It shows.
このためＴｉを添加して本発明により製造された超電導
シートコイルは、従来方法により製造されたＴｉを含有
していない超電導シートコイルに比較して、特に高磁界
域において優れた臨界電流値を示すことが明らかになっ
た。Therefore, the superconducting sheet coil manufactured according to the present invention with the addition of Ti exhibits superior critical current values, especially in high magnetic field regions, compared to superconducting sheet coils manufactured by conventional methods that do not contain Ti. It became clear.
「発明の効果」
以上説明したように本発明方法によって超電導ンートコ
イルを製造するならば、基板と金属板を合金化すること
なく第３元素を添加して超電導回路を生成させることが
できるために、高磁界域において優れた臨界電流特性を
発揮する超電導シートコイルを製造できる。また、基板
と金属板に第３元素を添加することなく加工できるため
に加工ら容易である。また、基板と金属板の間に配する
添加部材の厚さや直径を所要の値に設定することにより
、所望量の第３元素を含有させて所望の臨界電流特性を
発揮する超電導シートコイルを製造できる効果がある。"Effects of the Invention" As explained above, if a superconducting root coil is manufactured by the method of the present invention, a superconducting circuit can be created by adding a third element without alloying the substrate and the metal plate. It is possible to manufacture superconducting sheet coils that exhibit excellent critical current characteristics in high magnetic field regions. Further, since the substrate and the metal plate can be processed without adding a third element, processing is easy. In addition, by setting the thickness and diameter of the additive member placed between the substrate and the metal plate to the required values, it is possible to manufacture a superconducting sheet coil that contains the desired amount of the third element and exhibits the desired critical current characteristics. There is.
第１図ないし第４図は、本発明の一実施例を説明するた
めのらので、第１図は溝を形成した基板の断面図、第２
図は溝内に第３元素線を挿入した状態を示す断面図、第
３図は積層板の断面図、第４図は超電導シートコイルの
斜視図、第５図は本発明の第２実施例に使用する積層板
の分解側面図、第６図は第１の従来方法を説明するため
の側面図、第７図は第２の従来方法を説明するための側
面図である。
ｌＯ・・・・・・基板、 １１・・・・・・溝、１
２・・・・・・添加部材、 １３・・・・・・金
属板、１５・・・・・・積層板、 １６・・・
・・・超電導回路、１７・・・・・・超電導シートコイ
ル。1 to 4 are for explaining one embodiment of the present invention, and FIG.
The figure is a cross-sectional view showing the third element wire inserted into the groove, Figure 3 is a cross-sectional view of the laminated plate, Figure 4 is a perspective view of a superconducting sheet coil, and Figure 5 is a second embodiment of the present invention. FIG. 6 is a side view for explaining the first conventional method, and FIG. 7 is a side view for explaining the second conventional method. lO...Substrate, 11...Groove, 1
2... Additive member, 13... Metal plate, 15... Laminate plate, 16...
...Superconducting circuit, 17...Superconducting sheet coil.
Claims (1)
うち、少なくとも１つを含有する基板と、前記金属元素
のうち、残りの金属元素を含有する金属板とを重ねて積
層板を構成し、この積層板に超電導金属間化合物を生成
させる拡散熱処理と回路形成処理を施して超電導シート
コイルを製造する方法において、前記超電導金属間化合
物の高磁界域における臨界電流密度を向上させるＴｉ、
Ｔａ、Ｈｆ、Ｉｎ、Ｓｉ、Ａｌ、Ｚｒ等の第３元素のう
ち、少なくとも１種の元素からなる添加部材を用意し、
前記基板と金属板の間に前記添加部材を配して積層板を
形成するとともに、この積層板に拡散熱処理と回路形成
処理を施して超電導金属間化合物からなる超電導回路を
形成することを特徴とする超電導シートコイルの製造方
法。A laminate is formed by stacking a substrate containing at least one of the two or more metal elements constituting the superconducting intermetallic compound and a metal plate containing the remaining metal element among the metal elements, In the method of manufacturing a superconducting sheet coil by subjecting this laminate to diffusion heat treatment and circuit forming treatment to generate a superconducting intermetallic compound, Ti, which improves the critical current density of the superconducting intermetallic compound in a high magnetic field region;
Prepare an additive member made of at least one element among third elements such as Ta, Hf, In, Si, Al, and Zr,
A superconductor characterized in that the additive member is placed between the substrate and the metal plate to form a laminate, and the laminate is subjected to diffusion heat treatment and circuit forming treatment to form a superconducting circuit made of a superconducting intermetallic compound. Method of manufacturing sheet coils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61120428A JPS62277704A (en) | 1986-05-26 | 1986-05-26 | Manufacture of superconducting sheet coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61120428A JPS62277704A (en) | 1986-05-26 | 1986-05-26 | Manufacture of superconducting sheet coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62277704A true JPS62277704A (en) | 1987-12-02 |
Family
ID=14785974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61120428A Pending JPS62277704A (en) | 1986-05-26 | 1986-05-26 | Manufacture of superconducting sheet coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62277704A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01255451A (en) * | 1988-04-04 | 1989-10-12 | Canon Inc | Coreless motor and lead |
| US5099162A (en) * | 1987-07-22 | 1992-03-24 | Canon Kabushiki Kaisha | Coil of superconducting material for electric appliance and motor utilizing said coil |
-
1986
- 1986-05-26 JP JP61120428A patent/JPS62277704A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5099162A (en) * | 1987-07-22 | 1992-03-24 | Canon Kabushiki Kaisha | Coil of superconducting material for electric appliance and motor utilizing said coil |
| JPH01255451A (en) * | 1988-04-04 | 1989-10-12 | Canon Inc | Coreless motor and lead |
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