JPS62272412A - High strength superconductor - Google Patents
High strength superconductorInfo
- Publication number
- JPS62272412A JPS62272412A JP61115632A JP11563286A JPS62272412A JP S62272412 A JPS62272412 A JP S62272412A JP 61115632 A JP61115632 A JP 61115632A JP 11563286 A JP11563286 A JP 11563286A JP S62272412 A JPS62272412 A JP S62272412A
- Authority
- JP
- Japan
- Prior art keywords
- superconducting wire
- strength
- superconducting
- wire
- stabilizing metal
- 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
- 239000002887 superconductor Substances 0.000 title 1
- 239000002184 metal Substances 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 230000000087 stabilizing effect Effects 0.000 claims description 11
- 239000011159 matrix material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 9
- 229910020012 Nb—Ti Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 238000000137 annealing Methods 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000009864 tensile test Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005482 strain hardening Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910002482 Cu–Ni Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001192 hot extrusion Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005476 soldering Methods 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 ５、 発明の詳細な説明 〔産業上の利用分野〕 本発明は高強度超電導線に関するものである。[Detailed description of the invention] 5. Detailed description of the invention [Industrial application field] The present invention relates to high strength superconducting wire.
従来高強度超電導線を得る為には、超電導線の構造に応
じて下記（１）〜（５）の方法がとられていたつ（１）
第５図に示す様に、Ｃｕ１Ｏ中にＮｂ −Ｔｉフィラメ
ント２を埋込んだ構造の超電導線においては、最終焼鈍
後１〜２０係の冷間加工を行ない、安定化金属であるＣ
ｕ １ ｆ％ Ｈ−１／２ Ｈの状態にして強度を持
たせる方法。Conventionally, in order to obtain high-strength superconducting wire, the following methods (1) to (5) were used depending on the structure of the superconducting wire.
As shown in Fig. 5, in a superconducting wire having a structure in which Nb-Ti filaments 2 are embedded in Cu1O, cold working of 1 to 20 times is performed after the final annealing.
U 1 f% H - 1/2 A method to give strength to the state of H.
（２）第４図に示す様に、Ｇｕ ／ Ｎｂ −Ｔｉ超電
導線を複数本撚線にして使用する場合においては、Ｃｕ
−Ｎ１ 合金線６の周囲に超電導線７を撚線して強
度を持たせる方法。(2) As shown in Figure 4, when multiple Gu/Nb-Ti superconducting wires are used as twisted wires, Cu
-N1 A method of twisting superconducting wires 7 around alloy wires 6 to provide strength.
（５）第５図に示す様に、Ｃｕ ／ Ｎｂ −Ｔｉ超電
導線７を安定化金属である高純度Ａｇ５の中に埋込んで
使用する場合においては、ステンレス線８を平行に埋込
んで強度を持たせる方法。(5) As shown in Fig. 5, when Cu/Nb-Ti superconducting wires 7 are embedded in high purity Ag5, which is a stabilizing metal, stainless steel wires 8 are embedded in parallel to improve strength. How to have it.
上記（１）の方法においては、安定化金属がＶ４Ｈ〜１
４Ｈの状態になるため強度は高くなるが、安定化金属が
本来具備すべき電気伝導率、熱伝導率が損われ、安定性
の点で問題があった。In the method (1) above, the stabilizing metal is V4H~1
Since it is in the 4H state, the strength is increased, but the electrical conductivity and thermal conductivity that the stabilizing metal should originally have are impaired, and there is a problem in terms of stability.
上記（２）の方法においては、全体としての平均強度は
確保されるが、撚線構造であるため局部的応力に弱く、
巻線された超電導コイルの剛性が損われ、又引張、圧縮
応力に対しては補強されるが、超電導通電時にコイル線
材に直角方向に作用するフープ力に対しては補強が充分
でない等強度面で問題があった。In method (2) above, the average strength as a whole is ensured, but due to the twisted wire structure, it is vulnerable to local stress.
The rigidity of the wound superconducting coil is impaired, and although it is reinforced against tensile and compressive stress, the reinforcement is not sufficient against the hoop force that acts perpendicularly to the coil wire when superconducting current is applied. There was a problem.
上記（３）の方法においては、高純度Ａ１１５＆Ｃｕ／
Ｎｂ −Ｔｉ 超電導線７とステンレス線８を同時押
出する製造方法が通常行なわれているが、押出ダイス形
状が複雑になり、ダイスの寿命が短くて長尺線の製造に
適していなく、更に押出時のＣｕ ／Ｎｂ −Ｔｉ
超電導線７およびステンレス線８の位置の制御が困難で
均一な複合超電導線が得られない等製造技術上問題が多
かっ念。In the method (3) above, high purity A115&Cu/
A manufacturing method in which the Nb-Ti superconducting wire 7 and the stainless steel wire 8 are co-extruded is usually carried out, but the shape of the extrusion die is complicated and the life of the die is short, making it unsuitable for manufacturing long wires. Cu/Nb-Ti
There are many manufacturing technology problems, such as difficulty in controlling the positions of the superconducting wire 7 and the stainless steel wire 8, making it impossible to obtain a uniform composite superconducting wire.
以上の様に高強度超電導線を得るために従来性なわれて
きた方法は超電導線の安定性、強度或いは製造技術の点
で問題があり、高強度で安定性に優れておりかつ通常の
製造工程で製造が可能な超電導線の開発が切望されてい
次。As mentioned above, conventional methods for obtaining high-strength superconducting wires have problems in terms of stability, strength, or manufacturing technology. There is an urgent need for the development of superconducting wires that can be manufactured through a process.
本発明は以上の問題点を解決するために安定化金属マト
リックス中に超電導性フィラメントと安定化金属よりも
強度の高い複数の金属フィラメントを長手方向に連続し
た状態で埋込んだ断面構造を有することを特徴とする高
強度超電導線を開発したものである。In order to solve the above problems, the present invention has a cross-sectional structure in which a superconducting filament and a plurality of metal filaments having higher strength than the stabilizing metal are embedded continuously in the longitudinal direction in a stabilizing metal matrix. This is a high-strength superconducting wire that has been developed.
第１図に示す様に、安定化金属であるＣｕ Ｌのマト
リックス中にＮｂ −Ｔｉ フィラメント２とステン
レス、Ｃｕ −Ｎ１ 合金線等の補強フィラメント３
をフィラメント状に配置する事により、安定性に優れた
高強度超電導線が得られた。As shown in Figure 1, a Nb-Ti filament 2 and a reinforcing filament 3 such as stainless steel or Cu-N1 alloy wire are present in a matrix of Cu L, which is a stabilizing metal.
By arranging them in the form of filaments, a high-strength superconducting wire with excellent stability was obtained.
上記構造の超電導線を得る為には、第５図に示した従来
の超電導線ビレットを組立てる工程において、Ｈｂ −
Ｔｉ 棒を挿入するかわりに所望本数の補強材を挿入
すればよく、特別な製造工程を必要としない。又各々の
フィラメントの配置および本数は任意であり何ら制限を
加えるものではない。In order to obtain a superconducting wire with the above structure, in the process of assembling the conventional superconducting wire billet shown in FIG.
Instead of inserting Ti rods, a desired number of reinforcing members may be inserted, and no special manufacturing process is required. Further, the arrangement and number of each filament are arbitrary and are not limited in any way.
更に第２図に示す様に本発明の超電導線４を別の安定化
金属である高純度Ａ１５の中に半田付や同時押出により
埋込んだ複合超電導線を得る事も可能である。或いは同
じく本発明の超電導線１＋ｉ複数本撚線した超電導線の
製造も可能である。Furthermore, as shown in FIG. 2, it is also possible to obtain a composite superconducting wire in which the superconducting wire 4 of the present invention is embedded in high-purity A15, which is another stabilizing metal, by soldering or coextrusion. Alternatively, it is also possible to manufacture a superconducting wire in which a plurality of superconducting wires 1+i of the present invention are twisted.
〔実施例１〕
外径２００Ｍ、内径１６６ｍｍの無酸素鋼管の中に、対
辺距離１５７１１１１１１の六角形状断面で内径１７醜
の穴を有する無酸素鋼管５５本を挿入し、上記穴の中に
外径１６６閣のＮｂ −Ｔｉ 棒を１９本、同じく外
径１６．６．ｍｍのＣｕ −５０％Ｎ１合金棒５６本を
配置した超電導ビレットを作製した。上記ビレットを熱
間押出により外径５０簡に押出した後、圧延、伸線、熱
処理、ツイストを施し直径１饋の超電導線４を得た。こ
の超電導線１４ｔ−３０００で２時間焼鈍後引張試験を
行ない、３９ＫＩ！ｆ／−の強度を得た。これに対して
、Ｃｕ −Ｎｉ 合金棒のかわりに無酸素銅を用いた
従来構造の超電導線７を作製し、５００℃で２時間焼鈍
後引張試験を行なっ次が、２１に９ｆ／−の強度しか得
られなかった。そこで焼鈍後さらに１５％の冷間加工を
加えて引張試験を行なったところ３８に４ｒ／−の強度
が得られた。次に超電導線の安定性を評価する為残留抵
抗の測定を行なったところ、本発明の超電導線４では１
７３μΩ／ｍであったが、従来構造の超電導線７に１５
％の冷間加工を加えた物では５１０μΩ／ｍであり、後
者は安定性の点で劣っていた。更に従来構造の超電導線
７を焼鈍後６％冷間加工したところ残留抵抗は１７５μ
Ω／ｍとなったが、強度は５１に９ｆ／−と本発明の超
電導線より低い値しか得られなかった。[Example 1] Into an oxygen-free steel pipe with an outer diameter of 200M and an inner diameter of 166mm, 55 oxygen-free steel pipes having a hexagonal cross section with a distance across flats of 157111111 and a hole with an inner diameter of 17 mm were inserted, and the outer diameter was 19 Nb-Ti rods with a diameter of 166mm, also with an outer diameter of 16.6mm. A superconducting billet was prepared in which 56 mm Cu-50%N1 alloy rods were arranged. The billet was extruded by hot extrusion into an outer diameter of 50 mm, followed by rolling, wire drawing, heat treatment, and twisting to obtain a superconducting wire 4 with a diameter of 1 mm. A tensile test was performed on this 14t-3000 superconducting wire after annealing for 2 hours, and the result was 39KI! An intensity of f/- was obtained. On the other hand, we fabricated a superconducting wire 7 with a conventional structure using oxygen-free copper instead of the Cu-Ni alloy rod, annealed it at 500°C for 2 hours, and then conducted a tensile test. I could only get it. Therefore, after annealing, 15% cold working was added and a tensile test was conducted, and a strength of 4r/- was obtained for 38. Next, in order to evaluate the stability of the superconducting wire, residual resistance was measured, and it was found that the superconducting wire 4 of the present invention had a
73 μΩ/m, but 15
% cold working was 510 μΩ/m, and the latter was inferior in stability. Furthermore, when superconducting wire 7 with a conventional structure was cold-worked by 6% after annealing, the residual resistance was 175μ.
Ω/m, but the strength was only 51 to 9 f/-, which is lower than the superconducting wire of the present invention.
〔実施例２〕
実施例１で得られた直径１諷の超電導線４と９９９９５
％の純度を有する高純度Ａ１！５を同時押出し、厚さ１
５ｍ、幅５ｔａａのＭ安定化超電導線を得た。この線材
を引張試験したところ７．５ＫＩｉｆ／Ｊの強度が得ら
れた。これに対して実施例１における従来構造の超電導
線７を用いてＭ安定化超電導線を製造したところＬ）、
５ Ｋ９ ｆ ／−の強度しか得られなかった。[Example 2] Superconducting wire 4 and 99995 with a diameter of 1 length obtained in Example 1
Co-extruded high purity A1!5 with purity of %, thickness 1
An M-stabilized superconducting wire with a width of 5 m and a width of 5 taa was obtained. When this wire was subjected to a tensile test, a strength of 7.5 KIif/J was obtained. On the other hand, when an M-stabilized superconducting wire was manufactured using the superconducting wire 7 of the conventional structure in Example 1, L)
Only an intensity of 5 K9 f /- was obtained.
本発明により、従来構造の超電導線７と同一の製造工程
で製造され次にもかかわらず、著しく強度が高くかつ安
定性に優れた超電導線４が得られる。父上記超電導線ヰ
は内部に補強材料を含んでおり、更に別の安定化金属５
に埋込む工程が非常に簡略化された。According to the present invention, a superconducting wire 4 having extremely high strength and excellent stability can be obtained despite being manufactured in the same manufacturing process as the superconducting wire 7 having a conventional structure. The above superconducting wire contains a reinforcing material inside, and further contains another stabilizing metal 5.
The embedding process has been greatly simplified.
第１図、第２図は本発明の超電導線の構造を示す断面図
である。
第５図は従来の高強度超電導線及び通常強度の超電導線
の構造を示す断面図、第４図、第５図は従来の高強度超
電導線の構造を示す断面図である。
１・・・Ｃｕ 、 ２・・・超電導性（Ｎｂ−Ｔｉ）
フィラメント、５・・・補強フィラメント（ステンレス
、Ｃ：ｕ −Ｎ１ 合金線等）、４ ・−Ｃｕ ／ Ｎ
ｂ −Ｔｉ超電導線、５・・・高純度／ｄ、 ６・・
・Ｇｕ −Ｎｉ 合金線、７・・・ＣＵ／ Ｎｂ −Ｔ
ｉ超電導線、８・・・ステンレス線第１図 第
２図
第３図 第４図 第５図
８＝ステンレス1 and 2 are cross-sectional views showing the structure of the superconducting wire of the present invention. FIG. 5 is a cross-sectional view showing the structure of a conventional high-strength superconducting wire and a normal-strength superconducting wire, and FIGS. 4 and 5 are cross-sectional views showing the structure of a conventional high-strength superconducting wire. 1...Cu, 2...Superconductivity (Nb-Ti)
Filament, 5... Reinforcement filament (stainless steel, C:u-N1 alloy wire, etc.), 4 -Cu/N
b -Ti superconducting wire, 5...high purity/d, 6...
・Gu-Ni alloy wire, 7...CU/Nb-T
i Superconducting wire, 8... Stainless steel wire Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 8 = Stainless steel
Claims (2)
トと安定化金属よりも強度の高い複数の金属フィラメン
トを長手方向に連続した状態で埋込んだ断面構造を有す
ることを特徴とする高強度超電導線。(1) A high-strength superconducting wire characterized by having a cross-sectional structure in which a superconducting filament and a plurality of metal filaments having higher strength than the stabilizing metal are embedded continuously in the longitudinal direction in a stabilizing metal matrix.
らなり、そのいずれかの層に上記両フィラメントが埋込
まれていることを特徴とする特許請求の範囲第１項記載
の高強度超電導線。(2) The high-strength superconducting wire according to claim 1, wherein the stabilizing metal matrix consists of an inner layer and an outer layer, and both of the filaments are embedded in one of the layers. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61115632A JPS62272412A (en) | 1986-05-20 | 1986-05-20 | High strength superconductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61115632A JPS62272412A (en) | 1986-05-20 | 1986-05-20 | High strength superconductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62272412A true JPS62272412A (en) | 1987-11-26 |
Family
ID=14667450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61115632A Pending JPS62272412A (en) | 1986-05-20 | 1986-05-20 | High strength superconductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62272412A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004203703A (en) * | 2002-12-26 | 2004-07-22 | Chubu Electric Power Co Inc | Bi BASED OXIDE SUPERCONDUCTOR |
| US8173901B2 (en) * | 2007-04-18 | 2012-05-08 | European Advanced Superconductor Gmbh & Co. Kg | Multifilament superconductor, as well as method for its production |
-
1986
- 1986-05-20 JP JP61115632A patent/JPS62272412A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004203703A (en) * | 2002-12-26 | 2004-07-22 | Chubu Electric Power Co Inc | Bi BASED OXIDE SUPERCONDUCTOR |
| US8173901B2 (en) * | 2007-04-18 | 2012-05-08 | European Advanced Superconductor Gmbh & Co. Kg | Multifilament superconductor, as well as method for its production |
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