JPS63195916A - Manufacture of nbti superconducting wire material - Google Patents
Manufacture of nbti superconducting wire materialInfo
- Publication number
- JPS63195916A JPS63195916A JP62026957A JP2695787A JPS63195916A JP S63195916 A JPS63195916 A JP S63195916A JP 62026957 A JP62026957 A JP 62026957A JP 2695787 A JP2695787 A JP 2695787A JP S63195916 A JPS63195916 A JP S63195916A
- Authority
- JP
- Japan
- Prior art keywords
- nbti
- pipe
- composite processing
- current density
- critical current
- 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 description 15
- 239000000463 material Substances 0.000 title description 3
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 239000000956 alloy Substances 0.000 claims abstract description 11
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 11
- 238000005482 strain hardening Methods 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 claims 1
- 238000009792 diffusion process Methods 0.000 claims 1
- 238000001556 precipitation Methods 0.000 abstract description 4
- 239000011159 matrix material Substances 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 5
- 238000013329 compounding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000002994 raw material Substances 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
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明は臨界電流密度の高いＮｂＴｉ超電４１ｉ１材
の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for manufacturing NbTi superelectric 41i1 material having a high critical current density.
〈従来の技術〉
従来、行なわれているｌ”ｂ Ｔｙ超電導線材の製造方
法は、一般に偽パイプ中にＮｂ Ｔｉ棒を嵌合し、複合
伸線したＱＬ ／ １４ Ｔｉセグメントを多数本集合
し、ヘビリント中に充填してｃＩＬ／ ｍ Ｔｉビレッ
トを作成したのち、このＱＬ ／ Ｎｂ Ｔｉビレット
を押出し、伸線し、所望形状の線材とするものである。<Prior art> The conventional manufacturing method of l"b Ty superconducting wire generally involves fitting a Nb Ti rod into a false pipe and assembling a large number of composite wire-drawn QL/14 Ti segments. After filling in heavy lint to create a cIL/m Ti billet, this QL/Nb Ti billet is extruded and wire-drawn to form a wire rod in a desired shape.
このような製法において、Ｃ↓／ＮｂＴｉ超電導線の臨
界電流密度ＬＪｃ）を上げるためには、伸線工程の所定
サイズで３００〜４５０°Ｃの温度、０〜３００時間の
熱処理を何度か行ない、陽Ｔｉマトリックス中にα−■
、析出物を析出させ、次いで加工によりこの析出物をリ
ボンテープ状にすることによって高い臨界電流密度のも
のが得られるとされている。In such a manufacturing method, in order to increase the critical current density LJc) of C↓/NbTi superconducting wire, heat treatment is performed several times at a temperature of 300 to 450 °C for 0 to 300 hours on a predetermined size in the wire drawing process. , α−■ in the positive Ti matrix
It is said that a high critical current density can be obtained by precipitating a precipitate and then processing the precipitate into a ribbon tape shape.
〈発明が解決しようとする問題点〉
上記した従来のＮｂＴｉ超電導線材の製造法は加工と熱
処理の繰返しという金属学的手段で臨界電流密度が高く
なるようなα−■、の析出構造をコントロールしようと
するもので、材料（原材料）および工程（熱処理条件、
加工の際の異方性）などのバラツキが大きく、製品性能
のコントロールが難しく、かつ臨界電流密度（Ｊｃ）の
最適化が困難であるという欠点があった。<Problems to be solved by the invention> The above-mentioned conventional manufacturing method for NbTi superconducting wires attempts to control the α-■ precipitation structure that increases the critical current density by metallurgical means of repeating processing and heat treatment. The materials (raw materials) and processes (heat treatment conditions,
The disadvantages are that there are large variations in the anisotropy during processing, it is difficult to control the product performance, and it is difficult to optimize the critical current density (Jc).
く問題点を解決するための手段〉
この発明は上記した従来法の欠点に鑑みて臨界電流密度
（Ｊｃ）のＦｌ′ｉＩｉ化がはかれるＮｂＴｉ坦電導線
材の製造方法を見出したものである。Means for Solving the Problems> In view of the above-mentioned drawbacks of the conventional method, the present invention has discovered a method for manufacturing a NbTi carrier conductive wire in which the critical current density (Jc) can be changed to Fl'iIi.
即ち、この発明は周囲をＴｉシートまたはＴｉパイプで
被覆したＴｉ外皮ｍＴｉ合金棒あるいは該合金棒とＴｉ
外皮のないＮｂＴｉ合金棒を複数本集合せしめ、侃系パ
イプ中に嵌合して複合加工によりＣｗ ／ Ｔｉ ／陽
Ｔｕｔを製造する工程と、該侃／Ｔｉ／ＮｂＴｉ線を複
数本集合させ、Ｑ系パイプ中に嵌合して複合加工する工
程とよりなり、後者の工程を所要回数繰返して行なうこ
とを特徴とするＮｂ Ｔ＆超電導線材の製造法を提供す
るものである。That is, this invention relates to a Ti-sheathed mTi alloy rod whose periphery is covered with a Ti sheet or a Ti pipe, or a combination of the alloy rod and the Ti alloy rod.
A process of assembling a plurality of NbTi alloy rods without outer skin and fitting them into a pipe to produce a Cw/Ti/positive Tut through composite processing, and assembling a plurality of NbTi/NbTi wires, The present invention provides a method for manufacturing Nb T and superconducting wire, which comprises a step of fitting into a system pipe and performing composite processing, and the latter step is repeated a required number of times.
臨界電流密度が最適化されるα−丁、の析出構造を設計
段階においてコントロールするため、この光明において
は、その製造工程中に人為的に熱処理工程を含まず、全
ての工程を冷間加工により行なうものである。In order to control the precipitation structure of α-cho, which optimizes the critical current density, at the design stage, this Komei does not include an artificial heat treatment process during the manufacturing process, and all processes are performed by cold working. It is something to do.
臨界電流密度の向上に必要なα−丁、は析出により得る
のではなく、複合材製造の初期段階の複合化の時点でＮ
ｂＴｉの囲りにＴｉを被覆し、このＴｉが適当な配置、
例えばＴｉの厚さが数ｎｌｌのりボンテープ状となり、
かつＬリボンチープ間の間隔が数ｉｏｎｍ程度となるよ
うな配置をとることにより臨界電流密度の最適な構造を
とるようにデザインして嵌合するものである。α-N, which is necessary to improve the critical current density, is not obtained by precipitation, but is obtained from N at the time of compounding in the initial stage of composite production.
bTi is coated around Ti, and this Ti is placed appropriately,
For example, the thickness of Ti becomes several nanometers like glue bond tape,
In addition, by arranging the L ribbon chips so that the distance between them is approximately several ion meters, the L ribbon chips are designed and fitted in such a way that the optimal critical current density is achieved.
〈作用〉
この発明において、周囲をＴｉシートまたはＴｉパイプ
で被覆されたＴｉ外皮ＮｂＴｉ合金棒は複合加工を繰返
すうちに薄いリボンテープ状となり、１４Ｔｉマトリッ
クス中に存在することとなる。これは従来、ＮｂＴｉ含
金棒を熱処理し、α−Ｔｉを析出させ、これを加工して
リボンテープ状にした場合と類似の構造をとるのである
。<Function> In the present invention, a Ti-sheathed NbTi alloy rod whose periphery is covered with a Ti sheet or a Ti pipe becomes a thin ribbon tape-like shape as it is repeatedly subjected to composite processing, and is present in a 14Ti matrix. This has a similar structure to the conventional case where a NbTi metal rod is heat treated to precipitate α-Ti and processed into a ribbon tape shape.
しかしながら本発明においてはそのようなＭ４造を複合
化の初期即ち、設計−嵌合時に決定できるのに対し、従
来の熱処理の工程では途中工程でしか決定できず、その
コントロールも非常に難しいのである。However, in the present invention, such M4 structure can be determined at the initial stage of compounding, that is, at the time of design and fitting, whereas in the conventional heat treatment process, it can only be determined in the middle of the process, and its control is also extremely difficult. .
〈発明の効果〉
以上説明したように、この発明は臨界電流密度の最適と
なるＴｉの配列構造を設計段階において決定し、その構
造通り嵌合・複合化加工が可能なため、臨界電流密度の
最適化が容易で、かつ製品性能のコントロールが容易で
あるという効果を有するのである。<Effects of the Invention> As explained above, in this invention, the Ti arrangement structure that optimizes the critical current density is determined at the design stage, and fitting and compound processing can be performed according to that structure. This has the effect that optimization is easy and product performance is easy to control.
Claims (4)
ｉ外皮ＮｂＴｉ合金棒を複数本集合せしめ、Ｃｕ系パイ
プ中に嵌合して複合加工によりＣｕ／Ｔｉ／ＮｂＴｉ線
を製造する工程と、該Ｃｕ／Ｔｉ／ＮｂＴｉ線を複数本
集合させ、Ｃｕ系パイプ中に嵌合して複合加工する工程
とよりなり、後者の工程を所要回数繰返して行なうこと
を特徴とするＮｂＴｉ超電導線材の製造方法。(1) T whose surroundings are covered with Ti sheet or Ti pipe
A process of assembling a plurality of NbTi alloy rods with outer skin and fitting them into a Cu-based pipe to produce a Cu/Ti/NbTi wire through composite processing; A method for manufacturing a NbTi superconducting wire, comprising a step of fitting into a pipe and performing a composite processing, the latter step being repeated a required number of times.
ｉ外皮ＮｂＴｉ合金棒とＴｉ外皮のないＮｂＴｉ合金棒
を所定本数づつ複数本集合せしめ、Ｃｕ系パイプ中に嵌
合して複合加工によりＣｕ／Ｔｉ／ＮｂＴｉ線を製造す
る工程と、該Ｃｕ／Ｔｉ／ＮｂＴｉ線を複数本集合させ
、Ｃｕ系パイプ中に嵌合して複合加工する工程とよりな
り、後者の工程を所要回数繰返して行なうことを特徴と
する特許請求の範囲第１項記載のＮｂＴｉ超電導線材の
製造方法。(2) T surrounded by Ti sheet or Ti pipe
A step of assembling a predetermined number of NbTi alloy rods and NbTi alloy rods without a Ti outer sheath, fitting them into a Cu-based pipe, and manufacturing a Cu/Ti/NbTi wire through composite processing; The NbTi wire according to claim 1, which comprises a step of assembling a plurality of /NbTi wires and fitting them into a Cu-based pipe to perform composite processing, and the latter step is repeated a required number of times. A method for manufacturing superconducting wire.
ｉ棒の所要本数の複数本集合体とＣｕ系パイプとの界面
にＮｂ、Ｖなどの拡散バリアー層を設けることを特徴と
する特許請求の範囲第１項または第２項記載のＮｂＴｉ
超電導線材の製造方法。(3) Ti-encrusted NbTi rods and NbT without Ti-encrusted
NbTi according to claim 1 or 2, characterized in that a diffusion barrier layer of Nb, V, etc. is provided at the interface between the required number of i-rods and the Cu-based pipe.
A method for manufacturing superconducting wire.
が冷間加工で行なわれることを特徴とする特許請求の範
囲第１項ないし第３項のいずれかの項に記載のＮｂＴｉ
超電導線材の製造方法。(4) NbTi according to any one of claims 1 to 3, characterized in that all steps for manufacturing the NbTi superconducting wire are performed by cold working.
A method for manufacturing superconducting wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62026957A JPS63195916A (en) | 1987-02-06 | 1987-02-06 | Manufacture of nbti superconducting wire material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62026957A JPS63195916A (en) | 1987-02-06 | 1987-02-06 | Manufacture of nbti superconducting wire material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63195916A true JPS63195916A (en) | 1988-08-15 |
Family
ID=12207638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62026957A Pending JPS63195916A (en) | 1987-02-06 | 1987-02-06 | Manufacture of nbti superconducting wire material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63195916A (en) |
-
1987
- 1987-02-06 JP JP62026957A patent/JPS63195916A/en active Pending
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