JPH03269913A - Superconducting wire rod and manufacture thereof - Google Patents
Superconducting wire rod and manufacture thereofInfo
- Publication number
- JPH03269913A JPH03269913A JP2067752A JP6775290A JPH03269913A JP H03269913 A JPH03269913 A JP H03269913A JP 2067752 A JP2067752 A JP 2067752A JP 6775290 A JP6775290 A JP 6775290A JP H03269913 A JPH03269913 A JP H03269913A
- Authority
- JP
- Japan
- Prior art keywords
- superconducting
- metal wire
- sintering
- transfer
- wire
- 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 3
- 239000000463 material Substances 0.000 claims abstract description 53
- 229910052751 metal Inorganic materials 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 29
- 238000005245 sintering Methods 0.000 claims abstract description 23
- 238000002844 melting Methods 0.000 claims abstract description 9
- 230000008018 melting Effects 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 abstract description 13
- 229920005989 resin Polymers 0.000 abstract description 8
- 239000011347 resin Substances 0.000 abstract description 8
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 229920006267 polyester film Polymers 0.000 abstract description 4
- 229910002480 Cu-O Inorganic materials 0.000 abstract description 2
- 229910018487 Ni—Cr Inorganic materials 0.000 abstract description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 229910052737 gold Inorganic materials 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 239000002985 plastic film Substances 0.000 abstract description 2
- 229920006255 plastic film Polymers 0.000 abstract description 2
- 229910052709 silver Inorganic materials 0.000 abstract description 2
- 239000010935 stainless steel Substances 0.000 abstract description 2
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(iii) oxide Chemical compound O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 abstract 2
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- 235000010216 calcium carbonate Nutrition 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000004898 kneading Methods 0.000 abstract 1
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 abstract 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N lead(II) oxide Inorganic materials [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 abstract 1
- 229910000018 strontium carbonate Inorganic materials 0.000 abstract 1
- LEDMRZGFZIAGGB-UHFFFAOYSA-L strontium carbonate Chemical compound [Sr+2].[O-]C([O-])=O LEDMRZGFZIAGGB-UHFFFAOYSA-L 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 4
- 230000002950 deficient Effects 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 description 1
- 229910014454 Ca-Cu Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002887 superconductor Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding 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
- Laminated Bodies (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- 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、超電導性線材に関するものである。[Detailed description of the invention] (Industrial application field) The present invention relates to a superconducting wire.
（従来の技術）
超電導性線材としては従来、金属シース管内にセラミッ
ク粉末を封入したものを焼結したものが知られている。(Prior Art) As a superconducting wire, a material obtained by sintering a ceramic powder sealed in a metal sheath tube is conventionally known.
（発明が解決しようとする課題）
しかし従来の超電導性線材は、金属シース管があるため
実際上の加工は容易でなく、また、管内にセラミック粉
末を均一に封入することが困難であることから圧力ムラ
が生じ、これが焼結ムラとなって安定した線材を得るこ
とは出来なかった。(Problem to be solved by the invention) However, since conventional superconducting wires have metal sheath tubes, actual processing is not easy, and it is difficult to uniformly encapsulate ceramic powder inside the tubes. Pressure unevenness occurred, which resulted in sintering unevenness, making it impossible to obtain a stable wire.
この発明はかかる欠点を除去するもので、実際上の取扱
や加工が極めて容易で、がっ、圧力ムラが生じることが
なく、従って焼結ムラも生じない安定した線材を提供す
るものである。The present invention eliminates these drawbacks and provides a stable wire rod that is extremely easy to handle and process in practice, does not cause pressure unevenness, and therefore does not cause sintering unevenness.
またこの発明は、焼結前の工程検査で不良箇所を容易に
修正でき、不良品の発生を未然に防止することができる
線材を提供するものである。Further, the present invention provides a wire rod in which defective parts can be easily corrected during process inspection before sintering, and generation of defective products can be prevented.
さらにこの発明は、自由に厚さを調整した超電導性膜を
設けてなる線材を提供するものである。Furthermore, the present invention provides a wire provided with a superconducting film whose thickness can be freely adjusted.
（課題を解決するための手段）
この発明は、超電導性転写材の転写により融点９００℃
以上の金属線の周囲を超電導性材料で被覆したものを焼
結して、金属線の周囲に超電導性膜を設けてなることを
特徴とする超電導性線材である。(Means for Solving the Problems) This invention achieves a melting point of 900° C. by transferring a superconducting transfer material.
This superconducting wire is characterized in that it is made by sintering the metal wire covered with a superconducting material to provide a superconducting film around the metal wire.
また、この発明は、超電導性材料を備えた転写層を基材
の片面に有している超電導性転写材を、融点９００℃以
上の金属線の周囲に転写し、該転写後に金属線を焼結す
ることを特徴とする、超電導性線材の製造法である。Further, the present invention involves transferring a superconducting transfer material having a transfer layer containing a superconducting material on one side of a base material around a metal wire having a melting point of 900°C or higher, and baking the metal wire after the transfer. This is a method for manufacturing a superconducting wire, which is characterized by tying the wire together.
この発明は、超電導性材料を備えた転写層を基材の片面
に有している超電導性転写材を利用して、融点９００℃
以上の金属線の周囲を超電導性材料で被覆し、その後焼
結することにより不要な樹脂成分を分解除去して得るこ
とが出来るものである。This invention utilizes a superconducting transfer material having a transfer layer including a superconducting material on one side of the base material, and has a melting point of 900°C.
It can be obtained by covering the periphery of the metal wire with a superconducting material and then sintering it to decompose and remove unnecessary resin components.
この発明の超電導性材料は、特に限定されるものではな
く、例えば、Ｂ１−Ｐｂ−３ｒ−Ｃａ −Ｃｕ−０系の
粉末が挙げられ、別の例としては。The superconducting material of the present invention is not particularly limited, and examples thereof include B1-Pb-3r-Ca-Cu-0 powder, and another example thereof is B1-Pb-3r-Ca-Cu-0 powder.
アルカリ土類金属、希土類金属、遷移元素、及び酸素か
らなるＢａ−Ｙ−Ｃｕ−０系の粉末等が挙げられる。Examples include Ba-Y-Cu-0-based powders made of alkaline earth metals, rare earth metals, transition elements, and oxygen.
また、この発明の超電導性材料は、焼結前に予め超電導
性を付与されている材料と焼結後に超電導性を付与され
る材料との両方を含むものである。Further, the superconducting material of the present invention includes both a material that has been imparted with superconductivity before sintering and a material that is imparted with superconductivity after sintering.
前者には例えば、Ｂ １−Ｐｂ−３ｒ−Ｃａ−Ｃｕ−Ｏ
系の粉末が挙げられ、後者には例えば、Ｂｉｚ ０３
、ＰｂＯ，５ｒＣＯ＞ 、ＣａＣ０，等の粉末を所定量
混合したものか挙げられる。The former includes, for example, B 1-Pb-3r-Ca-Cu-O
The latter includes, for example, Biz 03 powder.
, PbO, 5rCO>, CaC0, etc., in a predetermined amount.
次にこの発明を図面を参照しつつ説明する。Next, this invention will be explained with reference to the drawings.
第１図は、この発明の８ｉ電導性４ＩＮの一実施例を示
す一部斜視図であり、第２１１２は、金属線の周囲を超
電導性材料で被覆した焼結前の状態を示す一部斜視図で
ある。FIG. 1 is a partial perspective view showing one embodiment of the 8i conductive 4IN of the present invention, and FIG. It is a diagram.
図中、１０は金属線、２０は超電導性膜、３０は超電導
性材料を備えた転写層、４０は基材である。In the figure, 10 is a metal wire, 20 is a superconducting film, 30 is a transfer layer provided with a superconducting material, and 40 is a base material.
金属線１０としては融点９００℃以上のものを使用する
０例えば、Ａｇ、Ａｕ、Ｃｕ、Ｎ ｉ等の各種の金属線
１０が挙げられ、また、Ｎｉ−Ｃｒ、ステンレス等の各
種の合金線も、この発明の金属線１０に含まれる。As the metal wire 10, there may be used various metal wires 10 having a melting point of 900° C. or higher, such as Ag, Au, Cu, Ni, etc., and various alloy wires such as Ni-Cr, stainless steel, etc. , included in the metal wire 10 of the present invention.
金属線１０の融点が９００℃より低いと、焼結時の加熱
に耐えられず、この発明には使用できない。If the melting point of the metal wire 10 is lower than 900° C., it cannot withstand the heating during sintering and cannot be used in this invention.
金属線１０の太さは特に限定されないが、一般的には太
いほど超電導性材料を備えた転写層３０での周囲の被覆
が容易になり、金属ｉｉｏの径が大体１■φ以上であれ
ば超電導性材料を備えた転写層３０での周囲の被覆は比
較的に容易である。The thickness of the metal wire 10 is not particularly limited, but in general, the thicker it is, the easier it is to cover the surrounding area with the transfer layer 30 comprising a superconducting material, and if the diameter of the metal wire 10 is approximately 1 mm or more, The surrounding coating with a transfer layer 30 with superconducting material is relatively easy.
金属線１０の周囲の超電導性材料を備えた転写層３０で
の被覆は、超電導性転写材を転写して行う。The surrounding metal wire 10 is coated with a transfer layer 30 comprising a superconducting material by transferring a superconducting transfer material.
超電導性転写材の具体的な構成は限定されない。The specific structure of the superconducting transfer material is not limited.
超電導性転写材としては例えば、超電導性材料を備えた
転写層３０を基材４０の片面に有してなる超電導性転写
材が使用できる（特開昭６４−８３６５４号公報参照〉
、超電導性転写材の一例として、基材４０であるポリエ
ステルフィルム等のプラスチックフィルムの片面に、焼
結前に予め超電導性を付与されているＢ １−Ｐｂ−３
ｒ−ＣａＣｕ−０系の粉末や、焼結後に超電導性を付与
されるＢｉｇ Ｏｚ 、ＰｂＯ，５ｒＣＯ，、ＣａＣ０
１等の粉末を所定量混合したもの等の超電導性材料を混
練した樹脂を塗布し乾燥して超電導性材料を備えた転写
層３０を形成し、さらに必要によりその上に接着層を形
成したものが挙げられる。As the superconducting transfer material, for example, a superconducting transfer material having a transfer layer 30 provided with a superconducting material on one side of a base material 40 can be used (see JP-A-64-83654).
As an example of a superconducting transfer material, B1-Pb-3 is prepared by imparting superconductivity to one side of a plastic film such as a polyester film, which is the base material 40, before sintering.
r-CaCu-0 series powder and Big Oz, PbO, 5rCO, CaC0, which are given superconductivity after sintering
A resin kneaded with a superconducting material such as a predetermined amount of powder of No. can be mentioned.
超電導性材料を備えた転写層３０に使用する樹脂は後の
焼結で完全に分解除去されるものであることを要し、例
えば、ブチラール系、アクリル系等の樹脂が好ましい、
また、転写層３０に使用する樹脂中には、転写性能の向
上等のために各種の可塑剤や分散剤を適当量含有させて
もよく、この各種の可塑剤や分散剤も後の焼結で完全に
分解除去される限りは、この様にしたものももちろんこ
の発明の転写層３０に使用する樹脂に含まれる。The resin used for the transfer layer 30 comprising a superconducting material must be completely decomposed and removed during subsequent sintering, and for example, butyral-based, acrylic-based resins, etc. are preferable.
In addition, the resin used for the transfer layer 30 may contain appropriate amounts of various plasticizers and dispersants in order to improve the transfer performance, and these various plasticizers and dispersants are also used in the subsequent sintering process. As long as it can be completely decomposed and removed, such resins are of course included in the resin used for the transfer layer 30 of the present invention.
（実施例）
超電導性材料として既に超電導性が付与されているＢ
１−Ｐｂ−３ｒ−Ｃａ−Ｃｕ −０系の酸化物高温超電
導体粉末をジルコニアボールで極力微細粉砕し、このよ
うにしたものをブチラール樹脂の中に１１５０ＰＨＲ含
有させたものを、十分な離型性をもたせるために表面に
シリコンコートしたポリエステルフィルムのシリコンコ
ート面に、１５μｍ厚に塗布して超電導性材料を備えた
転写層を形成した。さらにその上にアクリル系樹脂を２
μ■厚にコートして接着層を形成し、これを２国幅のテ
ープ状とした。(Example) B that has already been given superconductivity as a superconducting material
1-Pb-3r-Ca-Cu -0 series oxide high-temperature superconductor powder is ground as finely as possible using zirconia balls, and 1150 PHR of this powder is contained in butyral resin. A transfer layer containing a superconducting material was formed by applying the superconducting material to a thickness of 15 μm on the silicon-coated surface of a polyester film whose surface was coated with silicon to impart properties. Furthermore, 2 layers of acrylic resin are applied on top of that.
An adhesive layer was formed by coating to a thickness of μμ, and this was made into a tape shape of two widths.
一方、３■φのＡｇ線を１００℃に加熱しこのＡｇ１ｉ
の周囲に、上記テープを一方の端がらぐるぐると巻きな
がらポリエステルフィルムを剥離除去していき、この操
作を５回繰り返して超電導性材料を備えた転写層を５層
重ねて転写した後、８６０℃で２０時間焼結して、Ａｇ
線を芯材とするセラミック高温タイプ超電導性線材を得
た。On the other hand, a 3■φ Ag wire was heated to 100℃, and this Ag1i
The polyester film was peeled off and removed while one end was wrapped around the tape, and this operation was repeated 5 times to transfer 5 layers of superconducting material, and then heated to 860°C. Ag
A ceramic high-temperature type superconducting wire with wire as the core material was obtained.
（発明の効果〉
この発明は以上のように構成したがら次のような効果が
ある。(Effects of the Invention) Although this invention is constructed as described above, it has the following effects.
この発明は中空である金属シース管を使用しないから実
際上の取扱や加工が極めて容易である。Since this invention does not use a hollow metal sheath tube, it is extremely easy to handle and process.
またこの発明は管内にセラミック粉末を封入するもので
なく、超電導性転写材を使用して超電導性材料を備えた
転写層により金属線の周囲を被覆はするものであるがら
、圧力ムラが生じることがなく、従って焼結ムラも生じ
ず安定した線材を得ることか出来る。Furthermore, although this invention does not involve sealing ceramic powder inside the tube, but instead uses a superconducting transfer material to cover the metal wire with a transfer layer containing the superconducting material, pressure unevenness may occur. Therefore, a stable wire rod can be obtained without sintering unevenness.
またこの発明は焼結前に被覆状態を肉眼で確認出来るか
ら工程検査で不良箇所を容易に修正でき、不良品の発生
を未然に防止することができる。Furthermore, since the coating state of the present invention can be visually confirmed before sintering, defective parts can be easily corrected during process inspection, and the occurrence of defective products can be prevented.
この発明は超電導性転写材の転写は一回でもよいが、繰
り返し転写すなわち転写を重ねることにより超電導性膜
の厚さを自由に調整できる。In the present invention, the superconducting transfer material may be transferred only once, but the thickness of the superconducting film can be freely adjusted by repeating transfers, that is, overlapping transfers.
またこの発明は多少の巻きムラすなわち転写ムラは、焼
結時に打ち消され、超電導性には影響がないものである
。Further, in this invention, some winding unevenness, that is, transfer unevenness, is canceled out during sintering and does not affect superconductivity.
第１図は、この発明の超電導性線材の一実施例を示す一
部斜視図であり、第２図は、金属線の周囲を超電導性材
料で被覆した焼結前の状態を示す一部斜視図である。
１０・・・金属線
２０・・・超電導性膜
３０・・・超電導性材料を備えた転写層４０・・・基材FIG. 1 is a partial perspective view showing an embodiment of the superconducting wire of the present invention, and FIG. 2 is a partial perspective view showing a state before sintering in which the periphery of the metal wire is covered with a superconducting material. It is a diagram. DESCRIPTION OF SYMBOLS 10... Metal wire 20... Superconducting film 30... Transfer layer 40 provided with superconducting material... Base material
Claims (2)
金属線の周囲を超電導性材料で被覆したものを焼結して
、金属線の周囲に超電導性膜を設けてなることを特徴と
する超電導性線材。(1) A superconducting film is provided around the metal wire by sintering a metal wire having a melting point of 900° C. or more and covering it with a superconducting material by transferring a superconducting transfer material. Superconducting wire.
ている超電導性転写材を、融点９００℃以上の金属線の
周囲に転写し、該転写後に金属線を焼結することを特徴
とする、超電導性線材の製造法。(2) Transferring a superconducting transfer material having a transfer layer containing a superconducting material on one side of a base material around a metal wire having a melting point of 900°C or higher, and sintering the metal wire after the transfer. A method for producing a superconducting wire, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2067752A JPH03269913A (en) | 1990-03-16 | 1990-03-16 | Superconducting wire rod and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2067752A JPH03269913A (en) | 1990-03-16 | 1990-03-16 | Superconducting wire rod and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03269913A true JPH03269913A (en) | 1991-12-02 |
Family
ID=13353987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2067752A Pending JPH03269913A (en) | 1990-03-16 | 1990-03-16 | Superconducting wire rod and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03269913A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6459712A (en) * | 1987-08-28 | 1989-03-07 | Sumitomo Electric Industries | Superconductor material |
| JPS6483654A (en) * | 1987-09-26 | 1989-03-29 | Reiko Kk | Manufacture of superconducting thin film and transcribing material therefor |
-
1990
- 1990-03-16 JP JP2067752A patent/JPH03269913A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6459712A (en) * | 1987-08-28 | 1989-03-07 | Sumitomo Electric Industries | Superconductor material |
| JPS6483654A (en) * | 1987-09-26 | 1989-03-29 | Reiko Kk | Manufacture of superconducting thin film and transcribing material therefor |
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