[특허]Manufacturing process of superconducting wire and retainer for heat treatment

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01L-039/24
출원번호	US-0559377 (2000-04-27)
우선권정보	JP-0127886 (1999-05-10); JP-0185789 (1999-06-30)
발명자 / 주소	Kobayashi, Shinichi
출원인 / 주소	Sumitomo Electric Industries, Ltd.
대리인 / 주소	Foley & Lardner
인용정보	피인용 횟수 : 10 인용 특허 : 14

초록 ▼

It is an object to provide a process for producing a superconducting wire without defects, such as deterioration of characteristics and deformation, in which a superconducting wire having a length of 1 km or more and a high critical electric current density is easily subjected to heat treatment. The

It is an object to provide a process for producing a superconducting wire without defects, such as deterioration of characteristics and deformation, in which a superconducting wire having a length of 1 km or more and a high critical electric current density is easily subjected to heat treatment. The first invention comprises a step of inserting a metallic sheath wire, which is formed by filling a superconducting material in a metallic sheath, into a metallic tube having an inner diameter larger than an outer diameter or a width of the metallic sheath wire; and a step of conducting heat treatment under such a condition in that the superconducting wire is wound to overlap a cylindrical fixture to prevent contact with each other while controlling the interior of the metallic tube. The second invention uses a ceramic board on the heat treatment of a pancake formed by winding the metallic sheath wire on a core. Since the binder of the ceramic board disappears, and the powder or fibers are in a freely movable state, the ceramic board does not restrict shrinkage and expansion of the wire, so as not to cause deformation of the wire. Thus, a long length wire having a length of 1 km or more can be subjected to heat treatment. The characteristics can be improved by conducting the heat treatment under the prescribed conditions of oxygen partial pressure and temperature.

대표청구항 ▼

It is an object to provide a process for producing a superconducting wire without defects, such as deterioration of characteristics and deformation, in which a superconducting wire having a length of 1 km or more and a high critical electric current density is easily subjected to heat treatment. The

It is an object to provide a process for producing a superconducting wire without defects, such as deterioration of characteristics and deformation, in which a superconducting wire having a length of 1 km or more and a high critical electric current density is easily subjected to heat treatment. The first invention comprises a step of inserting a metallic sheath wire, which is formed by filling a superconducting material in a metallic sheath, into a metallic tube having an inner diameter larger than an outer diameter or a width of the metallic sheath wire; and a step of conducting heat treatment under such a condition in that the superconducting wire is wound to overlap a cylindrical fixture to prevent contact with each other while controlling the interior of the metallic tube. The second invention uses a ceramic board on the heat treatment of a pancake formed by winding the metallic sheath wire on a core. Since the binder of the ceramic board disappears, and the powder or fibers are in a freely movable state, the ceramic board does not restrict shrinkage and expansion of the wire, so as not to cause deformation of the wire. Thus, a long length wire having a length of 1 km or more can be subjected to heat treatment. The characteristics can be improved by conducting the heat treatment under the prescribed conditions of oxygen partial pressure and temperature.

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이 특허에 인용된 특허 (14) 인용/피인용 타임라인 분석

Jones Thomas E. (Spring Valley CA) McGinnis Wayne C. (San Diego CA) Briggs J. Scott (Carlsbad CA), Ceramic superconducting magnet using stacked modules.
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Okada Michiya,NLX ; Tanaka Kazuhide,JPX ; Yuasa Toyotaka,JPX ; Matsumoto Toshimi,JPX ; Aihara Katsuzo,JPX ; Matsuda Shinpei,JPX, Elongate superconductor elements comprising oxide superconductors, superconducting coils and methods of making such ele.
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Topchiashvili M. I. ; Rokhvarger A. E., High temperature superconductor composite material.
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Sato Kenichi (Osaka JPX), High-temperature superconductive conductor winding.
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Muranaka Koji,JPX ; Sato Kenichi,JPX ; Hikata Takeshi,JPX, Method for preparing high-temperature superconducting wire.
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Sawada Syoryu (Yokohama JPX) Higuchi Makoto (Yokohama JPX) Hizawa Takayuki (Yokohama JPX), Method for production of elongated ceramic sheets.
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Mukai Hidehito,JPX ; Shibuta Nobuhiro,JPX, Method of heat treating oxide superconducting wire.
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Okada Michiya (Mito JPX) Nishiwaki Ryou (Hitachi JPX) Wadayama Yoshihide (Hitachi JPX) Matsumoto Toshimi (Katsuta JPX) Aihara Katsuzo (Hitachiota JPX) Kamo Tomoichi (Ibaraki JPX) Matsuda Shinpei (Iba, Oxide superconductor, superconducting wire and coil using the same and method of production thereof.
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Steven Hughson ; Elliott Thompson, Process for heat treating superconductor wire.
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Kato Takeshi,JPX, Superconducting coil.
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Aized Dawood ; Schwall Robert E., Superconducting magnetic coil.
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Kawamura Toshimi (Kobe JPX) Satow Takashi (Kobe JPX), Superconducting solenoid and method of making same.
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Mookerjee Sumit (Cedar Hill TX) Weijun Shen (Beijun TX CNX) Yager Billy (Waxahachie TX), Uniformly wound superconducting coil and method of making same.
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Brown Robert L. (Kingston TN), Winding a multi-pancake magnet from a continuous conductor.
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Lee,Hee Gyoun; Li,Yijie; Selvamanickam,Venkat, Rare-earth-Ba-Cu-O superconductors and methods of making same.
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