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1. 发明专利

JPH10326634A METHOD FOR CONNECTING SUPERCONDUCTOR 失效
公开(公告)号：JPH10326634A
公开(公告)日：1998-12-08
申请号：JP13529197
申请日：1997-05-26
申请人： TOSHIBA CORP , TOSHIBA ITEC KK
发明人： HIRAGISHI MASAHIRO , ONO MICHITAKA , TAKIGAMI HIROYUKI , FUSE TOSHIAKI , SHIBAYAMA KAZUHITO , OSAKI OSAMU , SHIBUYA SUMIICHI , YAMADA MASAHIRO , SASAKI TOMOYUKI , OGATA TAISEI
IPC分类号： H01R4/68
摘要： PROBLEM TO BE SOLVED: To surely connect a superconductor wire with a pipe-like electrode, to secure a sufficient connection strength, to reduce electric resistance and to reduce Joule loss of a connected part by metallically connecting the superconductor wire with the pipe-like electrode. SOLUTION: The conduit 12 of a part necessary for connecting superconductors 11 and 11 is eliminated, an exposed superconductor wire 13 is covered with a pipe-like electrode 14, a connecting material 15 is inserted between the superconductor wire 13 and the pipe-like electrode 14 and these are metallically connected. For the connecting material 15, iridium contained silver solder or copper solder or high melting point solder solution-treated in a superconductive heat treating temperature is used. Such a connecting material 15 is inserted between the superconductor wire 13 and the pipe-like electrode 14, a superconductor core wire group is formed by reducing the pipe-like electrode 14, heat treatment is performed for generating Nb3Sn, the connecting material 15 is solution-treated and the superconductor wire 13 and the pipe-like electrode 14 are metallically connected.

2. 发明专利

JP2002168746A REMAINING LIFE ESTIMATION METHOD FOR MAGNET COIL 失效
公开(公告)号：JP2002168746A
公开(公告)日：2002-06-14
申请号：JP2000366331
申请日：2000-11-30
申请人： TOSHIBA CORP
发明人： FUKUDA DAIJIRO , TANAKA AKIRA , OSAKI OSAMU
IPC分类号： G01N3/32
摘要： PROBLEM TO BE SOLVED: To provide a remaining life estimation method for a magnet coil capable of stably operating superconductive magnet coil under accurate measurement data by facilitating the measurement of the data to improve the measurement accuracy. SOLUTION: This remaining life estimation method for a magnet coil comprises: a shearing fatigue master curve forming process ST5 for graphing the relationship between the shearing stress among respective element wires W1, W2, W3,... of the magnet coil 1 and the number of stops and startups based on data measured from a corner part having the highest stress of a test machine and the electromagnetic power P thereof; and a remaining life estimation process ST6 for comparing the number of stops and startups within the master curve from the shearing fatigue master curve forming process ST5 with the actual number of startups and stops of the magnet coil 1 and for judging its difference to be the remaining life of the magnet coil 1.

3. 发明专利

JPH11144942A SUPERCONDUCTING COIL CONNECTION STRUCTURE 失效
公开(公告)号：JPH11144942A
公开(公告)日：1999-05-28
申请号：JP30263797
申请日：1997-11-05
申请人： JAPAN ATOMIC ENERGY RES INST , TOSHIBA CORP
发明人： TSUJI HIROSHI , ANDO TOSHINARI , TAKAHASHI YOSHIKAZU , NUNOTANI YOSHIHIKO , IKEDA TATSUMI , OSAKI OSAMU , SHIBUYA SUMIICHI , SASAKI TOMOYUKI , FUJIOKA TSUTOMU , OGATA TAISEI , NAKANO MASANOBU
IPC分类号： H01R4/68 , H01F6/06
摘要： PROBLEM TO BE SOLVED: To restrain deformation, reduce an electric resistance and improve a cooling efficiency, by providing two guide tubes encompassing conductors, a spacer for restraining deformation of the conductors in the direction of diameter, and a hairpin conductor case, in a cap. SOLUTION: Abutment junction parts 6a and 6b are formed at both ends of a hairpin conductor 5 which is formed by twisting superconducting cables of superconducting conductor lead-out parts 4a and 4b arrayed in parallel and a number of superconducting cables and shaped by bending in a hairpin shape. A cap 7 for encompassing these abutment junction parts and the hairpin conductor 5 and perfectly closing a refrigerant is joined to the superconducting conductor lead-out parts 4a and 4b. In the cap, guide tubes which separately encompass the abutment junction parts 6a and 6b at two positions arrayed in parallel are provided. Moreover, a spacer for restraining deformation of superconducting conductors 3 in the direction of diameter is formed on the outer circumferential parts of the superconducting conductors 3, and a hairpin conductor case 14 for maintaining the shape of the hairpin conductor 5 and forming a refrigerant path is provided.

4. 发明专利

JPH04199703A MAGNET APPARATUS FOR IMAGING DIAGNOSTIC EQUIPMENT OF NUCLEAR MAGNETIC RESONANCE TYPE 失效
公开(公告)号：JPH04199703A
公开(公告)日：1992-07-20
申请号：JP33255090
申请日：1990-11-29
申请人： TOSHIBA CORP
发明人： OSAKI OSAMU , HIRUMACHI TAMIKO
IPC分类号： H01F7/20
摘要： PURPOSE:To obtain a magnet apparatus having a reduced oppressive sensation to be given to a patient and having a reduced leakage magnetic field, by providing an arch-shaped container having an opening part in an upper circumferential part of its container wall part laid horizontally, and by incorporating arch-shaped coils for the magnet therein, and further, by making directions of the currents flowing through the inner and outer arch-shaped coil opposite to each other. CONSTITUTION:In a magnet apparatus for an imaging diagnostic equipment of a nuclear magnetic resonance type wherein a magnetic field is generated in an axial or radial direction, provided is an arch-shaped container 3 having an opening part in an upper circumferential part of its container wall part laid horizontally, and the arch-shaped coils for the magnet are incorporated therein, and further, the directions of the currents flowing through the inner and outer coil are made opposite to each other. Also, the inner arch-shaped coils 1a, 2a are placed somewhat away from the outer arch-shaped coils 1b, 2b, and the magnitudes of the currents flowing through the inner coils 1a, 2a are the same as the corresponding currents flowing through the outer coils 1b, 2b respectively. Therefore, the magnetic fluxes of the inner coils 1a, 2a, which leak to its outside, are canceled by the ones of the outer coils 1b, 2b respectively, and a leakage magnetic field to the external is suppressed. Further, a patient can look at the external from the upper opening part. Thereby, an oppressive sensation of the patient is reduced, and obtained is a magnet apparatus for an imaging diagnostic equipment of a nuclear magnetic resonance type, whose leakage magnetic field is reduced.

5. 发明专利

JPS61180175A ELECTRIC FIELD FORMING DEVICE 失效
公开(公告)号：JPS61180175A
公开(公告)日：1986-08-12
申请号：JP2128885
申请日：1985-02-06
申请人： TOSHIBA CORP
发明人： MURAI SHIGERU , OSAKI OSAMU
IPC分类号： G01T5/12
摘要： PURPOSE:To suppress unstable partial discharging and to prevent the generation of noise, deterioration of the material of an insulator, etc., during measuring operation by fitting metallic wires which are sectioned circularly and used as electrodes in semicircular grooves formed in the surface part of the insulator. CONSTITUTION:Electrodes are arranged at equal intervals on surfaces of insulators which face each other across a space of a uniform electric field so as to obtain the space. In this case, semicircular grooves 9 are formed in the surface part of the insulator on the internal surface of a pressure container 1 and electrodes 10 made of metallic wires which are sectioned circularly are fitted in the grooves 9. When the pitch of the electrodes 10 is about 10mm, the diameter of the metallic wires is preferably about 2-3mm in terms of workability, etc., and the grooves 9 are so formed that just halfs of the metallic wires are buried. Thus, the circularly sectioned metallic wires are used as the electrodes to reduce the intensity of the electric field near the electrodes 10 by about 30% as compared with conventional devices. It is evident that this results in the releasing of electric field congestion, and consequently unstable partial discharging which occurs among the electrodes is suppressed.

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