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1. 发明专利

DE69023403D1 未知
公开(公告)号：DE69023403D1
公开(公告)日：1995-12-14
申请号：DE69023403
申请日：1990-07-20
申请人： HITACHI LTD , HITACHI CABLE
发明人： TADA NAOFUMI , IIDA FUMIO , TAKAHASHI RYUKICHI , MAKI NAOKI , SAKAI SHUJI , HOTTA YOSHIJI
IPC分类号： H01L39/24 , H01L39/14
摘要： A superconductor has an aluminum area (4) at the center in the cross section of said conductor therein and copper-covered multifilamentary NbTi composite conductor (2) at the peripheral parts of the cross section formed there around. The cross-sectional area ratio of (Cu+Al)/NbTi is in the range of 0.5 to 3.0 and the cross-sectional area ratio of Al/Cu is in the range of 0.05 to 0.5. This superconductor is provided by a method comprising the first step of providing a superconductor-copper composite hollow body in which copper films are applied around the superconductors, the second step of area reducing said composite hollow body, the third step of heat treating said body, the fourth step of inserting an aluminum body into the hollow of said hollow body, the fifth step of subjecting the body to working such as drawing, and the sixth step of subjecting the body to working such as twisting, forming or the like, an additional area reduction being carried out, if necessary, subsequent to the third step. A superconducting coil is made using the superconductor, and the coil is used for a magnetically levitated vehicle or a nuclear magnetic resonance apparatus.

2. 发明专利

DE69023403T2 未知
公开(公告)号：DE69023403T2
公开(公告)日：1996-07-11
申请号：DE69023403
申请日：1990-07-20
申请人： HITACHI LTD , HITACHI CABLE
发明人： TADA NAOFUMI , IIDA FUMIO , TAKAHASHI RYUKICHI , MAKI NAOKI , SAKAI SHUJI , HOTTA YOSHIJI
IPC分类号： H01L39/24 , H01L39/14
摘要： A superconductor has an aluminum area (4) at the center in the cross section of said conductor therein and copper-covered multifilamentary NbTi composite conductor (2) at the peripheral parts of the cross section formed there around. The cross-sectional area ratio of (Cu+Al)/NbTi is in the range of 0.5 to 3.0 and the cross-sectional area ratio of Al/Cu is in the range of 0.05 to 0.5. This superconductor is provided by a method comprising the first step of providing a superconductor-copper composite hollow body in which copper films are applied around the superconductors, the second step of area reducing said composite hollow body, the third step of heat treating said body, the fourth step of inserting an aluminum body into the hollow of said hollow body, the fifth step of subjecting the body to working such as drawing, and the sixth step of subjecting the body to working such as twisting, forming or the like, an additional area reduction being carried out, if necessary, subsequent to the third step. A superconducting coil is made using the superconductor, and the coil is used for a magnetically levitated vehicle or a nuclear magnetic resonance apparatus.

3. 发明专利

JPH08209282A NIOBIUM-ALUMINUM BASED A15 TYPE SUPERCONDUCTING WIRE AND ITS PRODUCTION 失效
公开(公告)号：JPH08209282A
公开(公告)日：1996-08-13
申请号：JP1577095
申请日：1995-02-02
申请人： HITACHI LTD , HITACHI CABLE
发明人： WATANABE HIROKO , AIHARA KATSUZO , SUZUKI TAKAAKI , YOSHIDA TAKASHI , SAKAI SHUJI , IWAKI GENZO , FUKUDA KUNIHIRO
IPC分类号： C22F1/00 , C22C27/02 , H01B12/10 , H01B13/00
摘要： PURPOSE: To provide a Nb-Al based A15 type superconducting wire excellent in superconductive property in high electric field and the producing method. CONSTITUTION: In the Nb-Al based A15 type superconducting wire, the existing ratio of different phase other than the Nb-Al based A15 type superconductor in a superconducting filament is controlled to

4. 发明专利

JPH03119613A MANUFACTURE OF AL STABILIZED SUPERCONDUCTIVE WIRE 失效
公开(公告)号：JPH03119613A
公开(公告)日：1991-05-22
申请号：JP25543689
申请日：1989-09-30
申请人： HITACHI LTD , HITACHI CABLE
发明人： TAKAHASHI RYUKICHI , TADA NAOFUMI , HOTTA YOSHITOSHI , SAKAI SHUJI
IPC分类号： C22F1/00 , H01B12/10 , H01B13/00
摘要： PURPOSE:To prevent a heat diffusion reaction from generating between Cu and Al without using a special reaction-proof material and to improve the facility in a machining process by obtaining a hollow body into which superconductive materials are compoundly integrated, by inserting Al into the hollow part after an age heat treatment, and by effecting an area reduction process, twist, molding process, etc. CONSTITUTION:In using both Cu and Al as compound stabilized base materials and obtaining an Al stabilized superconductive wire including Al in the cross section center, a hollow body into which superconductive materials of Cu, NbTi, etc., are compoundly integrated is given an age heat treatment. Then after Al insertion of into the hollow part the hollow body is given a area reduction process, twist, molding process, etc. In the process until the Al insertion after the age heat treatment, the area reduction process ratio is 50% to 90%. The area reduction ratio after the Al insertion should be 50% or more.

5. 发明专利

JPH08203725A SUPERCONDUCTING MAGNET 失效
公开(公告)号：JPH08203725A
公开(公告)日：1996-08-09
申请号：JP867595
申请日：1995-01-24
申请人： HITACHI LTD , HITACHI CABLE
发明人： SAEKI MITSURU , JIYURIAN BURODEI , USAMI SABURO , SAKAI SHUJI
IPC分类号： H01F6/00
摘要： PURPOSE: To provide a superconducting magnet where the superconductor will not shrink during curing and makes it possible to inhibit the generation of a superconductivity loss even only once at the most before a rated current is energized without contracting a superconductor when it is cured. CONSTITUTION: In a superconducting magnet where a surrounding surface of a superconductor 1 is coated with a film 5 having a compound bonding layer and the coated material is wound along a specified locus, thereby forming a coil 2 which generates a magnetic field while the coil 2 is arranged to have a linear part or a gentle curved part while the compound bonding layer is cured in a high temperature tank after the formation of a coil winding and each of the superconductors is bonded and constituted, the superconductors 1 are defined as a conductor which is annealed only at the stage of a superconducting wire 4.

6. 发明专利

JPH0353414A SUPERCONDUCTIVE WIRE ROD AND SUPERCONDUCTIVE COIL 失效
公开(公告)号：JPH0353414A
公开(公告)日：1991-03-07
申请号：JP18736289
申请日：1989-07-21
申请人： HITACHI LTD , HITACHI CABLE
发明人： TADA NAOFUMI , IIDA FUMIO , TAKAHASHI RYUKICHI , MAKI NAOKI , SAKAI SHUJI
IPC分类号： A61B5/055 , H01B12/10 , H01F6/06 , H01F27/28
摘要： PURPOSE:To reduce quenching at the time of high-speed float transit while improving reliability by specifying a sectional area ratio of (Cu + Al)/NbTi, and a sectional area ratio of Al/Cu. CONSTITUTION:A sectional area ratio of (Cu + Al) NbTi 3 of a superconductive wire rod having the finest multi core of NbTi coated with Al 4 built in the cross-sectional central part of a superconductive wire rod 1 and Cu formed on a cross-sectional peripheral part of the superconductive rod 1 shall be 0.5 to 3.0, while a sectional area ratio of Al/Cu shall be 0.05 to 0.5. Accordingly, even when a matrix ration of the wire rod is small, coil current density can be increased so that float force can be increased due to the small size and light weight of a superconductive coil for a magnetic leviation train. Thereby, provided the leviation force is constant, high-speed leviation transit becomes possible by means of the superconductive coil of the smaller magnetomotive force while reducing manufacturing cost of the coil increasing the number of passengers per vehicle as well preventing quenching of the superconductive coil on the car.

7. 发明专利

JP2004082145A Device and method for binding metal plate 审中-公开
公开(公告)号：JP2004082145A
公开(公告)日：2004-03-18
申请号：JP2002243851
申请日：2002-08-23
申请人： Hitachi Cable Ltd , 日立電線株式会社
发明人： YOSHIKI TOMIO , SHIBATA MASAHIRO , KOBAYASHI TAKESHI , MIYAMOTO KOICHI , MURAYAMA HIDEO , TAKADA AKIRA , SAKAI SHUJI , SUZUKI YOICHI
IPC分类号： B21D39/02
摘要： PROBLEM TO BE SOLVED: To provide a metal plate binding device for binding a plurality of metal plates in a flat condition with an simple mechanism without using any additional material, and realizing an efficient and automatic operation in a metal plate carrying and feeding device.
SOLUTION: A plurality of overlapped electrolytic copper plates 2 are placed on a steel surface plate 1 so that four corners thereof are arranged on each steel block 3, a shaft of a hydraulic cylinder is lowered, and the electrolytic copper plates 2 are pressed by a steel surface plate 5 fixed to a tip of the shaft. Four corners of the plurality of overlapped electrolytic copper plates 2 are bent by this pressure in a substantially vertical state to form a projection 4. Then, the shaft of each hydraulic cylinder 9 is protruded in a direction of an arrow 12 to bend the uppermost electrolytic copper plate 2 to a surface part thereof while pressing each projection 4 by a piece 8 fixed to the tip of the shaft. The plurality of overlapped electrolytic copper plates 2 are integrated with each other to form a bundle of the electrolytic copper plates.
COPYRIGHT: (C)2004,JPO

8. 发明专利

JPH11162259A CONDUCTOR FOR HIGH MAGNETIC FIELD MAGNET 失效
公开(公告)号：JPH11162259A
公开(公告)日：1999-06-18
申请号：JP32770097
申请日：1997-11-28
申请人： HITACHI CABLE
发明人： NAKAGAWA KAZUHIKO , IWAKI GENZO , SAKAI SHUJI , YAMANAKA TSUTOMU
IPC分类号： H01F7/06 , H01B5/02 , H01B7/00
摘要： PROBLEM TO BE SOLVED: To hold high conductivity and superior mechanical strength so as to easily obtain a high magnetic field by composing a high strength and high magnetic field conductive material layer of a Ta/Cu dispersed reinforced complex that is a mixture of Ta powder and Cu powder. SOLUTION: An industrial pure Ta sheet and an industrial oxygen free Cu sheet are laminated to form two layers, the laminate is closely wound on an industrial oxygen free Cu core material 1, they are inserted into an industrial oxygen free Cu pipe, and extrusion processing or extension wire processing is applied. A single-wire Ta/Cu dispersed reinforced laminate complex is obtained. In this single wire Ta/Cu dispersed reinforced laminate complex, a Ta/Cu dispersed reinforced laminate complex layer 2 is 90 Vol.%, and a Cu cover layer 3 is 10 Vol.%. Next, this single wire Ta/Cu dispersed reinforced laminate layer complex forms a single hexagonal Ta/Cu dispersed reinforced laminate complex through a hexagonal dice. In this case, high strength and high magnetic field electric material layer contains 20 Vol.% or more in a cross-section area.

9. 发明专利

JPH10303016A CONDUCTOR FOR HIGH-MAGNETIC-FIELD MAGNET 失效
公开(公告)号：JPH10303016A
公开(公告)日：1998-11-13
申请号：JP10612597
申请日：1997-04-23
申请人： HITACHI CABLE
发明人： NAKAGAWA KAZUHIKO , YAMANAKA TSUTOMU , SAKAI SHUJI , IWAKI GENZO
IPC分类号： C22C9/00 , H01F5/00 , H01F7/06
摘要： PROBLEM TO BE SOLVED: To provide a conductor for high-magnetic-field magnet in which high tensile strength and conductivity at a room temperature are provided and generation of a high magnetic field is not affected by a using environmental temperature. SOLUTION: An Nb/Cu two-phase dispersed reinforcement type complex material layer 3 comprising two phases of Nb or Nb alloy and Cu or Cu alloy is formed around a core material 2, and a covering layer 4 is formed on the outer periphery of the Nb/Cu two-phase dispersed reinforcement type complex material layer 3, in this way a complex single core material 1 is constituted. In the complex single core material 1, tensile strength at a room temperature is 0.98 Gpa or above, conductivity is 70% or more, and a ratio of resistance values in a room temperature and a temperature of liquid nitrogen (room temperature resistance value/liquid-nitrogen-temperature resistance value) is 6 or above.

10. 发明专利

JPH10156579A SN SOLDER 失效
公开(公告)号：JPH10156579A
公开(公告)日：1998-06-16
申请号：JP31327796
申请日：1996-11-25
申请人： HITACHI CABLE
发明人： HOSONO FUMIKAZU , SAKAI SHUJI , ABE HAJIME
IPC分类号： B23K35/26
摘要： PROBLEM TO BE SOLVED: To improve the solder wettability in an Sn solder. SOLUTION: In an Sn solder containing Pb or Ag in Sn, In is added to Sn-Pb or Sn-Ag to form the Sn solder having the composition of Sn-Pb-In or Sn-Ag-In. The solder wettability is improved by adding In, and the contact property is improved and heat generation can be suppressed when it is used in a BGA-type semi-conductor device.

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