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81. 发明专利

JPS62224006A ELECTRODE FOR SUPERCONDUCTING MAGNET 失效
公开(公告)号：JPS62224006A
公开(公告)日：1987-10-02
申请号：JP6805286
申请日：1986-03-26
申请人： HITACHI CABLE
发明人： SAKAI SHUJI , KAWAMATA OSAMU , MORIAI HIDESUMI
IPC分类号： H01F6/00 , H01L39/02
摘要： PURPOSE:To make it possible to increase the capacity of conduction or reduce the amount of evaporation of herium due to the heat intrusion by making the inside surface of a tubular electrode uneven in shape. CONSTITUTION:The inside of a tubular material 1 consisting of phospher deoxided copper is provided with a plurality of continuous grooves 2 in the direction of the axis of the tube by pull out machining, and whose inside surface is coated with an insulative material 4 to be an electrode. In this example, making the inside surface area approx. 2.5 times larger that of flat tube by groove machining makes the apparent amount of heat conduction approx. 2.5 times larger. On the other hand, if the cross-sectional area of the tubular material 1 is the same as that of the flat tube, it is possible to increase the capacity of conduction approx. 1.5 times; if the capacity of conduction is constant, it is possible to reduce the cross-sectional area approx. 1/2.5. Thus, it is possible to substantially reduce the amount of copper to be used or the amount of herium evaporating due to the heat intrusion.

82. 发明专利

JPS6191806A Manufacture of force-cooled superconducting cable 失效
标题翻译：强制超声波电缆的制造
公开(公告)号：JPS6191806A
公开(公告)日：1986-05-09
申请号：JP21089884
申请日：1984-10-08
申请人： Hitachi Cable
发明人： KIYOFUJI MASAHIRO , SAKAI SHUJI , OKA KOICHI , MASUKO RYOICHI , MORIYA HIDESUMI
IPC分类号： H01B12/16 , H01B13/00
CPC分类号： Y02E40/647

83. 发明专利

JP2011190540A Dilute copper alloy wire, dilute copper plated wire and dilute copper twisted wire 有权
标题翻译：稀释铜合金线，稀土铜线和稀土铜线
公开(公告)号：JP2011190540A
公开(公告)日：2011-09-29
申请号：JP2011103376
申请日：2011-05-06
申请人： Hitachi Cable Ltd , Hitachi Seisen Kk , 日立製線株式会社 , 日立電線株式会社
发明人： AOYAMA MASAYOSHI , WASHIMI TORU , SAKAI SHUJI , SATO TAKAHIRO , ABE HIDENORI
IPC分类号： C22C9/00 , C22F1/00 , C22F1/08 , H01B5/02 , H01B5/08
摘要： PROBLEM TO BE SOLVED: To provide a dilute copper alloy wire having high productivity and excellent in conductivity, softening temperature and surface quality. SOLUTION: The dilute copper alloy wire includes 2 to 12 mass ppm of sulfur, 2 to 30 mass ppm of oxygen, and 4 to 55 mass ppm of Ti, and its conductivity is ≥98% IACS, and its semi-softening temperature is 130 to 148°C. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种生产率高，导电性，软化温度和表面质量优异的稀铜合金丝。解决方案：稀铜合金线包含2〜12质量ppm的硫，2〜30质量ppm的氧，4〜55质量ppm的Ti，导电率≥98％IACS，其半软化温度为130〜148℃。版权所有（C）2011，JPO＆INPIT

84. 发明专利

JPH10144162A NB3AL SYSTEM COMPOUND SUPERCONDUCTIVE WIRE ROD AND ITS MANUFACTURE 失效
公开(公告)号：JPH10144162A
公开(公告)日：1998-05-29
申请号：JP30303696
申请日：1996-11-14
申请人： HITACHI CABLE
发明人： FUKUDA KUNIHIRO , IWAKI GENZO , SAKAI SHUJI
IPC分类号： H01B12/10 , H01B13/00
摘要： PROBLEM TO BE SOLVED: To provide an Nb3 Al system compound superconductive wire rod having a high producing efficiency of an Nb3 Al near the stoichiometry, and a high critical current intensity in a high magnetic field. SOLUTION: A pure Nb or an Nb group alloy sheet member 1, and a pure Al or an Al group alloy sheet member 2 are laminated to form an Nb/Al lamenating body 3, and the Nb/Al laminating body 3 is wound on a winding core by making the above pure Al or the Al group alloy sheet member 2 at the inner side. After the winding core is removed after the Nb/Al laminating body 3 is wounded, a rapid heating is applied for a short time at a high temperature 1,500 to 2,000 deg.C by a self current applying heating, and then, a sudden cooling is applied to form an Nb-Al oversuturated solid solution, and a secondary heating process (ageing heating process) is applied to the Nb-Al oversaturated solid solution at the temperature 650 to 1,050 deg.C.

85. 发明专利

JPH10116723A SUPERCONDUCTING MAGNET 失效
公开(公告)号：JPH10116723A
公开(公告)日：1998-05-06
申请号：JP26879996
申请日：1996-10-09
申请人： HITACHI CABLE
发明人： MIYASHITA KATSUMI , SAKAI SHUJI , SUZUKI EIJI
IPC分类号： H01F5/06 , H01F6/00
摘要： PROBLEM TO BE SOLVED: To simplify superconducting fixed winding and contrive to reduce manufacturing cost as a resin impregnating step is unrequited, by a method wherein, in a superconducting magnetic in which a method wherein, in a superconducting magnetic which a superconducting wire rod having an enamel insulation layer in an outermost layer is wound in a coil form, an adhesion layer is formed in an outer periphery of the enamel insulation layer. SOLUTION: In a superconducting wire rod 1, an enamel insulation layer 3 of a specific thickness t1 and an adhesion layer (self-fusion layer) 4 of a specific thickness t2 are formed sequentially on an outer periphery of a superconducting element 2 of a specific radius R1 . As a raw material of the enamel insulation layer 3, for example, formal system, nylon enamel of the like is listed. As a raw material of the adhesion layer 4, for example, polyvinyl butyral resin, copolymer nylon, phenoxy resin or the like is listed. As a type of the superconducting element 2, for example, a Cu/Nb-Ti wire rod covered with Cu on an outer periphery of Nb-Ti, a Cu/Cu-Ni/Nb-Ti wire rod covered with Cu-Ni, Cu in this order on an outer periphery of Nb-Ti, or the like is listed.

86. 发明专利

JPH09204830A MANUFACTURE OF NB3AL SUPERCONDUCTING WIRE 失效
公开(公告)号：JPH09204830A
公开(公告)日：1997-08-05
申请号：JP1275296
申请日：1996-01-29
申请人： HITACHI CABLE
发明人： FUKUDA KUNIHIRO , IWAKI GENZO , SAKAI SHUJI
IPC分类号： B21F19/00 , C22F1/00 , H01B12/10 , H01B13/00
摘要： PROBLEM TO BE SOLVED: To enhance critical current density characteristic by applying the mechanical stress of the specified range to a composite body when an Nb-Al super-saturated solid solution is formed by quickly heating and quickly cooling the composite body of Nb or an Nb group alloy and Al or an Al group alloy, and by forming an Nb3 Al layer by secondary heat treatment. SOLUTION: A composite body formed by winding Nb or an Nb group alloy and Al or an Al group alloy on an Nb winding core is inserted into an Nb pipe, then inserted into a Cu pipe, and worked in a hexagon, then the Cu outer cover is removed to obtain a single core wire 1. Plural core wires 1 are inserted into a pure Nb pipe, further inserted into a Cu-Ni alloy pipe, then formed into the specified wire diameter by drawing, and the Cu-Ni pipe of the outer cover is removed to form a multi-core wire 3. Rapid heat-rapid cool treatment is applied to the multi-core wire 3 to form an Nb-Al saturated solid solution in the multi-core wire 3, and in the treatment process, bending work is repeated laterally and vertically to the multi-core wire 3 to add mechanical stress of 5.0×10 to 1.0×10 to the composite body. An Nb3 Al based superconducting wire with high critical current density characteristics can be obtained.

87. 发明专利

JPH09204826A NB3AL SUPERCONDUCTING WIRE AND ITS MANUFACTURE 失效
公开(公告)号：JPH09204826A
公开(公告)日：1997-08-05
申请号：JP1274696
申请日：1996-01-29
申请人： HITACHI CABLE
发明人： IWAKI GENZO , FUKUDA KUNIHIRO , KIMURA MORIO , SAKAI SHUJI
IPC分类号： B21F19/00 , C22F1/00 , H01B12/04 , H01B12/10 , H01B13/00
摘要： PROBLEM TO BE SOLVED: To provide an Nb3 Al superconducting wire excellent in the critical current density characteristic. SOLUTION: An Nb/Al composite structure is formed so that Al phase is dispersed in fiber form in an Nb matrix. For this purpose, a pure Nb or Nb- based alloy sheet for industrial use containing no more than 15 crystal particles across the plate thickness is used to shape an Nb/Al laminate composite which constitutes a filament, and a hydrostatic pressure extrusion is adopted when a mono-filament wire is to be formed after shaping of the Nb/Al laminate composite.

88. 发明专利

JPH09150319A ELECTRIC DISCHARGE MACHINING ELECTRODE WIRE 失效
公开(公告)号：JPH09150319A
公开(公告)日：1997-06-10
申请号：JP31229095
申请日：1995-11-30
申请人： HITACHI CABLE
发明人： IWAKI GENZO , SAKAI SHUJI , KIMURA MORIO , NAKAGAWA KAZUHIKO , YAMANAKA TSUTOMU , KIMURA TAKAMITSU
IPC分类号： B23H7/02 , B23H7/08
摘要： PROBLEM TO BE SOLVED: To inexpensively realize high accuracy and high speediness in electric discharge machining by a device which can obtain an electrode wire provided with a characteristic of high tension strength and high conductivity, even when a Cu-Zn alloy layer is arranged in the outermost layer, by coaxially forming a dispersed strengthening compound unit layer formed of two phases of Nb (or Nb alloy) and Cu (or Cu alloy) relating to a core material. SOLUTION: An Nb wire 101 is used in a core material, an Nb/Cu two-phase dispersion strengthening compound unit layer 102 and a Cu-Zn alloy layer 103 are successively coaxially formed relating to this Nb wire 101. In the Nb/Cu two-phase dispersion strengthening compound unit layer 102, a two-phase dispersion strengthening compound unit by Nb, Cu has a dispersion composition, the unit has large tensile strength by this dispersion composition. Further, Cu is provided even the dispersion composition is generated, the dispersion strengthening compound unit layer 102 has high conductivity. Ordinary temperature tensile strength of the core material is set to 10kgf/mm in an annealing condition.

89. 发明专利

JPH09129044A SUPERCONDUCTOR 失效
公开(公告)号：JPH09129044A
公开(公告)日：1997-05-16
申请号：JP28594195
申请日：1995-11-02
申请人： HITACHI CABLE
发明人： HOSONO FUMIKAZU , SAKAI SHUJI
IPC分类号： C22C9/06 , H01B12/10 , H01B13/00
摘要： PROBLEM TO BE SOLVED: To provide a superconductor in which the bonding loss can be significantly reduced by covering the surface of a superconductive element wire with a Cu-Ni alloy containing a specified quantity of Ni. SOLUTION: A superconductor is, for example, formed by alternately arranging a superconductive element wire 1 formed of a number of Nb-Ti superconductive filaments covered with stabilized copper and a stabilized copper element wire 3 on the circumference of a stainless tape 4 as center. The surface of this superconductive element wire is covered with a thin film of Cu-Ni alloy containing 0.205wt.% of Ni. The superconductor 1 is formed of a stranded wire consisting of a plurality of bundles. Thus, the equivalent resistance value is increased by the presence of the film or interposed layer, while the bonding loss time constant is minimized, and the connecting loss is consequently reduced.

90. 发明专利

JPH09106715A EXTREMELY THIN MULTIPLE CORE NB-TI SUPERCONDUCTING WIRE 失效
公开(公告)号：JPH09106715A
公开(公告)日：1997-04-22
申请号：JP26450495
申请日：1995-10-12
申请人： HITACHI CABLE
发明人： MIYASHITA KATSUMI , SAKAI SHUJI
IPC分类号： B21F19/00 , B21C1/22 , H01B12/10
摘要： PROBLEM TO BE SOLVED: To prevent a barrier from being broken or deformed in extrusion and extension wire processing in the conventional extremely thin multiple core Nb-Ti superconducting wire. SOLUTION: A Nb-Ti superconducting wire of 0.5μm or less in diameter of a Nb-Ti filament 5 provided with a composite barrier layer composed of a Nb layer 7 and a Ta layer 8 around the Nb-Ti filament 5 is obtained. Preferably, the ratio of thickness between the Ta layer 7 and the Nb layer 8 in the composite barrier is 0.2 to 5, and the entire thickness of the composite barrier layer is 0.5% to 5% of the diameter of the filament 5.

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