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1. 发明专利

JPH06208809A OXIDE SUPERCONDUCTING CONDUCTOR 失效
公开(公告)号：JPH06208809A
公开(公告)日：1994-07-26
申请号：JP254893
申请日：1993-01-11
申请人： JAPAN ATOMIC ENERGY RES INST , SUMITOMO ELECTRIC INDUSTRIES
发明人： KATO TAKESHI , SATO KENICHI , ANDO TOSHINARI , ISONO TAKAAKI , TSUJI HIROSHI
IPC分类号： H01B12/10 , H01B12/06 , H01B13/00
摘要： PURPOSE:To minimize the reduction in a critical current density generated when large current is allowed to flow by fitting a superconducting tape wire material into a self magnetic field formed by a current running there so that the angle of the surface of the tape is no more than 60 deg., and by reducing the ratio of the component of a magnetic field perpendicular to the surface of the tape, of the self magnetic field. CONSTITUTION:Oxide or carbonate containing Bi, Pb, Sr, Ca and Cu is mixed, and is pulverized after heat treatment, and the powder thus formed is degasified and is extended into a wire rod of desired diameter. This is then rolled into a fixed thickness of oxide superconducting tape wire material, which are bundled and sintered. For example, 180 pieces of the wire material 1 thus formed are layered in three rows, while all of the 60 pieces of the wire material 1 are placed laterally in the center row, and 10 pieces of the wire material 1 are first placed laterally in the rows of both sides, and then 20 pieces of the wire material 1 are provided in each of the two stages, on which 10 remaining pieces are placed laterally. A conductor can thus be formed compact.

2. 发明专利

JP2001358009A FORCED REFRIGERATED SUPERCONDUCTING COIL DEVICE 失效
公开(公告)号：JP2001358009A
公开(公告)日：2001-12-26
申请号：JP2000179583
申请日：2000-06-15
申请人： JAPAN ATOMIC ENERGY RES INST
发明人： SUGIMOTO MAKOTO , KATO TAKASHI , ISONO TAKAAKI , TSUJI HIROSHI
IPC分类号： F25D3/10 , H01F6/04 , H01L39/04
摘要： PROBLEM TO BE SOLVED: To provide a forced refrigerated superconducting coil device of simple configuration with high and stable operation where balance in flow-rate distribution is maintained when carrying current. SOLUTION: There are independently provided a heat generating part coolant supply device 10 which supplies a coolant for cooling a superconducting coil 100 to a cooling part 102 where it flows, and a non-heat generating part coolant supply device 14 which supplies a coolant to a support structure 104 which supports the superconducting coil and the cooling part and where a coolant for cooling itself flows.

3. 发明专利

JP2001176722A WINDING METHOD OF HEAT-TREATED SUPERCONDUCTOR 失效
公开(公告)号：JP2001176722A
公开(公告)日：2001-06-29
申请号：JP35889299
申请日：1999-12-17
申请人： MITSUBISHI ELECTRIC CORP , JAPAN ATOMIC ENERGY RES INST
发明人： HASEGAWA MITSURU , MINATO TSUNEAKI , TSUDA YOSHIYUKI , ANDO TOSHINARI , MATSUI KUNIHIRO , ISONO TAKAAKI , TSUJI HIROSHI
IPC分类号： H01F41/06 , H01B12/00 , H01F6/06
摘要： PROBLEM TO BE SOLVED: To provide a winding method of a superconductor which has been heat-treated, where bending strain is controlled without having to move a drum for conductor supply. SOLUTION: In this winding method of a superconductor which has been heat-treated, the superconductor is wound with a drum for conductor supply which can be rotated at a fixed position, led out from the drum while bending strain is restricted and disposed at a winding start position on a winding frame. As the winding work progresses, bending strain is estimated by analysis using a finite element method. On the basis of estimation, by rotating the drum at a constant position, the superconductor is wound while bending strain is adjusted, and a winding is formed. When bending strain is adjusted, the position of a conductor supplying port, the position of winding to the winding frame and a conductor length between the above positions are adjusted. The lee-out angle of the superconductor in the tangential line direction of the drum and an angle of the superconductor to a tangential line direction of the winding frame at the position of winding are adjusted.

4. 发明专利

JP2000208320A FORCEDLY COOLED SUPERCONDUCTING COIL APPARATUS AND METHOD FOR CONTROLLING FLOW RATE AT ITS CONDUCTION 失效
公开(公告)号：JP2000208320A
公开(公告)日：2000-07-28
申请号：JP827599
申请日：1999-01-14
申请人： JAPAN ATOMIC ENERGY RES INST
发明人： SUGIMOTO MAKOTO , KATO TAKASHI , ISONO TAKAAKI , TSUJI HIROSHI
IPC分类号： H01F6/04 , F25D3/10
摘要： PROBLEM TO BE SOLVED: To provide a forcedly cooled superconducting coil apparatus which will not disturb the flow rate distribution, when the coil apparatus is conducted and a method for controlling flow rate when the coil apparatus is conducted. SOLUTION: A flow rate distributing ratio mcoil/mstr (conduction) while a sperconducting coil 100 is conducted, maintains an initial flow rate indicating time of the helium flow rate characteristic of a cooling section 102, namely, the flow rate distributing ratio mcoil/mstr (non-conduction) when the coil 100 is in a steady state before conduction or during a non-conduction period. In other words, the flow passage resistance of a support structure 104 is controlled by means of a flow control valve 10, so that ratio mcoil/mstr (conduction)=ratio mcoil/mstr (non-conduction) is established to invariably maintain the flow rate distribution to the cooling section 102 and the structure 104.

5. 发明专利

JPH08287752A MANUFACTURE OF SUPERCONDUCTING WIRE MATERIAL 失效
公开(公告)号：JPH08287752A
公开(公告)日：1996-11-01
申请号：JP8568195
申请日：1995-04-11
申请人： JAPAN ATOMIC ENERGY RES INST , HITACHI CABLE
发明人： NISHI MASATAKA , ISONO TAKAAKI , TSUJI HIROSHI , YOSHIDA KIYOSHI , SASAKI KAZUTAKA , MORIAI HIDESUMI , KIKUCHI KENICHI , IWAKI GENZO , SAKAI SHUJI
IPC分类号： B21F19/00 , C22F1/00 , H01B12/10 , H01B13/00
摘要： PURPOSE: To provide a method by which it is possible to obtain an A3 B type superconducting wire material having excellent workability and a small AC loss. CONSTITUTION: Filaments 2 of Nb or Nb base alloy are embedded in a matrix 1 of Cu-Sn group alloy so as to form composite material. The composite material is touched to stabilizing material 5 so as to form a single structure. In the single structure, a Ta layer 3 which produces no superconducting compound cooperating with the single structure by heating treatment is arranged along the whole length of the single structure as a diffusion barrier which separates stabilizing metal 5 from the composite material. In a manufacture of superconducting wire material by which the single structure is heating treated so that Nb or Nb group alloy is allowed to react with the Sn of the matrix 1 so as to form a superconducting compound Nb3 Sn, an Nb layer 4 is arranged between the Ta layer 3 and the stabilizing metal 5 as an additional barrier, and processing is conducted. In that case, as the thickness ratio of Ta and Nb, the range of 1:0.3 to 1:3 is selected.

6. 发明专利

JP2002064014A SUPERCONDUCTIVE CURRENT LEAD 失效
公开(公告)号：JP2002064014A
公开(公告)日：2002-02-28
申请号：JP2000246931
申请日：2000-08-16
申请人： JAPAN ATOMIC ENERGY RES INST , FUJI ELECTRIC CO LTD
发明人： ANDO TOSHINARI , ISONO TAKAAKI , HAMADA KAZUYA , TSUJI HIROSHI , BONO TAKAAKI , KONNO MASAYUKI
IPC分类号： C23C14/14 , H01B12/02 , H01F6/00 , H01L39/04
摘要： PROBLEM TO BE SOLVED: To provide a superconductive current lead which is high in reliability and formed by surely joining a cylindrical support member formed of low- thermal conductivity metal material such as stainless steel to unit conductors formed of oxide superconductive wires arranged on the circumferential surface of the support member by soldering. SOLUTION: A plurality of unit conductors 5 formed of oxide superconductive wires are arranged in array on the circumferential surface of a cylindrical support member 6 formed of low-thermal conductivity metal material such as stainless steel or titanium alloy, and the unit conductors 5 are superposed on the support member 6 in close contact with it and assembled into a superconductive current lead together with the support member 6. A metal thin film 7 of metal selected from gold, silver, copper, tin, zinc or their alloys high in solderability is formed by an evaporation or sputtering method on the surface of the support member 6 joined to the unit conductors 5, and then the unit conductors 5 are soldered to the support member 6 through the intermediary of the metal thin film 7.

7. 发明专利

JPH11260162A SUPERCONDUCTING CURRENT LEAD 失效
公开(公告)号：JPH11260162A
公开(公告)日：1999-09-24
申请号：JP6514698
申请日：1998-03-16
申请人： JAPAN ATOMIC ENERGY RES INST , FUJI ELECTRIC CO LTD
发明人： ANDO TOSHINARI , TSUJI HIROSHI , ISONO TAKAAKI , HAMADA KAZUYA , YASUKAWA YUKIO , NOZAWA MASANOBU
IPC分类号： H01F6/06 , H01B12/02 , H01B12/06 , H01B12/12 , H01F6/00
摘要： PROBLEM TO BE SOLVED: To prevent lowering of the critical current and to make a superconducting current lead compact by mounting a plurality of unit conductors comprising the tape-shaped oxide superconducting wires on a cylindrical support member such that the tape faces of the superconducting wires are located in parallel with the peripheral direction in a cylinder coordinate system. SOLUTION: The grooves having the bottom faces chamfered in flat along the positions where the unit conductors 1 are mounted, are formed on a side face of a cylindrical support member 4 corresponding to the flat unit conductors 1, and the unit conductors 1 are mounted on the bottom faces of the grooves. The conductor units 1 mounted on the grooves are fixed to the support member by a binding tape wound on the periphery of the unit conductors 1. The magnetic material pieces 3 mounted among a plurality of unit conductors 1 are mounted on the cylindrical curved portions remained among a plurality of grooves formed on the side face of the support member 4 by an adhesive. Whereby the vertical self-magnetic field component of the tape face is guided into the magnetic material pieces 3 to inhibit the lowering of the critical current value.

8. 发明专利

JPH10188691A SUPERCONDUCTIVE CURRENT LEAD 失效
公开(公告)号：JPH10188691A
公开(公告)日：1998-07-21
申请号：JP35007896
申请日：1996-12-27
申请人： JAPAN ATOMIC ENERGY RES INST , FUJI ELECTRIC CO LTD , SUMITOMO ELECTRIC INDUSTRIES
发明人： ANDO TOSHINARI , TSUJI HIROSHI , ISONO TAKAAKI , YASUKAWA YUKIO , SAKAKI KIYOSHI , KONNO MASAYUKI , KATO TAKESHI , HAYASHI KAZUHIKO
IPC分类号： H01F6/00 , H01B12/06
摘要： PROBLEM TO BE SOLVED: To prevent the reduction of a critical current and make a superconductive current lead compact by arranging multiple units of a single tape-like oxide superconductive wire or a layered product on a cylindrical support member made of a low-heat conductivity material while the tape faces are made parallel with the peripheral direction of a cylindrical coordinate system. SOLUTION: Tape-like superconductive wire units 1 made of a sheath material of silver or a silver alloy at the silver cross sectional ratio of about 2-3 are fixed to an oxide superconductive while the tape faces are made parallel with the peripheral direction around a cylindrical support member 3. The main component of the self- magnetic field caused by the self-current is made parallel with the tape face, the vertical component is reduced, the reduction of a critical current value due to the self-magnetic field is decreased, and the self-magnetic field is not disturbed. The heat contraction coefficient of the material of the support member 3 when a current lead is cooled to the prescribed temperature from the room temperature is preferably set to -0.4% through -0.15% between the heat contraction coefficients of silver and superconductor. The essential strain of the superconductive wire is kept in the compressive direction, and the deterioration of the critical current value caused by thermal strain is prevented.

9. 发明专利

JPH06215931A SUPERCONDUCTOR COIL 失效
公开(公告)号：JPH06215931A
公开(公告)日：1994-08-05
申请号：JP435393
申请日：1993-01-13
申请人： JAPAN ATOMIC ENERGY RES INST
发明人： YOSHIDA KIYOSHI , TSUJI HIROSHI , TAKAHASHI YOSHIKAZU , NISHI MASATAKA , ISONO TAKAAKI
IPC分类号： H01F6/00 , H01F6/06 , H01F5/08
摘要： PURPOSE:To enhance electric current density and mechanical strength inside windings by connecting a large number of superconductors In parallel and connecting the connected superconductors to each of mating power sources. CONSTITUTION:A cylinder type is adopted for the shape of a coil while a winding system is designed on a layer winding basis. Four power sources are used for this winding system where four conductors 2 are wound up in the longitudinal direction at the turns of 16, thereby forming a total of 64 turns 16 layers are wound up in the radial direction so that a total number of turns may be 1024 turns. Four conductors 2 are laid out in each layer so that a total of 64 conductors may be used. In this superconductor call designed in this construction, a total 64 superconductors are connected in parallel where an individual power source is connected to each superconductor thus connected. This connection makes it possible to minimize differential potential between the conductors and reduce the number of insulators and enhance the electric current density and mechanical strength of at the winding parts of the superconductor coil.

10. 发明专利

JPH0399407A SUPERCONDUCTING COIL 失效
公开(公告)号：JPH0399407A
公开(公告)日：1991-04-24
申请号：JP23803489
申请日：1989-09-12
申请人： JAPAN ATOMIC ENERGY RES INST , ARISAWA SEISAKUSHO KK
发明人： YOSHIDA KIYOSHI , NAKAJIMA HIDEO , ISONO TAKAAKI , TSUJI HIROSHI , ANDO TOSHINARI , HOSHINO TAKASHI
IPC分类号： H01F6/06
摘要： PURPOSE:To prevent generation of wrincles on an insulating tape, and to improve both mechanical strength and electric characteristics by a method wherein a superconducting wire composite conductor, having a rectangular cross section, is formed with a winding, and a piece of resin coated or impregnated elastic woven cloth is used as an interturn insulator. CONSTITUTION:A superconducting coil 1 has a superconducting wire composite conductor 5, having rectangular cross section, as a winding, and an interturn insulator 6 is arranged between the windings. An insulating tape, formed with a piece of resin-coated or resin impregnated woven cloth, is used as the material of the interturn insulator 6. By using the insulating tape having a high degree of elasticity as the interturn insulator 6 as above-mentioned, the insulating tape can be wound around the superconducting wire composite conductor 5 uniformly even when the winding, consisting of the superconducting wire composite conductor 5, has a sharp-angled rectangular cross section, and the generation of wrinkles can be prevented. As a result, the insulating tape can be arranged between windings in the prescribed designed dimensions, and high electric characteristics can be obtained. Also, mechanical strength can remarkably be improved.

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