COMPOUND SUPERCONDUCTOR AND PRODUCTION THEREOF

    公开(公告)号:JPS63230526A

    公开(公告)日:1988-09-27

    申请号:JP6328087

    申请日:1987-03-18

    Abstract: PURPOSE:To obtain a compound superconductor capable of being cooled with inexpensive and readily handleable liquid N2, consisting of Yb and/or Lu, Ba, Cu and O. CONSTITUTION:The compound superconductor of this invention consists of the above-mentioned elements and has the composition ratio of Yb and/or Lu and Ba of 30:70-70:30, preferably 40:60-55/45. The superconductor is produced by the following method. Namely, powder of Yb2O3 and/or Lu2O3 is blended with powder of BaCO3 and powder of CuO in a given ratio. Then the mixture is calcined in air at 800-900 deg.C, ground, cold-pressed and further sintered in air at 800-940 deg.C. Consequently, the aimed compound superconductor of oxide type having a critical temperature Tc higher than liquid N2 temperature (77k) is obtained.

    LIQUID LEVEL GAGE
    33.
    发明专利

    公开(公告)号:JPS6285823A

    公开(公告)日:1987-04-20

    申请号:JP22488485

    申请日:1985-10-11

    Abstract: PURPOSE:To facilitate confirming a sample level and moreover, to discriminate a tendency of increase and decrease of the sample level by providing a means to follow a variation of the liquid storage quantity and indication parts of the preset liquid quantity. CONSTITUTION:The present storage quantity is known by the indication part of the present waste liquid quantity via the follow means 17 according to movement of a float 3 in accordance with fluctuations of a liquid level 16 of a waste liquid receiving tank 2. Then, the indication part 12 of the maximum waste liquid quantity and the indication part 13 of the minimum waste liquid quantity are brought into contact with the fluctuations of the indication part 11 every time an operator patrols. Afterward, for instance, when the liquid level 16 of the tank 2 rises, the indication part 11 rises and is brought into contact with the indication part 12 and a switch 14 is pushed and the detection of a projection 15 is detached and the indication part 12 also rises in accordance with the rise of the indication part 11. On the other hand, since the indication part 13 is not brought into contact with the indication part 11, the switch 14 is not pushed and the projection 15 is detained and the indication part 13 is maintained at the position. In this case, since the present waste liquid quantity is larger than the minimum waste liquid quantity and moreover, the present waste liquid quantity is the same value as the maximum waste liquid quantity, it is grasped that the liquid level 16 of the tank 2 has a tendency to rise. In case the liquid level drops, it is grasped in the same way.

    Thermal type permanent current switch
    34.
    发明专利
    Thermal type permanent current switch 失效
    热式永久电流开关

    公开(公告)号:JPS6180879A

    公开(公告)日:1986-04-24

    申请号:JP20273284

    申请日:1984-09-27

    Applicant: Toshiba Corp

    CPC classification number: H01L39/12

    Abstract: PURPOSE:To increase resistance per unit length of a superconductor in its normal conductive state by a method wherein at least one element different from those constituting the basic superconductor is added to the basic superconductor composed of at least two kinds of elements. CONSTITUTION:A superconductor 11 is composed, for example, of a basic material 12 that is Cu, Ni, or the like and a multitude of microstructures of a superconductor 13 buried therein. The superconductor 13 may be an alloy NbTiHf constituted of an basic superconductor NbTi and a third element Hf added thereto. The sample superconductor 11 here has a resistance per unit length rp that is approximately three times larger than that in a conventional technique. Consequently, the resistance-caused loss to be experienced during magnetization and demagnetization of a superconducting magnet may be reduced approximately to one third.

    Abstract translation: 目的:通过一种方法来增加超导体在其正常导电状态下的每单位长度的电阻,其中至少一种不同于构成基本超导体的元件被添加到由至少两种元件组成的基本超导体中。 构成:超导体11例如由Cu,Ni等的基体材料12和埋藏在其中的超导体13的多个微观结构构成。 超导体13可以是由添加有碱性超导体NbTi和第三元素Hf构成的NbTiHf合金。 这里的样品超导体11的每单位长度rp的电阻比常规技术大约三倍。 因此,在超导磁体的磁化和退磁过程中所产生的电阻引起的损耗可以减少约三分之一。

    Manual valve open and close state management system
    36.
    发明专利
    Manual valve open and close state management system 审中-公开
    手动阀打开和关闭状态管理系统

    公开(公告)号:JP2007032587A

    公开(公告)日:2007-02-08

    申请号:JP2005212182

    申请日:2005-07-22

    Abstract: PROBLEM TO BE SOLVED: To provide a manual valve open and close state management system for allowing a worker to perform a series of operation/recording/confirmation work related to manual valve operation automatically.
    SOLUTION: This manual valve open and close state management system is provided with an equipment state detection device 12 for detecting an open and close state from travel distance of a valve stem driven when a handle of a manual valve 11 opened and closed by handle operation is operated, an equipment information transmission device 13 for converting the open and close state of the manual valve 11 detected by the equipment state detection device 12 into an electric signal and transmitting the electric signal by radio, an equipment information collection device 15 provided at an access point 14 for collecting and recording manual valve information transmitted by the equipment information transmission device 13, a centralized control device 18 for collecting the manual valve information recorded at the access point 14 through a communication network 17 and recording history of changes of the open and close state of the manual valve 11, and an information display terminal unit 20 for holding the information collected by the centralized control device 18 in common through the communication network 17 and reading the information from a remote place in a concentrated manner.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题:提供手动阀打开和关闭状态管理系统,允许工作人员自动执行与手动阀操作相关的一系列操作/记录/确认工作。 解决方案:该手动阀打开和关闭状态管理系统设置有设备状态检测装置12,用于检测当通过手动阀11的手柄打开和关闭时驱动的阀杆的行进距离的开启和关闭状态 操作手柄操作,用于将由设备状态检测装置12检测到的手动阀11的打开和关闭状态转换为电信号并通过无线电发送电信号的设备信息传输装置13提供设备信息收集装置15 在用于收集和记录由设备信息发送装置13发送的手动阀信息的接入点14,集中控制装置18,用于通过通信网络17收集记录在接入点14的手动阀信息,并记录 手动阀11的打开和关闭状态,以及用于的手动阀11的信息显示终端单元20 通过通信网络17保持由集中控制装置18共同收集的信息,并以集中的方式从偏远的地方读取信息。 版权所有(C)2007,JPO&INPIT

    SUPERCONDUCTIVE WIRE AND SUPERCONDUCTIVE COIL

    公开(公告)号:JP2001256840A

    公开(公告)日:2001-09-21

    申请号:JP2000068888

    申请日:2000-03-13

    Applicant: TOSHIBA CORP

    Abstract: PROBLEM TO BE SOLVED: To provide a superconductive wire and a superconductive coil capable of holding a high-temperature superconductor by using an inexpensive material. SOLUTION: A transition metal having 20% or less of Cr content is used to from a sheath layer 21 of the high-temperature superconductor 22.

    SUPERCONDUCTING WIRE OF Nb3Sn COMPOUND AND MANUFACTURE THEREOF

    公开(公告)号:JP2001057118A

    公开(公告)日:2001-02-27

    申请号:JP23155499

    申请日:1999-08-18

    Abstract: PROBLEM TO BE SOLVED: To cause no lowering of critical current density and no lowering of a residual resistance ratio by providing a niobium complex containing a niobium filament, stabilized copper of pure copper, a reinforcement and two layered diffusion preventing materials. SOLUTION: First and second diffusion preventing materials 3, 6 exist on the inner peripheral surface and the outer peripheral surface of a pipe of alumina dispersion-strengthened copper forming a reinforcement 5 respectively. The first diffusion preventing material 3 prevents lowering of critical current density due to reduction of Sn concentration in bronze by preventing Sn from being diffused from the bronze to the alumina dispersion-strengthened copper by heat treatment to produce Nb3Sn, the second diffusion preventive material 6 prevents unreacted Al in the alumina dispersion-strengthened copper from being diffused to stabilized copper, and accordingly these two layered diffusion preventing materials 3, 6 have role to maintain purity of the stabilized copper 4 respectively. The second diffusion preventing material 6 is required between the reinforcement 5 and the stabilized copper 4. The thickness of the stabilized copper 4 can be suppressed to a minimum by the diffusion preventing layers.

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