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317 条记录 (耗时 0.015 秒)

    ELECTROCONDUCTIVE BRICK
    31.
    发明专利
    ELECTROCONDUCTIVE BRICK 失效

    公开(公告)号：JPS62143862A

    公开(公告)日：1987-06-27

    申请号：JP28410786

    申请日：1986-11-28

    申请人： ASEA AB

    发明人： BO RATSUPINGAA ,  SUBEN EINAA SUTENKUBISUTO

    IPC分类号： F27B3/10 ,  C04B35/00 ,  H01B1/18 ,  H05B7/06

    摘要： Electrically conductive brick containing flakes of graphite or other electrically conductive material in flake form (3), the brick being pressed into final shape. According to the invention a number of holes (5) are arranged in the brick, which holes do not pass entirely through the bricks, and which holes extend with their longitudinal direction substantially perpendicular to the predominant direction of orientation of the flakes (3).

    ELECTRIC CONNECTOR PENETRATED THROUGH FURNACE WALL OF DIRECTCURRENT METALLURGICAL FURNACE
    33.
    发明专利
    ELECTRIC CONNECTOR PENETRATED THROUGH FURNACE WALL OF DIRECTCURRENT METALLURGICAL FURNACE 失效

    公开(公告)号：JPS61190283A

    公开(公告)日：1986-08-23

    申请号：JP2875086

    申请日：1986-02-12

    申请人： SIDERURGIE FSE INST RECH

    发明人： MICHELET JACQUES ,  MAURER GHISLAIN

    IPC分类号： F27D11/10 ,  C21C5/52 ,  F27B3/20 ,  H05B3/03 ,  H05B7/06 ,  H05B7/11

    摘要： The device consists principally of: - an internal part crossing the wall of the furnace and comprising a metal core 7 extended by a cooled end-piece 10 which is integral with it, the free end of the core being in contact with the melting metal mass contained in the furnace, - a sleeve 11, in a heat-conducting material, cooled by circulating a cooling fluid, and surrounding the core 7, - and means 29 of connecting the metal core 7 to an electrical supply. The device furthermore has a separation space 12 made between the sleeve 11 and the metal core 7, and an elastic fastening system 33, 34, 35, tending to return the said core 7 to its given initial position upon setting-up. The device according to the invention applies advantageously to metallurgical direct current furnaces in the guise of hearth electrode.

    PLASMA FUSING FURNACE
    40.
    发明专利
    PLASMA FUSING FURNACE 失效

    公开(公告)号：JPS57142476A

    公开(公告)日：1982-09-03

    申请号：JP219482

    申请日：1982-01-08

    申请人： VOEST AG

    发明人： BUARUTAA RUGUSHIYAIDAA ,  ERUNSUTO RIIGURAA ,  ERUNSUTO TSUAJITSUETSUKU

    IPC分类号： H05B7/18 ,  C22B9/22 ,  F27B3/08 ,  F27D11/08 ,  F27D99/00 ,  H05B7/06 ,  H05H1/32 ,  H05H1/34

    摘要： A plasma melting furnace includes a water-cooled bottom electrode of copper and a temperature probe connected with the bottom electrode. A wearing part of steel is provided in the bottom of the furnace, covering the bottom electrode. At least one counter electrode is arranged at a distance above the wearing part for the formation of the plasma jet. In order to prevent the risk of a melting through of the bottom electrode as far as to its water-cooled section on account of a secondary arc, a metal layer is provided between the bottom electrode and the wearing part. The metal layer is formed by a metal having a low thermal conductivty and a low melting point, as compared to copper, as well as a high melting enthalpy. Preferably, a metal layer of lead or its alloys with tin and/or zinc is provided.