DEVICE AND METHOD FOR CONTINUOUS REMOVAL OF IMPURITIES FROM MOLTEN METAL

    公开(公告)号:EP3711878A1

    公开(公告)日:2020-09-23

    申请号:EP18878774.1

    申请日:2018-08-23

    申请人: Takahashi, Kenzo

    发明人: Takahashi, Kenzo

    IPC分类号: B22D1/00 B22D43/00

    摘要: To provide a device and a method for continuously removing impurities, which enable continuous manufacture of products while removing impurities from non-ferrous molten metal or other molten metal containing impurities with high accuracy.
    A molten metal flow path body having a molten metal flow path for flowing electrically conductive molten metal that has flown from outside toward a metal product manufacturing device is prepared,
    an inlet-side closed end plate and an outlet-side closed end plate are provided in the molten metal flow path body so as to partition a front and a rear of the molten metal flow path and form an impurity removal space,
    an electrode device composed of an inlet-side electrode and an outlet-side electrode that face each other in a longitudinal direction in which molten metal flows and can be put into electrical contact with molten metal in the impurity removal space are provided in the impurity removal space,
    a magnetic field device composed of a pair of permanent magnets that face each other in a width direction intersecting the longitudinal direction, sandwich the impurity removal space of the molten metal flow path forming body in the width direction, have opposite poles facing each other, and can form a magnetic field in molten metal in the impurity removal space is provided outside the molten metal flow path forming body,
    the outlet-side electrode is provided in a floating state in the impurity removal space so that a first gap opened vertically is formed between the outlet-side electrode and a bottom surface of the molten metal flow path forming body and a second gap opened in the longitudinal direction is formed between the outlet-side electrode and the outlet-side closed end plate, and
    an urging device composed of the electrode device and the magnetic field device applies a Lorentz force downward to molten metal in the impurity removal space so as to increase a density of the molten metal and cause impurities in the molten metal to rise up to a surface of the molten metal, and sends molten metal on an inner side than the outlet-side electrode through the first gap to the second gap.

    CRUCIBLE SKIMMING, STIRRING AND SAMPLE TAKING STATION

    公开(公告)号:EP3165618B1

    公开(公告)日:2018-08-01

    申请号:EP15382539.3

    申请日:2015-11-03

    IPC分类号: C22B21/06 B22D43/00

    CPC分类号: B22D43/007

    摘要: Crucible skimming, stirring and sample taking station, for removing the dross from molten aluminum in a crucible (3), which has a robot (1) with an articulated arm (2), position detecting means (4) connected to the robot (1) for detection of the position of the crucible (3) on the horizontal plane X, Y, a skimming tool (6) for removing the bath from the molten aluminum in the crucible (3), a collecting box (8) in which the robot (1) throws away the bath removed from the crucible (3), a reactive dosifying system (12) which adds reactive components into the molten aluminum of the crucible (3), a stirring tool (7), a sample taking tool (10) and a control desk (11) for the control of the station. The articulated arm (2) of the robot (1) is configured to take and move in the three dimensions X, Y, Z the tools (6,7,10).

    REAKTIONSTIEGEL FÜR ALUMINOTHERMISCHE SCHWEISSUNGEN MIT EINEM FEUERFESTEN SPERRKÖRPER
    40.
    发明公开
    REAKTIONSTIEGEL FÜR ALUMINOTHERMISCHE SCHWEISSUNGEN MIT EINEM FEUERFESTEN SPERRKÖRPER 有权
    反应坩埚有耐火锁体铝热焊接

    公开(公告)号:EP2704871A1

    公开(公告)日:2014-03-12

    申请号:EP12717597.4

    申请日:2012-04-07

    摘要: A reaction crucible (1) intended for carrying out aluminothermic welding operations is provided with a bottom (20) having an outflow opening (4) and contains a fine-grain aluminothermic mixture. In order to retain the slag (7) formed as a reaction product of the aluminothermic reaction in the reaction crucible (1), there is provided a shutoff element (10), the density of which is greater than that of the slag (7) and less than that of the molten steel (6), wherein the shutoff element (10) is incorporated into said mixture. The shutoff element (10) consists of a shell (11) which surrounds a filling (12) that consists of a metallic solid body, such that the latter does not prevent the steel (6) from flowing out and only comes into operation once the steel (6) has passed out of the reaction crucible and the outflow opening (4) has been closed by the shutoff element (10).