PERMANENT MAGNET-TYPE MOLTEN METAL STIRRING DEVICE AND MELTING FURNACE AND CONTINUOUS CASTING DEVICE COMPRISING SAME

摘要

A permanent magnet-type molten metal stirring device includes: a support body that is capable of suppressing transfer of heat from molten metal; a magnetic field unit that is provided above the support body and includes a permanent magnet allowing magnetic lines of force to vertically extend in the molten metal; and a drive unit that is provided below the support body and drives the molten metal with an electromagnetic force generated by the magnetic lines of force generated from the permanent magnet and current allowed to flow through the molten metal by the drive unit, wherein the drive unit includes: -a cylindrical drive unit main body that is mounted on a lower portion of the support body and includes a passage formed therein and laterally extending in a longitudinal direction, and -a pair of electrodes that are provided at positions where the pair of electrodes being opposed each other along a width direction via the passage, the pair of electrodes being exposed to the passage, and the pair of electrodes allowing current in the molten metal, the current intersecting the magnetic lines of force.