| 摘要 |
PURPOSE:To stir the molten metal in an unsolidified ingot efficiently by disposing a pair of electrodes opposite to each other with said ingot in-between, disposing a pair of magnetic poles orthogonally with said electrodes and generating electromagnetic force in the ingot by electric current and magnetic fields. CONSTITUTION:A pair of electrodes 4, 4' are brought into contact with one opposite outside surface of an unsolidified ingot 3 assuming a square shape in section in a secondary cooling zone, via brushes 5, 5', and a pair of magnetic poles 6, 6' are installed on the other opposite outside surface of the ingot spacially slightly therefrom. DC current I is flowed from the electrodes 4, 4' to the ingot 3, and a DC magnetic field B is formed by the poles 6, 6'. Electromagnetic force F is acted to the molten steel 3' in the ingot 3 by the mutual effect thereof. If the electromagnetic force F is acted in the same direction as the casting direction, the molten steel 3' flows in the casting direction, and the stirring of the molten steel 3' in the ingot 3 is accomplished in the same manner as for the case of a conventional electromagnetic stirrer of linear type. |
