| 摘要 |
PURPOSE:To improve the quality and productivity of a slab by disposing an electromagnetic stirrer along both short sides of the slab in the lower part of a casting mold and forming upward electromagnetic flow at the solidification boundary of a molten steel. CONSTITUTION:A supporting part 12 for the casting mold is provided on the slab short sides in the lower part of the casting mold 1. The electromagnetic stirrer 13 along the short sides of the slab is disposed in the lower part of the support part 12. The molten steel at the solidification boundary in the short side part of the slab is fluidized upward by such mechanism. The force flow in the upward direction is therefore generated by which the flow intruding from an immersion nozzle into the slab is suppressed, braked and diffused. The flow depth into the slab is further decreased. The defect arising from the inclusion in the slab is prevented by the above-mentioned method. The quality and productivity of the slab are thus improved. |
