CONTINUOUS CASTING APPARATUS

摘要

PROBLEM TO BE SOLVED: To reduce development of defects caused by pin holes and mold powder on the surface of a cast slab by preventing the development of stagnation and vortexes in molten steel flow in a mold. SOLUTION: In a continuous casting apparatus provided with an electromagnetic stirring device 5, a horizontal cross-sectional shape in the lower range including at least the meniscus M of an immersion nozzle 6 dipped into the mold 3 is made flat so that the cross-sectional shape is elongated in the direction parallel to the long sides 3a of the mold 3.