| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of continuous casting for steel, which method can prevent the contamination of mold powder and can carry out a cleaning and removing operation of deoxidation products from solidifying interfaces by using a movable magnetic field and a static magnetic field at the same time. SOLUTION: When the continuous casting is carried out by pouring molten steel into a rectangular casting mold having the long sides and the short sides via a submerged nozzle 2, movable magnetic field generating devices 3 for moving magnetic fields in the direction of the width of a cast strip are arranged so as to oppose to the back surfaces of the long sides of the casting mold such that the projected plane of the movable magnetic field generating devices 3 to the movable magnetic field generating devices opposed to each other across the long sides of the casting mold overlap with at least a part of the locus of the molten steel flow discharged from the discharge port of the submerged nozzle to the short sides of the casting mold. The movable magnetic fields moving from the short sides toward the central side of the casting mold in the direction of the width or moving in the reversed direction are applied using the movable magnetic field generating devices, and at the same time, the static magnetic field generating devices 4 are arranged over the whole width of the cast strip at the position separated downward by a specified distance from the movable magnetic field generating devices, and the casting operation is carried out while applying the static magnetic fields over the whole width of the casting mold using the static magnetic field generating devices. COPYRIGHT: (C)2008,JPO&INPIT
|
