| 摘要 |
PROBLEM TO BE SOLVED: To provide a continuous casting method for steel where, when a slab is continuously cast while stirring a molten steel in a die rotatably in a horizontal direction by a shifting magnetic field, the thickness of a solidified shell in the vicinity of the corner of the slab is controlled to the one equal to that in the case a magnetic field is not applied. SOLUTION: When the molten steel is cast into a slab while a shifting magnetic field is applied by a shifting magnetic field generation magnetic pole 6 arranged oppositely to the back surface of the die long side 2 of a die for continuous casting, to cause a swirl flow in a horizontal direction to the molten steel in the die, a static magnetic field passing through the die long side is applied by a first static magnetic field generation magnetic pole 7 arranged oppositely to the position same in the casting direction as the installing position of the shifting magnetic field generation magnetic pole of the back surface of the die long side so as to apply braking force to the molten steel in the die, and a second static magnetic field generation magnetic field 8 is arranged at the back surface of the die short side 3 at a position same in the casting direction as the installing position of the shifting magnetic field generation magnetic pole, and a static magnetic field is applied so as to pass through the molten steel in the die between the second static magnetic field generation magnetic pole and the first static magnetic field generation pole. COPYRIGHT: (C)2011,JPO&INPIT |
