| 摘要 |
PROBLEM TO BE SOLVED: To cast a clean ingot, in which not only the inclusion of mold powder but also deoxidation products captured in a solidified shell and Ar gas bubbles are very low, when continuous casting is carried out while applying a braking force to a discharge flow of molten steel by a moving magnetic field. SOLUTION: The method for continuously casting steel casts the steel such that a moving magnetic field moving from both short side 8 sides of a casting mold 6 toward an immersed nozzle 11 side is applied to the molten steel 1 in the casting mold, and the braking force is applied to the discharging flow 4 of the molten steel being discharged from the immersed nozzle. The lower end of the discharge port of the immersed nozzle is positioned above the lower end of the iron core of a moving magnetic field application apparatus 13. In addition, the discharge angle of the immersed nozzle is appropriately adjusted such that the trajectory of the flow discharged from the immersed nozzle does not deviate from the range of the arranged position of the iron core of the moving magnetic field application apparatus 13. COPYRIGHT: (C)2005,JPO&NCIPI
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