| 摘要 |
PURPOSE:To execute good continuous casting operation without any leakage by arranging slantable coils wound at gap near boundary of a tundish nozzle and mold with large inner diameter, and adjusting slant of the coils in accordance with detecting of contact position of molten metal, shrunk by electromagnetic force, with the mold. CONSTITUTION:The slantable (theta) coils 98, 99 wound are arranged at the gap near the boundary 17 of the nozzle qr of the tundish 1 and the mold 3 with large inner diameter. The molten metal 95, of which diameter is reduced by the electromagnetic force generated by AC current of the coils 98, 99, is brought into contact with the mold 3 through flowing lubricant 46 at the contacting start position 112, to execute horizontal continuous casting toward casting direction 45 without any sticking of solidified shell to the mold 3. The contacting position 112 with the molten metal is detected by the position detecting means 109 through thermocouples 108, and the coils 98, 99 are slanted at suitable angle theta, to compensate a gap of the contacting position 112 by gravity. Further, thickness of the shell is also adjusted by slanting the coil. Therefore, the leakage of the molten metal 95 is prevented and the solidified shell is developed uniformly without any sticking to the mold 3 and good horizontal continuous casting operation is executed. |
