| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a continuous casting method for steel wherein the parting of a liquid seal is not caused by pressing force applied to a nozzle joint, and air suction from the nozzle joint is surely prevented over a long period. Ž<P>SOLUTION: The continuous casting method for steel is performed using continuous casting equipment where a nozzle joint is sealed by a liquid seal material 10 held between double refractory packing materials 11, 12. The respective packing materials 11, 12 are made thin at the side in contact with the liquid seal material 10 in a state where pressing force is not applied, and are made thick at the side opposite thereto, and, the thickness d<SB>0</SB>in the solidified state of the liquid seal material is controlled to 1 to 8 mm, and its width w<SB>0</SB>is controlled to ≥3 mm, thus, when pressing force is applied to the nozzle joint and the respective refractory packing materials 11, 12 are flatly crushed, the partition of the liquid seal material 10 is prevented, and, while securing the seal of the nozzle joint, the molten metal is poured to a mold. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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