| 摘要 |
PROBLEM TO BE SOLVED: To provide a continuous casting method of high-titanium-containing steel which makes a cast steel slab free from any surface defect and enables the high-titanium-containing steel slab to be rolled without care. SOLUTION: In the continuous casting of high-titanium-containing steel containing 0.1-1.0 mass% Ti, the angleθof the delivery hole of an immersion nozzle 1 is within a range between 2 and 8 degrees upward, the immersion depth H of the immersion nozzle is within a range between 80 and 130 mm, and the consumption of molding powder 11 is within a range between 0.3-0.6 kg/m×min. These casting conditions prevent a longitudinal crack and a slag residue, and can produce the cast steel slab excellent in surface properties which can be rolled without care. COPYRIGHT: (C)2005,JPO&NCIPI
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