| 摘要 |
PROBLEM TO BE SOLVED: To efficiently remove inclusion at a low cost, in a tundish for continuous casting. SOLUTION: This tundish 1 supplies molten steel 3 which is poured into a molten steel pouring part 5 from a ladle 2, into a mold 4 from a tundish outlet 6 as transit. In such a case, a baffleplate 7 whose projecting lengthsω,ω', from the side walls are in the range of 5-50% of the molten metal width W stored in the tundish and are >=100 mm, are arranged at both side walls of the tundish near the center position between the molten steel pouring part and the tundish outlet. Further, the quantity of the molten steel staying in the tundish or the quantity of the molten steel passing-through is controlled so that the valve obtd. by dividing the quantity V of the molten steel staying in the tundish by the quantity Q of the molten steel passing-through per one minute is in the range of 10-20 while the quantity V of the molten steel staying in the tundish is kept in the range of 30 to 100 tons.
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