| 摘要 |
PROBLEM TO BE SOLVED: To provide a tundish which can efficiently floating-up and separating even fine inclusions, and also, whose specifications can be easily changed even in an existing tundish. SOLUTION: Regarding the tundish 1, a molten steel pouring point 4 is provided at the central part in the length direction of the tundish, molten steel outflow holes 5 are installed on the respective sides with the molten steel pouring point sandwiched, and also, weirs 2 each having a through hole 3 are arranged between the molten steel pouring point and each molten steel outflow hole so as to be confronted with the molten steel pouring point sandwiched. Each through hole 3 is installed in such a manner that a straight line P passing through the axial core position of the through hole is tilted to a straight line Q connecting the molten steel pouring point and the molten steel outflow hole at a horizontal direction angle (θ) of >0 to <90°, and further, the through holes in the confronted two gates are tilted, against a straight line connecting the molten steel pouring point and the molten steel outflow hole, to the same direction in a clockwise rotation or counterclockwise rotation in both the cases. COPYRIGHT: (C)2008,JPO&INPIT
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