| 摘要 |
PURPOSE: A tundish nozzle is provided which prevents inclusions from sticking to the nozzle wall and prevents inclusions from sticking to the slots by forming a cylindrical nozzle at an upper side part of which at least one or more of eccentric slots are formed so that both tundish nozzle and submerged entry nozzle give rotary power to molten steel. CONSTITUTION: In a refractory pipe of continuous casting machine comprising a tundish nozzle(31) installed at a lower part of tundish(2) to heat molten steel supplied into mold, a sliding gate(32) positioned at a lower part of the tundish nozzle to control quantity of molten steel supplied into the mold, and a submerged entry nozzle(33) connected to a lower part of the sliding gate to guide molten steel into the mold, the tundish nozzle is characterized in that a through hole(31a) having the same diameter as inner diameter of the sliding gate is formed in the tundish nozzle, an upper part(37) of the tundish nozzle is projected as much as a certain height from the bottom surface of the tundish, a cover(35) is installed at an upper end(35) of the tundish nozzle, at least one or more of slots(34) are installed on the side surface of the upper part of the tundish nozzle, and the slots are eccentrically formed with being deviated from center line of plane of the through hole.
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