IMMERSION NOZZLE FOR CONTINUOUS CASTING

摘要

Provided is an immersion nozzle (10) for continuous casting, in which the drift of flow of a molten steel discharged from a discharge hole (14) is suppressed and the variation of molten metal surface is reduced, and which can be easily manufactured. The immersion nozzle (10) includes a molten steel inlet (13) formed at the upper end thereof, a flow passage (12) extending from the inlet (13) downward in the interior of the nozzle, and a pair of discharge holes (14) which communicate with the flow passage (12) and are so formed in the lower side surface part of a tube body (11) having a bottom part (15) as to face each other. In the immersion nozzle, convex strips (16) projecting inward and horizontally traversing an inner wall (18) are so disposed as to face each other on the inner wall (18) which is provided between the pair of discharge holes (14) and defines the flow passage (12).