válvula de imersão para lingotamento contínuo.

摘要

Provided is an immersion nozzle for continuous casting, in which the neck part of a cylindrical refractory object can be prevented from being damaged due to a pressing force or a stress by forming a metal case provided for the cylindrical refractory in a double structure configured from an outer part and an inner part. The immersion nozzle for continuous casting comprises an inner metal case (12) provided onto a part or the entire of the outer surface of the cylindrical refractory object (1), a tapered metal part (12a) so formed on the inner metal case (12) as to correspond to the tapered part (11a) of the cylindrical refractory object (1), and an outer metal case (13) provided outside of the inner metal case (12). At least parts of the metal cases (12, 13) are joined to each other.