| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent the neck part of a cylindrical refractory object from being damaged due to pressing force or a stress by forming a metal case provided to the cylindrical refractory object in a double structure configured of an outer part and an inner part. <P>SOLUTION: The immersion nozzle for continuous casting comprises an inner metal case (12) provided onto a part or the entirety 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. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
