Shinagawa Refractories Co., Ltd.

Toshio Horiuchi

Osamu Nomura

Masamichi Takai

Shinsuke Inoue

Takashi Yamamura

Hidetaka Ogino

Masaru Kurisaki

An object of the invention is to provide a casting nozzle in which attachment and deposition of alumina or the like can be prevented while a drift of molten steel can be prevented. The casting nozzle according to the invention is characterized in that the casting nozzle has a molten steel flow hole portion in which 'a plurality of independent protrusion portions and/or concave portions' are disposed so that each of the protrusion portions and/or concave portions has a size satisfying the expression (1): H&#x2267;2 mm and the expression (2): L&#x3e;2&#xd7;H mm [in which 'H' shows the maximum height of the protrusion portion or the maximum depth of the concave portion, and &#x201c;L&#x201d; shows the maximum length of a base portion of the protrusion portion or concave portion].

Casting nozzle

A nozzle for continuous casting which is prevented from clogging due to alumina deposition is disclosed, wherein the inner wall member is made of a refractory material having a carbon content of 1% to 10% by weight; a material other than carbon in the refractory material has a grain size of not more than 420 .mu.m; the inner wall member is integrally molded with the outer nozzle body to form an integral structure; and said inner wall member has a thickness of 2 mm to 12 mm.

Nozzle for continuous casting

Growing community of inventors

Tokyo, Japan

Toshio Horiuchi