发明名称 |
REFRACTORY FOR NOZZLE USED IN CONTINUOUS CASTING AND NOZZLE FOR CONTINUOUS CASTING |
摘要 |
<p>In a insert-type continuous casting nozzle comprising a highly functional layer formed to have a high corrosion resistance, a high anti-attachment capability, etc., and provided to defme an inner bore thereof, the present invention is directed to providing a refractory material (mortar) for an intermediate layer of the continuous casting nozzle, which has a property capable of fixing an inner bore-side layer to an outer periphery-side layer (a nozzle body) of the continuous casting nozzle, while preventing the occurrence of expansion splitting in the outer periphery-side layer due to a difference in thermal expansion between the inner bore-side and outer periphery-side layers, and a continuous casting nozzle using the refractory material for the intermediate layer. The refractory material for the intermediate layer contains a hollow refractory aggregate in an amount of 10 to 75 volume%, wherein a ratio of an average radius R of each particle of the aggregate to an average wall thickness t of the particle satisfies the following relation: R/t ‰¥ 10. This refractory material is disposed between an inner bore-side layer (2) and an outer periphery-side layer (3, 4) of a continuous casting nozzle.</p> |
申请公布号 |
EP2322300(A1) |
申请公布日期 |
2011.05.18 |
申请号 |
EP20090802929 |
申请日期 |
2009.07.27 |
申请人 |
KROSAKIHARIMA CORPORATION;NIPPON STEEL CORPORATION |
发明人 |
MORIKAWA, KATSUMI;SASAKI, AKINARI;HIRAIWA, YOSHITAKA;NEBA, KEIICHIRO;SADANO, TAKASHI;FUKUNAGA, SHINICHI;TANAKA, KAZUHISA |
分类号 |
B22D11/10;B22D41/50 |
主分类号 |
B22D11/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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