发明名称 |
REFRACTORY MATERIAL, CONTINUOUS CASTING NOZZLE USING THE REFRACTORY MATERIAL, PRODUCTION METHODS FOR THE CONTINUOUS CASTING NOZZLE, AND CONTINUOUS CASTING METHODS USING THE CONTINUOUS CASTING NOZZLE |
摘要 |
[OBJECT] In an operation of continuous casting of steel grade such as aluminum-killed steel where a nozzle clogging phenomenon is particularly likely to occur, it is intended to prevent adhesion of inclusions (typically, Al2O3) on a nozzle used in the casting operation, and clogging of the nozzle due to the inclusions [SOLUTION] A refractory material 10 is arranged to define a part or an entirety of a molten steel-contacting surface of a continuous casting nozzle, wherein the refractory material 10 contains: a CaO component in an amount of 0.5 mass % or more; one or both of B2O3 and R2O (R is one selected from the group consisting of Na, K and Li) in an amount of 0.5 mass % or more; Al2O3 in an amount of 50 mass % or more; and free carbon in an amount of 8.0 to 34.5 mass %, and wherein a total amount of CaO, B2O3 and R2O is in the range of 1.0 to 15.0 mass %, and a mass ratio of CaO/(B2O3+R2O) is in the range of 0.1 to 3.0. |
申请公布号 |
US2011277951(A1) |
申请公布日期 |
2011.11.17 |
申请号 |
US20100779277 |
申请日期 |
2010.05.13 |
申请人 |
MORIKAWA KATSUMI;SASAKI AKINARI;OTSUKA HIROSHI;TSUKAGUCHI YUICHI;KROSAKIHARIMA CORPORATION |
发明人 |
MORIKAWA KATSUMI;SASAKI AKINARI;OTSUKA HIROSHI;TSUKAGUCHI YUICHI |
分类号 |
B22D11/103;B29C43/18;C04B35/057 |
主分类号 |
B22D11/103 |
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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