| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a refractory for continuous casting with which even in the case of being much suspended amount of alumina during casting for long time or in molten steel when the aluminum-killed steel is cast, a sufficient alumina-deposition preventive effect can be obtained. <P>SOLUTION: In the refractory for continuous casting, in which CaO-MgO base refractory containing CaO as a mineral phase is deposited in at least a part of the surface contacting with molten steel and integrally formed with a main body part, in the main body part, MgO-C base material having 0 to 15 mass% the total content of Al<SB>2</SB>O<SB>3</SB>and SiO<SB>2</SB>is applied. In this way, the alumina-deposition preventive function can be held for long time by restraining the reaction of CaO component and main body part in the inner layer part or the outer layer part material with Al<SB>2</SB>O<SB>3</SB>and SiO<SB>2</SB>used for strength-up and improving spalling-resistance. <P>COPYRIGHT: (C)2004,JPO |
