| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a refractory material for a desiliconization container, having good corrosion resistance and spalling resistance and having a long durability. <P>SOLUTION: A freeboard A and a slag line B in a hot metal ladle for desiliconization are made from a refractory material 15 having a composition of 92 to 30 mass% alumina, 5 to 50 mass% chromia, not more than 10 mass% zirconia, provided that the total amount of alumina, chromia, and zirconia is not less than 90 mass%. <P>COPYRIGHT: (C)2008,JPO&INPIT |
