| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lance pipe having good corrosion resistance and spalling resistance and having a long durability. <P>SOLUTION: The lance pipe is made from a refractory material having a composition of 92 to 30 mass% alumina, 5 to 50 mass% chromia, and 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 |
