| 摘要 |
PROBLEM TO BE SOLVED: To provide an alumina molten cast refractory capable of being manufactured with a size capable of being used for a refractory lining of a glass manufacturing furnace and having less peeling of a surface layer even when used in the glass manufacturing furnace for long time.SOLUTION: There is provided an alumina molten cast refractory containing, by mass% in terms of oxide, AlOof 95.9 to 98.2%, NaO of 1.4 to 2.4%, SiOof 0.3 to 1.5%, CaO of 0 to 0.5%, and FeOof 0 to 0.2% as a chemical component and having porosity of 1.5% or less. |
