| 摘要 |
Provided are: an alumina-zirconia-silica fused-cast refractory material suitable as a refractory material for glass production apparatuses, and which suppresses the exudation of glass components from the refractory material; and a glass furnace using same. An alumina-zirconia-silica fused-cast refractory material containing, as essential components, Al2O3, ZrO2, SiO2 and Na2O, in mass percentage in oxide equivalent, 20.0% ≤ Al2O3 ≤ 70.0%, 10.0% ≤ ZrO2 < 41.5%, 3.8% ≤ SiO2 ≤ 18.0%, 1.3% ≤ Na2O ≤ 15.0%, where Al2O3/SiO2 < 6.5, 0.20 ≤ Na2O/SiO2, and the total amount of the abovementioned essential components is at least 85%. |
