| 摘要 |
FIELD: metallurgy.SUBSTANCE: invention relates to a fused cast refractory material based on aluminum oxide, zirconium dioxide and silica (AZS) and can be used in melting tank in contact with molten glass, and top of tank and on vault. Fused cast refractory material comprises 60-70 wt% AlO13-19 wt% ZrO, 15.5-18 wt% SiOand 2.0-2.6 wt% NaO. Composition of glass phase includes SiO, as well as AlOand NaO, wherein molar ratio of AlOand NaO is in range 0.8 to 1.6.EFFECT: technical result of invention is improvement of stability of refractory material to infiltration.7 cl, 2 dwg, 2 tbl |
