MOLTEN REFRACTORY MATERIAL ON BASE OF ALUMINUM β-OXIDE Russian patent published in 2004 - IPC

FIELD: production of low-melting refractory materials on base of aluminum β-oxide for glass industry; refractory materials for glass-making furnaces. SUBSTANCE: proposed refractory material contains the following components, molar %: 11.25-15.45 of alkaline metal oxide selected from group β, Na₂O and Li₂O; content of K₂O is no less than 9.3%; 0.64-2.97 of Na₂O; 81.38-88.75 of SiO₂ and more than 2% of admixtures. Proposed refractory material characterized by content of aluminum Al₂O₃-oxide of no less than 98%. EFFECT: enhanced crack and heat resistance at low cost. 5 cl, 8 tbl