ALUMINIUM-ZIRCONIUM-SILICON PRODUCT WITH LOW EXUDATION

摘要

FIELD: chemistry. ^ SUBSTANCE: invention relates to a molten fire-resistant aluminium-zirconium-silicon product for use in superstructures and glass-melting furnace roofs. The molten fire-resistant aluminium-zirconium-silicon product has the following chemical composition (in wt %): ZrO2: from 15.5 to 22%; SiO2: from 10.5 to 15%; Na2O+K2O+Li2O: from 1.0 to 2.5%; impurities: <1% provided that content of ZrO2 is less than or equal to 19.8% and/or content of SiO2 is greater or equal to 12.3%. ^ EFFECT: obtaining aluminium-zirconium-silicon products with low degree of exudation of the glass phase at temperature of approximately 1500C. ^ 25 cl, 1 tbl