Provided are: an alumina-zirconia-silica (AZS) fused cast refractory in which generation of cracks is further prevented during production of the AZS fused cast refractory and in which grinding and polishing parts are reduced; and a glass melting furnace using the same. This AZS fused cast refractory comprises, in mass% on an oxide basis, 30 to 75% of Al2O3, 20 to 55% of ZrO2, 5 to 15% of SiO2, 0.12 to 1.52% of Na2O, and 0.11 to 1.46% of K2O, and satisfies formulas (1) and (2). 0.080≤(Na2O+K2O/1.52)/SiO2≤0.140 (1) 0.2≤(K2O/1.52)/(Na2O+K2O/1.52)≤0.6 (2) (In formulas (1) and (2), the chemical formulas represent the contents (mass%) of the chemical formulas in the refractory.)
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机译：提供：一种氧化铝-氧化锆-二氧化硅（AZS）熔铸耐火材料，其中在生产AZS熔铸耐火材料的过程中进一步防止了裂纹的产生，并且减少了研磨和抛光部件;以及使用该玻璃熔炉的玻璃熔炉。这种以氧化物为基础的AZS熔铸耐火材料包含30％至75％的Al 2 O 3 ，20％至55％的ZrO 2 < / Sub>，SiO 2 的5％至15％，Na 2 O的0.12％至1.52％和K 2 的0.11％至1.46％ ，并且满足公式（1）和（2）。 0.080≤（Na 2 O + K 2 O / 1.52）/ SiO 2 ≤0.140（1）0.2≤（K 2 O / 1.52）/（Na 2 O + K 2 O / 1.52）≤0.6（2）（在公式（1）和（2）中，化学式表示耐火材料中化学式的含量（质量％）。
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