Fused cast AZS (alumina, zirconia and silica) refractories are good refractory materials, especially for current glass furnaces, and characterized with excellent density, high refractoriness and resistance against corrosion of molten glass. The applications are popularly found in many key positions of various glass furnaces. Fused cast AZS firebricks are mainly categorized into 33#, 36# and 41# according to different zirconia's contents from 33% to 41%.
Good resistance to corrosion of molten glass
Low blistering rate
Little tendency to release zirconia crystal into molten glass
Increasing resistance to corrosion of molten glass
Less glass phase & more zirconia crystal
A good structure of Zr and α Eutectic crystal
Excellent resistance to corrosion of molten glass
Sidewalls, breast walls, ports, pavers, etc. In glass furnace
Position in contact with molten glass, such as doghouse, sidewalls and pavers of melters.
Throats, doghouse, comers, sidewalls, electrodes, bubbler blocks, etc.