ER 2001 SLX: Very Low Exudation AZS Product for Glass Furnace Superstructure

Abstract

Fused cast refractories are widely used in glass soda-limee-silica furnace superstructures due to their high resistance to corrosion by the furnace atmosphere. However exudation of the vitreous phase ofAZS refractories at high temperatures, can lead to the formation of defects in the glass, especially during furnace start-up. The ability of the furnace to digest these inclusions may not be sufficient to avoid production losses for glass makers. To solve this problem, a new fused cast AZS refractory named ER2001SLX has been developed. It offers a zero exudation level under typical glass furnace operating conditions and maintains or enhances all other positive characteristics offused-cast AZS.