Electrofused refractories are products formed by melting raw materials with electric heating and then casting or other methods. Examples include electrofused zirconia-mullite products, electrofused zirconia-corundum products, and electrofused quartz products. They offer advantages such as high operating temperature, resistance to glass erosion, high mechanical strength, and good wear resistance. However, they are costly to manufacture and consume a lot of energy. They are best suited for lining glass melting furnaces.
Electrofused refractories are mainly used in the lining of glass melting furnaces, such as burner nozzles, flow channels, working pools, feeding inlets, and furnace sills. They are suitable for specific furnace types, such as all-oxygen furnaces and ultra-clear glass furnaces. In the superstructure, specific types of electrofused refractories can be used to prevent contamination from siliceous flow from the arch and from exudates from the fused AZS bricks themselves. Low-glass-phase AZS materials can effectively solve the problem of glass phase contamination of the molten glass from materials in the upper flame space.
