It is produced by melting mixed pure quartz sand and industrial alumina in huge electric arc funace. With the high content of mullite crystal, high melting point, excellent thermal stability, low reversible thermal expansion and resistance to thermal shock and chemical corrosion at high temperature, the fused mullite can be widely used as lining bricksin glass body kiln and large hot wind furnace in iron-making blast furnace, as well as in ceramic kiln and petrochemistry.
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