Mullite refractory bricks for furnaces refer to refractory products made of high-purity or relatively pure raw materials. The presence of low melting point oxide impurities will reduce its high-temperature performance. Use industrial alumina powder and pure clay, bauxite, or silica as raw materials to synthesize pure mullite raw materials, especially the content of alkali metal oxides should be as low as possible.
(1) High-temperature resistance, high refractory temperature, and high load softening temperature.
(2) Chemical resistance, strong resistance to acidic solutions or molten slag.
(3) Antioxidant. It is not easy to react with O2, H2, CO, and other gases.
(4) Good thermal stability, stable volume at high temperature, not easy to expand or shrink.
(5) Good thermal shock resistance, resistance to rapid cold and heat, and not easy to peel off.
(6) High compressive strength at room temperature, and it is not easy to wear when handling or unloading.
Mullite refractory bricks for the furnace can be directly exposed to flame, peel off, and high-temperature resistance. They can be used as heat insulation linings for high-temperature industrial furnaces and working layers for other industrial high-temperature furnaces. They are mainly used in the petrochemical industry and large and medium-sized synthetic ammonia gasification. Furnace and magnetic materials, gas furnace materials, high-temperature industrial furnace supporting facilities materials.
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