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Material Type
Acid-resistant castable material
Acid-resistant castables have good resistance to all inorganic acids and organic acids except for hydrofluoric acid and hot phosphoric acid. The production process and construction are simple, with high material utilization. They have high strength at room temperature and can also be made into prefabricated parts for installation on-site in kiln rotating work, such as lining castings in chimneys.
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Lightweight acid-resistant castable
Lightweight acid-resistant castables have good resistance to all inorganic and organic acids except hydrofluoric acid and hot phosphoric acid. The production process and construction are simple, with high material utilization. They have high strength at room temperature and can also be made into prefabricated parts for installation on-site in kiln rotation work, such as lining castings in chimneys.
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Chromium corundum castables have high strength and wear resistance, good high-temperature performance, and excellent thermal shock stability.
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Zirconium chrome corundum castable
Mainly used in the lining of melting furnaces in oxidizing atmospheres, carbon black reaction furnaces, coal-water slurry gasification furnaces, non-ferrous metal melting furnaces, and in the steel industry, with operating temperatures generally above 1700 degrees.
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Corundum plastic has excellent characteristics such as good wear resistance, high strength, and good volume stability, making it easy to operate during use.
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Phosphate refractory mud is mainly used in conjunction with phosphate-bonded refractory bricks, such as high-alumina bricks, low-creep high-alumina bricks, and bricks for blast furnaces and hot blast stoves when constructing kiln linings.
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The main material of high-alumina refractory mud is high-alumina clinker, and the binder is soft clay or chemical binder. The Al₂O₃ content is determined based on the composition of the bricks and the usage requirements of the constructed area.
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The magnesia refractory mud used to line the furnace walls should have particles smaller than 0.5mm accounting for no less than 90%, with those smaller than 0.125mm accounting for no less than 50%; the magnesia refractory mud used for bricklaying should have particles smaller than 0.5mm accounting for no less than 97%, with those smaller than 0.088mm accounting for no less than 50%.
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