The usage temperature and purpose of four common refractory bricks
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2024-02-21
1. Clay refractory brick is an acidic refractory brick that has good resistance to acidic slag or gas erosion in areas. Used for refractory masonry in general furnaces and kilns. Lining material. The operating temperature of the furnace wall, furnace bottom, flue, etc. is below 1250 ℃. The combustion furnace is allowed to use temperatures above 1400 ℃.
2. High alumina bricks are aluminum silicate refractory bricks with high refractory temperature and wear resistance. They are used in areas with high temperature resistance and wear resistance in general kilns, as well as in masonry with high loads, burner bricks, and special requirements. The arch of the high-temperature zone of the combustion chamber allows for a temperature range of 1300~1650 ℃.
3. Lightweight clay bricks, also known as thermal insulation clay bricks, are a type of insulation material used as furnace linings that are not affected by high-temperature slag and corrosive gases. They can be used at temperatures between 1150 and 1400 ℃ depending on their capacity.
4. Lightweight high alumina bricks, also known as high alumina polymeric light bricks or high alumina thermal insulation bricks, are used for heat-resistant linings with working temperatures below 1350 ℃, and can also be used for masonry without high-temperature melt erosion and erosion. They can directly come into contact with flames.
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