What are the characteristics of refractory materials?
Special refractory materials generally have a high elastic modulus. Most have high mechanical strength, but compared to metal materials, their impact resistance is very low due to brittleness. The vast majority of special refractory materials have high hardness, so they are wear-resistant and have good resistance to airflow or dust particle erosion.
2019/12/27
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What are the uses of high-temperature refractory materials?
The current definition of refractory materials no longer depends solely on whether the refractoriness is above 1580℃. Currently, refractory materials generally refer to inorganic non-metallic materials used in the lining of production equipment in metallurgy, petrochemical, cement, ceramics and other industries.
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Wear resistance of refractory materials in practical applications
The abrasion resistance of refractory materials is their ability to resist mechanical wear on their surfaces from solids, liquids, and dust-laden gas flows.
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During normal production, the temperature of the furnace mouth refractory lining is relatively high.
The main reasons for the damage to the refractory lining of the gasifier's furnace mouth are as follows: Excessive thermal stress. Due to the cooling effect of the Texaco burner cooling coil, the upper part of the furnace mouth brick maintains a relatively low temperature, while the lower part of the furnace mouth brick maintains a high temperature due to the high-temperature radiation and high-temperature gas convection in the furnace. Because the temperature difference between the upper and lower ends is large, it is easy to cause excessive thermal stress and cracking of the furnace mouth brick.
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