Red marble high alumina brick is produced at a high temperature of 1500 ℃ using red marble as the main raw material, with the addition of mullite, kyanite, and various additives. The high alumina bricks made of red marble have the following main characteristics. 1. Low high-temperature creep rate, 2. Strong high-temperature volume stability, 3. Small coefficient of thermal expansion, low thermal conductivity, 4. High load physical and chemical temperature. For this reason, the product has been widely used in parts with drastic temperature changes such as blast furnaces, hot blast stoves, carbon furnaces, torpedo cars, and mixed iron furnaces, and has achieved good results in use.
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