Properties And Application Of Andalusite Castable

Adding red pillar stone to the castable can effectively control and reduce the shrinkage performance of the product under long-term high temperature, and improve the creep resistance and fission performance. Different particle sizes of andalusite play different roles in improving the performance of products. Coarse grained andalusite can improve the high-temperature strength of products, and fine-grained andalusite can improve the thermal shock resistance of products, which is an effective help to solve the problem of cracking in the use of castables. Therefore, the high temperature properties of andalusite castables, including the compressive strength after burning, high temperature flexural strength, load softening temperature and creep resistance, are superior. If the plate-shaped corundum powder is added, not only the purity of the matrix will be improved, but also the high-temperature performance and strength of the product can be improved and the use effect can be enhanced by means of the secondary Mullitization reaction. Andalusite castables are often used in Torpedo cans, induction furnaces, ladles, heat treatment furnaces, hot blast furnaces, lime kilns, etc