Shijiazhuang Mining Imp&Exp Trade Co.,Ltd
Application of Andalusite Brick in Hot Air Furnace
Hot air furnace bricks, which are high temperature structural materials, have very strict requiement for the rate of high temperature creep. Similar to sillimanite. Andalusite has excellent high-temperature structural strength properties. The following table shows the performance comparison between andalusite and mullite, bauxite, corundum and other refractory products. From the table, it is proved that the andalusite's rate of high temperature creep is better than bauxite, corundum and most of the mullite bricks. Andalusite is one of the ideal materials for low creep refractories.
Comparison of Refractory Materials for Blast Furnace Hot Blast Furnace
Chemical analysis W/%
Auxiliary oxide/ %
Creep rate %
The above shows that low creep andalusite bricks will become more and more popular. In addition, it has small volume expansion associated with mullitary process during high temperature, rapid temperature change resistance, good thermal shock resistance and good erosion resistance, etc. It will also have broad prospects in other fields, and the development and production of our andalusite will provide high-quality functional raw materials for the domestic and international refractories industry!
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