北京small crucible

The small crucible is made of clay as the main raw material, which is stirred into plasticity and extruded by machinery. The extruded soil block is called brick, which is sent into the kiln after air drying and then calcined at 900-1000 ℃. Content of Al2O3: 30-35%.

The main chemical components are alumina and silicon dioxide, and also contain ferric oxide, calcium oxide, potassium oxide, sodium oxide, titanium dioxide, etc. It has the characteristics of good high temperature performance and good thermal shock resistance.