Mullite lightweight castable is a refractory castable made of porous mullite aggregate as raw material, plus fine powder and additives. The critical particle size of mullite aggregate is 12mm; the long-term use temperature is 1350 degrees. The mullite castable has a high operating temperature and can be used as a working lining in direct contact with the flame to achieve high temperature and energy saving.
 

Features of mullite lightweight castable

Lightweight mullite castables have the advantages of high mechanical strength and good thermal shock resistance, anti-abrasion and other properties, energy saving, good integrity, flexible adjustment of composition, production and other advantages, mullite castables are unshaped One of the refractory materials.

 

Lightweight mullite refractory castable has excellent high temperature performance, small bulk density and thermal conductivity. Because it uses high-quality synthetic raw materials and is combined in the form of low cement or micropowder, it can be used as a direct contact with the flame. kiln lining.

As the aggregate of this type of refractory castable, lightweight mullite can be said to be its main component, and the performance indicators of the refractory castable can be determined entirely by it, so the selection of lightweight mullite must be serious. conduct. The first choice must be a regular refractory castable manufacturer.

Due to the different testing methods for the bulk density and compressive strength of lightweight aggregates, the raw materials should be further tested for the performance indicators of the refractory castables produced with mullite aggregates. This will help determine the quality of the raw materials. Very useful. And it is necessary to appropriately increase the critical particle size of mullite aggregate, which is necessary to enhance the compressive strength of refractory castables. If the critical particle size is relatively large, it is very unfavorable for the construction of refractory castables. The refractory castable produced from a variety of lightweight aggregates with a relatively large bulk density of raw materials has high compressive strength and flexural strength. And the production process of different manufacturers is different, and the strength of mullite light aggregate itself is also very different. It should be mentioned here that lightweight aggregates with different bulk densities have a great impact on the performance indicators of refractory castables. As for the raw materials used, they must be carefully and carefully selected.