Refractory Bricks

Lower price high quality Corundum and mullite burner bricks

Jan 04,2022

Corundum and mullite burner bricks

Corundum and mullite burner bricks are shaped refractory products with corundum and mullite as the main raw materials, and the main crystal phases are mullite and corundum. By adding appropriate amounts of alumina, silica ultrafine powder and additives, it can be heated in an oxidizing atmosphere. Fired. The content of AL2O3 is 85~92%, and the high temperature stable crystal phase is mullite and corundum. Its products have high temperature resistance, erosion resistance and good chemical stability. It is a high-quality high-quality high-grade refractory material with corrosion resistance. Good resistance to erosion and erosion.

Corundum mullite burner bricks usage

Corundum mullite burner bricks are mainly used in high-temperature kilns, and their use conditions are relatively harsh. In order to ensure the performance of the product and prolong the service life of the kiln, the refractory materials used must have good resistance to penetration, slag erosion and thermal shock wear resistance, and the size of the apparent porosity directly affects the usability of the material. However, the apparent porosity is too high, and the corrosion resistance becomes poor. Therefore, the value of apparent porosity should not be too high.

Corundum mullite burner bricks main technical data

Compressive strength mainly reflects the uniformity of the internal quality of the material and the sintering condition of the product, which affects the erosion resistance of the product. The high compressive strength at room temperature and low apparent porosity indicate that the product has a dense and uniform structure and good sintering, thereby ensuring that the product has good resistance to erosion and erosion.

Corundum mullite burner bricks

The load softening temperature is the temperature at which the refractory material reaches a certain compression deformation under the combined action of a certain heavy load and thermal load. It is an important indicator of the refractory material's resistance to heavy load and high temperature thermal load. The softening temperature of refractory materials under load mainly depends on the chemical mineral composition of the product, and secondly is related to the firing temperature, structure and density of the material.

Due to the different working conditions of the kiln, the products are used for different purposes, so you must first contact us to determine the indicators and determine the drawing of the burner brick during the ordering process.

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