?High alumina refractory brick, that is, an aluminum silicate refractory material with an alumina content of more than 48%. It is formed and calcined from bauxite or other raw materials with high alumina content. High thermal stability, refractoriness above 1770?. Good slag resistance. High alumina bricks are the most widely used type of refractory bricks. Therefore, the price of high alumina bricks directly affects the production cost of enterprises.
The influence of alumina content on the price of
high alumina bricksOne of the important working properties of high alumina refractory bricks is the structural strength at high temperature, which is usually evaluated by the softening deformation temperature under load. Its high-temperature creeps property was also measured to reflect its high-temperature structural strength. The test results show that the softening temperature under load increases with the increase of Al2O3 content. High-alumina brick manufacturers are divided into three grades according to the Al2O3 content of Al2O3: Grade I-Al2O3 content>75%; Grade II-Al2O3 content is 60-75%; Grade III-Al2O3 content is 48-60%, generally That said, the three grades divide lightweight brick into three price ladders.
The alumina content of high alumina bricks is more than 48% and belongs to neutral refractory brick manufacturers. It is formed and calcined from bauxite or other raw materials with high alumina content. High thermal stability, the temperature of refractory brick manufacturers is above 1770 ?. It has good slag resistance and is used for the lining of steelmaking electric furnaces, glass melting furnaces, cement rotary furnaces, etc. This product has the advantages of small creep at high temperatures, strong corrosion-resistance, and good thermal shock stability, and is suitable for large and medium-sized hot blast stoves.
The production process of high alumina bricks and multi-clinker clay bricks is similar, the difference is that the proportion of clinker in the ingredients is higher, which can be as high as 90-95%. Higher, such as I, II, and other high alumina bricks are generally 1500 ~ 1600 ? when fired in a tunnel kiln.
