Dense corundum is a new type of high-purity refractory raw material made of high-purity alumina and reducing agent in a certain proportion in the electric arc furnace after melting at high temperature. The main crystal phase of the dense corundum is a-Al2O3, the main crystal phase is greater than 96%, and the porosity is less than 4%. It has good acid and alkali resistance, good wear resistance, erosion resistance and volume stability at high temperatures. The color is Light gray, with high melting point, relatively high bulk density and very low porosity. It has excellent wear resistance, slag resistance, volume stability and thermal shock resistance at high temperatures. It is a corundum series refractory raw material Medium excellent refractory raw materials.
It is an ideal raw material for making various shaped refractory materials such as blast furnace iron ditch castables, ladle castables, ramming materials, prefabricated parts, and three continuous castings, breathable bricks, nozzle blocks and other shaped products. It is widely used in steel, cement , Ceramics, petrochemical and other industries. It is widely used in the industries of iron and steel metallurgy, petrochemical industry, building materials, ceramics, etc.It is mainly used as the aggregate of refractory ramming material and castable for blast furnace iron ditch.It is also an excellent material for making steel nozzles, slide plates and various corundum bricks.
|Smelting furnace||Dense corundum|
Dense corundum is a new type of high-purity refractory raw material made of high-purity alumina and reducing agent in a certain proportion in the electric arc furnace after melting at high temperature.
|chemical composition||AI2O3%||SIO2%||FE2O3%||TIO2%||CAO%||MGO%||NA2O%||C%||Apparent porosity%||Bulk density%|