High purity refractory castable

As everyone knows, high purity refractory castable is born along with the people to improve the metallurgical materials technology and equipment requirements of high power and large scale,

because of the strict of smelting metal liquid component, the component of fireproof materials must be of high purity. Its main varieties of high purity corundum, chromium corundum, high purity of high purity magnesium chromium corundum castable refractory.

High purity corundum refractory castables are mainly used in large and medium-sized ultra high power electric furnace lid triangle zone and the cover of LF ladle refining etc.. Using white fused corundum, high purity tabular corundum and dense corundum as aggregate, dense corundum, white corundum as powder, adding activated SiO2 powders and α -Al2O3 powder amount, at the same time, the addition of dispersant and water reducing agent, the formula and suitable extruding process can produce a life-time when over the import similar products of high purity corundum castable refractory.

High purity chromium corundum refractory castables

is mainly used to produce porous brick and nozzle etc., are widely used in the steel industry, the social benefit and economic benefit are good. The material is mainly tabular corundum and dense corundum as aggregate, white fused corundum as powder, add appropriate amount of industrial chromium oxide powder, activity of SiO2 and powder amount, to CA-80 cement as binder, and adding water reducing agent and retar-Al2O3 prepared.

High purity magnesium chromium corundum castable refractory was developed on the basis of high purity corundum and magnesia refractory castable. Mainly used in air brick, brick, brick, the outer lining of RH nozzle and ladle slag line position; use the effect is also very good. Add the appropriate Cr2O3 powder in high pure magnesium spinel refractory castable, can form MgO and Mg at high temperature (Al, Cr) 2O3 solid solution, so as to improve the high temperature performance.