High-purity refractory castable refers to a refractory castable made of fused corundum, a-Al2O3 ultrafine powder and CA-70 or 80 cement. Sometimes, fused magnesia powder and aluminum-rich spinel are added during the production process. Raw materials such as stone powder and Cr2O3 powder. Magnesia brick

As we all know, the vent holes of ventilated bricks are obtained by using extremely thin heat-resistant steel pipes or reasonable pellets of chicken embryos, using expensive isostatic pressing equipment for molding and high temperature firing, so the cost is higher and the price is more expensive; with high purity Chromium (magnesium) corundum refractory castables are used for breathable bricks and nozzle bricks. The vents are made of combustible materials, and they are formed by ordinary vibration dynamics and high-temperature firing. Therefore, many unshaped refractory manufacturers have the production conditions , The production cost is low, that is, the product price is reduced.

High-purity chromium corundum and chromium-magnesium corundum refractory castables are carefully prepared, vibrated, and processed at low and high temperatures. Products such as breathable bricks and nozzle bricks are widely used in thermal equipment such as ladle, or are good Social and economic benefits.

The high-tech and high-performance refractory castables used in large and medium-sized ladle also belong to the category of high-purity refractory castables.