Golden is due to ferric iron or in individual situations are as a result of trivalent chromium. Golden sillimanite combines with iron and 0.3 1.8% combination of chromium.

Fused materials are rarely open tone hole, significantly reduces channel of glass penetrated refractories, greatly enhances the corrosion resistance of products.

we can see a hint of smoke, this time do not panic, because this does not mean that the quality of the product in question, it is normal to use phenomenon, in the volatile binder fibers only, upon evaporation.

Technological characteristics of clay brick important apart, plasticity, conclusion and sintering. These properties directly influence its function as a refractory.

Electric smelting Corundum Brick glass erosion from surface, surface tension of liquid products, erosion of glass size affect diffusion rate of erosion products size, natural erosion of fused bricks can also affect the speed.

High-alumina products, production processes and guessed that the clay mass production process is similar.