Magnesia chrome brick is mainly made of fused magnesia chrome sand, sintered magnesia chrome sand, chrome concentrate and high purity sintered magnesia sand. Then through reasonable gradation, high pressure molding, ultra high temperature firing. Magnesite chrome bricks is characterized by excellent corrosion resistance and thermal shock resistance.
This series of refractory brick has high fire resistance, high strength at high temperature, strong corrosion resistance to alkaline slag, good thermal stability, and some adaptability to acid slag. The main raw materials of magnesia chrome brick are sintered magnesia and chromite. The purity of magnesia raw material should be as high as possible. The requirements of chromite chemical composition are: Cr2O3:30 ~ 45%, CaO: ≤1.0 ~ 1.5%. Magnesite chrome bricks is characterized by high structural strength at high temperature, high softening temperature under load and strong resistance to chemical erosion.
Magnesia chrome refractory brick is widely used in cement rotary kiln firing belt, glass melting furnace, electric furnace, converter and non-ferrous metal smelting furnace. To be specific, magnesite chrome bricks is mainly used in metallurgy industry, such as building open hearth furnace roof, electric furnace roof, furnace refining furnace and a variety of non-ferrous metal smelting furnace. The high-temperature part of the wall of the ultra-high power electric furnace adopts fused cast magnesia chrome brick, the high-erosion area of the refining furnace outside the furnace adopts magnesia chrome brick made of synthetic material, and the high-erosion area of the non-ferrous metal flash melting furnace adopts fused cast magnesia chrome brick and the magnesia chrome brick made of synthetic material. In addition, magnesia chrome brick is also used in cement rotary kiln firing belt and glass kiln regenerator and other parts.
Magnesia chrome bricks are also used in lime kilns because of their high fire resistance, high strength at high temperature, strong resistance to alkaline slag, good thermal stability and adaptability to acid slag. If you have any questions about firebrick products, please feel free to contact us. We will do our best to serve you.