Industry Knowledge of Magnesia-Chrome Refractory Brick

Magnesia-chrome refractory bricks, also known as MgO-Cr2O3 bricks, are a common type of refractory brick used in high temperature industrial applications. These bricks are made from a combination of magnesium oxide and chromium oxide, which give them excellent resistance to both high temperatures and chemical corrosion.

Magnesia-chrome refractory bricks are classified into different grade levels based on their chemical composition, which influences their properties. The two most commonly used grades are the direct-bonded and fused-cast varieties. Fused-cast bricks are typically more expensive, but have a higher density and better resistance to slag and corrosive materials.

In terms of technical parameters, magnesia-chrome refractory bricks have a high melting point, usually around 1800-1900 degrees Celsius. They also have a low creep rate, which means they maintain their shape and don't lose strength even at high temperatures. Additionally, they have excellent thermal shock resistance, which means they can withstand sudden changes in temperature without cracking.

The production process for magnesia-chrome refractory bricks involves a series of steps, including mixing the raw materials, shaping the bricks, and firing them at high temperatures. The precise composition of the bricks is carefully controlled to ensure consistency and optimal performance.

Overall, magnesia-chrome refractory bricks are an important component in high temperature industrial applications, such as in steel and cement production. Their excellent properties and careful production process make them a reliable and effective option for maintaining the integrity of furnaces, kilns, and other high temperature equipment.