Industry Knowledge of Magnesia-Carbon Refractory Brick

Magnesia-carbon refractory brick is a type of refractory bricks that is commonly used in the steelmaking industry. It is made by mixing high purity magnesia and high carbon graphite together. The magnesia-carbon refractory bricks have high thermal conductivity, thermal shock resistance, and wear resistance that make them ideal for use in the lining of steelmaking furnaces.

Magnesia-carbon refractory bricks are classified into three grades based on their carbon content. The first grade contains 10-15% carbon, the second grade contains 8-10% carbon, and the third grade contains 5-8% carbon. The higher the carbon content, the higher the thermal conductivity and the better the resistance to oxidation and wear.

The technical parameters of magnesia-carbon refractory bricks include thermal shock resistance, slag resistance, creep resistance, and thermal conductivity. High-quality magnesium-carbon refractory bricks should have a high thermal shock resistance, good slag resistance, and low creep rate.

The production process of magnesia-carbon refractory bricks consists of several steps: raw material selection, mixing, molding, drying, and firing. The raw materials, high purity magnesia, and high carbon graphite must be selected carefully to ensure the quality of the final product. The mixing process is critical as it determines the carbon distribution in the brick. The molding process involves pressing the mixture into the desired shape. The bricks are then dried and fired at high temperatures to achieve a high-density product.

Magnesia-carbon refractory bricks have become an essential material in the steelmaking industry. They are widely used in steelmaking furnaces such as converters, electric arc furnaces, and ladles. The demand for these bricks is expected to rise as the steel industry continues to grow. The industry's future looks promising, with advancements in technology and the development of new production processes aimed at producing bricks with better technical parameters.