Definition and types of magnesia bricks
2025-03-04 08:52:33
Magnesia bricks are a type of refractory material made of magnesia ore as the main raw material and fired at high temperature. It is mainly used in various high-temperature fields such as various industrial furnaces and steel smelting under high temperature environments, and is widely used due to its excellent refractory properties and chemical stability. The main component of magnesia bricks is magnesium oxide (MgO), which has high refractoriness and thermal shock resistance, and can maintain structural stability at extremely high temperatures. Magnesia bricks are not only suitable for the steel industry, but also play an important role in many high-temperature industries such as cement, glass, and fertilizers.
Types of magnesia bricks
Magnesia bricks can be divided into many types according to different raw materials, production processes, and uses. The following are several common types of magnesia bricks:
High-purity magnesia bricks
High-purity magnesia bricks are made of high-purity magnesia ore as the main raw material and fired at high temperature. This type of magnesia brick has a high MgO content, usually above 95%. Due to its high purity, high-purity magnesia bricks have stronger resistance to chemical corrosion and excellent high-temperature resistance, and are widely used in high-temperature environments, such as high-temperature furnaces in the petrochemical industry.
Magnesia-chrome brick
Magnesia-chrome brick is a composite refractory material that combines the advantages of magnesia brick and chrome brick. It is made of magnesia sand and chrome ore as the main raw materials and is fired at high temperature. Magnesia-chrome brick has good thermal stability, thermal shock resistance and anti-permeability, and is often used in high-temperature fields such as electric furnaces, converters and cement kilns for steel smelting.
Lightweight magnesia brick
Lightweight magnesia brick is a low-density refractory material made by adding lightweight materials (such as perlite, expanded perlite, etc.). This kind of magnesia brick has a lighter weight while maintaining high refractory performance, and is suitable for industrial equipment that needs to reduce structural loads.
Magnesium carbide brick
Magnesium carbide brick is a new type of refractory brick, which is obtained by carbonization treatment on the basis of magnesia brick. Magnesium carbide brick has stronger thermal shock resistance, high temperature resistance and corrosion resistance, and is suitable for special high-temperature environments, such as high-temperature furnaces and metal smelting fields in the petrochemical industry.
Refractory magnesia bricks
This type of magnesia bricks is mainly used in high-temperature thermal equipment, such as smelting furnaces, heating furnaces, etc. It has strong oxidation resistance and corrosion resistance and is usually used inside high-temperature furnaces in the fields of steel smelting, petrochemicals, etc.
In summary, magnesia bricks have developed into various types according to different uses and performance requirements. Choosing the right type of magnesia bricks can improve the working efficiency of industrial furnaces, extend their service life, and reduce maintenance costs.
Types of magnesia bricks
Magnesia bricks can be divided into many types according to different raw materials, production processes, and uses. The following are several common types of magnesia bricks:
High-purity magnesia bricks
High-purity magnesia bricks are made of high-purity magnesia ore as the main raw material and fired at high temperature. This type of magnesia brick has a high MgO content, usually above 95%. Due to its high purity, high-purity magnesia bricks have stronger resistance to chemical corrosion and excellent high-temperature resistance, and are widely used in high-temperature environments, such as high-temperature furnaces in the petrochemical industry.
Magnesia-chrome brick
Magnesia-chrome brick is a composite refractory material that combines the advantages of magnesia brick and chrome brick. It is made of magnesia sand and chrome ore as the main raw materials and is fired at high temperature. Magnesia-chrome brick has good thermal stability, thermal shock resistance and anti-permeability, and is often used in high-temperature fields such as electric furnaces, converters and cement kilns for steel smelting.
Lightweight magnesia brick
Lightweight magnesia brick is a low-density refractory material made by adding lightweight materials (such as perlite, expanded perlite, etc.). This kind of magnesia brick has a lighter weight while maintaining high refractory performance, and is suitable for industrial equipment that needs to reduce structural loads.
Magnesium carbide brick
Magnesium carbide brick is a new type of refractory brick, which is obtained by carbonization treatment on the basis of magnesia brick. Magnesium carbide brick has stronger thermal shock resistance, high temperature resistance and corrosion resistance, and is suitable for special high-temperature environments, such as high-temperature furnaces and metal smelting fields in the petrochemical industry.
Refractory magnesia bricks
This type of magnesia bricks is mainly used in high-temperature thermal equipment, such as smelting furnaces, heating furnaces, etc. It has strong oxidation resistance and corrosion resistance and is usually used inside high-temperature furnaces in the fields of steel smelting, petrochemicals, etc.
In summary, magnesia bricks have developed into various types according to different uses and performance requirements. Choosing the right type of magnesia bricks can improve the working efficiency of industrial furnaces, extend their service life, and reduce maintenance costs.