high duty refractory bricks are refractory products with high strength. They can be used in the construction of various industrial furnaces and can resist the erosion of high temperatures and different gases and slags.
There are many types of high duty refractory bricks, and the common ones are as follows:
1. High alumina bricks: with an alumina content of more than 48%, they are used in high-temperature and wear-resistant areas of general furnaces or masonry with heavy loads. For example, high alumina bricks can be used in the vault of the high-temperature area of the combustion chamber, with an allowed operating temperature of 1300~1650°C.
High-strength refractory bricks: High alumina bricks
2. Clay bricks: Aluminum silicate material products with an alumina content of 30%-40%. They have wide raw material resources, are easy to process and manufacture, have high thermal stability, and can resist acidity and acidic materials, preferably alkali resistance. It has the properties of refractory slag and has high refractoriness (1580~1730℃). It can be used in various kilns and high-temperature masonry that have both alkaline and acidic slag effects, and can also be used for the lining of power and civil boiler equipment.
3. Silica bricks: They are refractory bricks made of materials containing mainly SiO₂. They are not resistant to alkali erosion and are mainly used for building refractory structures that are subject to acid erosion.
High alumina bricks:Silica bricks
4. Magnesia bricks: Made of MgO-rich materials as the main raw material and fired at high temperatures. They are not resistant to acid erosion and are mainly used for masonry of structures resistant to alkali erosion.
High-strength refractory bricks:Magnesia Chrome Brick
5. Corundum brick: It has high normal temperature compressive strength (up to 340MPa) and load softening starting temperature (greater than 1700℃). It has good chemical stability and is resistant to acidic or alkaline slag, metal and glass liquid. Have strong resistance ability. It is commonly used in various high-temperature kiln linings and kiln furniture in the petrochemical and metallurgical industries.
high heat refractory brick:Corundum brick
The performance indicators of high duty refractory bricks include volume density, true density, porosity, water absorption, air permeability, compressive strength, thermal expansion, thermal conductivity, electrical conductivity and heat capacity. Its strength depends on many factors, such as composition, organizational structure, degree of sintering, etc.
In practical applications, when selecting high duty refractory bricks, it is necessary to consider the specific use environment and requirements, such as temperature, atmosphere, chemical attack and other factors, to ensure that the high duty refractory bricks can meet the use needs of specific industrial furnaces. At the same time, the quality of refractory bricks produced by different manufacturers may also vary. If you need to buy high duty refractory bricks, you can contact whatsApp/Mob:8619515535134, or send questions to zzlx@lxrefractory.com. Professional technical teachers will customize a kiln solution suitable for you. The refractory bricks and refractory materials here are of good quality and affordable, worth your choice