Clay refractory bricks are aluminum silicate refractory materials made of refractory clay as the main raw material and sintered at high temperature. They are widely used in high-temperature equipment in the fields of metallurgy, building materials, and chemical industry. Their performance characteristics show unique advantages in high-temperature industries and have become an irreplaceable furnace building material.
What are the performance characteristics of clay refractory bricks? We will give you a detailed answer.
Excellent high temperature resistance
The refractoriness of clay refractory bricks can reach 1580-1770℃, and the long-term use temperature can reach 1300-1450℃. Its high-temperature stability is derived from the stable skeleton structure of the mullite crystal phase in the clay and the dense matrix formed by the quartz and glass phases, which can effectively resist high-temperature thermal stress and load deformation.
Excellent thermal shock stability
By adjusting the apparent porosity, evenly distributed micropores are formed in the brick body, giving it thermal shock resistance. Under the 1100℃ rapid cooling and heating cycle, the number of thermal shock resistance can reach 10-25 times, significantly extending the service life of the kiln under temperature sudden change conditions.
Good chemical stability
It is mainly composed of SiO₂ and Al₂O₃, is weakly acidic to neutral, has strong resistance to acidic slag and gas corrosion, and can adapt to different acid and alkaline environments by adjusting the raw material ratio.
Economical and process adaptability
The raw material reserves are abundant and the cost is low, and the cost performance is significantly higher than high-end refractory materials such as high-alumina bricks and magnesia bricks; the sintering temperature is low, and the energy consumption and production threshold are relatively low.
As a company that has been deeply involved in the refractory field for more than 30 years, the clay refractory bricks produced by Haixin Refractory deeply integrate traditional craftsmanship and modern technology. At present, our products have been successfully applied to the hot blast furnace systems of dozens of domestic steel companies, and have achieved a stable operation record of more than 5 years in the regenerator of glass kilns. In the future, we will continue to help improve the efficiency of industrial high-temperature equipment with material innovation.