- Time:Jun 26, 2023
Alkaline refractory brick is a special kind of high-temperature refractory material, mainly composed of alkaline oxides such as magnesium oxide or calcium oxide as the main component, with inorganic substances such as silicates. Alkaline refractory bricks have the following characteristics:
1, strong alkali resistance: because the main component of alkaline refractory brick is alkaline oxide, so it has a strong resistance to alkali erosion, in the alkaline medium is not easy to be corroded and damaged.
2, good resistance to high temperature: alkaline refractory brick has a high degree of refractoriness, can maintain stable performance in high temperature environment above 1500 ℃.
3, strong resistance to vibration: alkaline refractory bricks have good resistance to vibration, can be oscillating, impact and other conditions to maintain stability.
4、Low thermal conductivity: Because the thermal conductivity of alkaline refractory brick is small, so its heat preservation performance is better.
5, high alkali metal content: the main components of alkaline refractory bricks contain more alkali metal elements, these elements are easy to volatilize extremely quickly at high temperatures, so the service life of alkaline refractory bricks is relatively short, need to carry out regular maintenance and replacement.
In short, alkaline refractory bricks are a special kind of high-temperature refractory material with strong alkali resistance, good high-temperature resistance and strong vibration resistance. It is mainly used in glass ceramics, metallurgy, chemical and other industries on the lining of alkaline environment equipment, kiln baking pans and other components to ensure the normal operation of the equipment and extend the service life.
