Clay firebrick refers to clay products with Al2O3 content of 30-40 percent aluminum silicate material. Solid clay firebrick is one of the oldest building materials in the world. From the Mausoleum of Qin Shihuang in Shaanxi Province to the Great Wall of Ming and Qing Dynasties in Beijing, it has inherited the architectural civilization of the Chinese nation for thousands of years. It is still the country's favorite building material. Clay firebrick local materials, cheap, durable, as well as fire, heat insulation, sound insulation, moisture absorption and other advantages, widely used in civil construction projects.

Clay firebrick is a kind of common refractory material, which has excellent fire resistance and thermal stability. It is made from a specific proportion of clay through a molding, drying and sintering process. Clay firebrick is widely used in high temperature industrial equipment, such as furnace, heat treatment furnace, iron furnace, etc. It plays an important role in protecting equipment and extending the service life of equipment. With excellent fire resistance, it can maintain the stability and integrity of the structure in high temperature environment. This is because the main component of clay refractory bricks is clay minerals, which have a high melting point and high temperature resistance. At high temperatures, clay minerals do not melt or decompose, thus maintaining the structural stability of refractory bricks. In addition, clay minerals also have good thermal conductivity, which can effectively disperse and conduct heat, thereby reducing the influence of thermal stress and thermal expansion on refractory bricks.

The application range of clay firebrick is wide, including steel, building materials, chemical, electric power and other industries. In the furnace, clay firebrick is often used as the lining material, which can effectively protect the furnace from high temperature and corrosion. In the heat treatment furnace, clay refractory bricks can withstand the thermal stress at high temperatures, extend the service life of the equipment, in the iron furnace, clay refractory bricks can withstand high temperatures and the erosion of metallurgical substances, maintain the stability and durability of the furnace.

Clay firebrick is a kind of refractory material with excellent fire resistance and thermal stability, which is widely used in high temperature industrial equipment and plays an important role in protection.