There are some requests for the use of high alumina refractory bricks. First, they are required to be resistant to high temperature. In addition, in high temperature, the refractory bricks will not show thermal expansion and contraction, and will not crack in high temperature, or corrosion and metamorphosis. In the use of high alumina refractory bricks, there are several corrosion conditions. First, the mechanical and thermal power in the furnace, the cracks caused by the cracks, and then the structure changes during the temperature change It is scattered, or it is worn when it is separated from the substance with lower melting point, and so on.
         High alumina refractory brick can resist high temperature heat load without softening or melting. The fire resistance of the refractory brick is quite high. It can resist high temperature heat load, with no shrinkage and only average expansion. The refractory brick has high volume stability, small residual shrinkage and expansion, no crystal transformation and serious volume effect.
         It can resist the combined action of high-temperature heat and heavy load, without losing strength, creep and collapse. The refractory brick has high strength at room temperature and high temperature, high load softening temperature and high creep resistance. It can resist the impact of rapid temperature change or uneven heating without cracking or peeling. The refractory brick is required to have good thermal shock resistance.
         It can resist the chemical corrosion of solution, dust and gas, without degeneration and corrosion. The refractory brick has good slag resistance. It can resist the scour, impact and wear of flame, charge and dust, and the appearance is not damaged. The refractory brick has high compactness and wear resistance at room temperature and high temperature. Resist the impact of high temperature and vacuum operation and atmosphere change, no volatilization and damage. The refractory brick has low vapor pressure and high chemical stability. Uniform shape, accurate specification and size of firebrick, high quality and low price, convenient for transportation, construction and maintenance.