8 kinds of refractory materials commonly used in heat treatment furnace and their use parts
The raw materials of refractory clay bricks are mainly refractory clay and kaolin. The chemical composition of the refractory clay brick is Al2O3(mass fraction is 30% to 40%), SiO2(mass fraction is 50% to 65%), and the rest is various metal oxides
Ordinary clay bricks are the most used in heat treatment furnaces, and are generally used for laying the top, bottom, wall, and combustion chamber. In the heat treatment furnace, there will be a chemical reaction between the iron chromium aluminum alloy and the clay brick, and the clay brick will cause the corrosion of the iron chromium aluminum alloy. Clay bricks are easily destroyed by CO and H2 erosion in controlled atmosphere.
