Alkali resistant fire bricks have many advantages compared with conventional refractory bricks. They are characterized by excellent alkali resistance, and they can resist temperatures up to 1400 °C without significant deterioration. Their mechanical properties and stability are also very good even when the temperature changes rapidly. Furthermore, their thermal stability and hydraulic pressure resistance are also better than that of traditional refractory materials.
Alkali-resistant fire brick can be made from refractory clays and high alumina content raw materials, and these are usually molded into desired shapes after drying and firing processes. Their porosity is usually around 25%, allowing them to offer excellent thermal insulation properties. Alkali resistant fire brick is often manufactured with low iron content to increase its alkali resistance, and to improve their heat resistance and strength. They can also be formed into complex shapes or into special sizes required for the specific application.
In general, alkali resistant fire brick can be used for the lining of industrial furnaces and for fireplaces, as well as being used in the construction of chemical and power generation plants. Because of their excellent performance in terms of heat insulation, they are also often used in the production of food and beverage containers, such as bottles and cans. In addition, they have been used in the manufacture of effervescent tablets and glass bottles, due to their flame retardant properties.
Alkali-resistant fire bricks can have many other advantages and applications depending on their chemical composition and the firing process. They are chemically stable against the saline on which these industries are often dependent, and they offer a higher resistance to thermal shock, making them ideal for use in different types of furnaces. These bricks also offer excellent insulation property when used for thermal and electrical insulation.
Alkali-resistant fire bricks also have a high calcining temperature and a very low permeability rating. The high temperature helps to increase their durability and strength as well as increasing their chemical stability. Additionally, their low permeability allows them to work well even in the presence of high temperatures, steam and corrosive vapors.
Alkali-resistant fire bricks offer excellent performance in an industrial setting and are often used in the production of steel, aluminum and other metals. Their ability to resist thermal shock and chemical corrosion makes them ideal for use in chemical plants, power generation plants and other related industries. Their competitive pricing, chemical and physical properties and their availability make them a popular choice among industry professionals.
