In August 12tons insulation refractory fire corundum mullite brick and ceramic fiber blanket are packed for delivering to customer in UAE. High quality and best price refractory fire bricks in Topower Refractory.
High-purity corundum mullite brick refers to a high-temperature refractory brick with an alumina content of more than 90%, mainly composed of corundum and a small amount of other additives. The main component of corundum brick is alumina (Al2O3), which is a material with high hardness, high melting point and high temperature resistance. It has good chemical stability and strong resistance to acidic or alkaline slag, metal and glass liquid.
Among the chemical components of corundum bricks, alumina is the most important component, accounting for most of the total mass of corundum refractory bricks. Corundum is an ore composed of alumina crystals, which can form a highly ordered crystal structure at high temperatures. Corundum has very high hardness, second only to diamond, which makes corundum bricks have good wear resistance and Refractory properties. In addition to alumina, Insulation material corundum fire bricks also contain a small amount of other additives, such as silicate, aluminum silicate and magnesium aluminate. The presence of these additives can improve the performance of corundum bricks, such as increase its fire resistance, shock resistance and wear resistance, etc.
The preparation process of corundum mullite bricks usually includes the steps of raw material selection, grinding, molding, sintering and surface treatment. In terms of raw material selection, high-quality corundum ore is the basis for preparing high-quality corundum refractory bricks. The grinding process can make the size of the raw material particles uniform, which is beneficial to the subsequent molding and sintering. The forming process can produce corundum mullitebricks of different shapes and sizes according to needs. Sintering is a key step in the preparation of corundum fire bricks. Through the sintering process at high temperature, the corundum particles are combined to form a solid brick body. Finally, the surface finish and aesthetics of corundum bricks can be improved by surface treatment.
Ceramic fiber blanket, also known as aluminum silicate fiber blanket, is a new type of fire-resistant and heat-insulating material. The product is white in color and regular in size. After the double-sided needle punching process, the interweaving degree, anti-delamination performance, tensile strength and surface smoothness of the fibers are greatly improved.
The fiber blanket does not contain any organic binder to ensure that the ceramic fiber blanket has good formability and stability under high temperature and low temperature conditions. Aluminum silicate fiber blanket colorClean white, neat and tidy, it integrates fire resistance, heat insulation and heat preservation. Does not contain any binders. existIt can still maintain good tensile strength, toughness and fiber under long-term use in neutral and oxidizing atmospheres structure. The temperature resistance is 950-1400°C. It dominates the use of modern high-temperature pipelines.
The ceramic fiber blanket has strong heat insulation ability, so it can save more heat, which is the same kind of insulation
Thermal insulation materials such as thermal insulation bricks have 1.2 times the energy-saving capacity, and are gradually replacing asbestos products. Its advantage is that it does not contain ingredients harmful to the human body.
