Alumina powder is alumina Al2O3 solid powder, usually processed for α-al2o3 alumina powder, β-al2o3 alumina powder, γ-al2o3 alumina powder as a different use. α alumina powder has very stable physical and chemical properties, high hardness, wear resistance, high mechanical strength, insulation, high temperature resistance, low amount of burning, low coefficient of thermal expansion, good thermal conductivity and other characteristics, α alumina is usually used as abrasive, toughening agent, refractory materials, polishing materials, etc.
β-alumina powder and γ-alumina powder, also known as active alumina powder, have rich pore structure and large specific surface area, usually used for dehydrating agent, catalyst, catalyst support, etc.
α-alumina micropowder production using high quality industrial alumina, aluminum hydroxide additive technology after low temperature phase conversion calcination, and then using advanced grinding technology and process, the production of activated alumina powder, which is characterized by large activity, low particle size. Especially suitable for shaping products and refractory castables, plastic, repair materials, spraying materials, coating materials and other shaped refractory materials, to improve the high temperature strength of refractory materials, improve the corrosion resistance of materials has a strong role.