What is the water absorption rate of alumina hollow balls Can hollow balls float when placed in water
Alumina hollow ball is a new type of high-temperature thermal insulation material. Alumina hollow ball is the national standard first-class industrial alumina powder, melted in a three-phase electric arc furnace, and then used compressed air to blow the molten liquid alumina into a hollow ball to obtain an aluminum oxide hollow ball, the crystal form is alpha alumina microcrystals. With alumina hollow ball as the main body, it can be made into various shapes of products, the use temperature is 1800 °C, the mechanical strength of the product is high, which is several times that of general light products, and the bulk density is only half of corundum products.
Alumina hollow ball product introduction
Alumina hollow ball is a new type of high-temperature thermal insulation material, which is to place industrial alumina with alumina content of more than 98% in the electric arc furnace for high-temperature melting, and use compressed air to blow liquid alumina into air balls to obtain alumina hollow balls.
Alumina hollow balls can be made into various shapes of products, the use temperature is 1800 degrees Celsius, the mechanical strength of the products is high, which is several times that of general light products, and the bulk density is only half of corundum products.
Model
There are two kinds of alumina hollow balls: mixed grade balls and grading balls:
The particle size of the mixed grade ball is 0.2-5mm,
The particle sizes of grading balls are 0.2-1mm, 1-2mm, 2-3mm, 3-5mm, respectively.
Alumina hollow ball Al2O3>99% high-purity alumina hollow ball The water absorption rate of alumina hollow ball can reach about 0.5%.
