To distinguish white corundum and fused white corundum, fused aluminum chrome sand can be analyzed in terms of appearance, shape, use, price, etc.
White corundum: Using industrial alumina powder as raw material, it is sieved into various particle sizes. Its texture is dense, its hardness is high, and the particles form sharp angles. It is suitable for manufacturing ceramics, resin-bonded abrasive tools, grinding, polishing, sandblasting, and precision casting. Wait.
Fused white corundum: It is made of industrial alumina or calcined alumina and melted at high temperature in an electric arc furnace. It is an important raw material for making refractory materials and is also widely used in the abrasive industry. The white corundum refractory raw material produced by the fused white corundum electrofusion method has a high content of alumina. The grains of white corundum are complete and coarse. High chemical stability, the above industry alumina or high alumina rock clinker as the raw material is melted in the arc Shanghai, the residue is removed, and the frit is cooled.
Fused aluminum chrome sand
Price comparison: The price of fused white corundum with the same specifications is higher than that of white corundum, so when choosing a substitute, it is necessary to consider whether its use can be replaced, whether the price is cost-effective, and the key is whether the grinding effect will be affected.
White corundum section sand: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 8-12mm
Physical and chemical indicators: Al2O3≥99% Na2O≤0.5% CaO ≤0.4%
White corundum fine powder: 180#-0, 200#-0, 320#-0
Physical and chemical indicators: Al2O3≥98.5% Na2O≤0.5% CaO ≤0.5%
Which is better for fused white corundum?
Fused white corundum is a professional name. Its English abbreviation is AZS. Fused white corundum is a medium and high-grade refractory raw material. volume stability and thermal shock resistance.
Fused white corundum is the main raw material for the production of medium and high-grade uncertain and shaped refractories. Mullite corundum box body, corundum porous plug brick for refining, integral spray gun and composite nozzle, high temperature industrial kiln lining material and other corundum products. Widely used in steel, cement, ceramics, abrasives, petrochemical and other industries.
Commonly referred to as "fused alumina" generally refers to "fused white corundum". White corundum fine powder is made of calcined alumina or industrial alumina as raw material, which is melted at high temperature in an electric arc furnace. , the crystals are elongated and rhombic, and often skeletal crystals. Due to the high purity of the raw material, no chemical reaction occurs in the electric furnace operation, but the temperature and cooling rate of the molten liquid have a great influence on the structure of the block material. In terms of homogeneity, it is important to obtain as dense a block as possible.