The Difference Between White Corundum And Aluminum Oxide
Aluminum Oxide is made of high-quality bauxite, anthracite, and iron oxide. It is smelted in an electric arc at a high temperature above 2000 degrees. It is pulverized by an autonomous mill, magnetically separated to remove iron, and sieved into various particle sizes. It has a dense texture and high hardness. The particles form a spherical shape, suitable for the manufacture of ceramics, resin high-consolidation abrasives, grinding, polishing, sandblasting, precision casting, etc., and can also be used for the manufacture of advanced refractory materials.
Uses: Brown fused alumina has the characteristics of high purity, good crystallization, strong fluidity, low linear expansion coefficient, and corrosion resistance. It has been verified by dozens of refractory production enterprises that the product has the characteristics of no explosion, no pulverization, and no cracking during application. In particular, its cost performance is much higher than that of traditional brown fused alumina, making it the best aggregate and filler for brown fused alumina refractory materials.
White corundum grains are made of high-quality aluminum oxide powder. White corundum is refined and crystallized by electric melting. It has high purity, good self-sharpness, acid and alkali corrosion resistance, high-temperature resistance, and stable thermal performance. White corundum has slightly higher hardness than brown corundum, slightly lower toughness, high purity, good self-sharpening, strong grinding ability, low calorific value, high efficiency, acid and alkali corrosion resistance, high-temperature resistance, and thermal stability.
Abrasive tools made of white corundum grain-size sand are suitable for grinding fine-grained abrasives such as high-carbon steel, high-speed steel, and stainless steel. White corundum can also be used for precision casting and advanced refractory materials. White corundum section sand: 0-1mm 1-3mm 3-5mm 5-8mm Physical and chemical indicators: Al2O3≥99% Na2O≤0.5% CaO ≤0.4% Magnetic substances≤0.003%. Brown corundum is the primary raw material of bauxite, anthracite, and iron filings. It is smelted at high temperatures in an electric arc furnace. It is brown in color and has good toughness. High temperature, refractoriness up to 1850 ℃, can be used as a refractory material, and also can be used as an abrasive.
