About corundum abrasive characteristics and processing technology introduction

Corundum abrasives, white fused alumina, white fused alumina block, abrasive corundum, white corundum sand (WA)
White fused alumina abrasive is alumina as raw materials, high temperature melting together. White, slightly higher hardness than corundum, lower toughness. Made with corundum abrasive for high carbon steel, high speed steel and hardened steel grinding. Corundum abrasive, white corundum abrasive polishing material can be used, but also for precision sand casting, coating materials, chemical catalyst carrier, special ceramics, advanced refractories.
White fused alumina abrasive chemical composition:
Chemical composition size range AI2O3 (%) Na2O (%)
F12 - F80 ≥ 98.5 ≤ 0.50
F90 - F150 ≥ 98.5 ≤ 0.60
F180 - F220 ≥ 98.2 ≤ 0.70
Physical properties of corundum abrasives: Physical property
Basic mineral crystal size μm really infer g/cm3 Bulk density g/cm3 microhardness g/mm2
α-AI2O3 600 ~ 1400 ≥ 3.90 1.5 ~ 1.95 2200 ~ 2300
Corundum abrasive properties: white, hard and brittle than corundum, strong cutting force, good chemical stability, with good insulation. White fused alumina abrasive Scope: do solid structure and coated abrasives, wet or dry spray sand, suitable crystals, the electronics industry and ultra-fine grinding and polishing production advanced refractory. Suitable for machining hardened steel, alloy steel, high speed steel, high carbon steel and other hard hardness, tensile strength greater material. Corundum abrasives can also be used as catalyst, insulators and precision casting sand.