How to correctly select the corundum

1, white fused alumina abrasive, slightly higher than the hardness of corundum, but poor toughness, easy to cut into the workpiece during grinding, good self-sharpening, less heat, grinding ability, high efficiency. Chromium corundum abrasive is its derived varieties.
2, corundum abrasive, the main component of Al2O3, with medium hardness, toughness, particle Fengrui, relatively inexpensive, suitable for machining high tensile strength of the metal. Microcrystalline corundum abrasives and black corundum abrasives are its derived varieties.
Many of my friends in the purchase of corundum, grit and other abrasives, there will be carefully selected, select the correct product corundum blasting machines and other equipment will not affect the operation of the machine can cause serious trouble, corundum and other abrasives are generally divided into steel cut wire shot, alloy balls, white cast iron balls just in the use of corundum, because of the hardness of corundum is low and difficult to break, to maintain the shape of a blunt garden, on the leaves to shock, move-based, so the In this case the role of blade grinding suffered weak, partial grinding surface cracks and scratches a little more. In the scanning electron microscope samples for imported true for low-times be observed, that the lateral wear surface of a bulk wave, ripple motion perpendicular to the direction of the projectile.
3, single crystal corundum abrasive material particles are composed of a single crystal, and has a good polygonal cutting edge, high hardness and toughness, grinding ability, less grinding heat, the disadvantage is the high cost of production, yield lower, so the price is relatively high. White fused alumina abrasive is crystalline compound, slightly lower hardness, crystal size is fine, good wear resistance.
4, black silicon carbide abrasive, green silicon carbide abrasive, abrasive cubic silicon carbide, silicon carbide abrasive cerium, etc., are silicon carbide abrasive, the main ingredient is silicon carbide SiC, high hardness, brittleness, sharp abrasive grains, good thermal conductivity, strong wear resistance, more suitable for processing hard and brittle metallic and non-metallic products.