large pores in the production and selection wheel

 Large pores wheel production principle and characteristics
Large pores usually selected silicon carbide and masonry saw blades   corundum grinding wheel and other abrasive to produce, such as commonly used are green silicon carbide (GC), black silicon carbide (C) and corundum (A), corundum (WA), such as several of these abrasives brittle and sharp, high hardness, good thermal and electrical conductivity; abrasive particle size (36 # ~ 100 #); binding agent (usually a ceramic binding agent); Hardness (G ~ Q levels); shape (a flat shape, concave, cup, bowl or dish, etc.); pore size (approximately 0.7 to 1.4 mm).
Large pores grinding wheel rotating at granite core bits  high speed, because of the centrifugal force, the wheel center a vacuum state, the air flow speed and form a vortex around the wheel to accelerate the cooling of the workpiece due to heat dissipation, so is suitable for processing a large number of heat-sensitive material (eg magnet tungsten silver alloy) thin-walled workpieces and dry grinding of carbide cutting tools, machine tool guide and so on. Another large pores clogging wheel also has high durability and cutting ability and good.
Some wheel manufacturers through a special method of the wheel internal porosity increases, so as to achieve compliance processing requirements. Large pores in the grinding wheel with high durability, cutting ability and can not easily be sum game, etc., it is more suitable for concrete pads  grinding metals and plastics, and other non-metallic leather and rubber coarse and fine grinding. At the same time, but also because it has a fast heat dissipation characteristics, so in grinding large number of heat-sensitive materials, thin-walled workpieces and dry grinding process medium with good results. Large pores and other general grinding vitrified basic method for producing the same. Difference is in the amount of the ingredients plus a pore agent, making the wheel completely evaporated before firing or burned, generating large pores.