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The large pores wheel grinding can not easily be blocked, high durability and cutting ability. Soft metal and plastic, rubber and leather and other non-metallic materials suitable for the coarse and fine grinding. The same time, it has the characteristics of rapid cooling, grinding heat-sensitive material, thin-walled workpieces and dry grinding process (for example, sharpening carbide cutting tools and machine tool guide, etc.) have a good effect. The large pores wheel and ceramic bonded grinding wheel manufacturing method is essentially the same. The different point is porogen plus a certain amount of growth in the ingredients, it is in the grinding wheel before sintering completely volatilized or burned embers, thereby generating large pores. Large pores wheel production range: abrasive generally opt for carbide and corundum, used black silicon carbide (C), green silicon carbide (GC) and white fused alumina (WA) and several high hardness abrasive resistance crisp and sharp, having a good thermal and electrical conductivity; abrasive particle size (~ 180 # 36 #); binding agent (ceramics binding agent); hardness (G ~ M levels); shape (flat-shaped, cup-shaped, bowl-shaped or dish shape, etc.); pore size (approximately 0.7 to 1.4 mm).