According to the hardness classification, there are two categories of super hard abrasives and ordinary abrasives. The general grade can be divided into corundum, silicon carbide, diamond, corundum generally used in general abrasive manufacturing and sand blasting, belonging to general abrasives, but there are many high-grade corundum abrasives, such as zirconium corundum or single crystal corundum, etc., the dosage is much smaller than the general The corundum abrasive, commonly used is "black and white brown corundum", especially in the manufacture of abrasive tools and sandblasting requirements for hardness is strict, please consult me if you have any questions. |