The types of abrasives used in the resin bond are: brown corundum (A), white corundum (WA), single crystal corundum (SA), microcrystalline corundum (MA), chrome corundum (PA), zirconium corundum (ZA), black corundum ( BA) and other corundum series abrasives; black silicon carbide (C), green silicon carbide (GC), cubic silicon nitride (SC), cubic boron carbide (BC) series abrasives; superabrasive artificial diamond (RVD, MBD, SCD , SMD, DMD, M-SD) and cubic boron nitride (CBN, M-CBN).
Abrasives for the manufacture of resin abrasive tools do not have high requirements on the content of magnetic substances, but have strict requirements on the surface quality of abrasive particles. Because graphite and dust are attached to the surface of the abrasive, it can reduce and weaken the bonding force between the resin and the abrasive grains, resulting in a decrease in the hardness and strength of the abrasive. In order to improve the bonding ability between the abrasive and the binder, and improve the strength, toughness, wear resistance, etc. of the abrasive, necessary additional treatment should be carried out on the abrasive.
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Source: Abrasives Institute
Post time: Feb-28-2023