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本文介绍了一种新型的刚玉涂覆的超硬磨料。其特征是：刚玉颗粒凸凹不平，呈“刺状”，与金刚石、立方氮化硼（ＣＢＮ）牢固结合，在树脂基砂轮中能够提高超硬磨料与基体的把持力，防止磨粒的早期脱落。实验结果表明，采用刚玉涂覆的超硬磨料制造磨具，可提高磨具的磨削效率，并延长磨具的使用寿命。
This article describes a new type of corundum-coated superabrasive. The utility model is characterized in that the corundum particles are irregular in shape and are in the shape of “thorns” and are firmly combined with the diamond and cubic boron nitride (CBN). The resin-based grinding wheel can improve the holding force of the super abrasive and the substrate and prevent the abrasive particles from falling off earlier . The experimental results show that the use of corundum-coated superhard abrasive abrasive, grinding can improve the grinding efficiency, and extend the service life of abrasive.