一 现在工业上一般所称的磨料磨具,主要是指一些硬度很高的电刚玉、碳化硅、碳化硼等人造磨料和用它们做成的各种砂轮、油石、砂布、砂纸、研磨膏等。磨料和磨具因为具有高硬度、锐利的锋刃、在切削过程中的自砺作用,以及其他一些物理化学上的特点,所以成为近代工业加工金属或 Nowadays, what is commonly referred to in the industry as abrasive abrasives mainly refers to artificial abrasives such as electrocorundum, silicon carbide, and boron carbide, which are highly rigid, and abrasive wheels, oilstones, emery cloths, sandpapers, abrasive pastes, etc. made of them. . Abrasives and abrasive tools have become modern industrial processing metals because of their high hardness, sharp edges, self-straining during cutting, and other physicochemical characteristics.