Abrasives are tools for grinding, grinding and polishing. Most of the abrasives are artificial abrasives made of abrasives and binders, and are also natural abrasives that are directly processed from natural mineral rock. In addition to being widely used in machinery manufacturing and other metal processing industries, abrasive tools are also used in grain processing, paper industry, and non-metallic materials such as ceramics, glass, stone, plastic, rubber, and wood. In the course of using the abrasive tool, when the abrasive particles are blunt, the abrasive particles partially or completely fall off from the abrasive tool due to the part of the abrasive particles being broken or the bonding agent is broken, and the abrasive material on the working surface of the abrasive tool is constantly undergoing new cutting. Edge, or constantly exposed new sharp abrasive particles, so that grinding tools can maintain cutting performance in a certain period of time. This self-sharpening of the grinding tool is a prominent feature of the grinding tool compared with general tools.

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