Raw materials and quality testing of silicon carbide abrasive sand

Silicon carbide is one of the most widely used ceramic materials, and its hardness and wear resistance are very high, so it is widely used in abrasive materials and other fields. The main raw material of silicon carbide abrasive sand is silicon carbide powder, the preparation method is: first choose the superior silica and graphite as raw materials, the mixture according to a certain proportion, put into the furnace for high temperature reaction, the silicon carbide powder. The prepared carbon fossil micropowder needs to be strictly screened and treated to obtain particles with stable quality within a certain size distribution range.In the manufacturing process, the quality of silicon carbide grinding sand is very important to detect. It mainly includes the following aspects:1. Particle distribution range: The particle distribution range of silicon carbide abrasive sand is tested by particle size analyzer and other instruments to ensure its quality and stability.2. Density: Through the density tester to detect the density of silicon carbide grinding sand.3. Toughness: The toughness of silicon carbide abrasive sand is tested by impact strength tester.4. Wear resistance: The wear resistance of silicon carbide abrasive sand is tested through the wear tester.