resolution grinding disc material roughing and finishing

Crystal film polishing step is to cut a good crystal film in a step for further processing, are prepared guarantee crystal film quality of the main link. This step in the processing of crystal pieces in the process, for different crystals, sometimes using coarse and fine grinding two file belt  processes. Why do as promised? This is because, grinding crystal films, the number of revolutions grinders, pressure and particle size abrasive material selection of the size of the grinding result is a direct relationship.
The size of the abrasive particle velocity and grinding disc (under the condition of the pressure necessary) proportional to the inverse grinding quality. This means that the degree of abrasive particles, grinding the crystal film on the fast speed, it is to layer rate. But because the degree of abrasive particles will form a consistent appearance of the Bonded abrasives  crystal particle size of sheet size of a mechanical damage layer of coarse crystal film appearance quality. Instead, we choose the small particle size of the abrasive, surface quality crystal film is obtained because of improved small particle size. However, the amount of grinding crystal film will drop, to the low level.
To get a good slice of the crystal quality of the film, but also progress in production efficiency, it is necessary to choose the appropriate abrasive, reasonable grinding. As promised, took place two coarse and fine grinding process concept. Coarse grinding process, select a reasonable, larger particles of abrasive, grinding progress to the  metal cutting wheel speed of the crystal piece, adding to the layer rate is the primary goal. Grinding process, the rational choice of smaller particles of abrasive, progressive improvement in the appearance of the crystal piece, do prepare for the polishing process, the primary objective of this process. 3M abrasive coarse and fine grinding on both devices to isolate the operation is complete, to prevent abrasive infect each other, which is to be strictly enforced.