Grinding wheel particle size and its selection

It refers to the size of abrasive particles. The particle size is divided into two categories: abrasive particles and micro powders. For particle sizes greater than 40 μ The abrasive of m is called abrasive particles. Using the screening method for classification, the particle size is represented by the number of holes per inch of length on the sieve through which the abrasive particles pass. A 60 # abrasive particle indicates that its size is just enough to pass through a sieve with 60 holes per inch of length. For particle sizes less than 40 μ The abrasive of m is called micro powder. Using microscopic measurement method for grading, use W and the number after it to represent the particle size number, and the value after W represents the actual size of the micro powder. As W20 represents, the actual size of the micro powder is 20 μ M.