When the abrasive grinding disc tools is used to process different materials, there are different requirements, and because the materials are processed at different working positions, the effect of processing the materials on the abrasive disc is different. How to judge the grinding ability of the abrasive grinding disc? It is roughly divided into two measures of the grinding effect as an indicator.
1, stripping rate
The stripping rate is generally determined by cutting off the ground material. The stronger the abrasive grinding disc has a crushing effect on the material, the higher the stripping rate is. The smaller the amount of the sieve on the corresponding coarse screen, the more the slag, heart and powder are.
2, the powder rate
The determination and calculation method of the powder extraction rate is similar to the stripping rate. The difference is that the sieve surface needs to be sieved with a corresponding sieve, the sieve material b is powder, the sieve material a is other products, and the measured data. The content of the powder in the bit grinding, that is, the powder taking rate. If the product is high-grade flour, the sieve is made of a dense screen, and the screening time should be extended appropriately during the inspection. When measuring the powder extraction rate of each PE plastic mill in the same process, the inspection screening time should be consistent. In the milling process based on the production of high-grade powders, the powder extraction rate of the anterior core grinding is generally 30%-40%, and the powder extraction rate of the posterior core grinding will be lower than this value.