由于检查筛网达不到磨料粒度分级精度的要求,长期来全国磨料粒度组成不统一,有的粗细相差竟到一至两个号,直接影响磨具质量的稳定和磨削效果。本工作通过选定检查磨粒磨粉粒度用的筛机和一套行业公认的标准筛,制定了检查方法,并利用了这套标准筛作了大量 Due to the inspection of the mesh up to the requirements of abrasive particle size classification accuracy, the long-term national abrasive particle size composition is not uniform, and some difference between the thickness of one to two numbers, a direct impact on the quality and stability of grinding and grinding effect. This work through the selected inspection abrasive grain size with a sieve machine and a set of industry recognized standard sieve, developed a test method, and the use of this standard sieve for a large number