物料的细磨通常是在低频作用的磨碎机(球磨机、棒磨机、环磨机、离心冲击研磨机等等)中进行。这些机器,很难在小微粒中造成极限破坏应力的条件,因为在工作机械对微粒两次连续作用之间,分子力力图结合,在微粒变形体中形成微观裂纹。因此,用低频作用的磨碎机制取极细散的粉末需要有相当长的磨碎时间和很高的动力消耗。 Fine grinding of the material is usually carried out in a low-frequency mill (ball mill, rod mill, ring mill, centrifugal impact mill, etc.). These machines make it very difficult to create the ultimate destructive stress conditions in small particles because the molecular forces attempt to combine to form micro-cracks in the deformed particles in the working machine. Therefore, the use of low-frequency grinding machine to produce very fine powder requires a long grinding time and high power consumption.