Some kinds of grinders and technologies are developed by the analysis on the properties of several agents and investigation of volume experiments. The results of this research are as follows:By our new type jet mill,the particle size of superfine ammonium perchlorate pow-der can be smaller than 2μm. The particle size of the superfine HMX and red phosphorus particles can be smaller than 2μm by our LS series mills. Our LG series mills are especially suitable for preparing superfine RDX powder,and the particle...