本文介绍了电 -磁 -机械 (EMM )磨机的高强度粉磨效果。在EMM磨机中由于几种力同时作用使粉体以非常特殊和强烈的方式被处理。磨机工作腔中心的粉磨能量大约在 2MW/m3水平 ,比常规磨机要高出许多。而且粉磨时间非常短 ,也就是几十秒钟。平均粒径为 15 5 μm的自碎散Fe Al Si粉体经 12 0s粉磨后粒径降至 8μm ,产率为 2 5 %物料粒径小于 1 3 μm。特别硬的物料 (如SiC和B4 C)在EMM磨机中磨 12 0s后 ,其粒径降为原来的 1/3 0。Fe2 O3粉体的粉磨结果更佳。用球磨机、振动磨机、行星磨机获得类似粒度所需要的粉磨时间要长百倍。用EMM磨机粉磨获得的Fe Al Si粉体适用于粉末冶金烧结、等离子喷涂或激光表面合金化等加工过程 This article describes the high-intensity grinding effect of electromechanical-mechanical (EMM) mills. In the EMM mill due to several forces at the same time make the powder in a very special and intense way to be processed. Grinding mill work center of the grinding energy about 2MW / m3 level, much higher than the conventional mill. And grinding time is very short, that is, dozens of seconds. The average particle size of 15 5 μm self-broken Fe Al Si powder after 12 0s grinding down to 8μm particle size, the yield was 25% of the material particle size of less than 13μm. Particularly hard materials, such as SiC and B4C, have their particle size reduced to 1/3 0 after 120 s in an EMM mill. Fe2 O3 powder grinding results better. With a ball mill, vibration mill, planetary mill to obtain a similar particle size grinding time required for a hundred times longer. The Fe-Al-Si powder obtained by EMM mill grinding is suitable for processing such as powder metallurgy sintering, plasma spraying or laser surface alloying