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本文介绍了利用超声振动能量制取超细金属粉末的超声雾化方法，提出了超声制粉雾化室，等离子枪，阴极、阳极喷咀及换能器振动系统的最佳尺寸和工作参数，给出了实验结果及制得的粉末显微结构照片．实验结果表明，用本文所述方法制得的金属粉末组成为：－80目粉占84呢，－120目粉占63．7啪，而用PREP方法制得的粉末分别占19．5％和11．7％，由此看来，用本方法制取超细金属粉，在粒度组成方面优于PREP方法．文中还对粉末冷却速度做了估算，得到了粉末平均冷却速度大于1×10_5k/5
In this paper, the ultrasonic atomization method of making ultrafine metal powder by using ultrasonic vibration energy is introduced. The optimal size and operating parameters of ultrasonic pulverizing chamber, plasma gun, cathode, anode nozzle and transducer vibration system are presented. The experimental results and photographs of the obtained powder microstructure are given. The experimental results show that the metal powder prepared by the method described herein has the following composition: 84 mesh of 80 mesh powder, 63.7 mesh of -120 mesh, and 19.5% of the powder prepared by PREP method respectively 11.7%. From this, the ultrafine metal powder prepared by this method is superior to the PREP method in terms of particle size composition. In this paper, the cooling rate of powder is also estimated, the average cooling rate of the powder is more than 1 × 10_5k / 5