Ultrasonic atomization preparation device and method for spherical metal powder

The invention discloses an ultrasonic atomization preparation device and method for spherical metal powder. The ultrasonic atomization preparation device for the spherical metal powder comprises an atomization chamber, metal bar materials arranged inside the atomization chamber, and a plasma arc generation system arranged above the metal bar materials, wherein the metal bar materials are installed on an ultrasonic vibration system, the ultrasonic vibration system is arranged on a rotary lifting mechanism, and a powder collection cylinder is arranged below the metal bar materials. The method comprises the following steps that (1) metal bars are installed; (2) the atomization chamber is vacuumized and then is filled with inert gas; (3) the metal bars are stricken through plasma arcs; (4) the rotary lifting mechanism rotates the metal bars; (5) the ultrasonic vibration system vibrates the metal bars; (6) the metal bars are atomized into metal liquid drops, and the metal liquid drops fly away from the metal bars