Method for preparing large-granularity spherical tungsten powder by adopting radio frequency plasma method

The invention provides a method for preparing large-particle-size spherical tungsten powder by adopting a radio frequency plasma method, which comprises the following steps: firstly preparing a tungsten powder compact, then crushing the tungsten powder compact to obtain tungsten powder particles, then sieving the tungsten powder particles to obtain large-particle precursor particles, and finally carrying out radio frequency plasma spheroidizing treatment on the large-particle precursor particles to obtain the large-particle-size spherical tungsten powder. The large-particle-size spherical tungsten powder with the particle size of 50-100 microns is finally obtained, the tungsten powder is uniform in particle, high in sphericity degree and good in fluidity, and the obtained large-particle-size spherical tungsten powder product can be used in the fields of 3D printing, thermal spraying, preparation of porous tungsten materials and the like. 本发明提供采用射频等离子法制备大粒度球形钨粉的方法，首先制备钨粉压坯，然后将钨粉压坯进行破碎处理，得到钨粉颗粒，再把钨粉颗粒进行过筛，得到大颗粒