INFLUENCE OF IMPULSE PROCESSING WITH HIGH-VOLTAGE ELECTRICAL DISCHARGES AND FLOTATION SEPARATION ON THE PHYSICAL-MECHANICAL AND MORPHOMETRIC CHARACTERISTICS OF AC20 MARK SYNTHETIC DIAMOND POWDER WITH GRANITY 100/80

Abstract

Studies of the powder of synthetic diamond grade AC20 with grain size 100/80 have experimentally shown that the use of high-voltage electric discharges in the manufacture of powders makes it possible to obtain powders that are more uniform in morphometric characteristics, powders with a large number of cutting edges and a large angle of their sharpening, which provides a higher abrasive ability . The use of flotation separation of diamond powder makes it possible to obtain diamond powder, which is characterized by an increased strength in static compression by 23.8%, increased uniformity in strength by 25.0%, and a significantly reduced number of inclusions. The results of the performed studies give grounds to assert that the use of powder treatment with high-voltage electric discharges and the use of flotation separation are effective technological methods for influencing the morphometric, physical and mechanical characteristics and technological properties of synthetic diamond powders. The use of these two methods opens up the possibility of selectively influencing the quality of the resulting powders.