PRODUCTION OF SUSPENSIONS OF METAL AND METAL COMPOUNDS SUPERFINE PARTICLES AND DEVICE TO THIS END

摘要

FIELD: metallurgy.SUBSTANCE: powder composed of aggregates of nano-sized particles is subjected to ultrasound dispersion and mechanically mixed at the rate of 250-1000 rpm. Mechanical mixing and ultrasound dispersion are carried out successively at displacement of suspension in closed hydraulic circuit at the rate of 0.06-0.15 m/s. Proposed device comprises high-speed mixer arranged in the case composed of round-bottom tank, ultrasound continuous flow chamber and means to force suspension in closed hydraulic circuit. Said mixer and said chamber are communicated via pipelines.EFFECT: stable sedimentation suspension containing high-dispersion particles.13 cl, 3 dwg, 3 ex