FIELD: crystal growing. SUBSTANCE: problem is (i) impossibility of accurately controlling process of hardening or crystal formation within specified periods of time, and (ii) processes themselves, in what concerns their quantitative relations, proceed not actively enough. According to invention, ultrasonic action is applied on overcooled melt or supersaturated solution before transferring them onto conveyor belt of conveyor installation or when melt is brought into contact with receiving drum or conveyor belt. EFFECT: enabled crystallization and hardening of various melts being processed or solutions while accurately observing time and quantitative requirements. 7 cl, 9 dwg
