METHOD FOR METAL CONTINUOUS CASTING Russian patent published in 1996 - IPC

FIELD: metallurgy. SUBSTANCE: method for metal continuous casting consists in that metal is transferred to mold, and ingot is drawn from it with variable speed, supported and directed along the process axis of the metal continuous casting plant with the help of rollers mounted on bearing supports. Ingot surface is cooled by means of coolant sprayed by jets and conditions of rollers and their supports are determined with the help of special devices. In the course of continuous casting, ingot is drawn at working speed Vp and conditions of rollers and their supports are determined. Should their serviceability be disturbed within the section of the length of process axis under conditions of l_min ≅ τv_p ≅ l_max, the speed of drawing is changed to values v_min ≅ (0,92÷0,98)•l_min/τ or v_max ≥ (1,1÷1,2)l_max/τ, where Vp is value of the working speed of ingot drawing, m/min; v_min and v_max are distances from metal meniscus in mold, respectively, to the first and the last rollers of section of process axis of metal continuous casting plant with failed rollers and their supports, m; τ is the time of full solidification of ingot, min; (0.92-0.98) and (1.1-1.2) are empirical coefficients taking into account the laws of solidification of continuous casting dimensionless ingots. EFFECT: higher efficiency.