METHOD FOR CONTINUOUS CASTING OF RECTANGULAR INGOTS Russian patent published in 1997 - IPC

FIELD: metallurgy. SUBSTANCE: method involves supplying metal to crystallizer; cooling wide and narrow walls of crystallizer with water running through channels; moving narrow walls relative to wide walls; changing width of ingot under molding process and varying cooling water flow rate; changing direction of cooling water flow in channels from their outer portions to mid portion; withdrawing ingot from crystallizer. Displacement of narrow walls changes cooling water flow rate for value equal to ΔQ=±K•ΔB, where ΔQ is value of changing flow rate of water used for cooling of crystallizer, cub m per hour; ΔB is total value of displacement of narrow walls equal to 0.2-1.6 of ingot thickness, mm; K is empirical coefficient of 0.1-0.3 cub m/mm/hour, with heat elimination from ingot enclosure of different width being taken into account. EFFECT: increased efficiency, simplified method and improved quality of ingots. 1 tbl