PROCESS OF CONTINUOUS METAL CASTING Russian patent published in 1994 - IPC

FIELD: metallurgy. SUBSTANCE: process of continuous metal casting includes feeding of metal into crystallizer, extraction of ingot from it with variable velocity, feeding of slag mixture to metal meniscus in crystallizer, control over its flow rate, support and guidance of ingot with the use of rollers, cooling of surface of ingot with coolant sprayed with nozzles, measurement of temperature of surface of ingot and removal of scale from surface of ingot. In process of continuous casting scale is removed periodically in 0.5-10.0 min and temperature of surface of ingot with scale and after its removal is measured, obtained values of temperatures are compared and if they deviate from optimum value of temperature difference within limits of 40-60 C flow rate of slag mixture is changed by 2-4% from working value per each 4-6 C of deviation from specified temperature difference from optimum magnitude. With increase of difference above 40-60 C flow rate of slag mixture is reduced and with decrease of difference below 40-60 C it is enhanced. EFFECT: improved quality of ingots cast continuously. 1 tbl