METHOD OF CONTINUOUS CASTING OF METAL Russian patent published in 1995 - IPC

FIELD: metallurgy. SUBSTANCE: metal is fed to the crystallizer, ingot is drawn out of the crystallizer, slag mixture is supplied to the metal meniscus in the crystallizer, the reciprocal motion is given to the crystallizer, the crystallizer walls are cooled with running water and are supported. The ingot in the zone of secondary cooling is directed with the aid of cut rollers with intermediate supports. The ingot surface is cooled with a cooling agent sprayed by pulverizers. The speed of the ingot extension is regulated. The roller shifting is measured relative to the technological axle. In the process of continuous casting the shifting of the intermediate support is determined. The speed of the ingot extension is decreased by 5 - 20% of the operating value as soon as this shifting is exceeded up to the value of 0.0005 - 0.006 of the ingot thickness. The speed of extension is increased up to the operating value at the consequent decrease of this shifting up to the value of 0.0001 - 0.002 of the ingot thickness. The shifting of the intermediate support is measured at the distance from the lower face of the crystallizer which is equal to 0.5 - 5.0 of the ingot thickness. EFFECT: enhanced quality of continuously cast ingots. 1 tbl