FIELD: process engineering.
SUBSTANCE: proposed method comprises forming ingot surface layer formation in crystalliser, withdrawing ingot from crystalliser, shaping ingot into coil, separating billet from ingot and rolling straightened billet. Continuously cast ingot shaped into coil is fed into heat insulating device at CCM teeming speed. Billet is separated from ingot to be thermostated at temperature approximating to metal crystallisation temperature, and transferred to and fed into rolling mill. Ingot is fed into heat insulating device along screw trajectory simultaneously with discharging ingot from CCM. Then, billet is separated from ingot and transferred in heat insulating device toward rolling mill. Billet is made oscillating with specified amplitude. Note here that billet is transferred from heat insulating device into mill along screw trajectory at speed equal to that of rolling in mill first stand.
EFFECT: shorter rolling cycle, reduced heat losses in continuous casting and rolling.
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Authors
Dates
2011-08-27—Published
2008-11-17—Filed