FIELD: processes for making round rolled pieces by combination of continuous casting and rolling.
SUBSTANCE: method comprises steps of continuous casting of bar blank to mold; changing blank position by bending it to horizontal one; forming loop of blank after continuous casting; dressing blank at outlet of loop forming station; leveling (after complete solidification of ingot) temperature along cross section of blank by induction method; one-pass rolling of blank after its continuous casting in two-roll vertical shaping grooved pass; further rolling of blank in two-roll grooved pass and final rolling to ready shape. According to invention bar blank is cast with cross section in the form of flat oval. Loop of blank is bent downward relative to axis of horizontal transporting and it is heat insulated. In shaping roll grooved pass blank is reduced to round shape. Such grooved pass may be used as guiding for planetary universal stand arranged behind it.
EFFECT: enhanced quality of surface and structure, improved accuracy of size and geometry of rolled product due to possibility for rolling piece in optimal thermal and mechanical conditions at stable position of piece.
4 cl, 1 ex
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Authors
Dates
2006-08-20—Published
2004-10-15—Filed