FIELD: rolled stock production, possibly manufacture of heat hardened rolled rods, namely reinforcing rods in small- and mean-bar rolling mills.
SUBSTANCE: method comprises steps of heating blank, rolling it in rolling mill, cooling the whole rolled piece at outlet of last finish stand in accelerated cooling line; tempering in air. According to invention at rolling process in one of inter-stand intervals of finish rolling group additionally cooling tail portion of rolled piece; beginning cooling at time moment when length of rolled piece in selected inter-stand interval is equal to value normalized by means of mathematic relation.
EFFECT: enhanced uniformity of distributing physical and mechanical properties of metal along length of rolled piece.
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Authors
Dates
2005-06-20—Published
2004-04-27—Filed