METHOD FOR ROLLING HEAT HARDENED REINFORCING RODS Russian patent published in 2005 - IPC

Abstract RU 2254179 C1

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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RU 2 254 179 C1

Authors

Loginov A.V.

Tulupov O.N.

Seleznev I.V.

Gasilin A.V.

Zimina L.A.

Shirjaev O.P.

Dates

2005-06-20Published

2004-04-27Filed