Abstract: A method of cooling a rod delivered successively from a hot rolling mill while transferring it. The method involves coiling the rod into rings, forming the rings into a densely packed coil in which the centers of the rings are slightly offse, conveying the densely packed coil through an enclosed space, and progressively cooling the coil while keeping the temperature differences within the cross-section of the coil perpendicular to the length thereof at a minimum. This is done by adjusting the gaseous heat transfer medium within the enclosed space to keep the temperature of the external surface of said cross-section of the coil substantially uniform, during the course of conveying the coil, and vertically dropping the rings of the coil at least once for accelerating the release of heat from the core portions of the densely packed part of the coil along each edge of the coil.

Abstract: An apparatus for cooling a rod delivered successively from a hot rolling mill while transferring it. The apparatus has a laying reel for forming the rod into successive rings, and a conveyor having a coil receiving portion for receiving the rings and forming them into a densely packed coil having a plurality of overlapped rings with the centers of the rings offset in a transferring direction. The conveyor has at least one step for loosening the coil when it is conveyed over the step. An enclosure is provided for enclosing. The sections of the conveyor between which the step is located. The enclosure has stirring devices for keeping the gaseous heat transfer medium within the enclosure at substantially uniform temperatures, which progressively decrease in the direction of movement of the conveyor. A plurality of coolant nozzles are provided at the step for blowing coolant on to the back of the vertically dropping rings.