GB438421A - Improvements in and relating to the chilling of steel rod - Google Patents

Abstract

438,421. Rolling. LLOYD, H. D., The Old Vicarage, Stretton, near Warrington. March 13, 1934, No. 7968. [Classes 83 (ii) and 83 (iv)] [See also Group II] Medium or low carbon steel rod is chilled by feeding the rod in a hot condition from a rolling mill to a coiling device, e.g. a perforated drum, to the centre of which water is fed and caused to flow outwards radially while it is being coiled. The rod 2 from the rolling mill is passed through a tube c mounted on a rotating coiling frame b and is coiled round a fixed perforated drum d suspended by a ball bearing from the frame. A squared projection e on the lower end of the drum d fits into a square opening on a plate f which is supported by a pipe h pivotally mounted on the tank a containing the quenching liquid and counterbalanced by a suitable weight q suspended from a chain connected to a lever r. The pipe h is connected by a pipe to a centrifugal pump k which draws water from the tank through an opening n and a pipe o, water then being forced inside the coiling drum d and radially outwards through the perforations in the drum. When the rod has been cooled on the drum d the pipe h and the plate fare swung downwards and the coil slides down the bars s until arrested by abutments 5, the plate f &c. returning to the horizontal position. The coils are removed from the abutments 5 by arms y on an endless conveyer t and conveyed out of the liquid in the tank a.