JPS55133803A - Continuous rolling apparatus - Google Patents

Abstract

PURPOSE:To contrive the remarkable energy saving, by constituting the rolling apparatus so as to coil the continuously cast billet under the state still holding the sensible heat of casting, and so as to feed this coil without cooling into the hot rolling pass. CONSTITUTION:The cast billet 3, being cast by the continuous casting die constituted of endless belts 6, 8, and a pair of side links 7, is passed through belts 12, 12', the insulating soaking zone 14, the horizontal mill 15, the edging mill 16, the horizontal mill 17, etc.; hereby, the thickness and breadth of the billet 3 are regulated to desired thickness; after that, the billet 3 is bent by the bending roller 19, and is coiled into the coiler 20 under the state still holding the sensible heat of casting, and then is cut by the cutter 18; thus formed coil 21 is transferred into the insulating soaking pit 22. While the coil 21 is temporarily held in this soaking pit 22 for adjsuting the production schedule between passes, temperatures of the coil 21 are uniformalized, and the coil 21 is fed through the uncoiler 23 to the hot rolling pass to be carried out by the roughing mill 25, etc. Since this method does not cut the billet into many pieces like as the conventional method, the temperature drop of the coil is prevented so that the energy consumption can be remarkably saved.