| 摘要 |
FIELD: processes for hot rolling of thin strips in mills including rough reversing rolling stand and finish rolling group with furnace coilers. SUBSTANCE: method comprises steps of reversibly rolling slab in rough rolling stand and simultaneously reversibly rolling (in finish rolling stand group) strip made of previous slab; at least in one odd rough pass (except last odd pass) passing strip without coiling through predetermined coiling apparatus; at last rough pass coiling strip to intermediate coil in coiling apparatus and further uncoiling strip for guiding it to finish rolling stand group; terminating cycle of finish rolling of previous strip simultaneously at guiding next strip to finish rolling stand group. Mill is provided with coiling apparatus mounted in such a way that spacing between said apparatus and rough rolling stand is no more than length of rolled piece in last but one odd rough pass; spacing between rough rolling stand and first stand of finish rolling stand group depends upon length of strip in last but one odd rough rolling pass and it is normalized with use of mathematical expression. EFFECT: enhanced efficiency of rolling mill, improved quality of strip due to favorable temperature parameters of rolled piece and reduced length of manufacturing line of rolling mill. 2 cl, 5 dwg, 2 tbl |
