| 摘要 |
FIELD: processes for rolling sheets in one-stand reversing rolling mills. ^ SUBSTANCE: method comprises steps of heating slabs till rolling temperature; rough rolling of slabs and finish rolling of rolled pieces in the same reversing rolling stand by packs of two or more pieces. In order to improve efficiency of rolling mill and to save surface areas, slabs are subjected to rough rolling to rolled pieces with thickness multiple to 3 - 5 thickness values of ready sheet. Cooling of each rolled piece is combined with rough rolling of next slabs and with finish rolling of previous rolled pieces. Relation of cooling time period of each rolled piece to time period of finish or rough rolling of rolled piece is normalized. Rolling mill includes heating unit, working reversing stand, working roller tables, unwinding roller tables and transporting roller tables consisting of sections, unit for cooling rolled pieces, system for controlling operation of roller tables made with possibility of moving sections of transporting and unwinding roller tables at each side of working stand in main line of mill into unit for cooling rolled pieces while combining functions of transporting and cooling. Quantity of sections before stand is equal to number of sections behind stand. ^ EFFECT: enhanced efficiency of rolling mill, lowered quantity of surface area for mounting production equipment. ^ 2 cl, 1 dwg |
