Run cast online hot rolling equipment and its rolling manner

摘要

PURPOSE: To enable low speed rolling to be carried out while suppressing the temp. drop of a rolled stock and the generation of scale and to realize true mini hot-rolling by rolling a slab whose thickness is thiner than a specified value with equipment in which a continuous casting machine and a hot rolling mill are directely connected. ;CONSTITUTION: By executing the temp. rising and scale removal of the slab 2 of ≤80mm thick which is cast with the continuous casting machine 1, rough rolling to 20-60mm thick with a roughihg mill 7 of a 4-high twin mill, further temp. rising and scale removal, finish rolling with finishing mills 19-21 provided with small diameter work rolls of ≤500mm diameter, a sheet of about 1.6-15mm thick or athick plate of about 3-40 mm thick is made. And, by taking the rolling speed on the outlet side of the finishing mills 19-21 as a low speed of ≤350 m/min, the scal of production is made smaller and, by making the length of equipment as ≤100m, the installed capacitor is reduced.;COPYRIGHT: (C)1995,JPO