| 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. |
