| 摘要 |
PURPOSE:To operate a continuous casting machine without stopping and to reduce wastes of cast billets by cutting the cast billet at the upstream side of a rolling mill at the time of stopping of machines containing the rolling mill at the downstream side of a continuous casting machine, winding all of the cast billet in casting, and rewinding, supplying, and rolling the cast billet after restart of an operation. CONSTITUTION:When the malfunction of machines containing a rolling mill 39 at the downstream side of a tilting-type twin-belt continuous casting machine is caused and some replacement is required, the cast billet 40 is cut by a shearing machine installed at the just back of the casting machine. Then, the cast billet 40 being after the shearing machine is fed to the mill 39 and the casting machine is operated without stopping after cutting and the produced billet 40 is wound on a winder. After winding the billet 40 by a prescribed length, the wound billet 40 is cut by the shearing machine at the just back of the casting machine. The wound coil is rapidly moved into a thermally isolated furnace. During that time, casting is continued and the succeeding billet 40 is again wound on the winder. Such an operation is continued and the casting machine is stopped after all of molten metal in the casting machine is cast. After recovery from malfunction of the rolling mill or other some machine, the coil is delivered from the furnace, is rewound by a rewinder, and is rolled. |
