| 摘要 |
PURPOSE:To prevent the decrease in the temp. of ingots and to make production of plural steel strips from one ingot possible by connecting a continuous casting machine and roughing mills with a conveying table having an auxiliary heater, and changing width and thickness to desired sizes during passing through with a hydraulic pressing-down device, etc. CONSTITUTION:A continuous casting machine 1 and a roughing mill train 7 are connected with a conveying table 13 having an auxiliary heater 6. After the continuously cast ingot is heated to a prescribed rough rolling temp., the ingot is roughly rolled to an intermediate thickness bar of the same width over the entire length or to an intermediate thickness bar of different width sizes by changing the broadside rolling reduction during the course of the rolling by the train 7. When the intermediate thickness bar is lower than the prescribed temp., the bar is heated to a prescribed temp. with an edge heater 8, and the bar is finish rolled to strips of the same thickness with a finishing mill train 10 or to steel strips of different thicknesses by changing the thickness rolling reduction during the course of the finish rolling. The steel strips are cut to required lengths with a cutter 11 before coilers 2, 2' and are taken up on the coilers 2, 2. |
