| 摘要 |
PURPOSE:To utilize effectively the remaining sensible heat of a thin sheet itself for the purpose of descaling, and to eliminate hot rolling for shortening a thin- sheet manufacturing line, by installing a descaling device at the next stage of a double-roll type thin-sheet continuous-casting machine and installing further a single-stand multipass rolling mill in combination with said device. CONSTITUTION:A molten metal is poured into the space between a pair of rolls 2a, 2b rotating mutually reversely, to continuously manufacture a thin sheet while cooling and solidifying it. The thin sheet is introduced to a descaling device 4 located at the next stage and is pickled while being passed through the device 4; at that time, the sheet is introduced at about 50-100 deg.C to the device 4 to effectively utilize its remaining sensible heat. Accordingly, the scales of sheet is surely removed without the need for heating the acid by the bath 4. Successively, the descaled and cooled thin sheet is continuously passed between mutual rolls of the plural rolling rolls of a single-stand multipass mill 6 having >=3 rolling rolls, to form the sheet into a prescribed thickness. |
