| 摘要 |
PURPOSE:To cast a thick ingot at a high speed by immersing cooling bodies into a molten metal to form plural solidified layers and drawing the solidified layers to the outside of the molten metal while press-welding the solidified layers, thereby surely press-welding and laminating the solidified layers with uniform quality. CONSTITUTION:The molten metal 2 which is poured into a vessel 10 to the extent of submerging cooling rollers 11 of the upper step of a continuous casting machine 1 is cooled to form the solidified layers 3 by contacting with the outside peripheral surfaces of the respective rollers 11. The solidified layers are press- welded and laminated by the rollers 11 and pulling up rollers 12 which are respectively paired, by which the solidified layers are cast to the thick ingot 4. The rotating speeds of the rollers 11 and the rollers 12 are synchronously controlled to meet the growing speed of the solidified layers 3 and to prevent the generation of excessive tension and compressive force in each part of the ingot. |
