| 摘要 |
PURPOSE:To enable casting of a thin slab by arranging one side of a pair of top rolls at higher position than the other side, holding belts at intermediate part between the upper and lower top rolls and arranging at least one pair of rolls, by which the center part of cross section of the belt is bent as projecting shape, outwardly. CONSTITUTION:The position of the top roll 3 for adjusting tensile force of one side of belt 1, is made to high and deformed rolls 10, 11 are set between the above roll 3 and molten metal surface 8. The roll 10 is a saddle type roll recessed at the center part and the roll 11 is a drum type roll projected at the center part. The cross section of the belt 1 is bent outwardly in the range of the elasticity thereof by these rolls 10, 11. Wide pool 13 is formed between the belts 1, 1' and pouring nozzle 7 having the ordinary size can be inserted. Even if the gap L at the end parts of the belts 1, 1' corresponding to the thickness of the slab is thin, the molten metal can be poured. The belt 1 is returned to the flattening condition during passing through a cooling pad 5 by forcedly straightening with flat driving roll 2 and also the slab after solidification is made to the flattened slab having thickness L. |
