| 摘要 |
PURPOSE:To prevent the development of excess shell and the deterioration of characteristic at side end parts of cast strip by arranging endless belts, which are faced at the narrowest position of the roll interval and movable to vertical direction, at the lower part of wall body crossing at the right angle with the roll axial center for molten steel receiver. CONSTITUTION:The molten steel receiver 4 composing of long and short side weirs 2, 3 on one pair of the rolls 1A, 1B arranged as mutually parallel is arranged. The molten steel is supplied in this molten steel receiver 4 and the cast strip is continuously drawn from gap between the above mold rolls 1A, 1B. In the above twin roll type strip continuous casting apparatus 1, the endless belt 5 facing at the narrowest position of the roll interval is arranged at the lower part of the wall body of the short side weir 3 for the molten steel receiver 4 arranged at the roll end face position crossing at the right angle with the axial center of the rolls. This belt 5 is wound on the upper and lower side rollers 7, 8 as movable and the surface thereof at the roll side is constituted as the same face with the inner wall face 3a of the above wall body 3. By this method, the short side shell on the circumferential surface of the roll is shifted together with the endless belt 5 and excess shell does not form and the development of the crack in the long side shell is prevented. |
