| 摘要 |
PURPOSE:To prevent the development of bulky chilling point and to obtain a high quality product without any uneven thickness and cracking by arranging a heater toward longitudinal direction of cooling rolls at upper part of kissing point, where solidified shell formed on each surface of two cooling rolls is brought into contact with the other shell. CONSTITUTION:Pouring basin 3 is formed with two cooling rolls 1 and side weirs 2 arranged as abutting on both end faces of the cooling rolls 1 and a core 4 is arranged in the pouring basin 3. The heater 10 for heating the molten steel 5 is arranged toward longitudinal direction of the cooling rolls 1 at the position easily developing the bulky chilling point 9 at upper part of the kissing point 8, where the solidified shell 7 formed on each surface of the cooling roll 1 is mutually brought into contact with the other shell 7 and arranged in the core 4. By this method, in the case of casting thick plate, too, by heating the molten steel 5 with the heater 10 and holding the temp. of the molten steel 5, the development of the bulky chilling point 9 is prevented. |
