| 摘要 |
PURPOSE:To obtain a cast billet having no defect by equipping with the refractory pouring plate having the flat lower part extending downwards between the upper part curved along a top roll and a pair of belts, and the pouring nozzle opening onto the curved face of the upper part thereof. CONSTITUTION:The molten metal from a tundish 6 is flowed out on to a refractory pouring plate 10 from its notch part 13 via a pouring nozzle 11 to form the continuous film flow 12 flowing to the flat part of the lower part with spreading in the width direction. The pouring plate running along a top roll 3' guides a molten metal flow by a piece of a plate, so no turbulent flow of molten metal is caused nor biting any bubble, etc., and an uniform solidified cell is formed and the casting difficult to generate a defect can be executed. Due to the pouring plate 10 being of one piece plate, the structure is easy to release the thermal stress and the thickness can be thinned, hence the gap C of both belts is reduced and a thin slab can be obtd. by continuous casting. |
