采用钢或其他熔融金属的卸流除气法时,不需在炉内造成真空。只是在普通的熔炉出钢时,钢液从炉内流入浇注漏斗并进入真空室进行除气,此时,所采用的真空容器带有密闭的盖。为了进一步减少卸流除气时的热损,浇注漏斗的容积小一些为佳。钢液从浇注漏斗流出的压力可用注孔和塞棒调 When using steel or other molten metal de-flow method, there is no need to create a vacuum in the furnace. Only in the ordinary furnace tapping, the molten steel flows from the furnace into the pouring funnel and into the vacuum chamber for degassing, in which case the vacuum vessel used has a closed cap. In order to further reduce the heat loss at the time of dumping and degassing, the volume of the pouring funnel is smaller. The pressure of the molten steel flowing out of the pouring funnel can be adjusted with the filling hole and the stopper rod