effect of jet striking narrow face(For narrow mold, once inclusions enter the lower flow zone created by the effect of the jet striking the narrow face, it is unlikely that they would rise by buoyancy to the free surface. 对于窄结晶器而言,只要夹杂物一进人由于流股撞击结晶器窄面效应而形成的向下流动区,它就不可能依靠浮力再上升到钢水自由面。)