在连铸机的二次冷却区内钢水的静压作用于铸坯的结晶凝固壳,这能引起凝固壳的凸起(图1),并导致连铸坯内部缺陷的形成(图2)。这时作用在二次冷却区辊子的负荷大大增加。在停止铸坯运运和在凸起状态完全结晶的情况下,断辊、轴承和其它零件破坏是不可避免的。为了取出这种铸坯,必须拆除连铸机。 The static pressure of the molten steel in the secondary cooling zone of the caster acts on the crystallized solidified shell of the slab, which causes the bulge of the solidified shell (Figure 1) and leads to the formation of internal defects in the slab (Figure 2). At this time the role of the roller in the secondary cooling zone load greatly increased. Broken rolls, bearings and other parts are inevitable in the event of stopping the billet and completely crystallizing in the raised state. In order to remove this slab, the caster must be removed.