用绝热板代替砖砌保温帽,在钢锭模内浇注镇静钢,有提高炉后能力,增加镇静钢比,改善工人劳动条件,简化整模浇注工艺,节约能源,较多的提高成材率(3—5％)等一系列明显的优点。 使用绝热板,钢锭头部缩孔形状从锥形变成浅碟形,切头率大幅度下降。这是因为绝热板具有比保温帽高的保温性能,使钢锭头部钢水凝固慢造成的。 Insulation board instead of brick with thermal insulation cap, cast steel in the ingot die-casting steel, have to improve the furnace capacity, increase the ratio of calm steel, improve working conditions of workers, to simplify the whole mold casting process, save energy, more improve the finished product rate (3 -5%) and a series of obvious advantages. The use of insulation panels, ingot head shrinkage from the tapered shape into shallow dish shape, sharp drop in head rate. This is because the insulation board has a higher insulation performance than the insulation cap, so that the head of the molten steel slow solidification caused.