一、前言几年来,鞍钢普遍采用了绝热板代替保温帽浇铸镇静钢工艺。经过多年的生产实践,证明采用此项工艺是减少钢锭切头,提高成坯率的有效措施之一。因此,鞍钢于1984年经过反复试验,将原 Jb10.93t 模型用 Jc10.66t 模型代替,提高成坯率2.5％,取得了可喜的成果。上下大 Jc10.66t 模型是采用四板两 First, the foreword In recent years, Anshan Iron and Steel commonly used insulation instead of insulation cap casting process of steel casting. After many years of production practice, proved that the use of this technology is to reduce the ingot cut, improve the blank into one of the effective measures. Therefore, Ansteel in 1984 after repeated tests, the original model Jb10.93t Jc10.66t model instead, improve the green rate of 2.5%, and achieved gratifying results. Large Jc10.66t model is the use of four board two