大方坯连铸动态轻压下控制模型的开发与应用

来源期刊：钢铁2009年第9期

论文作者：祭程 朱苗勇 陈永 吴国荣 杨素波

文章页码：20 - 23

关键词：大方坯连铸； 动态轻压下； 控制模型

Key words：bloom continuous casting； dynamic soft reduction； control model

摘    要：动态轻压下控制模型的开发与应用是实现轻压下参数有效、稳定实施的关键环节。结合攀钢2号大方坯连铸机设备特点,研究开发了大方坯动态轻压下控制模型,阐述了轻压下实施过程中各拉矫机压下辊设定值的计算方法。模型投用后铸坯内部质量得到显著改善,铸坯中心疏松≤0.5级综合比例和中心偏析≤0.5级综合比例分别提高35.46%和9.81%。

Abstract: The development and application of dynamic soft reduction model is the key link which realized the stable and effective application of soft reduction parameters.A bloom dynamic soft reduction control model was studied which combined with Panzhihua steel No.2 bloom continuous casting machine equipment characteristics,and the gap values calculation method for the press rolls of withdrawal and straightening machines during the process of soft reduction were described.The model application results showed that the blooms inner quality had been improved obviously,and the comprehensive percentages of blooms central segregation defects class ≤0.5 and central looseness defects class ≤0.5 respectively increased by 35.46% and 9.81%.