某中厚板坯连铸机在投入动态轻压下系统过程中,发现辊缝漂移、辊缝偏差等现象,经组织现场测试和机械受力分析计算,确定辊缝漂移来源于冷热态变化,辊缝偏差来源于浇钢过程中机架上下框架受力变化引起连接关键部件的弹性变形量变化,并采取针对性措施。 In a medium slab continuous casting machine, the phenomena of roll gap drift and roll gap deviation were found in the process of dynamic soft reduction. After field test and mechanical analysis, the roll gap drift was determined from the change of hot and cold , The deviation of the roll gap comes from the change of the elastic deformation of the key parts connected with the force changes of the upper and lower frames in the process of pouring steel and adopts the pertinent measures.