This paper specifies the technical innovation and technological optimization in some important working step units,which include flow field of tundish,mold and secondary cooling water distribution etc.

• 本文介绍了宣钢炼钢厂通过对连铸机中间包流场、结晶器、二冷配水等重要工序单元进行技术改造和工艺优化,提高了铸坯质量,为开发生产品种钢提供了保证。