提高中厚板连铸坯内部质量的工艺优化研究

Research of Process Optimization for Improving Internal Quality of Continuous Cast Slab to Produce Medium and Heavy Plate

舞钢炼钢厂分别从电磁搅拌、轻压下、铸机精度、二冷水量、扇形段驱动辊压力、中间包清洁度、铸坯堆垛缓冷等环节进行工艺优化,改善了连铸坯内部质量,为提高钢板的内部质量创造了条件,使钢板探伤合格率得到显著提升。

With continuous casting process optimization on EMS,soft reduction,caster accuracy control,secondary cooling water flow,driving roll force of segment,tundish cleanliness,slab stack cooling in Wugang,the internal quality of continuous cast slab is improved,creating favorable conditions for enhancing plate internal quality,boosting significantly the ultrasonic flaw detection qualification rate of steel plate.