Abstract：In order to produce high quality IF steels of different sedation time ladle of molten steel and slab full of oxygen and inclusions changes are analyzed and discussed. The results show that if the slab wT［O］ <20×10-6, should ensure ladle sedation time for more than 30 min; production practice shows that after the adoption process optimization after the package wT［O］< 23×10-6 pass rate reached 98%, the slab wT［O］<20×10-6 pass rate reached 98%.
2016, Vol. 26 
