Abstract：The replacement of submerged nozzle during casting process has a great effect on slab quality. The influence of different fast nozzle replacement operations on defect numbers in slab was investigated at Qian’an iron and steel limited company. Through controlling the surperheat of molten steel in tundish, closing stopper time, the liquid level height in mold and time of manual control flow, the standardized operation of submerged nozzle replacement was proposed. The results were obvious for slab quality improvement.
朱明伟. 快换水口过程板坯质量的改进措施[J]. 中国钢铁期刊网, 2014, 33(4): 43-46.
ZHU Ming-wei. Improvement of Slab Quality During Fast Nozzle Replacement. Chinese Journal of Iron and Steel, 2014, 33(4): 43-46.
2014, Vol. 33 
