Impact analysis of casting parameters on surface sliver defects for ultra-low carbon steel
LUO Yan-zhao1，LIU Bai-song1，YUAN Peng1，GAO Pan1，NI You-jin2，PEI Xing-wei2
1. Shougang Research Institute of Technology， Shougang Group Corporation， Beijing 100041， China 2. Hebei Shougang Qian’an Iron and Steel Co.， Ltd.， Qian’an 064404， Hebei， China
Abstract：Surface sliver defects for ultra-low carbon steel was analyzed from the perspective of continuous casting parameters including casting speed， nozzle immersion depth， immersion nozzle outlet angle， property of mold flux. The results show that as the casting speed reduced from 1.2 m/min to 1.1 m/min， the immersion depth of nozzle increased from 130 mm to 145 mm， and the nozzle outlet angle increased from 15° to 18°， the level fluctuation of the casting process and the surface quality of ultra-low carbon steel improved greatly. As the viscosity ofthemold flux for ultra-low carbon steel increased from 0.306 Pa·s to 0.364 Pa·s， and the melting point reduced from 1 089 ℃ to 1 062 ℃， the sliver defects rate decreased from 8.86% to 4.49%.
收稿日期: 2016-05-19
出版日期: 2016-11-17
引用本文:
罗衍昭，刘柏松，苑 鹏，高 攀，倪有金，裴兴伟. 连铸工艺对超低碳钢表面线状缺陷的影响分析[J]. 中国钢铁期刊网, 2016, 35(5): 62-66.
LUO Yan-zhao，LIU Bai-song，YUAN Peng，GAO Pan，NI You-jin，PEI Xing-wei. Impact analysis of casting parameters on surface sliver defects for ultra-low carbon steel. Chinese Journal of Iron and Steel, 2016, 35(5): 62-66.
2016, Vol. 35 
