结晶器喂钢带技术在宽厚板连铸机的研究与应用  

RESEARCH AND APPLICATION OF MOLD STEEL STRIP FEEDING TECHNOLOGY IN WIDE AND THICK PLATE CASTER

作　　者：高山 段朋朋 王忠刚 Gao Shan;Duan Pengpeng;Wang Zhonggang(Steel making plant of Laiwu branch of Shandong Iron and Steel Co.,Ltd.Jinan 271104,China)

机构地区：[1]山东钢铁股份有限公司莱芜分公司炼钢厂,济南271104

出　　处：《冶金信息导刊》2023年第1期19-21,52,共4页Metallurgical Information Review

摘　　要：连铸坯洁净化和均质化是连铸技术发展的主要方向,但是铸坯中心偏析和中心疏松等缺陷是连铸坯实现洁净化和均质化的技术瓶颈。深入研究结晶器喂钢带技术,通过改变结晶器内熔体的温度场,降低结晶器内熔体过热度和温度梯度,提高形核率和铸坯等轴晶率,全面改善铸坯中心偏析和中心疏松,提高连铸坯洁净化和均质化水平。Cleaning and homogenization of continuous casting slab are the main development direction of continuous casting technology,but the defects such as central segregation and central porosity are the technical bottleneck of cleaning and homogenization of continuous casting slab.In this paper,the steel strip feeding technology in the mold is deeply studied.By changing the temperature field of the melt in the mold,reducing the superheat and temperature gradient of the melt in the mold,improving the nucleation rate and equiaxed crystal rate of the slab,comprehensively improving the central segregation and porosity of the slab,and improving the cleaning,purification and homogenization level of the continuous casting slab.

关 键 词：喂钢带 中心疏松 中心偏析 

分 类 号：TF3[冶金工程—冶金机械及自动化]