摘要
在高品质钢铁材料现代化生产流程中,对连铸结晶器内部冶金行为的精确调控是保障铸坯质量与工艺稳定性的关键。结晶器内非对称流动是一种典型的、危害性极大的流场畸变形态,已成为制约高品质钢种在高速连铸条件下生产效率与成品率的关键技术瓶颈。首先,溯源并剖析了导致非对称流动的内在性与外在性因素,阐明其从微观扰动到宏观偏流的演化机理;然后,从不断演进的视角,梳理了控制策略从被动防御到主动干预的技术发展过程;最后,立足于对现有研究成果的综合分析,指出该方向的研究空白,并提出前瞻性的展望。旨在为冶金物理化学、多物理场耦合仿真及智能冶金领域提供工艺改进参考。
In the modern production of high-quality steel materials,precise control of the metallurgical behavior inside the continuous casting mold is crucial for ensuring slab quality and process stability.Asymmetric flow in the mold,a typical and highly detrimental form of flow field distortion,has become a key technical bottleneck limiting production efficiency and yield of high-grade steels under high-speed continuous casting conditions.This paper systematically reviews recent publicly reported domestic and international research on the topic.It traces and analyzes both intrinsic and extrinsic factors leading to asymmetric flow,and clarifies its evolution mechanism from microscopic disturbances to macroscopic biased flow.From an evolving perspective,it organizes the technical development of control strategies from passive defense to active intervention.Finally,based on a comprehensive analysis of existing studies,the paper identifies current research gaps in the field and proposes forward-looking perspectives,aiming to provide insights for process improvement in the fields of metallurgical physical chemistry,multi-physics coupling simulation,and intelligent metallurgy.
作者
罗衍昭
季晨曦
赵长亮
杜金磊
袁磊
李红霞
LUO Yanzhao;JI Chenxi;ZHAO Changliang;DU Jinlei;YUAN Lei;LI Hongxia(Research Institute of Technology,Shougang Group Co.,Ltd.,Beijing 100041,China;Steelmaking Department,Shougang Jingtang United Iron and Steel Co.,Ltd.,Tangshan 063200,Heibei,China;School of Metallurgy,Northeastern University,Shenyang 110819,Liaoning,China;State Key Laboratory of Advanced Refractories,Luoyang 471039,Henan,China)
出处
《中国冶金》
北大核心
2025年第11期16-27,共12页
China Metallurgy
基金
国家自然科学基金资助项目(52174302)。
关键词
连铸
结晶器
非对称流动
浸入式水口
电磁冶金
continuous casting
mold
asymmetric flow
submerged entry nozzle
electromagnetic metallurgy
