摘要
传统保护渣含较多的氟化物,会造成连铸设备腐蚀和环境污染等问题,保护渣无氟化已然成为绿色冶金的客观要求。目前无氟保护渣的研究取得了一定进展,但其冶金性能不稳定,在工业生产中尚未得到广泛应用,仍有一些性能的影响机理和机制有待深入探究。因此,本文从无氟保护渣的熔化性能、粘度性能以及结晶性能三个方面综述了近年来国内外关于结晶器无氟保护渣冶金性能的研究现状,分析了无氟保护渣各项物化性能研究成果,并对目前无氟保护渣的工业应用进行总结,指出了连铸无氟保护渣进一步的研究方向,即从分子动力学和热力学方面研究熔渣成分、结构对其性能的影响,旨在为绿色无氟保护渣的开发提供理论依据。
Traditional mold fluxes contain a large quantity of fluorides,which will corrode continuous casting equipment and pollute the environment. Nonfluorination of mold fluxes has been an objective requirement of green metallurgy. Although significant progresses has been achieved in the relevant research,the unstable metallurgical performances of fluorine-free mold fluxes limit their industrial applications,and the factors influencing the metallurgical properties remain undetermined. This paper reviews the worldwide efforts in exploring the metallurgical properties of fluorine-free mold fluxes in recent years,including melting properties,viscosity properties and crystallization properties,and analyzes relevant research results of various physical and chemical properties. It also contains a summary of current industrial applications of fluorine-free mold fluxes and a prospective discussion on the future trends,in which further investigations on the influence of composition and structure of slag on its performance from the aspects of molecular dynamics and thermodynamics are suggested. This review is expected to provide some guidance for the development of fluorine-free mold fluxes.
作者
韩秀丽
赵凯
刘磊
闫晓鹏
杜亮
王程
HAN Xiuli;ZHAO Kai;LIU Lei;YAN Xiaopeng;DU Liang;WANG Cheng(College of Mining Engineering,North China University of Science and Technology,Tangshan 063210,Hebei,China;College of Metallurgy and Energy,North China University of Science and Technology,Tangshan 063210,Hebei,China)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2022年第11期183-189,共7页
Materials Reports
基金
国家自然科学基金(51774140,51574105)
河北省高校基本科研业务费项目(JQN2020038)
河北省研究生创新资助项目(CXZZBS2021101)。
关键词
保护渣
无氟
冶金性能
连铸
mold fluxes
fluorine-free
metallurgical properties
continuous casting
