高铝钢非反应性连铸保护渣的研究

来源期刊：钢铁钒钛2010年第3期

论文作者：王欢 唐萍 文光华 于雄

文章页码：20 - 24

关键词：高铝钢； 结晶器保护渣； 低SiO₂； 非反应性

Key words：high aluminium steel； mold fluxes； low SiO₂,non-reactive property

摘    要：针对目前高铝钢用结晶器保护渣中SiO₂易被钢液中的Al还原而导致连铸无法顺行的问题,设计了低SiO₂试验渣系并进行粘-温曲线及熔点测试试验。结果表明:低SiO₂渣系具有良好的基本理化性质,具有工业应用的潜能;通过热力学分析及钢-渣界面反应试验证明,当保护渣中SiO₂含量低于6%时为非反应性保护渣。

Abstract: The SiO₂ component of the traditional mold fluxes can easily been deoxidized by the Al contained in liquid high aluminium steel.So a series of mold fluxes containing lower SiO₂ was designed to solve this problem,and their viscosity-temperature curves and melting points were tested.The results showed that these viscosities and melting points are suitable to industrial application.The thermodynamic analysis and the steel-slag interfacial reaction experiment showed that the mold fluxes of which SiO₂ content is less than 6% can be called non-reactive mold powder.