北京科技大学学报2009，Vol.31Issue(6)：777-781,5.
连铸保护渣道动态压力计算模型及影响因素
Impact factors and mathematical model of dynamic pressure in a mould flux channel
摘要
Abstract
A mathematical model of dynamic pressure in a mould flux channel was established, and the pressure fluctuation rule was simulated. The effects of mould flux channel shape parameters, continuous casting technical parameters and mould flux viscosity on the pressure were researched. The results indicate that the flux channel pressure comes to the negative maximum and positive maximum when the mould oscillation velocity reaches the maximum upward velocity and the maximum downward velocity, respectively. The parameters of mould flux channel shape have important effect on the pressure. Both the positive pressure and negative pressure are depressed greatly with the increases of flux channel entrance and exit widths. But the increase of flux channel length makes the pressure large. Both the withdrawal speed and mould oscillation velocity influence the flux channel pressure. With increasing withdrawal speed, the maximum of negative pressure is enlarged, while the maximum of positive pressure is depressed. The increases of mould oscillation velocity and flux viscosity make the maximums of positive pressure and negative pressure enhanced.关键词
连铸/保护渣道/结晶器振动/拉速/振动速度/黏度Key words
continuous casting/ mould flux channel/ mould oscillation/ withdrawal speed/ oscillation velocity/ viscosity分类
金属材料引用本文复制引用
王宏明,王振东,李桂荣,赵玉涛..连铸保护渣道动态压力计算模型及影响因素[J].北京科技大学学报,2009,31(6):777-781,5.基金项目
国家高技术研究发展计划资助项目(No.2007AA03Z54805) （No.2007AA03Z54805）
江苏省高技术研究重点资助项目(No.BG2007030) （No.BG2007030）
江苏大学高级人才启动基金资助项目(No.07JDG084) （No.07JDG084）
江苏省高校自然科学研究计划资助项目(No.05KJD450043) （No.05KJD450043）
