【作者】 张琦； 于艳； 方园；

【Author】 Zhang Qi;Yu Yan;Fang Yuan;Department of Mechanical Engineering,Qingdao Technological University;Advanced Technology Institute,Technology Center of Baosteel;

【机构】 青岛理工大学机械学院； 宝钢技术中心前沿技术研究所；

【摘要】 熔池与结晶辊间的界面热流影响着铸带的组织性能和表面质量,因此,本文采用数值模拟的方法,获得了连铸工艺参数和界面热流对结晶辊出口处薄带表面温度的影响,并获得界面热流与连铸工艺参数间的定量关系式,可以得到如下结论:(1)界面热流、液位高度与熔池出口处薄带表面温度呈线性反比变化;拉速、钢水过热度、辊缝与熔池出口处薄带表面温度呈线性正比变化。(2)拉速是影响熔池出口处薄带表面温度的最主要的因素,其次为界面热流和辊缝,最后为液位高度和钢水过热度。此外,本文建立了界面热流与连铸工艺参数间的关系模型可以为连铸工艺参数的制定提供参考。更多还原

【Abstract】 Interface heat flux between the pool and the rolls affects the structural properties and surface quality of the twin roll cast strip, so, in this paper, the numerical simulation method is used to build the mathematical model of flow and heat transfer of pool, and the effect of the interface heat flux and continuous casting process parameters on the strip surface temperature at the roll outlet is acquired, then the MINITAB is used to build the relationship between the strip surface temperature and the interface heat flux and continuous casting process parameters. Because the strip surface temperature is easy to measure, then the quantitative relationship between interface heat flux and continuous casting process parameters can get by reverse derivation which provide a reference for custom casting process parameters.更多还原