Hydraulics numerical simulation on filter purification of molten metal
来源期刊：中国有色金属学报(英文版)2003年第z1期
论文作者：GENG Yao-hong(耿耀宏) FANG Wen-bin(房文斌) YANG Yi-tao(杨弋涛) YE Rong-mao(叶荣茂) AN Ge-ying(安阁英)
文章页码：144 - 147
Key words：molten metal; filtration; flowing process; pressure loss
Abstract: The flowing process of filtered and unfiltered molten metal was investigated through hydraulic simulation. The equations for pressure loss was established according to hydraulics and mathematic deduction. The pressure loss model obtained can be used to predict the flow velocity and filling time of molten metal, and also can be used as a guidance when adapting ceramic filters for a casting system. The total loss of flowing pressure and its affecting factors were analyzed. The results show that the pressure loss is related to the flowing velocity and especially the enlargement coefficient of transverse area of filter(K). When K=4-6 , the pressure loss is the lowest and the effective pressure of molten metal flow can be ensured.
GENG Yao-hong(耿耀宏)1， FANG Wen-bin(房文斌)1,2，YANG Yi-tao(杨弋涛)2，YE Rong-mao(叶荣茂)2，AN Ge-ying(安阁英)2
(1. Research Institute for Micrometer and Nanometer Materials,
Harbin Institute of Technology(Weihai), Weihai 264209, China;
2. School of Materials Science and Engineering,
Harbin Institute of Technology, Harbin 150001, China)
Abstract:The flowing process of filtered and unfiltered molten metal was investigated through hydraulic simulation. The equations for pressure loss was established according to hydraulics and mathematic deduction. The pressure loss model obtained can be used to predict the flow velocity and filling time of molten metal, and also can be used as a guidance when adapting ceramic filters for a casting system. The total loss of flowing pressure and its affecting factors were analyzed. The results show that the pressure loss is related to the flowing velocity and especially the enlargement coefficient of transverse area of filter(K). When K=4-6 , the pressure loss is the lowest and the effective pressure of molten metal flow can be ensured.
Key words:molten metal; filtration; flowing process; pressure loss
