中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 13 Special 1 May 2003 |
（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
