中國(guó)有色金屬學(xué)報(bào)(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 16 No. 5 October 2006 |
SU Yan-qing (蘇彥慶)1，LEI Xiu-qiao(雷修橋)2, FU Heng-zhi
（1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;
2. Foundry Co Ltd, First Automobile Group Corporation, Changchun 130011, China）
Abstract: A mathematical model of the centrifugal filling process was established. The calculated results show that the centrifugal field has an important influence on the filling process. Moreover, the process of liquid flow and the location of free surface in sprue were simulated based on the Solution Algorithm-Volume of Fraction (SOLA-VOF) technique. In order to verify the mathematical model and computational results, hydraulic simulation experiment was carried out. The results of experiments and numerical simulation indicate the accuracy of mathematical model. Two kinds of filling methods were investigated and the results show that the bottom filling is better than the top filling that can achieve stable filling and reduce defects.
Key words: titanium alloy; vertical centrifugal casting; hydraulic simulation; numerical simulation; top filling; bottom filling
