Research on mould filling process of melt in vertical centrifugal casting

摘要

Mould filling of melt in vertical centrifugal casting is a complex process, which is governed by a number of processing variables. In this paper, a complete analysis of mold filling process of melt in vertical centrifugal casting is accomplished by combining theoretical analysis, numerical simulation and experiments. Results show that the melt fills the cavity with varying cross-sectional area and inclined angle. The filling process is divided into two steps in vertical centrifugal casting: forward filling and back filling. The cross-sectional area decreases and the inclined angle increases with increasing of the rotational velocity during forward filling. Moreover, the filling process of liquid has been simulated based on SOLA-VOF technique. The comparison between the experimental and the numerical results shows good agreement.