Model experiment of mold filling process in vertical centrifugal casting

By using centrifugal governor, high-speed camera, and liquid as well as acryl glass molds to simulate the filling process of Titanium alloy melts. Results show that the liquid sticks to one side of the runner wall (or cavity wall) to fill and the side is opposite to the rotational direction. The whole filling process is divided into two sections, one is forward filling and the other is back filling. Experimental results show that bottom filling is better than top filling in that the former can realize stable filling, avoiding liquid crash in the cavity. The free surface of liquid is cambered like in the cavity and the runner, whose center is the rotational center.