Effect of Argon Gas on the Molten Titanium Flow in a Mesh Cavity

Abstract

Using a centrifugal casting machine for titanium, the effect of gas conversion, in air or in argon, on the titanium flow was investigated in the case of a mesh pattern.This factor exerted a profound influence on the shape of filled area rather than the castability.In argon, the early inflow reached the farthest portion of the mesh cavity, which was not observed in air.The flow observation indicated that the titanium flow in the cavity was laminar in argon or turbulent in air.In the case of laminar flow, the character of the centrifugal casting appeared more clearly where the driving force of flow was its velocity even in such a complicated pattern.