Pressure distribution in pouring basin for Ti 3Al - Nb alloy during the centrifugal casting process in permanent mould is analyzed. The expression of extra pressure item ΔP during the centrifugal casting process as well as relationship between the maximum angular velocity and melt height, pouring basin diameter is concluded. The results showed that pressure acting on melt consists of static pressure and extra pressure during the centrifugal casting process. Static pressure is determined by melt height whil...