TEMPERATURE DISTRIBUTION IN CENTRIFUGAL CASTING WITH PARTIAL SOLIDIFICATION DURING POURING

Authors : Iredia Erhunmwun, C. E. Etin-osa

Pages : 39-45

View : 28 | Download : 14

Publication Date : 2019-12-31

Article Type : Research

Abstract :Abstract In this paper, we have provided the mathematical modelling of the conductive heat transfer in horizontal centrifugal casting which was then used to analyze the temperature distribution in centrifugal casting. The Finite Element Method (FEM) as a numerical tool was used to discretize and analyze the temperature distribution. The result obtained shows the temperature distribution both in the liquid cast region and the mould region. The pouring temperature of the liquid cast into the prepared mould was 1500 0 C and also to prevent thermal shock, the mould was preheated to a temperature of 250 0 C . After about 50 secs when the liquid cast has been poured into the mould, the result obtained shows a decrease in temperature from 1407.3477 0 C at a distance of 4.5cm to 1323.0772 0 C at a distance of 6.5cm from the centre of the mould which is the interface between the liquid cast and the mould. Also in the mould region, after about 50 secs, the temperature drops from 755.8252 0 C at 6.5cm to 350.6205 0 C at 15.5cm from the centre of the mould. The maximum percentage error was 0 .81996% and the minimum percentage error was 0.0000%. This comparison was made for the temperature distribution in the cast region and the mold region after about 50 secs when the molten metal has been poured into the mold cavity. This shows that the result obtained from this research is in agreement with the result obtained from Exact Differential Equation Method (EDEM).
Keywords : Centrifugal Casting, Finite Element Method, Heat Transfer, Discretization, Partial Solidification