Temperature distribution in the die during die casting process was calculated and analyzed by the FEM software ProCast

and effects of temperature of cooling water

diameters of water tubes and its position on temperature field in the die were approached quantitatively and comparatively. The results reveal that temperature field in the die is almost accordant with temperature increment with cooling at 30℃ and 50 ℃. Position and diameters of water tubes have a great effect on the temperature distribution in the dies and the isothermal layer. With distance of water tubes to the cavity surface of 35 mm

the temperature distribution in the dies is more reasonable than that to 45 mm as a result of a higher temperature increment resulting in faster thermal transfer and a lower temperature gradient. In addition

with 10.5 mm in diameters of water tubes

the temperature distribution in the dies is more desirable than that of ones when the diameters of the water tubes are 8 mm and 9 mm.