Development of cooling device aiming at shortening die-cast cooling time

By lowering the thermal conductivity of the inner pipe prevents the temperature change of the cooling water

Abstract

Temperature measurements were performed on water at temperature 17.0°C in pipes consisted of copper and PVC fixed in water at temperature 40.0°C to study the thermal conductivity and temperature changes for the sake of shortening die-cast cooling time. Larger temperature changes of water were observed in pipes consisted of copper than PVC. Using pipes with different inner diameter, we found that the thicker pipes eased the temperature changes than the narrower ones. In addition, measuring temperature changes of water with different flow volumes, we confirmed that the temperature changes of water were smaller with a fast flow volume.