Simulation of Heat Transfer and Solidification in Continuous Casting of Copper Alloys with Emphasis on the Effect of Material Properties

摘要

Mathematical simulation of heat transfer and solidification is performed for the continuous casting process of copper alloys. The calculations are carried out with two earlier developed models, a three-dimensional heat transfer model and an interdentritic-solidification model, both tailored for copper alloys. The latter model provides the important thermophysical material data (enthalpy, thermal conductivity, density) for the former model, which calculates the temperature profiles and the shell thickness in the cast strand. The aim is to examine, which binary alloys containing phosphorous, silver, zinc, tin, nickel and aluminum can be cast safety with the studied process. The theory of simulation as well as the algorithms for the calculation of thermophysical material data are presented. Both models have been validated with some experimental measurements of solidification.