Numerical modeling and analysis of the thermal behavior of copper molds in continuous casting

Abstract

In this study, we establish a 3-D numerical analysis model to analyze the thermal behavior and to obtain the detailed heat transfer coefficient of a copper mold in a continuous casting system. This heat transfer coefficient changes according to variations in the mold geometry or cooling system. For increased flow speeds of the cooling water, the heat transfer coefficient also increases, but the rate of increase for the coefficient diminishes at higher flow speeds. As the thickness of the mold between the melt and the cooling water slots increases, the mold's heat transfer coefficient decreases. However, the uniformity of the heat transfer coefficient improves with greater thickness. The effect of distance between cooling water slots on the mold's heat transfer coefficient is also observed. Calculations show that greater distances between cooling water slots decrease the heat transfer coefficient.

Heat transfer behaviour of funnel mould copper plates during thin slab continuous casting and channel structure optimization

“…However, the temperature distributions of cooling water in different channels are certainly nonuniform, as well as the heat transfer coefficient. For this reason, Xie [39] and Ko [40] respectively developed a model to calculate the distributions of cooling water temperatures and heat transfer coefficients. Though both of the models have their advantages over the conventional Dittus–Boelter and Sleicher–Rouse models, the effects of water velocity, inlet water temperature and channel wall roughness, etc.…”

Determination of optimum cooling conditions for continuous casting by a meshless method

“…They used the FPM for the thermal part of the simulation and the meshless local Petrov-Galerkin method for the elasticplastic part. Ko et al 17 established a 3D numerical model for the analysis of the thermal behavior of copper molds in the continuous casting process.…”