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Heat Transfer with Change of Phases in Continuous Casting

Abstract:

A commonly used method for the production of industrial metals involves controlled heat removal from a molten mass of material to produce solidification. In continuous casting, molten metal is poured into a hollow, water-cooled mold resulting in the formation of a solidified skin encasing the remaining molten mass. As the solid skin thickens with increasing contact time with the mold, it acquires sufficient strength to sustain pulling from the other side of the mold. As a result, a partially solidified ingot or slab emerges from the mold. Direct water-cooling on the solidified shell is employed until the center of the slab has fully solidified. The end objective is to produce high quality solid slabs with high yield and at the fastest possible rate. The presentation describes the development of a number of finite element models of heat transfer and solidification in industrial continuous casting process used in the production of steels and copper alloys. The capabilities and limitations of the FEM, encountered in the analysis of these systems, will be discussed.

This presentation was given by Ernesto Gutierrez-Miravete, Associate Professor, Rensselaer at Hartford, as part  of the ANSYS Users Group Meeting, held by CAE Associates on September 28, 2010.