Optimisation of induction heating for container-less melt extraction from a metallic sheet

This work is concerned with induction heating of a metal sheet going to be used for multiple instance melt extraction from the lower edge. The task formulation of heating the edge in first place while keeping the release of Joule’s heat along that edge as homogeneous as possible, i.e. the avoidance of end effects, is solved numerically with a parametric study. A set of factors is also physically modeled in the framework of an experimental series. Subject to variation are (i) the extension of the substrate, which simulates the extraction wheel, in both directions parallel and perpendicular to the inductor, and (ii) the protrusion depth of the edge of the sheet below the lower face of the inductor. Reasonable conformity may be stated between the calculated and the experimental results.