Abstract
Experimental results were obtained at the Mini-LIMMCAST facility [1], an experimental setup to model continuous casting of steel operated continuously as a loop with the cold liquid metal alloy GaInSn. The setup consists of a round mould with an inner diameter of 80 mm, representing a mould used in industrial bloom casting in a scale of 1:3. A mould-electromagnetic-stirrer (M-EMS) generated a rotating magnetic field (RMF) with different magnetic flux densities. Velocity profiles inside the mould were measured by Ultrasound Doppler Velocimetry (UDV). The experiments revealed an unexpected behaviour of the submerged jet: for medium magnetic field strengths of the RMF it can be observed, that the jet stops circling and stays at one position in the mould, bearing the risk of breakout due to continuous impingement of superheated material to one position of the solidified shell.
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