NON-CONTACTING MOLTEN METAL FLOW CONTROL
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United States of America Patent
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Issued Date -
Sep 22, 2022
app pub date -
Jun 10, 2022
filing date -
May 21, 2014
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Abstract
Systems and methods are disclosed for using magnetic fields (e.g., changing magnetic fields) to control metal flow conditions during casting (e.g., casting of an ingot, billet, or slab). The magnetic fields can be introduced using rotating permanent magnets or electromagnets. The magnetic fields can be used to induce movement of the molten metal in a desired direction, such as in a rotating pattern around the surface of the molten sump. The magnetic fields can be used to induce metal flow conditions in the molten sump to increase homogeneity in the molten sump and resultant ingot.
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