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AssigneesABB Schweiz AG, ArcelorMittal
InventorsBengt Rydholm, Fredrik Sandberg, Hongliang Yang, Jan-Erik Eriksson, Jean-Marie Galpin, Bruno Langlet, Jean-Luc Curé, Nicolas Triolet, Thierry Lecoester
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A method of controlling an electromagnetic stirrer arranged around a submerged entry nozzle (SEN) of a tundish provided with a stopper rod to control throughput of the tundish, the SEN being configured to provide tapping of molten metal from the tundish and the electromagnetic stirrer being configured to generate a rotating magnetic field in the SEN, wherein the method includes controlling the electromagnetic stirrer to operate only when a gas flow rate through the stopper rod is in a first range of 1.5 NL/min to 20 NL/min.
A method of controlling an electromagnetic stirrer arranged around a submerged entry nozzle (SEN) of a tundish provided with a stopper rod to control a casting throughput of the tundish, the SEN being configured to provide tapping of molten metal from the tundish and the electromagnetic stirrer being configured to generate a rotating magnetic field in the SEN, wherein the method comprises:
A stirring system for a metal-making process, comprising:
The stirring system as claimed in 10, wherein the first range is 2 NL/min to 15 NL/min.
Dependencies are inferred from the claim text.