Method of continuously casting steels
AssigneeKawasaki Steel Corporation
InventorsSeiko Nara, Akira Idogawa, Nagayasu Bessho, Tetsuya Fujii
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Abstract
When molten steel jetted through an immersion nozzle into a mold for continuous casting is controlled by applying static field between opposed side walls of the mold for the continuous casting, this invention provides cast slabs having good surface and internal qualities by feeding molten steel to the mold for the continuous casting at a throughput of not less than 6 t/min and simultaneously applying a static field having a magnetic flux density of at least 0.5 T to a meniscus portion in the mold for the continuous casting and a static field having a magnetic flux density of not less than 0.5 T to a lower portion of molten steel jetted out from a discharge port of the immersion nozzle.
Claims8
A method of continuously casting steel by controlling a jet of molten steel fed through an immersion nozzle into a mold for continuous casting while applying a static field between opposed side walls of the mold for the continuous casting, characterized in that molten steel is fed into the mold for the continuous casting at a throughput of not less than 6 t/min, and that an air-core superconducting electromagnet is used to simultaneously apply a static field having a magnetic flux density of greater than 0.5 T to a meniscus portion in the mold for the continuous casting and a static field having a magnetic flux density of greater than 0.5 T to a lower portion of molten steel jetted out from a discharge port of the immersion nozzle.
Dependencies are inferred from the claim text.