Method and apparatus for controlling the flow of molten...

Details Method and apparatus for controlling the flow of molten... Method and apparatus for controlling the flow of molten...

2011-07-12

2011-07-12

Kerns, Kevin P (Department: 1735)

Metal founding

Process

Shaping liquid metal against a forming surface

C164S468000, C164S502000, C164S504000

Reexamination Certificate

active

07975753

ABSTRACT:
Method for controlling a flow of molten steel in a mould by applying at least one magnetic field to the molten steel in a continuous slab casting machine. Controlling a molten steel flow velocity on a molten steel bath surface to a predetermined molten steel flow velocity by applying a static magnetic field to impart a stabilizing and braking force to a discharge flow from an immersion nozzle when the molten steel flow velocity on the meniscus is higher than a mould powder entrainment critical flow velocity. Controlling the molten steel flow velocity on the meniscus to a range of from an inclusion adherence critical flow velocity or more to a mould powder entrainment critical flow velocity or less by applying a shifting magnetic field to increase the molten steel flow when the molten steel flow velocity on the meniscus is lower than the inclusion-adherence critical flow velocity.

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International Search Report and Written Opinion, Oct. 31, 2007, 11 pages.

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