Molten steel treatment apparatus and molten steel treatment method
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United States of America Patent
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Mar 27, 2018
Issued Date -
N/A
app pub date -
Dec 24, 2013
filing date -
Dec 6, 2013
priority date (Note) -
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Abstract
Provided are a molten steel treatment apparatus and a molten steel treatment method capable of quickly measuring an inclusion adhesion state inside a nozzle during an operation. The molten steel treatment apparatus includes a container, a nozzle equipped in a molten steel tap hole of the container, a liner disposed on a portion of an inner circumferential surface of the nozzle and formed of an ion-conductive material, a power supply for applying electric power to the molten steel and the liner, and a measuring unit for measuring a voltage value or a current value between the molten steel and the liner. The molten steel treatment method includes measuring a voltage value or current value between the molten steel and the liner; and determining a thickness of an inclusion adhering to an interface between the molten steel and the liner by using the voltage value or the current value.
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