Process for continuously determining the thickness of the liquid slag on the surface of a bath of molten metal in a metallurgical container
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United States of America Patent
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Apr 21, 1992
Grant Date -
N/A
app pub date -
Sep 12, 1990
filing date -
Sep 13, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
According to this process: the position in respect of height of the 'molten metal (2)/liquid slag (3)' interface (M) is continuously determined. Further the position of an isotherm (IS) located at the 'liquid slag (3)/powder layer (4)' interface is continuously determined by automatically controlling the position of a thermocouple (8) on this isotherm and by measuring the displacements of this thermocouple. By comparing the position in respect of height of the molten metal/liquid slag interface (M) with the position in respect of height of the isotherm (IS), the thickness and thus the variations in thickness of the liquid slag are continuously deduced.
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