Method for determining and regulating the level of a bath of mol

Details Method for determining and regulating the level of a bath of mol Method for determining and regulating the level of a bath of mol

1991-04-11

1992-12-15

Batten, Jr., J. Reed

Metal founding

Process

With measuring, testing, inspecting, or condition determination

164449, 164475, 266 78, 266239, B22D 1118, B22D 3700

Patent

active

051708396

ABSTRACT:
An inert gas flow is introduced into a molten metal bath at a location in a vessel. The absolute pressure of the gas flow through the molten metal other than zero flow is determined. The pressure acting on the surface of the bath is measured and the difference between the surface pressure and the absolute pressure is determined. The difference in converted into a distance measurement that reflects the actual distance between the surface of the bath and the location of introduction of the gas flow into the bath. The distance measurement is compared with a predetermined desired distance value and a resultant measurement is formed therefrom. The level of the bath is regulated as a function of the resultant measurement. The resultant measurement is converted into an electric setting signal and sent to a setting member for regulating the level of the bath and/or the amount flowing out of or withdrawn from the vessel.

REFERENCES:
patent: 2889596 (1959-06-01), Savage et al.

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