Electromagnetic valve with slag indicator

Details Electromagnetic valve with slag indicator Electromagnetic valve with slag indicator

1977-10-25

1979-11-06

Scherbel, David A.

Dispensing

Molten metal dispensing

Flow controllers or assists

73304R, 137827, 164 4, 164155, 164251, 324204, B22D 3700

Patent

active

041732995

ABSTRACT:
A valve device for metallurgical containers includes an electric circuit formed by two electrodes opening out into the molten metal at the tapping point. The electric circuit measures the resistive voltage drop across the molten metal at the tapping point to determine the slag content in the tap stream by changes in the measured resistive voltage drop. The rate of tapping of the melt can be controlled simultaneously along with the indication of the presence of slag in the tap stream.

REFERENCES:
patent: 2743492 (1956-05-01), Easton
patent: 3002383 (1961-10-01), Mittelmann
patent: 3078412 (1963-02-01), Blake
patent: 3299706 (1967-01-01), Bailey et al.
patent: 3370466 (1968-02-01), Chang
patent: 3701357 (1972-10-01), Granstrom
patent: 4037761 (1977-07-01), Kemlo et al.

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