Gas analyzer for molten metals

Details Gas analyzer for molten metals Gas analyzer for molten metals

1993-08-30

1994-09-13

Williams, Hezron E.

Measuring and testing

Gas content of a liquid or a solid

Of metal

G01N 710

Patent

active

053458087

ABSTRACT:
Disclosed is a probe for determining the gas content of molten metal. The probe comprises a porous filter head permeable to gas and impermeable to the molten metal and a hollow cast iron tube or sleeve having an upper portion and a lower portion, the sleeve or tube attached to the filter head at the lower portion. A small diameter tube may be positioned in the sleeve, or the cast iron tube may be formed to provide a small diameter bore. Means for drawing a vacuum on the tube and means for measuring gas pressure in the tube is provided.

REFERENCES:
patent: 2861450 (1958-11-01), Ransley
patent: 4239532 (1980-12-01), Allersma et al.
patent: 4454748 (1984-06-01), Terai et al.
patent: 4624128 (1986-11-01), Pelton
patent: 4757707 (1988-07-01), Harvey et al
patent: 4878375 (1989-11-01), Roggen
patent: 4907440 (1990-03-01), Martin et al.
E. Fromm, "Determination of the Hydrogen Concentration in Aluminum Melts by Continuous Measurement of the Hydrogen Equilibrium Pressure", Aluminum, 65 (1989). No. 12, pp. 1240-1243.
C. E. Ransley et al, "An Instrument for Measuring the Gas Content of Aluminum Alloys During Melting and Casting", Journal of the Institute of Metals, 1957-58, vol. 86, pp. 212-219.

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