Addition and measurement of gases dissolved in molten metals

Details Addition and measurement of gases dissolved in molten metals Addition and measurement of gases dissolved in molten metals

1980-03-10

1982-05-25

Rosenberg, P. D.

Measuring and testing

Gas content of a liquid or a solid

By vibration

73 23, 204195P, G01N 700, G01N 2726

Patent

active

043310230

ABSTRACT:
Method and apparatus for measuring gases dissolved in molten metal. Also disclosed are method and apparatus for dissolving gases in molten metal and a method of forming a gas permeable but molten metal impervious ceramic tube. A ceramic member is leached by an invention process so as to be selectively gas permeable. The member is inserted into molten metal to submerge the permeable portion. Then a vacuum is applied to the member and dissolved gases are measured by the change in pressure caused by gases entering from the molten metal. In another embodiment gas is applied to the submerged member to cause it to dissolve in the molten metal.

REFERENCES:
patent: 2411157 (1946-11-01), Fene
patent: 3743588 (1973-07-01), Brown
patent: 3795500 (1974-03-01), Murphy
patent: 3855098 (1974-12-01), Fletcher
patent: 3896020 (1975-07-01), Le Blanc
patent: 3934470 (1976-01-01), Amati
patent: 4003818 (1977-01-01), Juillard
patent: 4092844 (1978-06-01), Oertle
patent: 4223549 (1980-09-01), Kitzinger

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