Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1980-05-27
1982-07-06
Rosenberg, P. D.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 60, 204296, 204195M, 501 80, C22B 912
Patent
active
043381278
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.
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Allersma Ties
Simpson James E.
Lepiane Donald Carl
PPG Industries Inc.
Rosenberg P. D.
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