Device for introducing gas into molten metal

Details Device for introducing gas into molten metal Device for introducing gas into molten metal

C - Chemistry, Metallurgy

22

B

39/105

C22B 9/05 (2006.01) F27D 1/08 (2006.01)

Patent

CA 1228726

ABSTRACT OF THE DISCLOSURE A device for introducing gas into molten metal having a plug and a shell positioned thereabout in spaced re- lation is positioned in a passageway in a stirring block in a vessel containing a mass of molten metal, a spirally arranged rib on the exterior of said shell and a matching spirally arranged groove in the wall of the stirring block defining the passageway, and said groove forming a seal between said shell and said stirring block when said shell and plug are rotated sufficiently to engage said rib in said groove. -2-

462383

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