Apparatus and process for the centrifugal casting of metals

Abstract From the Canadian patent

The present invention provides a process for melting and centrifugal casting of metals in apparatus which comprises rotatable shell having an axial feed tube communicating with the interior of an airtight chamber containing a furnace for melting the metal, said process comprising melting metal in said furnace, maintaining said chamber and said shell constantly under vacuum throughout said melting process moving said shell and said chamber relatively to each other to bring said feed tube from a position outside the molten metal in said furnace to a position immersed in said molten metal admitting a gas, neutral to the metal into said chamber to create a pressure difference between said …