Abstract: An apparatus for use in de-oiling components comprises a furnace (10) for receiving components to be de-oiled and pumps (12, 14, 16) for creating a vacuum in the furnace. At least one of the pumps is a liquid ring pump. Oil is utilised to form the liquid ring and the oil is selected to be compatable with or the same as the oil to be removed from the contaminated components.
Type:
Grant
Filed:
June 17, 1996
Date of Patent:
July 20, 1999
Assignee:
Consarc Engineering Limited
Inventors:
John Glencross Wilson, John Corstorphine
Abstract: The apparatus includes casting stations disposed around a melt chamber of a furnace. Each casting station has a tundish for selectively transporting melt to the desired casting station. The apparatus is provided with apertures in the walls of the melting chamber to allow the tundishes to enter the melt chamber through fixed vacuum seals to receive molten metal from a tiltable melting unit and to convey the melt through the vacuum gate valve to the desired casting station.