Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Patent
1996-08-28
1998-12-29
Kastler, Scott
Specialized metallurgical processes, compositions for use therei
Processes
Producing or treating free metal
266901, C22B 900
Patent
active
058534547
ABSTRACT:
Mass flow gravity feed furnace charger apparatus includes (1) a charge-well cover having an aperture and (2) an essentially vertical conduit for forming a substantially vertically-oriented column of metal chips or scrap within and above the aperture, and (3) structure for bringing both (1) and (2) into position above a charge well. The conduit is rapidly moveable up and down to force the metal chips or scrap into molten metal in the charge well even when the dross level at the surface of the molten metal is considerable, so that the apparatus and corresponding method permit charging when gravity feed alone is not sufficient or sufficiently rapid. In a preferred embodiment, the conduit has an interior surface provided with gripping means to assist with the downward movement of metal chips or scrap into the molten metal in the charge well when the up and down motion of the conduit is in effect.
REFERENCES:
patent: 5211744 (1993-05-01), Areaux
patent: 5407462 (1995-04-01), Areaux
Kastler Scott
Premelt Systems, Inc.
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