Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Patent
1994-05-10
1995-04-18
Kastler, Scott
Specialized metallurgical processes, compositions for use therei
Processes
Producing or treating free metal
75687, 266901, C22B 916
Patent
active
054074622
ABSTRACT:
A mass flow gravity feed furnace charger comprises a vertically-oriented elongated hollow conduit which is associated with an apertured heat-resistant charge-well cover adapted to lie essentially in contact with the upper surface of a molten metal pool in the charge well of a metal-melting furnace. Presized scrap metal charged into the conduit collects atop the surface of the molten metal pool, since the bottom opening of the conduit communicates with the charge-well cover aperture and permits the metal scrap to fall by gravity directly into the molten metal in the charge well. When the weight of the metal scrap column is sufficient to offset the resistance of the upper surface of the molten metal pool, the weight of the collected metal scrap gravitationally forces it into the molten metal mass where it melts and is assimilated. Employment of the method and charger of the invention enables the controlled introduction of metal scrap by mass flow and gravity feed directly into and beneath the surface of the pool of molten metal and obviates numerous disadvantages and inconveniences of past practices.
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Hueschen Gordon W.
Kastler Scott
Premelt Systems, Inc.
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