Dispensing – Molten metal dispensing – Gaseous fluid engages molten metal
Patent
1991-03-22
1992-07-21
Kastler, Scott
Dispensing
Molten metal dispensing
Gaseous fluid engages molten metal
222590, 266236, B22D 4158
Patent
active
051315734
ABSTRACT:
A method and device are described for preventing the atmospheric contamination of molten metal during the transfer thereof from one vessel to another. The device includes a first metal ring releasably connected to a molten metal receiving vessel and second metal ring connected to a vessel containing the molten metal to be transferred. A viewing port is provided to allow observation of the molten metal as it is being transferred. A ceramic fiber blanket which encloses the molten metal stream as it is being transferred interconnects the two rings. During operation, an opening of the molten metal containing vessel attached to the second ring and the ceramic fiber blanket are aligned concentrically above the opening of the receiving vessel and the first ring. In the preferred embodiment, the ceramic fiber blanket is then mated to the first metal ring to form an enclosure around the path defined between the molten metal containing vessel and the receiving vessel for the transfer of molten metal therebetween. An inert gas is injected into the enclosure to purge it of atmospheric contaminants and molten metal may be transferred between the vessels.
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"The Shrouding of Top Poured Ingots", Petruska, I&SM, Aug. 1991.
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Vonesh et al, "Inert Gas Shrouding of Molten Metal Streams", 1986 AISE Spring Conference, Philadelphia, Pa., 21-23 Apr. 1986.
Bowerman Gary R.
Buri Reginald C.
Martin Gordon J.
Tommaney Joseph W.
Allegheny Ludlum Corporation
Kastler Scott
Viccaro Patrick J.
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