Quiescent transfer of melts
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United States of America Patent
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Issued Date -
Aug 28, 2008
app pub date -
Feb 23, 2007
filing date -
Feb 23, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A quiescent melt handling system includes a holding furnace (2, 120, 320-720) for a molten metal melt. The holding furnace has a relatively large surface area and a relatively shallow depth, having a width to depth ratio in the range of 4-100 to 1. Also provided is structure (650-680) in the holding furnace for separating inclusions from the melt in the holding furnace. A quiescent transfer casting method includes melting a metal to form a melt and transferring the melt into a holding furnace. A hydrogen content in the melt is passively equilibrated with a dry atmosphere maintained in the holding furnace. Subsequently, the melt is withdrawn from the holding furnace.
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