Countergravity Casting Apparatus and Desulfurization Methods
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United States of America
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Issued Date -
Feb 6, 2020
app pub date -
Oct 11, 2019
filing date -
Oct 11, 2019
priority date (Note) -
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Abstract
An apparatus for countergravity casting a metallic material, comprises: a crucible for holding melted metallic material; a casting chamber for containing a mold; a fill tube capable of extending into the crucible to communicate melted metallic material to the casting chamber; a gas source coupled a headspace of the melting vessel to allow the gas source to pressurize said headspace to establish a pressure differential to force the melted metallic material upwardly through said fill tube into said mold; and means for gettering sulfur.
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