Gas flow control system for molten metal molds with permeable perimeter walls
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United States of America Patent
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Feb 16, 2010
Grant Date -
Feb 21, 2008
app pub date -
Aug 18, 2006
filing date -
Aug 18, 2006
priority date (Note) -
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Abstract
A gas flow control system for molten metal molds with permeable perimeter walls, wherein an approximately constant gas mass flow is maintained in individual molds and approximately equal gas mass flows are maintained in molds on the same mold table. A PLC is utilized in combination with a gas mass flow controller to continually monitor and maintain the approximately desired mass flow of gas to the mold cavities.
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