Method and apparatus for making a sand core with an improved production rate
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United States of America Patent
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Jan 16, 2007
Issued Date -
N/A
app pub date -
Aug 19, 2003
filing date -
Mar 18, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to A method and apparatus for making a sand core (112) utilizing purge air through a core box (100 and 100') to harden the binder in the sand core (112) proximate the ejection pins (106 and 106'). The sand core (112) may be removed from the core box (100 and 100') prior to drying the binder completely thereby resulting in an improved production rate of the sand core (112).
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