METHOD FOR THE PRODUCTION OF CORE SAND AND/OR MOLDING SAND FOR CASTING PURPOSES
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United States of America Patent
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Issued Date -
Dec 24, 2015
app pub date -
Jan 3, 2014
filing date -
Jan 4, 2013
priority date (Note) -
Abandoned
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Abstract
The invention relates to a method for producing core sand and/or molding sand for casting purposes. A granular mineral mold base material is mixed with at least one inorganic binder and additionally an inorganic expanding additive. According to the invention, water glass is used as the binder and expanded graphite is used as the expanding additive.
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