Ceramic foam filter
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United States of America Patent
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Dec 4, 1990
Issued Date -
N/A
app pub date -
Jun 26, 1989
filing date -
Mar 23, 1987
priority date (Note) -
Expired
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Abstract
An improved ceramic foam filter for use in filtering molten metal prepared from a ceramic slurry containing silicon carbide and a colloidal silica binder. The filter has a solids content of at least 50% silicon carbide and at least 3% of silica.
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