Resin-coated sand
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United States of America Patent
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app pub date -
Aug 11, 2006
filing date -
Apr 1, 2003
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Abandoned
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Abstract
The resin-coated sand is produced by coating the surface of a refractory granular aggregate with a thermosetting resin and a thermoplastic resin. When using this resin-coated sand, a mold with a less rough surface can be produced by a RP molding apparatus. When using this mold made of the resin-coated sand, a casting with fewer gas defects can be produced.
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