Method of fabricating an investment casting mold and slurry therefor
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United States of America Patent
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Nov 28, 2017
Grant Date -
Jun 11, 2015
app pub date -
Nov 6, 2014
filing date -
Dec 9, 2013
priority date (Note) -
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Abstract
A method of fabricating an investment casting mold includes using a zircon-containing slurry to form a facecoat of a refractory investment wall of a mold cavity in an investment casting mold. The zircon-containing slurry includes, by weight, at least 70% of zircon powder. Also disclosed is a slurry for use in an investment casting mold. The slurry includes, by weight, at least 70% of zircon powder, 10%-30% of colloidal silica material, and 1%-10% of a carrier solvent. The method and slurry can be used to fabricate an investment casting mold that has a refractory investment wall with a facecoat having, by weight, at least 70% zircon.
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