摘要 |
PROBLEM TO BE SOLVED: To provide a composition of coating agent for sand mold casting with which the characteristics of burning-on resistance, improvement of coating strength, dispersion stability, drying property of water-based coating, crack preventive property at firing and drying time of alcohol coating, etc., are improved at good balance. SOLUTION: The composition of the coating agent for sand mold casting is composed of a fireproof aggregate having 0.88-1.00 sphericity, a binder and a solvent. COPYRIGHT: (C)2005,JPO&NCIPI
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