| 摘要 |
PROBLEM TO BE SOLVED: To provide a coating agent composition for sand mold casting which has high metal penetration resistance and satisfactory coating operability, and to provide a method for producing a casting using it. SOLUTION: The coating agent composition for sand mold casting includes a refractory aggregate, binder grains and a solvent. The binder grains are insoluble in the solvent, the actual carbon ratio at 900°C is ≥20 wt.%, and also, sphericity is 0.90 to 1.00. Further, in the method for producing a casting, a sand mold for casting obtained by coating the surface 1 of the sand mold with a coating agent composition is used, as the coating agent composition, a coating agent composition for sand mold casting is used. COPYRIGHT: (C)2011,JPO&INPIT |
