CASTING MOLD SURFACE TREATMENT METHOD AND CASTING MOLD USING SAID METHOD

摘要

Disclosed is a method for treating the surface of a casting mold.  The method comprises covering the surface of a casting mold with a carbon film containing at least one nanocarbon compound selected from the group consisting of carbon nanocoils, carbon nanotubes, and carbon nanofilaments and coating fullerenes on the surface of the carbon film.  The adoption of the method for a surface, such as a cavity surface of the casting mold, with which a molten molding material such as aluminum comes into contact can suppress sticking of the molten molding material to the mold and can reduce the mold release resistance of a product to improve mold releasing effect.  The mold releasing effect can be maintained for a longer period of time than that in the conventional carbon film.