| 摘要 |
A mold for use in molding glass, which prevents the occurrence of defects such as bulging of the body part or defects in the distinctiveness of the seam line in molding without increasing the molding surface temperature of the mold, and which reduces energy consumption and can apply a clear embossed design, such as stippled design, onto the surface of a glass molded product. The mold has a molding surface exhibiting a thermal emissivity of 0.85 or above. The thermal emissivity of 0.85 or above can be attained by forming a coating of a substance having a high thermal emissivity on the molding surface. The coating is black rust, a black chrome plating, a black chrome deposit formed by PVD treatment, a black coating, or the like. The black rust can be easily formed by applying an acid solution to the molding surface and heat-treating the resulting molding surface. |
