| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin molding die that provides a general resin molded article in which a resin material has excellent fluidity, excellent mold releasability and is effective for improving a die life, and that can be also applied to a forced extraction die of a molded article having an undercut portion in a product shape.SOLUTION: There is provided a resin molding die that is a die for molding a resin. The surface of a cavity or a functional surface of a mold is formed into a fine uneven surface having a surface roughness Ra of 20 nm to 800 nm.SELECTED DRAWING: Figure 1 |
