| 摘要 |
PROBLEM TO BE SOLVED: To provide a mold assembly which can reduce the warpage and distortion of a molding, can easily and stably transfer a minute uneven part to the surface of the molding, and is excellent in durability. SOLUTION: The mold assembly (A) is composed of the first mold part 10 and the second mold part 11, and has a mold for molding the thermoplastic resin molding in which a cavity 13 is formed when the mold is clamped, (B) a cavity insert 20 arranged in the first mold part 10, (C) a stamper 27 made of a metal film which is mounted freely attachably/detachably on the surface of the cavity insert 20 facing the cavity 13 and has an uneven part on the surface, and (D) a gate part 12. The cavity insert 20 is manufactured from a material 1.3-6.3 (W/m.K) in thermal conductivity, at least 550 kg/mm<2> in Vickers hardness, at least 4.9×10<10> N/m<2> , and 0.5-5.0 mm in thickness. |
