| 摘要 |
<p>The optical disk molding apparatus is equipped with a cavity side mold assembly (C) and a force side mold assembly (D), temperature control liquid passages (26, 40) which are formed between disc cavity plates (25, 39) and mounting plates (31, 48) of the respective assemblies, and temperature control liquid sealing means which are provided around an inner circumference and an outer circumference of the temperature control liquid passages. The sealing means have annular grooves (29, 30, 32, 33, 43, 44, 49, 50) which are formed between the disc cavity plates and the mounting plates around the inner circumference and the outer circumference of the temperature control liquid passages, rigid rings (27, 28, 41, 42) which are fitted in the annular grooves with a minute clearance therebetween, and a heat resistant sealing filler which is charged between the inner wall surface of the groove and the outer circumference of the metallic ring. <IMAGE></p> |
