| 摘要 |
PURPOSE: To obtain a molded product excellent in releasability of the molded product from molds and remarkably good in the surface precision and luster of the molded product by disposing the molds for injection molding, which are made of a silicone rubber, in matrices having rigidity as telescopic molds and injecting a thermoplastic resin into a cavity between the molds for injection molding. CONSTITUTION: A liquid photosetting silicone rubber composition is set on the basis of CAD data by utilizing a photoshaping system, and molds 12, 13 for injection molding, which are made of a silicone rubber whose hardness (hardness tester: A type) is 35-70 as specified in JIS K6301, are formed. These molds 12, 13 for injection molding are disposed, as telescopic molds, in matrices 14, 15 having rigidity. Then, the molds thus disposed are fixed with a bottom plate 16, a top plate 17 and a locating ring 18, and a thermoplastic resin is injected under an injection pressure of at most 300kg/cm<2> into a cavity 19 between the molds 12, 13 for injection molding through a sprue 9. |
