| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing resin moldings by which the resin moldings with high precision and strength are obtained by preventing an inverted blister or a weldline attributed to the shape characteristics of a finished product from being generated. SOLUTION: In manufacturing final moldings 1, a cylindrical inside layer 6 with a uniform wall thickness and a cylindrical outside layer 7 with a wall thickness of non-fixed form are separately molded. That is, first the inside layer 6 is molded and hardened and a resin is injected into a part outside of the inside layer 6 to integrally form the outside layer 7 with the inside layer 6. Thus the final moldings 1 are obtained. |
