Patent ID: 10189196

Abstract:
A resin molded piece is made from a crystalline resin and is molded by filling a molding space 36 which is defined between a movable mold 32 and a fixed mold 34 with the resin. The resin molded piece has a designed surface 18a on to which a surface of the movable mold 32 is transferred and a non-designed surface 18b on to which a surface of the fixed mold 34 is transferred. The designed surface 18a includes a mirror surface portion 18a. Center line average roughnesses Ra of the mirror surface portion 18c and the non-designed surface 18b are both 0.5 μm or smaller. According to the resin molded piece and a fabrication method therefor, the surface roughness of the designed surface can be reduced while restricting a reduction in productivity.