| 摘要 |
PROBLEM TO BE SOLVED: To provide a core material-containing polyamide resin molded product extremely high in the adhesion between a core material and a resin and enhanced in production efficiency by preventing the protrusion of the resin by solving a problem that the resin is broken by releasing the tensile stress remaining in the resin. SOLUTION: In the core material-containing polyamide resin molded product 1 wherein an outer peripheral part 5 comprising a polyamide resin is formed to the periphery of the core material 2 made of a metal, injection molding is performed so as to form a groove 6 to the boundary of the core material 2 and the outer peripheral part 5 of the surface of the molded product and the core material 2 is heated by high frequency induction in a state covering the surface provided with the groove 6 to once melt the resin at the contact part with the core material 2 before cooling the same. COPYRIGHT: (C)2004,JPO&NCIPI |
