| 摘要 |
A method for producing a product where a synthetic resin film is joined to a metallic plate and hardly separates from the metallic plate effectively. A metallic plate is mounted in an injection mold for injecting synthetic resin thereinto, and a synthetic resin is injected into the mold to join a synthetic resin film to the metallic plate. A curling part of fold-back part is provided to the periphery of the metallic plate. By making use of the foaming and expansion or of the curling and shrinkage of the synthetic resin forced into the curling or fold-back part, the join of the synthetic resin to the metallic plate is strengthened. A metallic plate and a thermoplastic synthetic resin molded piece each having a similar mutual contact face are prepared, the thermoplastic synthetic resin molded piece is pressed to the heated metallic plate, and a synthetic resin film is strongly joined to the metallic plate by making use of the melt, curling, and shrinkage of the contact face of the thermoplastic synthetic resin molded piece. <IMAGE> |
