Molding method of resin molded product and resin molded product

Abstract

A molding method of a resin molded product in which it is possible to increase the welding strength between the core member and the resin sheets is provided. In a molding method of a resin molded product in which a core member including a foaming element is interposed between at least two resin sheets in a melted state into a laminated product, wherein the resin sheets include fibrous filler, and while melting surfaces of the core member by heat of the resin sheets, the core member and the resin sheets are welded onto each other, and the core member and the resin sheets are clamped by a metallic mold, to mold the resin molded product.

1 . A molding method of a resin molded product in which a core member including a foaming element is interposed between at least two resin sheets in a melted state into a laminated product, characterized in that:
 the resin sheets comprise fibrous filler, the method comprising:   a welding step in which while melting surfaces of the core member by heat of the resin sheets, the core member and the resin sheets are welded onto each other; and   a molding step in which the core member and the resin sheets are clamped by a metallic mold, to mold the resin molded product.   
     
     
         2 . A molding method of a resin molded product in accordance with  claim 1 , characterized in that the core member and the resin sheets comprise styrene-based resin. 
     
     
         3 . A molding method of a resin molded product in accordance with  claim 1 , characterized in that the core member and the resin sheets are compressed by clamping the metallic mold. 
     
     
         4 . A resin molded product in which a core member including a foaming element is interposed between at least two resin sheets into a laminated product, characterized in that:
 the resin sheets comprise fibrous filler; and   the resin molded product comprises a laminated structure in which the core member with melted surfaces and the resin sheets in a melted state are welded onto each other into one block.   
     
     
         5 . A resin molded product in accordance with  claim 4 ,
 characterized in that the core member and the resin sheets comprise styrene-based resin.   
     
     
         6 . A molding method of a resin molded product in accordance with  claim 2 , characterized in that the core member and the resin sheets are compressed by clamping the metallic mold.