COMPOSITE OF METAL AND PLASTIC AND MANUFACTURE THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a lightweight composite with high rigidity by forming a metal-plated coat with a specific elastic modulus on an electrically conductive treated face on the first and the second surface of a plastic molding. SOLUTION: A metal-plated coat 13 with a thickness of 10-50μm comprising a metal having 150 GPs elastic modulus is provided on an electrically conductive treated face on the first and the second surface of a plastic molding 11. The metal plated coat 13 is preferably of such a construction that the difference in thickness between the first and the second surface of the plastic molding 11 is 20% or less. The area where the metal-plated coat 13 is formed is preferably 80% or more of the total area including the first and the second surface of the plastic molding 11. The materials for the plastic molding 11 are ABS or an ABS alloy material which can be easily etched using chromic acid, a polycarbonate which can be etched using the chromic acid through an appropriate pretreatment, or a polyamide resin or the like which can be etched using an acid other than the chromic acid. The plate thickness of the plastic molding 11 is normally 0.5-5.0 mm.