PLASTIC CASING AND FORMATION THEREOF

摘要

PURPOSE:To unevenly dispose high permeability substance having magnetism on an inner surface of an electromagnetic wave shielding plastic casing so as to improve its external appearance and to raise an electromagnetic wave shielding effect in the casing. CONSTITUTION:In a method for molding a magnetic wave shielding plastic casing 10 by pouring molten plastic in which high permeability substance 8 having magnetism in a molding unit, a magnetic field generator is buried in an inner surface molding unit for molding an inner surface 9 of the casing 10, and the casing 10 is molded while generating a magnetic field around the inner surface molding unit.