METHOD FOR MANUFACTURING ALUMINUM ALLOY-COATED PLATE FOR CAN LID, AND ALUMINUM ALLOY-COATED PLATE FOR CAN LID

摘要

PROBLEM TO BE SOLVED: To provide an aluminum alloy-coated plate for a can lid which does not cause the defective appearances such as a blister defect and a dent defect, and has a coating film excellent in coating performances such as film adhesion and corrosion resistance, and to provide a method for manufacturing the aluminum alloy-coated plate for the can lid.;SOLUTION: The method for manufacturing the aluminum alloy-coated plate for the can lid includes: a heating and drying process for drying an aluminum alloy plate to which a reaction type chemical conversion treatment has been applied for at least one second at an atmospheric temperature of 100-150°C; a cooling process for cooling the aluminum alloy plate after drying to a temperature of 60°C or less, spending ten seconds or more; and a film formation process for forming the coating film on a surface of the aluminum alloy plate by applying an aqueous coating material to the surface of the aluminum alloy plate after cooling, and baking the aqueous coating material to the surface of the aluminum alloy plate.;COPYRIGHT: (C)2012,JPO&INPIT