| 摘要 |
PROBLEM TO BE SOLVED: To provide an resin-coated aluminum alloy can lid having adhesion and corrosion resistance. SOLUTION: In the can lid made of an aluminum alloy sheet, the aluminum alloy sheet is made of an aluminum alloy containing 0.2 to 5.5% of Mg, 0.05 to 1% of Si, 0.05 to 1% of Fe, 0.01 to 0.35% of Cu, 0.01 to 2% of Mn and 0.01 to 0.4% of Cr by wt.%. Then, on at least one side surface of the aluminum alloy sheet, a surface treatment layer containing 3 to 30 mg/m<SP>2</SP>of a zirconium compound by the zirconium atom conversion is provided. In addition, on the top of the surface treatment layer, an epoxy acrylic resin coating or a polyester-based resin coating is applied, and then, is dried for this resin coated aluminum alloy can lid which is excellent in corrosion resistance and adhesion. COPYRIGHT: (C)2007,JPO&INPIT |
