| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin-coated aluminum alloy plate material for an aluminum electrolytic capacitor case, which has excellent formability even when formed into an aluminum electrolytic capacitor case having a large height/diameter ratio using volatile press oil. SOLUTION: On an aluminum alloy plate of 30 to 1,000 pieces/mm<SP>2</SP>in the number of projections exceeding arithmetic average roughness Ra through three-dimensional roughness measurement and 10 to 100μm/piece in average length of rolling-directional lengths of projections exceeding Ra, a resin layer of polyester-based resin containing one kind or two kinds of melamine resin and phenol resin as a curing agent is formed to have a thickness of 2 to 22μm. The polyester-based resin may further contains 1 to 50% by weight of epoxy resin; and the number average molecular weight of the epoxy resin is preferably 5,000 to 13,000. COPYRIGHT: (C)2009,JPO&INPIT
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