On the primer coating layer of one side of the aluminum alloy board which formed the hard disk drive case which uses the brush revetment aluminum material and the said brush revetment aluminum material

摘要

PROBLEM TO BE SOLVED: To provide a resin coating aluminum material for hard disk case drive which is light in weight and is excellent in a molding workability and does not gener ate gas from resin coating films under a more strict use condition and moreover to provide a lightweight hard disk drive case having high corrosion resistance of material in which this resin coating aluminum material is used and the risk of a malfunction and a failure due to the generating of gas from organic resin coating films is not present and a hard disk driving device in which this hard disk drive case is used. ;SOLUTION: This resin coating aluminum material is constituted by forming a coating film which is to be formed with a coating compound in which a polyester resin having a hydroxyl group, an aminoplast resin and an epoxy resin are contained and whose thickness is equal to or thicker than 1 μm as a first layer on the primary coating film of the one side of an aluminum alloy plate on which a primary coating film is formed and by forming a coating film which is to be formed with a coating compound in which the polyester resin having the hydroxyl group and the aminoplast resin are contained and whose thickness is equal to or thicker than 5 μm as a second layer on the first layer.;COPYRIGHT: (C)1999,JPO