THERMOPLASTIC RESIN-COATED ALUMINUM ALLOY PLATE AND METHOD AND APPARATUS FOR MANUFACTURING THE SAME

摘要

A thermoplastic resin-coated aluminum alloy plate which has a high processing adhesion, i.e., which does not encounter the separation of laminated thermoplastic resin layers even when it is subjected to a severe process, i.e., even when it is subjected to deep drawing, stretching, and then ironing. To obtain this thermoplastic resin-coated aluminum allow plate, an aluminum alloy plate is immersed in an alkali solution or subjected to a spraying treatment using an alkali solution, and the resultant product is washed with water, the washed plate being put in a special surface condition by immersing the plate in an acid solution or spraying an acid solution thereon, a thermoplastic resin being applied to both surfaces of the aluminum allow plate via or not via a bonding agent.