ALUMINUM ALLOY STRIP WITH IMPROVED SURFACE APPEARANCE AND METHOD FOR PRODUCING SAME.

摘要

The invention relates to an aluminum alloy strip with an improved surface appearance, said strip being produced by hot rolling and/or cold rolling and consisting of an aluminum alloy of the type AA 3xxx, AA 5xxx, AA 6xxx, or AA 8xxx. The aim of the invention is to provide an aluminum alloy strip which is suitable for a pleasing and elegant surface appearance despite the increased content of alloy components. This is achieved in that the completely rolled aluminum alloy strip has a luminance value L* (ΔL) increase of more than 5 after a degreasing process in comparison to the greased roller state in a surface color measurement in the CIE L*a*b* color space using a normal light type of the type D65 and a normal observation angle of 100 with the exclusion of the direct reflection in a 45°/0° geometry.