IMPROVEMENTS IN OR RELATING TO THE SURFACE TREATMENT OF MAGNESIUM AND ITS ALLOYS

摘要

A method of surface treatment of an anodised magnesium article including the steps of: 1) conditioning the article by application of an alkali metal hydroxide to create a strongly alkaline environment, 2) rinsing the conditioned article, 3) treating the surface by application of a suitable dye, and 4) rinsing the treated article. The conditioning step increases the ability of the surface to retain the dye. The dye may impart a colour to the article or provide characteristics to the surface which are not normally in the visible spectrum of the human eye.