The science of successfully anodizing die cast substrates

摘要

A review of several questions received in 'Products Finishing Magazine' between 2001 - 2009 determined generally consistent problems with anodizing die castings. Summarised, the problems are: the anodic oxide finish is too thin to meet the design specifications or much thinner when compared to corresponding components manufactured from wrought processes; the finish appearance is unfavourable; and the corrosion resistance of the anodic oxide is insufficient.