'Anodizing process, with low environmental impact, for a workpiece of aluminium or aluminium alloys'

摘要

The process for anodizing a workpiece of aluminium or aluminium alloys provides for the use of the workpiece as the anode of an electrolytic cell in the presence of an aqueous acid solution which contains from 10 to 200 g sulphuric acid and from 5 to 200 g L(+)-tartaric acid.