| 摘要 |
The invention relates to a method for treating the surfaces of aluminium or aluminium alloys by anodically oxidising the aluminium or aluminium alloys in an electrolyte, the electrolyte containing 3 to 30 wt. % of an alkane sulfonic acid. The invention also relates to the use of aluminium or aluminium alloy workpieces produced according to said method, in the building trade, in car or aeroplane construction and in packaging. The invention further relates to an electrolyte composition for the anodic oxidation of aluminium or aluminium alloys, wherein the electrolyte contains 3 to 30 wt. % of an alkane sulfonic acid, as well as the use of an alkane sulfonic acid in a method for the anodic oxidation of aluminium or aluminium alloys in order to increase the speed of the anodic oxidation and to reduce the required energy consumption for the process. |
