Changshu anodic aluminum oxide and aluminum alloy anodizing technology takes improving oxidation speed and hardness as the development direction. In order to improve the oxidation speed and comprehensive performance, eoe-88 series pulse power supply with pulse wave is recommended. The pulse components in its output voltage and current are rich, which is equivalent to 300 small pulse waves superimposed on the DC wave per second, and the film-forming speed is fast.

Changshu anodizing composite anodizing is a new anodizing technology. Magnetic powders such as Fe3O4, CrO2 and TiO2, superhard powders such as Al2O3, SiC and sin and conductive powders such as graphite (micron level) are added to sulfuric acid, oxalic acid and trisodium phosphate electrolyte respectively to suspend them in the electrolyte for anodizing. The process has the advantages of easy operation, simple equipment and low cost. Compared with conventional anodic oxidation, its oxidation speed, upper limit of operating temperature and film performance are significantly improved.

At present, the research of Changshu anodizing additives is very active. There are many kinds of additives and different action mechanisms. The effective effect of additives makes it have great market potential.

To sum up, many new processes have emerged in the anodizing of aluminum and its alloys, but they are also challenged by various surface treatment methods. It is expected that the anodizing technology will still be the main surface treatment method in the next 10 years, but the process technology needs to be continuously improved in order to dominate for a long time.