What is the difference before and after aluminum oxidation processing

What is the difference before and after aluminum oxidation processing? In many workplaces, we need to process aluminum oxidation to improve the performance of the material. So, what are the differences before and after aluminum oxidation processing? For this problem, there must be many friends who are more curious, next, let's understand the specific content.

We can answer this question from three aspects. The first is that after the aluminum oxidation process, a dense oxide film will be generated on the surface of the material, so that even if it is placed in the air for a long time, it can prevent the aluminum material inside from oxidizing. The second is that if the green material without oxidation treatment is placed in the air for a long time, it is easy to have corrosion problems, and it is more likely to appear yellow spots or dark spots.

The third difference is that the material after aluminum oxidation processing will form a protective film on its surface, which will greatly improve the corrosion resistance of the material and increase its melting and boiling point. It can also be used as a heat-resistant material, and aluminum materials that have not undergone oxidation treatment do not have these characteristics. In addition, the chemical properties of the material after oxidation treatment will be more stable.

Nowadays, when it comes to aluminum oxidation processing, we can use different ways to achieve the goal. For example, we can use low-temperature sulfuric acid oxidation, so that the oxide film produced will be more meticulous and have higher hardness; It can also be oxidized with sulfuric acid and oxalic acid, so that a hard oxide film can be obtained under normal temperature conditions; Or AC oxidation coloring, the oxide film obtained by this method will be softer.

Of course, in practice, there are some other methods, and the effect obtained by different methods is somewhat different. Therefore, when we choose the aluminum oxidation processing method, we need to analyze according to the specific situation and choose the most suitable method.