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What are the differences in wear resistance and corrosion resistance of aluminum boxes with different surface treatment processes?

Publish Time: 2024-12-16
In the world of luggage, aluminum boxes stand out for their sturdiness and durability, and the surface treatment process is like putting on "armor" of different textures for aluminum boxes, which greatly affects their wear resistance and corrosion resistance.

Anodizing process is a classic choice for aluminum box surface treatment. After this process, a hard and dense oxide film is formed on the surface of the aluminum box, and the hardness is greatly improved, which is like covering the aluminum box with a transparent "hard shell". In terms of wear resistance, daily scratches and frictions are not easy to leave obvious marks, and even if they are repeatedly rubbed against the rough desktop, the appearance of the box can be preserved to the greatest extent. In terms of corrosion resistance, this oxide film naturally has good chemical stability, which can effectively resist sweat and mild acid and alkali liquid erosion. When traveling outdoors, it is difficult to penetrate this barrier and hurt the "muscles and bones" of the aluminum box when acid rain occasionally falls.

The powder coating process gives the aluminum box a different look and performance. The fine powder coating is evenly attached and then cured at high temperature, just like wrapping the aluminum box with a thick "colorful coat". Wear resistance is manifested in the ability to withstand a certain degree of sand and stone impact. In outdoor adventure scenes, gravel splashes and hits, and the coating can buffer and disperse the impact force and reduce wear damage. Corrosion resistance is due to the ability of the coating to isolate air and water vapor. In a humid and salty environment at the seaside, it can prevent chloride ions from penetrating and prevent aluminum boxes from rusting and corrosion. Aluminum boxes placed in seaside homestays for a long time can also be safe.

The surface of the aluminum box made by electroplating technology is shiny and eye-catching, and it is mostly used in styles that pursue exquisite appearance. Chrome plating, zinc plating and other electroplating layers show bright performance in the early stage of wear resistance, and it is not easy to leave marks with slight wiping, but compared with the first two, the coating may peel off after long-term frequent friction. The anti-corrosion performance varies depending on the metal of the coating. The zinc coating has a good anti-corrosion effect on steel parts and can indirectly protect the internal structure of the aluminum box; the chrome coating is better at preventing daily oxidation and discoloration, and can keep the aluminum box shiny when encountering car exhaust and dust pollution during urban commuting.

It can be seen that anodizing focuses on comprehensive protection; powder coating uses a thick protective layer to resist impact erosion; electroplating focuses on short-term protection of appearance. Consumers can choose the process according to the purpose of the aluminum box to make the best use of it and make the aluminum box last forever.
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