Why does the heatsink needs Anodizing surface treatment

      Aluminum is a material with good thermal conductivity, so it is mostly used in the production of heatsinks. Aluminum heatsink is generally called aluminum radiator. All aluminum profiles here refer not only to aluminum, but also to aluminum alloy products. Aluminum has soft material and poor corrosion resistance, so some necessary surface treatment will be carried out for aluminum profile heatsink. Anodizing is a general surface treatment method.

       Anodizing usually refers to the oxidation of sulfuric acid, which is the process of forming an oxide film on aluminum products under the corresponding electrolyte and specific process conditions. This oxide film improves the surface hardness and wear resistance of aluminum alloy, thus expanding the application range and prolonging the service life of aluminum heatsink.

Why heatsink needs anodizing surface treatment:

1. The high thermal conductivity of aluminum profile is the decisive factor to maintain goodthermal function and the most ideal medium for heat conversion. It is characterized by less time, fast heating, high efficiency, lightness, cleverness and easy processing. For heatsinks of the same specification, the weight of aluminum profile is 1 / 3 of that of steel radiator.

2. Alumina formed after aluminum oxidation is the best protective film, which can avoid its further oxidation. Therefore, it has novel and beautiful appearance and strong decoration.