Since zinc is not easy to change in dry air, and can produce a basic zinc carbonate film in a humid environment, this film can protect internal parts from corrosion damage, even if the zinc layer is damaged by some factor. In some cases, zinc and steel combine over time to form a microbattery, with the steel matrix protected as a cathode. Summary Electrogalvanizing has the following characteristics:
- Good corrosion resistance, meticulous and uniform combination, not easy to be entered by corrosive gas or liquid.
- Because the new layer is relatively pure, it is not easy to be corroded in an acid or alkali environment. Effectively protect the steel body for a long time.
- After passivation by chromic acid, it can be used in various colors, which can be selected according to customers’ preferences. The galvanizing is elegant and decorative.
- The zinc coating has good ductility and will not fall off easily during various bending, handling and impact.