The biggest feature of galvanized aluminum-magnesium photovoltaic stents solar mounting brackets is that on the basis of galvanizing, alloying elements such as Al, Mg, Ni, and Cr are added. The zinc-aluminum-magnesium coating consists of primary zinc phase, zinc/zinc-magnesium binary eutectic phase and zinc-aluminum Magnesium ternary eutectic phase composition, so that a dense barrier is formed on the surface of the steel plate, which effectively prevents the penetration of corrosion factors. Greatly improve the corrosion resistance.
1. Corrosion resistance: The magnesium (Mg) component in the coating is beneficial to promote the formation of a very stable and well-structured fine protective film-simonkolleite (Zn 5 (OH) 8 Cl 2 · H 2 O), which is formed on the surface of the coating. Maintains a film-like covering layer, thereby exerting excellent corrosion resistance. The corrosion resistance of galvanized aluminum and magnesium is 5-12 times that of galvanized.
2. Self-repairing performance: In the processed section of the steel plate, the upper plating layer will dissolve and gradually cover the section, which promotes the formation of a stable protective film. In the initial process, red rust occurs on the exposed cut surface, but after the protective film forms a film-like covering on the cut surface, it prevents further corrosion from occurring. Coating products containing magnesium and aluminum elements will form a dense protective film on the incision over time due to the flow of magnesium, which increases corrosion resistance; the galvanized section only produces a less densely arranged and porous covering. After the test, the iron substrate at the incision was not covered.
3. Friction resistance: It has a low friction coefficient and stable friction characteristics, which is very beneficial to stamping and can reduce the wear of the coating, thereby reducing the picking defects of the parts.