Views: 0 Author: Site Editor Publish Time: 2025-08-01 Origin: Site
In the rapidly expanding photovoltaic (PV) industry, the performance of ground mounting systems directly impacts the longevity and efficiency of solar farms. Zinc-aluminum-magnesium (Zn-Al-Mg) alloys have emerged as a game-changing material for such systems, offering a unique combination of properties that address the core challenges of outdoor exposure and large-scale deployment. Their advantages can be summarized as follows:
This resilience is critical for PV ground mounts, which operate in diverse extreme conditions—coastal areas with high salt levels, deserts with extreme temperature fluctuations, wetlands with persistent humidity, and industrial zones with air pollutants. By resisting corrosion, Zn-Al-Mg extends the bracket lifespan to 30+ years, far exceeding the 20-year average of galvanized steel.
A standout feature of Zn-Al-Mg alloys is their ability to autonomously repair surface damage. When scratches or cuts occur during installation, transportation, or due to 风沙 (sandstorms), magnesium ions in the alloy migrate to the exposed area, reacting with moisture and oxygen to form a new protective hydroxide layer. This self-healing mechanism effectively prevents "edge corrosion"—a common flaw in traditional materials where processed or damaged edges degrade rapidly—reducing maintenance needs and avoiding cascading corrosion from minor injuries.
Lower transportation costs (more units per shipment);
Easier installation (reduced reliance on heavy machinery and labor);
Reduced load on ground foundations, making it suitable for soft soils or ecologically sensitive areas.
The alloy’s high ductility allows seamless processing via stamping, bending, and welding without compromising performance. Unlike galvanized steel, which requires post-weld anti-corrosion treatments, Zn-Al-Mg maintains its protective properties even after welding. This adaptability enables flexible integration into diverse bracket designs (e.g., tracking systems, fixed-tilt structures), lowering manufacturing complexity and costs.
While Zn-Al-Mg alloys may have a slightly higher initial material cost than galvanized steel, their total lifecycle expenses are significantly lower. Extended lifespan (30+ years vs. 20 years), reduced maintenance (minimal rust treatment), and savings in transportation/installation collectively offset upfront investments. Real-world projects show that large PV farms using Zn-Al-Mg brackets achieve ~25% lower total costs over a 25-year period.
