1. Continuous upgrade of material performance
Trend of high-strength alloy substitution
As the size of photovoltaic modules increases, the strength of 6063-T5 aluminum profiles has gradually failed to meet the load requirements of ultra-large modules. The application ratio of 6005/6061 aluminum alloys will increase significantly, and its tensile strength can reach more than 260 MPa, which is suitable for large-span brackets and frame structures.
Surface treatment technology innovation
Photovoltaic projects in coastal high-salt fog areas will promote the popularization of the "anodization + nano-coating" composite process, and the thickness of the oxide film will increase from 10μm to 25μm, combined with the hydrophobic coating to extend the corrosion resistance life to 40 years.
2. In-depth expansion of application scenarios
Breakthrough in floating photovoltaic systems
6063-T6 aluminum profiles have passed marine-grade passivation treatment (chromate conversion film thickness ≥3μm), becoming the mainstream material for offshore floating photovoltaic platforms, and its salt spray corrosion resistance meets the ASTM B117-2000 standard.
Agricultural photovoltaic cross-border integration
Customized hollow aluminum brackets realize dynamic adjustment of component spacing, and the transmittance range reaches 15-85%, taking into account the lighting needs of crops and power generation efficiency.
3. Cost control and global supply chain reshaping
Regional capacity layout is accelerated
The expansion of electrolytic aluminum production capacity in Southeast Asia will reduce the comprehensive cost of photovoltaic aluminum profiles by 8-12%, but it is necessary to deal with the risk of US 301 tariff increase.
Thin-wall lightweight technology breakthrough
The frame wall thickness is reduced from 1.8mm to 1.2mm through liquid die forging process, the component weight is reduced by 18% while maintaining structural strength, and the logistics cost is reduced by 23%.
