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With the application of solar energy, the use of solar street lights has become increasingly widespread. Since solar street lights operate outdoors, there are higher requirements for the support poles to prevent rust and corrosion, which could reduce structural strength. Therefore, corrosion protection treatments for solar street light poles are essential. What methods are available for the corrosion protection of solar street light poles? Below, the Century Sunshine Lighting editor will provide a detailed introduction.
1. Surface Spray Plastic Treatment
The first effective method is to use hot-dip galvanizing for the poles. The zinc layer from hot-dip galvanizing bonds firmly with the steel pole, and the zinc layer does not peel off, providing excellent rust resistance. After that, a spray plastic treatment is applied to the surface of the pole, with colors specified by the customer. The plastic used is high-quality outdoor plastic, which can extend the rust resistance of the pole for over ten years.
2. High-Temperature Plastic Coating
This is a new technology that has developed in recent years. The basic working principle involves melting nylon with flame heating and spraying it onto the prepared surface of the workpiece to create the desired coating layer.
3. Powder Electrostatic Spray Coating
Powder electrostatic spraying refers to powder that carries a negative charge, being uniformly absorbed onto the workpiece surface under the influence of electrostatic force and compressed air. This method allows for a more uniform and smoother surface on the poles. Of course, electrostatic spraying can be conducted using both paint and plastic spraying methods.
4. Hot-Dip Galvanizing Treatment
This process involves immersing pre-treated workpieces into molten zinc to form a zinc and zinc-iron alloy coating on the surface, with a zinc layer thickness between 65-90um. The zinc layer on galvanized parts should be uniform, smooth, without drops or excess clumps, and should bond firmly with the steel pole, ensuring no peeling or bulging occurs.
The above methods for corrosion protection of solar street light poles have been shared here. In addition to preventing corrosion, attention must also be paid to the waterproof and theft-proof features of solar street light poles to prevent water ingress that could lead to electrical failures.
