When the sheet metal cabinet is selected for outdoor LED display, the possibility of rust exists, but this risk can be reduced through reasonable material selection, design and maintenance. Here is a detailed analysis of this issue:
Analysis of the causes of rust
1. The material itself: If the selected sheet metal material is of poor quality, it contains more impurities and defects, and it is easy to rust during use.
2. Environmental factors: Outdoor LED displays are usually exposed to various climatic conditions, such as high temperature, humidity, acidic or alkaline environments, as well as corrosive gases such as acid rain and salt spray, which will accelerate the corrosion rate of sheet metal cabinets.
3. Process problems: If the processing process is not improper, such as the surface treatment is not completed or the cleaning is not thorough, the protective layer on the surface will not be enough to resist corrosion.
Precautionary measures
1. Choose high-quality sheet metal materials: ensure that the sheet metal materials have good corrosion resistance and rust resistance.
2. Strengthen surface treatment: epoxy asphalt, chlorinated rubber, acrylic polyurethane, fluorocarbon and other surface treatment of sheet metal cabinets to improve the corrosion resistance and rust resistance of the surface.
3. Choose the right coating: use high-performance coatings such as epoxy zinc-rich paint to improve the anti-corrosion performance of sheet metal cabinets.
4. Regular inspection and maintenance: Regularly inspect the sheet metal cabinet, find rust and deal with it in time, and strengthen maintenance, such as using rust inhibitors or rust inhibitors for maintenance.
Rust treatment method
1. For small areas of rust, you can use the method of hand polishing, using dry sandpaper or steel wool balls to polish and remove rust.
2. For large areas of rust, chemical cleaning methods can be used, using rust removers or acidic solutions for cleaning, and then rinsing with water.
3. After treating the rust, carry out anti-corrosion treatment, such as applying anti-rust paint or anti-rust agent to prevent rust again.
To sum up, the selection of sheet metal cabinets for outdoor LED displays will rust, but through reasonable material selection, design, processing and maintenance measures, the risk of rust can be effectively reduced.
In practical application, corresponding measures should be taken according to the specific situation to ensure the corrosion resistance and service life of the sheet metal cabinet.