Ultraviolet rays can cause damage to the surface of FRP cable trays
I. Introduction. With the development of science and technology, FRP cable tray is becoming more and more common in our daily life. It has excellent corrosion resistance, weather resistance, insulation, light weight and high strength, and is widely used in electric power, communications, transportation, construction and other fields. However, with the increase of use time, the destructive effect of ultraviolet rays on the surface of FRP cable tray gradually appears. This article will analyze the impact of ultraviolet rays on the surface of FRP cable tray, and analyze its causes and preventive measures.
Second, the destructive effect of ultraviolet rays on the surface of FRP cable tray.
1.Ultraviolet rays can cause cracks and spalling on the surface of FRP cable trays. This is due to the fact that ultraviolet rays can destroy the molecular structure of the resin in FRP, causing it to lose its original strength and toughness. At the same time, ultraviolet radiation will also cause oxidation on the surface of the bridge, resulting in a thick oxide film, which affects its aesthetics and performance.
2.Ultraviolet rays can also accelerate the aging process of FRP cable trays. When exposed to ultraviolet rays for a long time, the surface of the bridge will gradually lose its luster and become rough and uneven. In addition, ultraviolet rays can also cause cracks and deformation on the surface of the bridge, which seriously affects its service life.
3. Cause analysis.
1.The FRP material itself is defective. For example, too high or too low resin content, uneven filler, etc., can affect its weatherability and UV resistance.
2.The operation is not strictly in accordance with the process requirements during the processing process. For example, improper temperature control, insufficient pressure, etc., can lead to a decrease in the surface quality of the bridge.
3.The use environment is harsh. For example, environmental factors such as high temperature, high humidity, and salt spray will accelerate the aging process of FRP cable tray.
4. Preventive measures.
1.Choose high-quality FRP materials. In the procurement process, key indicators such as resin content and fillers should be strictly controlled to ensure that the quality of materials meets the requirements.
2.Processing is carried out in strict accordance with the process requirements. In the production process, process parameters such as temperature and pressure should be strictly controlled to ensure that the surface quality of the bridge meets the standards.
3.Strengthen the maintenance during use. Clean and maintain the surface of the bridge regularly to avoid direct sunlight and high temperature and humidity environments.
V. Conclusions. The destructive effect of ultraviolet rays on the surface of FRP cable tray cannot be ignored. In order to prolong the service life of the bridge and improve its safety, we should take effective precautions to reduce the damaging effect of UV rays on its surface. At the same time, the bridge that has been aging should be replaced or repaired in time. Only in this way can we ensure that FRP cable tray can maintain stable and reliable operation under various harsh environmental conditions, bringing more convenience and safety to our life and production.