Although the aluminum alloy doors and windows in Guangdong Province have strong corrosion resistance, the influence of air, climate and other factors still poses a great threat to Guangdong aluminum alloy doors and windows. The main reasons are the environmental humidity and air pollution.
1. Air humidity
It is easy to understand that Guangdong aluminum alloy doors and windows are exposed to the humid air for a long time, and the moisture in the air will condense into liquid water droplets when cooled, thus forming corrosion galvanic cells on the surface of Guangdong aluminum alloy doors and windows, and accelerating the electrolytic corrosion of door and window hardware. Therefore, the air humidity is the main inducement. When the humidity reaches a certain critical value, there will be water film forming, so the corrosion of Guangdong aluminum alloy doors and windows will be inevitable.
Therefore, it is very important for us to keep the doors and windows dry, as well as the ventilation and drying of the indoor environment. In case of hot and humid weather, keep good ventilation, but also be diligent in wiping to ensure that doors and windows are dry.
In hot and humid summer, with the increase of temperature, the corrosion of aluminum alloy doors and windows in Guangdong will be accelerated. At the same time, due to the large temperature difference between day and night, a large amount of water vapor will condense at night, which will further accelerate the corrosion process. The longer the damp time, the more serious the corrosion of Guangdong aluminum alloy doors and windows. Generally speaking, when the temperature difference between day and night is greater than 6 ℃ and the temperature changes in the range of 5 ℃ - 50 ℃, as long as the relative humidity reaches 65% - 75%, condensation will appear.
3. Air pollution
In recent years, environmental pollution is becoming more and more serious, and the air is full of PM2.5, sulfide and corrosive media. Acid and alkali substances will be adsorbed on the aluminum alloy doors and windows of Guangdong Province, causing acid-base corrosion to hardware. At the same time, because of air pollution, acid rain frequently occurs, which is a threat to aluminum alloy doors and windows in Guangdong. In addition to acid-base corrosion, carbon particles and metal powder in the air adsorbed on the surface of aluminum doors and windows will form surge with Guangdong aluminum alloy doors and windows, causing electrolytic corrosion.
Therefore, Guangdong aluminum alloy door and window manufacturers' suggestions, in addition to ensuring that the doors and windows are clean and dry, we also need to take good care of the environment from ourselves.