Why aluminum alloy profiles for photovoltaic brackets are better than steel
Photovoltaic supports select suitable profiles according to specific load-bearing requirements. The surface of industrial aluminum profiles is anodized, which has good anti-corrosion effect and does not have much requirements for the environment in which it is used. Today, let's talk about why aluminum alloy profiles for photovoltaic brackets are better than steel?
In order to better realize the installation and fixation of solar photovoltaic panels, it is more reliable to use higher quality brackets for processing, which is naturally the basis for obtaining better quality. So what are the advantages of aluminum alloy brackets compared to steel brackets?
1. Lightweight
Aluminum density 2.7kg/dm3＜iron density 7.9kg/dm3
For the roof photovoltaic support, in addition to the requirements of the photovoltaic system itself, it is also necessary to consider the bearing capacity of the roof. For houses with poor bearing capacity, such as dilapidated old houses, wooden houses with wooden structures, etc., the weight of stainless steel photovoltaic brackets is 2-3 times that of aluminum alloy photovoltaic brackets, and the risks that houses need to bear are many times different.
2. Resist natural corrosion
When aluminum is placed in the air, a dense aluminum oxide protective layer can be formed on the surface, which can prevent further oxidation of aluminum. For areas with humid air, such as the seaside, the use of aluminum photovoltaic brackets can ensure the service life of the photovoltaic system.
3. Anti-galvanic corrosion
When the steel bracket is in contact with the aluminum photovoltaic panel frame, the aluminum photovoltaic panel frame is prone to galvanic corrosion, and the aluminum bracket avoids this phenomenon.
4. Balance voltage
Aluminum has excellent electrical conductivity, so it can better conduct the weak current generated by various reasons in the photovoltaic support system.
5. Easy to form
Using different dies, aluminum profile products with different cross-sectional shapes can be easily obtained through the extrusion process.
6. Easy to process
Aluminum profiles can be easily processed into the required specifications through sawing, drilling, punching, folding and other processes, and the energy consumption of the processing process is also much lower than that of steel.Especially reflected in the fixtures used inmetal roof solar systems.
7. Low temperature resistance
Ordinary steel, especially the welded area, is brittle and brittle in low temperature environments, while the strength of aluminum increases.
8. Eco-friendly and easy to recycle
Reshaping of recycled aluminium consumes only 5% of the energy used in the original process from ore to profile. In many economically developed countries, such as Japan, the preferred material is aluminum alloy.
The above is the comparison of aluminum alloy profiles and steel for photovoltaic brackets. In order to make the aluminum alloy photovoltaic support fully play a better function, the geography, climate and solar resource conditions of the construction site should be combined in the selection to ensure that the solar cells can be carried out in a certain direction and distribution.