Generally speaking, Solar frame aluminum alloy profile must be exposed to the sun, and severe weather such as rain, wind, snow and hail will also pose a threat to solar power plants. Therefore, the quality standards of solar panel aluminum frames are higher than those of general industrial aluminum profiles.
First of all, the purchase of raw materials is very strict, and the content of each element must meet the established industry standards. The content of other elements should also be within the range stipulated by the state, and the purity of the aluminum water should be high. In addition, recycled materials cannot be used, that is, anodized materials cannot be remelted. In order to avoid small black spots, burrs or dust inclusions on the surface of the profile during the extrusion process, the surface of the profile will be black due to unqualified mixing.
The extrusion die also needs to be carefully polished, especially the decorative surface of theSolar frame aluminum alloy profile, to avoid black lines and welding marks. Especially after extrusion quenching, the artificial aging time is well controlled, which largely determines whether the hardness of the aluminum frame material meets the standard. The hardness of aluminum profile is generally above 8hw, while the hardness of solar frame aluminum profile is 12hw.
