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The necessity of aluminum alloy sheet spraying is mainly reflected in the following aspects:
1. **Improvement of corrosion resistance and abrasion resistance**: Although aluminum alloy itself has a certain degree of corrosion resistance, its surface is susceptible to corrosion and abrasion in specific environments, reducing its service life and performance. Through the spraying process, a protective film can be formed on the surface of aluminum alloy, effectively improving its corrosion and wear resistance.
2. **Enhancement of aesthetics**: The spraying process not only provides protection, but also increases the aesthetics of the aluminum alloy sheet. By spraying different colors of paint, it can make the appearance of aluminum alloy sheet more diversified to meet the decorative needs of different occasions.
3. **Improve weather resistance**: When used outdoors, aluminum alloy panels need to face all kinds of bad weather, such as UV irradiation and acid rain. Spraying fluorocarbon coatings and other high-performance coatings can greatly improve the weather resistance of aluminum alloy panels, so that they maintain their color and luster for a long time and are not easy to fade.
4. **Extend service life**: The spray coating can protect the aluminum alloy sheet from the erosion of the external environment, thus extending its service life.
5. **Provide insulation and heat dissipation properties**: Some sprayed materials can provide additional insulation and heat dissipation properties, which are important for applications that require these characteristics.
6. **Improve surface properties**: The coating process can improve the surface properties of aluminum alloy sheet, for example, by sandblasting to improve surface roughness and enhance coating adhesion.
7. **Protection and decoration**: The spray coating layer not only protects the aluminum alloy sheet from corrosion, but also provides a variety of colors and texture effects, playing a decorative role.
To sum up, the necessity of spraying aluminum alloy sheets lies in its ability to provide protection, enhance aesthetics, extend service life, and improve surface performance and other aspects of the advantages.
