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Die cast lighting parts typically require additional surface treatment to enhance their aesthetics, durability, and functionality. The following is a detailed breakdown:
1. Improve anti-corrosion performance
Although aluminum alloys and zinc alloys commonly used in die-casting have certain anti-corrosion properties, they are prone to oxidation or corrosion when exposed to air.
Surface treatments such as anodizing, electrophoretic coating, powder coating, etc. can greatly enhance its corrosion resistance and extend the service life of outdoor lighting.
2. Improve the appearance and texture
The original die-casting surface is rough and may have defects such as burrs and cold lines.
Through polishing, sandblasting, wire drawing, spraying, electroplating and other processes, matte, glossy, metallic or imitation stone, imitation wood grain and other decorative effects can be achieved, enhancing the visual texture.
3. Enhance weather resistance
Outdoor landscape lighting fixtures need to withstand environmental impacts such as sunlight, rain, frost, and snow.
Spraying UV resistant coating or weather resistant paint on the surface can prevent fading, cracking, and surface aging.
4. Improve adhesion and subsequent processing performance
Before spraying or electroplating, pre-treatment such as degreasing, phosphating, or passivation is required to improve the adhesion between the coating and the metal surface, ensuring stable processing quality in the future.
5. Implement waterproof and sealing functions
Some lighting parts are designed with sealing surfaces or fitting areas, which require spraying waterproof paint or adding sealing layers to ensure compliance with IP ratings (such as IP65, IP67).
6. Improve wear resistance and scratch resistance
Hard anodizing or wear-resistant coating treatment can be carried out on easily touched or worn parts (such as lamp body shell, adjusting parts) to improve scratch resistance and wear resistance, and maintain a long-lasting appearance.
7. Implement brand customization or recognition functions
By using surface treatment methods such as screen printing, laser engraving, and hot stamping logos, brand logos or patterns can be added to enhance product recognition and commercial value.
8. Adapt to different environmental needs
Special scenarios such as coastal areas, high temperatures, humidity, or industrial zones require special anti-corrosion or salt spray treatment to ensure stable operation of lighting parts in harsh environments.
