Why can 304 stainless steel uv panel resist UV attack for a long time?
Publish Time: 2024-12-26
The reason why 304 stainless steel uv panel can resist UV attack for a long time is mainly due to its material properties and surface treatment technology.
1. Material properties
304 stainless steel: 304 stainless steel is a commonly used austenitic stainless steel with good corrosion resistance, high temperature resistance and mechanical properties. Its composition is rich in chromium and nickel, which can form a dense chromium oxide film on the surface, which can resist a variety of corrosive media, including ultraviolet rays.
Corrosion resistance: The corrosion resistance of 304 stainless steel enables it to maintain good performance when exposed to UV environment, and will not cause degradation or aging of the material due to UV rays.
2. Surface treatment
Anti-oxidation coating: An anti-oxidation coating is applied to the surface of 304 stainless steel plate, which can further improve its ability to resist UV rays. Common coating materials include silicone resin, polyurethane, fluorocarbon resin, etc., which have excellent weather resistance and UV resistance.
Chrome plating: A chrome plating layer is formed on the surface of 304 stainless steel through chrome plating. This chrome plating layer not only improves the gloss of the surface, but also enhances the UV resistance.
Light stabilizer: Light stabilizers (such as UV absorbers and antioxidants) are added to the coating. These additives can absorb UV rays and convert them into harmless heat, thereby protecting the material from UV damage.
3. Physical structure
Multi-layer structure: Some UV-resistant panels adopt a multi-layer composite structure, which includes not only a 304 stainless steel substrate, but also one or more layers of protective layers with UV protection. This structure can provide multiple protections and enhance its UV resistance.
Microstructure design: Special textures are formed on the surface through microstructure design (such as micropores, microgrooves, etc.). These textures can scatter and reflect UV rays and reduce the direct exposure of UV rays to the material.
4. Chemical stability
Chemical inertness: 304 stainless steel has high chemical inertness and is not easy to react with chemicals in the environment, which enables it to maintain stable performance under long-term exposure to UV rays and other environmental factors.
Oxidation resistance: The chromium element in 304 stainless steel forms a chromium oxide film on the surface, which can effectively prevent further oxidation reactions, thereby protecting the material from degradation caused by ultraviolet rays.
304 stainless steel uv panel can effectively resist the invasion of ultraviolet rays through its material properties, surface treatment technology, physical structure and chemical stability. These characteristics enable it to maintain good performance in various outdoor environments and is suitable for applications such as buildings, outdoor furniture, billboards, etc. that require long-term exposure to sunlight.
