Aluminium Coil for Channel Letter
The performance of the aluminum coil for channel letter is determined by the alloy composition and processing technology.
Common aluminum alloy series
Pure aluminum coil (1000 series)
Representative grades: 1060, 1100
Features: Purity ≥ 99.6%, soft texture and easy processing, suitable for fine engraving and complex curved surface modeling. For example, 1060 aluminum coil can achieve 0.1mm hair-level lines through laser cutting.
Application scenarios: indoor decorative characters, signboards, small art installations.
Aluminum-manganese alloy coil (3000 series)
Representative grades: 3003, 3004
Features: This series contains 1.0-1.5% manganese, featuring excellent anti-rust performance and good weldability. 3003 aluminum coil can be bent to make three-dimensional characters, and the surface is uniform silver-gray after anodizing.
Application scenarios: outdoor billboards, building curtain wall characters.
Aluminum-magnesium alloy coil (5000 series)
Representative grade: 5052
Features: Contains 2.5% magnesium, high strength and strong corrosion resistance, suitable for structural support of large-sized art characters. For example, 5052 aluminum coil can withstand a tensile strength of 500MPa.
Application scenarios: large sculpture characters, landmark signs.
Aluminum-magnesium-silicon alloy coil (6000 series)
Representative grades: 6061, 6063
Features: heat-treated reinforced alloy, balanced processing performance and weather resistance. After anodizing, 6061 aluminum coil can present stable colors such as gold and black, and the thickness of the oxide film can reach 25μm.
Application scenarios: high-end commercial space art characters, outdoor landscape characters.
Key technical requirements for channel letter aluminum strips
Thickness and flatness
Thickness range: 0.5-3mm (conventional), 0.3mm ultra-thin aluminum coil can be used for ultra-fine engraving.
Flatness standard: wave degree per meter ≤3mm, ensure cutting without deformation.
Surface treatment process
Anodizing: Generate 3-25μm oxide film, salt spray corrosion resistance >1000 hours, colors include silver, champagne gold, titanium, etc.
Fluorocarbon baking varnish: PVDF coating is used, weather resistance is up to 20 years, and full color customization of RAL color card is supported.
Wire drawing: straight wire, random pattern, snowflake pattern and other processes to enhance the metal texture.
Processing performance
Bending radius: minimum can reach 1.5 times the thickness of the plate (such as 2mm aluminum coil can be bent into a 3mm radius).
Welding requirements: 3003 alloy can be welded by TIG, and the weld strength is ≥85% of the parent material.
Typical applications
Outdoor large-scale signs
Material selection: 6061-T6 aluminum coil (thickness 3mm) + fluorocarbon paint (color RAL 7035).
Technology highlights: laser cutting + seamless welding, the surface is brushed to improve scratch resistance.
Indoor art installations
Material selection: 1060 aluminum coil (thickness 1mm) + anodized gold.
Technology highlights: chemical etching + manual polishing to achieve 0.2mm fine hollowing.
Commercial space signboards
Material selection: 3003 aluminum coil (thickness 2mm) + polyester paint (customized gradient color).
Technology highlights: CNC bending + UV printing to achieve curved three-dimensional effects.
Haomei Aluminum is one of the channel letter coil suppliers in China. Welcome to tell me your specific requirements. I let our sales send quotation to you.
Original source: https://www.aluminumstrip24.com/news/aluminium-coil-for-channel-letter.html
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