Different Types of Aluminium Coil Sheets
1. Color coated aluminum coil
Technology core: Coating polyester, fluorocarbon and other organic coatings on the surface of the aluminum coil sheet , and forming a protective film through high-temperature curing.
Performance advantages: weather resistance is improved by 3-5 times (fluorocarbon coating can resist UV rays for 15 years), more than 100 color options, and enhanced acid and alkali corrosion resistance.
Typical applications: building curtain walls (such as the facade of the Burj Khalifa in Dubai), home appliance shells (refrigerator panels), advertising light boxes (light transmittance of 85%).
Cost structure: coating materials account for 20-30% of the total cost, and the price of fluorocarbon coating is 3 times that of ordinary polyester.
2. Insulation aluminum coil
Structural design: It is composed of aluminum coil and insulation materials such as polysurlyn, polyurethane and rock wool, with a thickness controlled at 1.5-5mm.
Technological breakthrough: thermal conductivity as low as 0.02W/(m・K), fire protection level up to B1, compressive strength ≥200kPa.
Market application: cold chain logistics carriage (insulation layer thickness affects transportation cost), industrial pipeline insulation (reducing heat loss by 40%), building energy-saving transformation (demand in the northern region accounts for 60%).
Price sensitive point: For every 10kg/m³ increase in insulation material density, the cost increases by 5-8%.
3. Coated aluminum coil
Special coatings:
① Self-cleaning coating (TiO₂ photocatalytic decomposition of organic matter)
② Antibacterial coating (silver ion sustained release technology, antibacterial rate > 99%)
③ Anti-slip coating (friction coefficient increased to above 0.8)
Innovation scenarios: hospital operating room wall panels (antibacterial coating), ship decks (anti-slip treatment), solar panel frames (anti-reflective coating).
Technical threshold: Nano-level coating uniformity control, high-precision coating equipment is required.
4. Embossed aluminum coil
Grain technology: orange peel grain (anti-fingerprint), diamond grain (enhanced friction), wood grain transfer (simulation degree up to 90%).
Performance optimization: compressive strength increased by 15-20%, surface area increased by 10% to enhance heat dissipation.
Consumer scenarios: elevator interior (anti-fingerprint), lamp reflector (diffuse reflection effect), high-end gift packaging (metallic gloss texture).
Processing cost: precision mold costs account for 40% of equipment investment.
5. Laminated aluminum coil
Film type: PE film (anti-scratch), PET film (high temperature resistance 120℃), composite film (both barrier and weldability).
Application value:
Building exterior wall: protective film can reduce 90% scratches during transportation and installation
Automotive parts: avoid direct contact of metal with mold during stamping
Electronic products: antistatic film protects precision components
Cost difference: the price of imported Japanese protective film is 2-3 times that of domestically produced, but the peeling force stability is increased by 50%.
6. Anodized aluminum coil
Process: sulfuric acid anodizing (most mature process), hard anodizing (film thickness > 50μm).
Technical parameters: The porosity is 15-20%. It can adsorb dyes or ceramic particles to improve functionality.
High-end market: aerospace fasteners (salt spray test > 1000 hours), rail transit conductor rails (wear resistance increased by 3 times).
Environmental challenges: wastewater treatment costs account for 15% of the total cost, and a matching RO reverse osmosis system is required.
Factors affecting price
Process complexity: For every additional coating layer, the cost increases by 8-12% (such as three-coat and two-bake process)
Raw material grade: The price difference between A00 aluminum ingot and recycled aluminum can reach 2,000 yuan/ton
Equipment depreciation: The value of a single imported precision coating machine exceeds 50 million yuan, with an annual depreciation rate of 15%
Environmental protection investment: VOCs treatment equipment investment accounts for 8-10% of total production capacity.
Haomei Aluminum has different types of aluminum coils. Welcome to inquire the aluminum coil price from us.
Original source: https://www.hm-alu.com/a/different-types-of-aluminium-coil-sheets.html