Cold-rolled patterned aluminum alloy is a material produced by cold rolling technology to create periodic patterns on the surface of aluminum sheets. Its core process involves:
Using aluminum base materials (e.g., 1060, 3003, 5005 alloys)
Cold rolling deformation to form patterns via patterned rollers
Post-processing including annealing and surface treatments (anodizing, spraying)
Pattern depth ranges from 0.1–1.5mm, with customizable width and spacing.
（1）Cold Rolling Forming
Temperature Control: Rolling conducted below recrystallization temperature (≈250–400°C)
Roller Design: High-precision patterned rollers ensure dimensional consistency (±0.05mm tolerance)
Annealing Treatment: Low-temperature annealing (150–200°C) to eliminate work hardening and restore plasticity
（2）Surface Treatments (Optional)
Anodic Oxidation: Generates dense oxide film (3–15μm thickness) for enhanced corrosion resistance and aesthetics
Spraying: Applies polyurethane, fluorocarbon coatings for color and weather resistance
Electroplating: Deposits copper, nickel, etc., for conductivity or special texture
| Performance Category | Specific Parameters |
|---|---|
| Physical Properties | - Thermal conductivity: 167 W/(m·K) |
Coefficient of thermal expansion: 23.1×10⁻⁶/°C
Density: 2.7 g/cm³
Sheet thickness: 0.5–5mm (patterned areas thinned) |
| Mechanical Properties | - Tensile strength: ≥140 MPa (1060 alloy)
Yield strength: ≥80 MPa
Hardness: HV 30–80 (local hardness affected by patterns) |
| Corrosion Resistance | - Salt spray test: ≥1000 hours (post-anodizing)
pH stability: 2–12 |
| Surface Characteristics | - Pattern uniformity: ±5% deviation
Texture: Matte/satin finish
Slip resistance: 30–50% improvement |
| Pattern Type | Features | Typical Applications |
|---|---|---|
| Diamond Pattern | Regular arrangement for 3D visual effect | Building facades, elevator panels, furniture surfaces |
| Stripe Pattern | Parallel lines with customizable spacing/angles | Automotive trim, home appliances, packaging boxes |
| Wave Pattern | Continuous undulating texture for aesthetic and slip resistance | Flooring, sports equipment, ship decks |
| Grid Pattern | High-density square grid for enhanced wear resistance | Industrial machine guards, tool handles |
Processing Advantages:
No electroplating required: Natural matte finish reduces maintenance costs
Composite processing: Combines with anodizing/spraying for multi-functional integration (e.g., antimicrobial coatings)
High material utilization: Over 95% yield rate compared to traditional stamping processes
（1）Architecture & Decoration
Building Facades: Ultra-thin cold-rolled patterned aluminum sheets (0.8–1.2mm) for lightweight and aesthetic exterior walls
Interior Decoration: Elevator car walls, hotel lobbies, decorative elements with patterned textures
（2）Transportation
Automotive Components: Door trims, wheel covers with patterned grips for enhanced aesthetics and slip resistance
Marine Applications: Wave-patterned aluminum sheets for ship decks with improved weather resistance and impact resistance
（3）Industrial Equipment
Protective Covers: Grid-patterned sheets for machine guards and robotic enclosures (combining protection with heat dissipation)
Pipeline Supports: Diamond-patterned structures to reduce dust accumulation and simplify cleaning
（4）Consumer Products
Home Appliances: Patterned trim on refrigerators, washing machines for fingerprint-resistant surfaces
Sports Gear: Yoga mats, dumbbell handles with slip-resistant textures
