Fin Stock Aluminum Foil
Aluminum fin stock plays a pivotal role in the efficiency and performance of heat exchange systems across various industries. As a leading manufacturer and wholesaler, Huawei Aluminum is committed to delivering high-quality fin stock solutions tailored to diverse applications. This article delves into the intricacies of aluminum fin stock, its types, specifications, applications, and the advantages of choosing Huawei Aluminum as your trusted supplier.
Understanding Aluminum Fin Stock
Aluminum fin stock refers to aluminum coils specifically designed for use in heat exchangers, such as those found in car radiators, heat shields, and HVAC (Heating, Ventilation, and Air Conditioning) systems. Manufactured primarily from 1000, 3000, and 8000 series aluminum alloys, fin stock is prized for its lightweight nature, formability, and corrosion resistance. These properties make it an ideal material for enhancing heat transfer efficiency in various applications.
Types of Aluminum Fin Stock
At Huawei Aluminum, we offer two primary categories of fin stock to cater to varying industry needs:
1. Bare Aluminum Fin Stock
Bare aluminum fin stock is untreated aluminum foil used in heat exchangers. Its natural properties provide excellent thermal conductivity and corrosion resistance, making it suitable for applications where additional coatings are unnecessary.
Specifications:
| Alloy | Temper | Thickness (mm) | Width (mm) | Tensile Strength (MPa) | Elongation (%) | Erichson (IE, mm) |
|---|---|---|---|---|---|---|
| 1100 | O | 0.08–0.2 | 100–1400 | 80–110 | ≥27 | ≥6.0 |
| 1200 | H22 | 0.08–0.2 | 100–1400 | 100–135 | ≥22 | ≥5.5 |
| 3102 | H24 | 0.08–0.2 | 100–1400 | 115–145 | ≥20 | ≥5.0 |
| 8011 | H26 | 0.08–0.2 | 100–1400 | 125–160 | ≥10 | ≥4.5 |
| 8006 | H18 | 0.08–0.2 | 100–1400 | ≥160 | ≥1 | - |
Note: Special specifications can be produced as per customer's requirements.
2. Hydrophilic Aluminum Fin Stock (Precoated Aluminum Fin Stock)
Hydrophilic aluminum fin stock undergoes a specialized surface treatment, applying a hydrophilic layer that allows condensate to spread quickly, preventing the formation of water droplets. This enhances the heat exchange area and improves the cooling and heating rates, effectively reducing airflow noise caused by water condensation.
Coating Structure:
The hydrophilic coating typically consists of:
- Corrosion-resistant inorganic resin layer: Protects the aluminum substrate from corrosion.
- Hydrophilic organic resin layer: Enhances water spreading, improving heat transfer efficiency.
Performance Benefits:
- Enhanced Corrosion Resistance: The coating provides a protective barrier against environmental factors, prolonging the lifespan of the heat exchanger.
- Improved Heat Transfer Efficiency: By preventing water droplet formation, the effective heat exchange area increases, boosting efficiency by approximately 5%.
- Noise Reduction: Eliminating water droplets minimizes airflow resistance, reducing operational noise.
Coating Performance Metrics:
| Test Item | Testing Method | Result |
|---|---|---|
| Surface Appearance | Visual inspection | Golden, blue, black |
| Film Thickness | Calculated from weight of film | 2–3 μm |
| Initial Hydrophilicity | Direct measurement | ≥8 mm |
| Salt-Spray Resistance | JIS-Z-2371 (5% NaCl at 35°C for 72 hours) | ≥R.NO9.5 |
| Heat Resistance | A: 200°C for 10 mins B: 400°C for 10 mins | A: No changes B: Light brown |
| Oil Resistance | Immersion in press oil for 24 hours, followed by peel test | No delamination |
| Adhesive Force | A: 180° bending B: Peel test | No peeling |
Note: The hydrophilic angle is a measure of hydrophilicity, with lower angles indicating better performance.
Applications of Aluminum Fin Stock
Aluminum fin stock is integral to various applications, including:
- Household Air Conditioners: Enhances the efficiency of evaporators and condensers.
- Refrigerators: Improves the performance of cooling coils and heat exchangers.
- Automotive Air Conditioners: Used in car radiators and HVAC systems to ensure optimal thermal management.
- Industrial Heat Exchangers: Applied in various industrial processes requiring efficient heat transfer.
The choice between bare and hydrophilic fin stock depends on specific application requirements, environmental conditions, and desired performance characteristics.
Why Choose Huawei Aluminum?
As a reputable manufacturer and wholesaler, Huawei Aluminum offers:
- High-Quality Products: Adherence to stringent quality control measures ensures products meet international standards.
- Customization: Ability to produce fin stock in various alloys, tempers, thicknesses, and widths to meet specific customer requirements.
- Global Reach: Supplying products to over 40 countries, including the United States, Germany, and Japan, showcasing our capability to meet diverse market needs.
- Technical Expertise: A team of professionals dedicated to continuous improvement and innovation in aluminum
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