Advanced Aluminium Anodizing
What is Anodizing?
"Transforming aluminium surfaces through advanced electrolytic passivation for superior performance and aesthetics"
Anodizing is an advanced electrolytic passivation process that significantly increases the thickness of the natural oxide layer on aluminium surfaces. This electrochemical treatment transforms the metal surface into a durable, corrosion-resistant, and aesthetically pleasing finish. The process derives its name from the fact that the aluminium part being treated forms the anode electrode in the electrical circuit, making it an "anodizing" process.
GAL's Advanced Anodizing Capabilities
High-Capacity Processing
Our state-of-the-art surface treatment division processes up to 75 MT per month with precision and consistency, ensuring reliable delivery schedules for large-scale projects.
Dual Anodizing Technologies
We offer both natural anodizing for protective applications and SnSO4-based color anodizing for decorative finishes, providing comprehensive surface treatment solutions.
Permanent Sealing Systems
Advanced hot and cold sealing processes ensure permanent protection and color retention, extending the lifespan of anodized components significantly.
Precision Thickness Control
Precise thickness control from 5 to 25 microns allows for customized protection levels based on specific application requirements and environmental conditions.
Comprehensive Component Size Range
Our advanced anodizing facilities accommodate an extensive range of component sizes, from precision small parts to large architectural elements. We can process aluminium extrusions ranging from compact 10mm components to substantial 2.7-meter profiles, ensuring versatility for diverse industrial applications.
Multiple Color Options
Available in premium finishes including gold, silver, natural, and black anodizing to meet aesthetic and functional requirements.
Flexible Sizing
Process components from 10mm to 2.7 meters, accommodating both precision parts and large architectural elements.
High-Volume Capacity
75 MT/month processing capacity ensures reliable delivery schedules for large-scale industrial projects.
Precision & Complete Traceability
Quality assurance and traceability are fundamental to our anodizing operations. Each processed package features computerized barcode labeling that provides comprehensive tracking information including section number, bundle number, precise weight, piece count, and lot number. This advanced tracking system ensures complete accountability throughout the production process and enables efficient quality control and customer service.
Technical Specifications
Specification | Details |
---|---|
Processing Capacity | 75 MT per month |
Thickness Range | 5 to 25 microns |
Component Size Range | 10mm to 2.7 meters |
Anodizing Types | Natural & SnSO4-based color anodizing |
Sealing Methods | Hot sealing & Cold sealing |
Available Colors | Gold, Silver, Natural, Black |
Quality Standards | ISO 9001:2015, ASTM B580 |
Flexible Service Options
- Customer-Supplied Parts Processing: We provide anodizing services for components manufactured elsewhere, offering flexibility for your supply chain management.
- Integrated Manufacturing Services: Complete solution including extrusion and anodizing for components manufactured at GAL facilities, ensuring seamless quality control.
- Custom Finishing Solutions: Tailored anodizing processes to meet specific performance, aesthetic, and environmental requirements.
- Rapid Turnaround Options: Expedited processing available for urgent projects without compromising quality standards.
Comprehensive Benefits of Anodizing
Superior Protection
Dramatically improved corrosion and wear resistance, extending component lifespan in harsh environments.
Enhanced Bonding
Superior adhesion for paint primers and adhesives compared to bare metal surfaces, improving coating durability.
Aesthetic Excellence
Vibrant colors through dye absorption in porous coatings and elegant light effects with transparent layers.
Functional Performance
Prevents galling on threaded components and creates dielectric films for electrolytic capacitors.
Environmental Resistance
Excellent resistance to UV radiation, weathering, and chemical exposure for outdoor applications.
Maintenance Reduction
Low-maintenance surface that retains appearance and performance over extended periods.
Material Compatibility & Limitations
While anodizing is primarily optimized for aluminium alloys, the process can also be successfully applied to titanium, zinc, magnesium, niobium, and tantalum. However, it's important to note that anodizing is not suitable for iron or carbon steel, as oxidation in these ferrous metals results in flaking rust rather than the stable, adherent protective layer achieved with non-ferrous metals.
Selecting the Optimal Aluminium Alloy for Anodizing
Selecting the appropriate aluminium alloy for anodizing requires careful consideration of multiple factors. Different alloys exhibit varying anodizing characteristics, and the choice significantly impacts the final appearance, performance, and cost-effectiveness of the finished product.
Key Selection Criteria:
- Primary Purpose: Determine whether anodizing is primarily for protective, decorative, or dual-purpose applications.
- Surface Finish Requirements: Choose between matt or bright finish based on aesthetic and functional needs.
- Color Specifications: Select natural finish for industrial applications or colored finish for architectural and decorative uses.
- Performance Requirements: Consider whether hard anodizing is necessary for high-wear applications.
- Environmental Conditions: Evaluate exposure to corrosive environments, UV radiation, and temperature extremes.
- Cost Considerations: Balance performance requirements with budget constraints and production volumes.
Recommended Alloys for Anodizing:
Alloy Series | Characteristics | Best Applications |
---|---|---|
6063 | Excellent anodizing response, smooth finish | Architectural, decorative applications |
6061 | Good strength, moderate anodizing response | Structural, industrial components |
5005 | Superior anodizing quality, bright finish | High-end architectural, consumer products |
6082 | High strength, good anodizing properties | Structural applications, transportation |
Ready to Enhance Your Aluminium Components?
Contact our anodizing specialists to discuss your specific requirements and discover how our advanced surface treatment capabilities can add value to your projects.
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