| Customization: | Available |
|---|---|
| After-sales Service: | 1 Year |
| Warranty: | 1 Year |
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Cleaning
Degreasing: Removal of surface oils and contaminants (alkaline or acidic cleaning).
Rinsing: Thorough water rinse to remove cleaning residues.
Etching (Optional, for matte finish)
Alkaline etching (e.g., NaOH solution) to create a uniform surface texture.
Rinsing: Neutralization and water rinse.
Desmutting (If etched)
Acid dip (e.g., nitric acid or phosphoric acid) to remove smut (intermetallic residues).
Rinsing: Final water rinse.
Anodizing
Electrolytic Process:
Aluminum acts as the anode in an acidic electrolyte (e.g., sulfuric acid, chromic acid, or oxalic acid).
DC current applied, forming a porous aluminum oxide (AlO) layer.
Aluminum acts as the anode in an acidic electrolyte (e.g., sulfuric acid, chromic acid, or oxalic acid).
DC current applied, forming a porous aluminum oxide (AlO) layer.
Key Parameters:
Voltage: 12-20 V (sulfuric acid anodizing).
Temperature: 18-22°C (typical for Type II anodizing).
Time: 30-60 minutes (varies with desired thickness).
Coloring (Optional)
Dyeing: Immersion in organic/inorganic dyes (penetrates porous oxide layer).
Electrolytic Coloring (e.g., tin or nickel salts): Metal deposition for durable colors.
Natural Coloring: Achieved via alloy-dependent oxide tints (e.g., gold/bronze for certain alloys).
Sealing
Hot Water Sealing: Hydrates the oxide layer, closing pores (∼95-100°C, pH-adjusted water).
Cold Sealing: Nickel-fluoride-based chemical sealing.
Mid-Temperature Sealing: Balance of energy efficiency and performance.
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