Anodized Bright

Anodized bright is a process that forms a transparent oxide film on the surface of aluminum profiles through anodizing, giving it a glossy appearance. This process complies with the GB/T 5237.2 "Aluminum Alloy Building Profiles Part 2: Anodized Profiles" standard.
Process Steps: (1) Surface Pre-treatment:
1.Degreasing and Cleaning: Use alkaline or acidic cleaning agents to remove oil and dust from the surface.
2.Acid Washing and Alkaline Washing: Use an acid solution to remove the oxide layer from the surface, followed by alkaline washing to neutralize the acidity.
3.Water Rinsing: Rinse the surface thoroughly with clean water to ensure no residual chemicals remain.
(2) Anodizing:
1.Electrolyte Preparation: Place the aluminum profiles in an electrolyte bath containing sulfuric acid, and connect them to form an electrolytic circuit.
2.Electrolytic Reaction: Apply direct current in the electrolyte bath, causing an oxide film to form uniformly on the aluminum surface.
3.Control Parameters: Control current density and treatment time to ensure the thickness and uniformity of the oxide film.
(3) Sealing:
1.Hot Water Sealing: Immerse the anodized aluminum profiles in hot water to close the micro-pores in the oxide film, enhancing corrosion resistance.
2.Chemical Sealing: Alternatively, use a nickel salt solution for sealing to further improve the oxide film's performance.
3.Inspection and Drying: Inspect the surface to ensure the oxide film is uniform and defect-free, then dry the profiles.
Features: The surface is bright and transparent, corrosion-resistant, and has enhanced hardness.
Applications: Used in high-end architectural decorations, electronic product housings, and furniture.