Knowledge about Anodizing Aluminum

Jun 25, 2021

Many people know very little about Anodizing Aluminum. Let us learn about Anodizing Aluminum.

1. Summary of materials

Anodizing Aluminum plate is an aluminum plate that is placed in the corresponding electrolyte (such as sulfuric acid, chromic acid, oxalic acid, etc.) as the anode, and electrolysis is carried out under specific conditions and an external current. A dense oxide film is formed on the surface of the aluminum plate, and the colorless and porous nature of the anodic oxide film is used to achieve the purpose of dyeing and protecting the aluminum substrate.

2. Anodizing process

The anodizing process is mainly from degreasing → etching and washing → neutralization → anodizing → coloring → sealing.

3. Performance characteristics

a. Good processability

The Anodizing Aluminum  is highly decorative and moderate in hardness. It can be easily bent and formed and can be continuously punched at a high speed. It is convenient to be directly processed into products without complicated surface treatment, which greatly shortens the product production cycle and reduces product production costs.

b. Good weather resistance

Standard thickness of anodized aluminum oxide film (3μm) indoor use does not change color, corrosion, oxidation, and rust. The anodized aluminum plate with thick oxide film (10μm) can be used outdoors, and it can not change color under long-term exposure to sunlight.

c. Strong metallic

The surface hardness of the anodized aluminum plate is high, reaching gem level, good scratch resistance, no paint coverage on the surface, retaining the metal color of the aluminum plate, highlighting the modern metallic feeling, and improving the product grade and added value.

d. High fire resistance

Pure metal products, no paint and any chemical substances on the surface, 600 degrees high temperature does not burn, does not produce toxic gases, and meets the requirements of fire protection and environmental protection.

e. Strong stain resistance

Does not leave fingerprints, there will be stain marks, easy to clean, no corrosion spots.

f. Strong applicability

It has a wide range of uses and is suitable for metal aluminum ceilings, curtain wall aluminum panels, aluminum-plastic panels, fireproof panels, honeycomb aluminum panels, aluminum veneers, electrical panels, cabinet panels, furniture panels, etc.