Anodized alumina means that the surface of aluminum and aluminum alloy is covered with a dense oxide film. In order to prevent further oxidation, its chemical properties are the same as alumina. Therefore, the colorless and porous nature of anodic oxide film is used to dye and protect aluminum matrix. The preparation principle is anodic effect (also called anodic treatment).

Anodic oxidation process

1, mechanical polishing;

2. Chemical treatment to remove copper from the surface of some alloys;

3. Cleaning and degreasing (for parts that have been anodized, if it is necessary to re-anodize, use alkali or special chemicals to remove the original anodized surface);

4. Put it into dilute sulfuric acid as anode to electrify to generate surface oxide layer (porous white translucent film);

5, dyeing;

6. Fixing (heating or sealing the hole of surface oxide layer with chromate solution).

operating characteristic

1, good processability.

Anodized aluminum oxide plate has the advantages of strong decoration, moderate hardness, easy bending and forming, high-speed continuous punching, convenient direct processing into products, no need of complex surface treatment, greatly shortening the production cycle and reducing the production cost of products.

2, good weather resistance

Anodized aluminum oxide plate with standard thickness of oxide film (3μm) will not change color, corrode, oxidize and rust when used indoors for a long time. Anodized aluminum oxide plate with thick oxide film (10μm) can be used outdoors and can be exposed to the sun for a long time without discoloration.

3. Strong sense of metal

Anodized aluminum plate has high surface hardness, reaching gem level, good scratch resistance, and no paint covering on the surface, which retains the metallic color of aluminum plate, highlights the modern metallic feeling, and improves the product grade and added value.

4, high fire resistance

Pure metal products, without paint and any chemical substances on the surface, do not burn at 600 degrees, do not produce toxic gases, and meet the requirements of fire prevention and environmental protection.

5. Strong anti-pollution ability

Without fingerprints, there will be stains, easy to clean, and will not produce corrosion spots.

6, strong applicability

Widely used, suitable for metal aluminum ceiling, curtain wall aluminum plate, aluminum-plastic plate, fire-proof plate, honeycomb aluminum plate, aluminum veneer, electrical panel, cabinet panel, furniture panel and so on.

application area

Anodized aluminum oxide plate has a wide range of applications, such as architectural decoration, furniture and household appliances.

1, building decoration industry, such as building facade, curtain wall, top surface of indoor wall, etc.

2. In the field of furniture and household appliances, anodized aluminum plate is a decorative plate deeply loved by manufacturers.