What is anodized aluminum?
Anodized aluminum is to place aluminum alloy in the corresponding electrolyte (such as sulfuric acid, chromic acid, oxalic acid, etc.) as an anode, and electrolyze under specific conditions and external current to cause a chemical oxidation-reduction reaction on the surface of the aluminum alloy, forming a thick and dense anodized protective film on the aluminum surface. It is not an additional layer, and it is integrated with the internal alloy layer. It has moderate hardness and can be processed into various shaped products.
At the same time, due to the strong microporous adsorption capacity of the anodized film, the anodized layer can be colored into various single or multiple color products through the coloring liquid, thereby producing colored anodized aluminum. Colored anodized aluminum is widely used in the fields of decoration and electronic and home appliance panel shells.
Color anodized aluminum specifications
We can customize the production of color anodized aluminum sheet and coil according to customer needs, whether it is coil or sheet, and support cut to size.
Alloy: 1050, 1060, 1100, 3003, 3004, 3105, 5005, 5052, etc.
Temper: O, H22, H24, H32, etc.
Thickness: 0.2mm to 2.0mm
Width: 10mm to 1800mm
Anodic oxide film thickness: 3μm to 60μm
Color: gold, silver, red, blue, black, gray, white, green, copper, brown, etc., can be customized according to customer requirements
Standard: ASTM B209, GB/T 3880, EN AW, etc.
Certification: CE, ISO, SGS, etc.
Process of color anodized aluminum
Process flow
- Pretreatment cleaning
- Degreasing
- Water washing
- Polishing
- Water washing
- Anodizing
- Water washing
- Coloring
- Sealing
- Done
Coloring process
Dyed Coating: The anodized aluminum parts are immersed in a bath containing dyes, and the dyes are adsorbed on the surface of the pore openings of the anodized film to produce color.
Electrolytic Coating: An anodized film that is colored by the electrodeposition of metals or metal oxides through the pore structure of the anodic oxide film. After anodization, the metal is immersed in a bath containing inorganic metal salts, and an electric current is applied to embed the metal salts into the bottom of the pores.
Integral Coating: A colored anodized film that is spontaneously generated by the anodizing process itself in a suitable electrolyte (usually based on organic acids).
Interference colored Anodic Coating: An anodized film colored by the light interference effect.
Combine colored Anodic Coating: An anodized film that is colored by adsorption dyeing after electrolytic coloring or integral coloring.
Features
For ordinary anodized aluminum coils, a thin layer of anodic oxide film is formed on the surface of the aluminum coil, and its thickness is 5 to 20 microns.
The thickness of the anodized film ranges from 3μm to 10μm: it is used indoors, and it will not change color, corrode, oxidize, or rust after long-term use.
The thickness of the anodized film ranges from 10μm to 20μm: it can be used outdoors and can be exposed to sunlight for a long time without changing color.
The thickness of the anodized film ranges from 60μm to 200μm: also called hard anodized film, it has higher hardness, wear resistance and corrosion resistance, good heat resistance, excellent insulation, and a breakdown voltage of up to 2000V. It is generally used for oxidation of mechanical parts and other profiles. It will not corrode inω=0.03NaCl salt spray for thousands of hours.
Color anodized aluminum products
According to customer needs, color anodized aluminum coils and sheets can be anodized and colored for different series of aluminum alloy products, including 1000 series, 3000 series, 5000 series, etc.:
1100 Color anodized coil and sheet
Due to its low cost and easy molding, 1100 colored aluminum coils are widely used in architectural decoration, furniture panels and lamps.
1050 Color anodized coil and sheet
Similar to 1100 colored aluminum coils, 1050 is also widely used in various lamps, cabinets and home appliance panels, as well as building interior and exterior wall panels.
1060 Color anodized coil and sheet
Application: Building curtain wall, interior decoration, electrical accessories, electronic lighting, refrigerator and other home appliance panels
3003 Color anodized coil and sheet
Due to the excellent corrosion resistance of 3003, it is widely used in outdoor building materials, fireproof exterior wall panels, highway signs, billboards, etc.
5052 Color anodized coil and sheet
Application: Used for car decoration, 3C electronic products such as mobile phones and computer shells, etc.
5005 Color anodized coil and sheet
Application: high-end exterior wall panels, decorative panels, ceilings, electrical panels, etc.
Orange peel embossing, lentil pattern, brushed and other special colored aluminum coils
Application: electronic products, home appliances, decoration, crafts, etc.
Application field of color anodized aluminum
Architectural field
Interior decoration, ceiling
Color anodized aluminum has good processability, strong decorativeness, moderate hardness, can be easily bent and formed, continuous high-speed stamping, convenient direct processing into products, widely used in interior decoration, such as interior panels, ceilings, etc.
Good weather resistance, no discoloration, no corrosion, no oxidation, no rust when used indoors for a long time. Strong metallic feel, high surface hardness, good scratch resistance, no paint covering on the surface, retaining the metallic color of the aluminum coil.
Alloy: 1050, 1060, 1100 and 5005
Temper: H14, O
Warranty period: 10-20 years, depending on the film thickness
Building curtain walls, billboards, etc.
Color anodized aluminum meet fire protection and environmental protection requirements due to their high fire resistance and no toxic gas production.
At the same time, the thickened anodic oxide film (more than 10μm) can be exposed to sunlight for a long time without discoloration. In addition, the micropores of the anodic oxide film can absorb a variety of colors, and are widely used in outdoor curtain wall panels, billboards, etc.
Alloy: 1050, 1060, 1100, 3003 and 5005
Temper: H14
Warranty period: 10-20 years, depending on the film thickness
Lighting field
Indoor lamps
Color anodized aluminum are widely used in various indoor lampshades due to their good processing and forming capabilities, good tensile properties, light weight and low cost.
Alloy: 1050, 1060, 1100
Temper: O, H22
Warranty period: 10-20 years, depending on the film thickness
Outdoor lamps
Color anodized aluminum have excellent insulation, breakdown voltage resistance, enhanced corrosion resistance, and no corrosion in salt spray for thousands of hours. Therefore, they are widely used in outdoor lamps to extend their service life.
Alloy: 1050, 1060, 1100
Temper: O, H22
Warranty period: 10-20 years, depending on the film thickness
Electronic product field
3C electronic product shell
The colored anodized aluminum has a strong metallic feel, high surface hardness, good scratch resistance, no paint coverage on the surface, and retains the metallic color of the aluminum coil. At the same time, due to the presence of a large number of micropores in the thin layer of the anodic oxide film, various bright colors can be formed after adsorption and coloring. It is widely used in the shells of electronic products such as mobile phones, computers, and power banks.
Alloy: 5052, 5005, 3003
Temper: H32, H22
Warranty period: 20 years
Precision electronic devices
The colored anodized aluminum coil is also widely used in precision electronic devices because the surface does not change color, rust, has strong anti-fouling properties, is easy to clean, and does not produce corrosion spots after oxidation.
Alloy: 1100, 1050, 3003
Temper: O, H22, H24
Warranty: 20 years
Furniture and home appliances
Furniture decoration, handicrafts
Color anodized aluminum for furniture decoration provide decorative elements while being durable and beautiful. It is available in a variety of colors and brushed finishes, and is easy to form, making it the best choice for cabinets and all-aluminum furniture panels.
Alloy: 1100, 1050, 1060
Temper: O, H22
Warranty: 20 years
Home appliances and kitchen appliances
The significant advantages of color anodized aluminum coils are good processability, strong decorativeness, easy bending and forming, and continuous high-speed stamping. They are widely used in the field of home appliance panels, such as refrigerator and freezer panels, pot liner, pot shell, etc.
Alloy: 1100, 1050, 1060
Temper: O, H22
Warranty: 20 years
Automobile field
Automobile decoration
Due to its unique metallic luster and scratch resistance, colored anodized aluminum coils are widely used in the field of high-end automotive interior metal decoration, such as interior decoration, metal decorative panels of doors and consoles, and are also used in the production of automobile license plates.
Alloy: 5052, 3003
Temper: O, H32
Warranty: 20 years
Car body panel floor, etc.
Colored anodized aluminum are used in large quantities for car panel floors, etc. because of their strong hardness and durability of aluminum alloy, high fire resistance, and no toxic gas.
Alloy: 5052
Temper: H32
Warranty: 20 years
Engine wear-resistant parts
Color anodized aluminum coils are particularly suitable for manufacturing engine cylinders and other wear-resistant parts because of their strong hardness and durability of aluminum alloy, and no corrosion, oxidation, or rust.
Alloy: 5052
Temper: H32
Warranty: 20 years
Worthwill's colored aluminum coil
We have independent anodizing production lines and coloring coil lines, which can accept orders for colored aluminum coils of various alloys and sizes, with processing thickness ranging from 0.2mm to 6.0mm and width ranging from 10mm to 1800mm. At the same time, many years of domestic sales and foreign export experience have allowed us to always adhere to the principle of customer first and quality first, strictly control the production process of color anodized aluminum coils, and produce aluminum materials that meet various standards, such as GB, ASTM, EN, etc.
Production advantages
We have a strict and complete color anodized aluminum coil and sheet production line, from the initial aluminum coil cleaning to the final coloring and sealing treatment, after multiple processes, to ensure that the anodic oxide film thickness is stably controlled within the range required by customers.
The maximum anodic oxide film thickness for indoor use can reach 15μm.
The maximum anodic oxide film thickness for outdoor use can reach 20-30μm.
The film layer is stable, scratch-resistant, non-corrosive, non-rusting, and has no bad spots.
After 90-degree or 180-degree bending and stretching, the anodized film layer will not fall off or crack, and the appearance remains stable.
Packaging Advantages
We use outer packaging + inner packaging to ensure that the various properties of the goods are not damaged during transportation with stricter requirements and packaging methods. Inner packaging: Each roll is wrapped with sack polyethylene and plastic plugs. Outer packaging: film packaging, pallet packaging, wooden box packaging, etc.
Contact Us
We are committed to providing all customers with the highest quality, best delivery time and excellent customer service on our colored anodized aluminum products. Contact us now to discuss the colored anodized aluminum options that meet your application requirements.
