Anodized Aluminum CoilAnodized Aluminum products and components are used in thousands of commercial, industrial and consumer applications, including:

Structures and architectural categories of all types : Building exteriors, such as storefronts, curtain walls and roofing systems.

Appliances : Appliances such as refrigerators, dryers, coffee brewers, ranges, televisions, microwave equipment.

Commercial and residential building products :Vents, awnings, duct covers, light fixtures, storm doors, window frames, mailboxes, bathroom accessories, patio covers and wall switch plates for buildings.

Food preparation equipment :Display cases, pans, coolers and grills for the food industry.

Tables, beds, files and storage chests for home and offices.

Golf carts, boats, and camping / fishing equipment for the leisure industry.

Furniture : Interior decoration and trim.

Sporting goods and boats

Motor vehicle components : Hundreds of components for motor vehicles of all kinds such as trim parts, wheel covers, control panels, and name plates.

Exterior panels for aerospace vehicles, clocks and electronic products, fire extinguishers, photo equipment, solar panels, telephones, picture frames, and bathroom accessories.

This is just a small list of products made up of anodized aluminum, designers could take advantage of anodizing for thousands of other uses.

Benefits and Applications of Aluminum Anodizing

The process of aluminum anodizing adds a layer of oxidation to aluminum extrusion products. Unlike iron or carbon steel where oxidation creates a layer of corrosion or rust, the anodizing process actually enhances the properties of aluminum. The hard, oxidized layer becomes a part of the aluminum, creating numerous beneficial properties.

Benefits of Aluminum Anodizing

Aluminum anodizing enhances the advantageous characteristics of aluminum in several ways:

Durability: Since anodized aluminum extrusion products have a protective layer, they are more resistant to wear from normal handling and usage.

Finishing: The process creates a more aesthetically pleasing finish, with either a clear or colourized appearance.

Corrosion resistance: The thick outer coating produced, along with proper sealing, increases the corrosion resistivity of the surface as it prevents further oxidization.

Lasting Color: The color finish added to anodized aluminum is more enduring due to the surface obtaining more adhesive and porous qualities during the anodizing process. The resulting anodic film coating allows for effective dyeing processes to be applied.

Strength:  The anodized aluminum surface is harder than pure aluminum, second only to diamonds with respect to its hard crystalline structure.

Applications for Aluminum Anodizing

Aluminum anodizing has a variety of commercial uses and diverse consumer applications across a wide range of industries.  The benefits of this strong and resistant finish are beneficial in the parts used in aircraft and automotive products. Architectural and construction projects often incorporate these strengthened materials into their external structures, as they are capable of withstanding all types of weather. Many components used in both day-to-day and industrial electronics are also improved through this valuable process. From satellites orbiting the Earth that are protected from the impact of debris to the smallest appliances and decorative items in our homes, the potential of anodized aluminum products are unlimited.

This enduring treatment improves the strength and aesthetics of aluminum extrusion products for easy maintenance and long life in any conditions, whether it be indoors or out in the elements.

The aluminum extrusions process shapes

The aluminum extrusions process actually enhances the properties of the metal and results in a final product that is stronger and more resilient than before. It also creates a thin layer of aluminum oxide on the surface of the metal, which gives it a weather-resistant and an attractive natural finish that does not require any further treatment, unless a different finish is desired.

The aluminum extrusions process shapes aluminum by heating it and forcing it with a hydraulic ram through a shaped opening in a die. Extruded material emerges as a long piece with the same profile as the die opening. Once extruded, the hot aluminum profile must be quenched, cooled, straightened and cut.

The extrusion process can be compared to squeezing toothpaste from a tube. The continuous stream of toothpaste takes the shape of the round tip, just as an aluminum extrusion takes the shape of the die. By changing the tip or die, different extrusion profiles can be formed. If you were to flatten the opening of the toothpaste tube, a flat ribbon of toothpaste would emerge. With the aid of a powerful hydraulic press which can exert from 100 tons to 15,000 tons of pressure, aluminum can be extruded into just about any imaginable shape.

There are two methods of extrusion – direct and indirect – and the process generally follows these steps:

  • A die is cast from the cross-section of the shape you want to create. 
  • Aluminum billets are heated in a furnace to approximately 750 to 925ºF, the point where aluminum becomes a soft solid.

Once at the desired temperature, smut or lubricant is applied to the billet and ram to keep the parts from sticking together, and the billet is transferred to a steel extrusion press container.

The ram applies pressure to the billet, pushing it through the container and through the die. The soft but solid metal is squeezed through the opening in the die and exits the press.

Another billet is loaded and welded to the previous one, and the process continues. Complex shapes may emerge from the extrusion press as slowly as one foot per minute. Simpler shapes can emerge as quickly as 200 feet per minute.

When the formed profile reaches the desired length, it is sheared off and transferred to a cooling table, where it is quickly cooled with air, water sprays, water baths or mists.

After the aluminum extrusion has cooled, it is moved to a stretcher where it is straightened and work-hardened to improve its hardness and strength and release internal stresses.

At this stage, extrusions are cut with a saw to the desired lengths.

Once cut, the extruded parts can be cooled at room temperature or moved into aging ovens, where heat treatment speeds up the aging process in a controlled temperature environment.

After adequate aging, extrusions profiles can be finished (painted or anodized), fabricated (cut, machined, bent, welded, assembled), or prepared for delivery as is to the customer.

The natural characteristics of aluminum allow it to be extruded into intricate, complex shapes, providing engineers and designers with limitless design possibilities.

Yuh-Field Industry is a professional aluminum extrusion profile manufacturer for OEM profiles, machining, and anodizing with great quality. 

With excellent aluminum machining technology, all our OEM aluminum extrusion profiles are made in Taiwan; we can turn out the most cost-effective products for your OEM projects.

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Anodizing Enhances Aluminum Extrusions

Anodizing is an electrochemical process that enhances aluminum's natural oxide surface layer by forming an even more durable anodic oxide surface that can accept a variety of (usually translucent) colors.

In the anodizing process, extruded aluminum parts - following a series of cleaning, rinse and etch steps - are immersed in an acid electrolyte bath and an electrical current is passed through the solution. A cathode is mounted to the inside of the anodizing tank, while the aluminum extrusions act as an anode. Oxygen ions are released from the electrolyte and combine with aluminum atoms at the surface of the extrusion being anodized, thereby creating an aluminum oxide layer fully integrated with the underlying aluminum. Dyes can subsequently be applied, with the final step a sealing stage to enhance durability and prevent corrosion.

The resulting oxide layer will not chip or peel, and is extremely hard and corrosion resistant, thus providing outstanding durability and low maintenance costs. Further, a number of colors can be imparted during the anodizing process. These properties lead anodizing to be a popular finishing choice for such applications as architectural products, home appliances, furniture, boats and sporting goods, and personal electronics.

The resulting oxide layer will not chip or peel, and is extremely hard and corrosion resistant, thus providing outstanding durability and low maintenance costs. Further, a number of colors can be imparted during the anodizing process. These properties lead anodizing to be a popular finishing choice for such applications as architectural products, home appliances, furniture, boats and sporting goods, and personal electronics.

Specific performance characteristics, such as hardness and porosity are dependent upon the alloy being used, the specific anodizing process and chemistry, and the length of treatment time. A number of standard anodic coating designations have been developed; these, along with a more detailed discussion of the anodizing process and variables, can be found by clicking here.

About product : Customized anodized extruded 6063 aluminum tube

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