2022-04-15
Aluminum extrusions are anodized to prevent corrosion, enhance lubrication, and allow for color dyeing through an electrochemical conversion process. "The anodic structure derives from the aluminum substrate and is constituted solely of aluminum oxide," according to the Aluminum Anodizers Council (AAC). Unlike paint or plating, aluminum oxide is not applied to the surface. Still, it is fully integrated with the underlying aluminum substrate, so it cannot chip or peel."
Anodized aluminum parts and aluminum profiles are used to make aluminum. Automobile aluminum parts, handrail parts, electrical circuit components, aluminum airplane parts, aluminum balustrades, and various other aluminum parts are available.
In this case, anodized aluminum is separated into two types.
The first is anodized, while the second is anodized in a profile size. Anodizing pools are typically 2-3-4 meters long in anodized aluminum parts. Due to the profile lengths of aluminum anodized pools in regions where the aluminum profile is anodized, the lengths of aluminum anodized pools are roughly 6-7-8 and 9 meters. Aluminum can be anodized in two ways, depending on how it's manufactured.
Usually, anodizing involves four steps as follows.
This step involves Pre-treating the aluminum with degreasing and pickling, as well as producing a visible finish, which is the first stage in anodizing. To achieve the desired look, bright or satin finishes might be used. Light etching is used in satin finishing to provide an even, matte surface on the aluminumBright finishing is the process of cleaning any heavy metal residue from aluminum that was not removed during the pre-treatment procedures. Bright or satin-finish aluminum extrusions provide a smooth, clean surface for anodizing.
The material is immersed in an acid electrolyte bath as an electric current flows through it during the anodizing process. "Aluminum works as an anode so that oxygen ions are released... to mix with the aluminum atoms at the surface," as everyone knows. The metal is chemically transformed to the desired degree during this procedure, which is a type of controlled oxidization. Colors can be applied to aluminum after it has been anodized in a variety of ways.
There are several techniques for color anodizing aluminum. Electrolytic coloring, which includes soaking anodized aluminum in an inorganic metal salt bath, is one method. As the metal salts oxidize in the pores of the aluminum, an electric current is delivered to the solution. The color of aluminum will change depending on the chemical conditions of the bath and the length of time spent immersed. Popular anodized color finishes include gold, black, stainless, clear, brown, bronze, and nickel. Some companies using advanced technology also offer color matching and custom color anodizing.
Sealing the aluminum to prevent corrosion and water leakage is the final step. A cold approach, a hot procedure, or a combination of the two can be used to seal the anodized aluminum extrusions. Sealing also prevents any scratching or staining of the surface.
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