Is Anodized Aluminum Alloy Electroplated?

Anodized aluminum alloy and electroplated aluminum alloy are the same in form, but they are different in essence.

Form: The superficial effect is similar

In essence: anodizing is the fusion of metal ions on the surface of aluminum alloy, which is not easy to fall off; Environmental protection during processing belongs to the third level.

Electroplating is a variety of metals attached to the surface, easy to fall off. Processing environmental protection belongs to the first level.

The concept of electroplating: the process of plating a thin layer of other metals or alloys on the surface of some metals using the principle of electrolysis.

When electroplating, the coating metal as the anode, is oxidized into cations into the electroplating solution; The metal products to be plated as the cathode, the cation of the coating metal on the metal surface is reduced to form a coating. In order to eliminate the interference of other cations, and make the coating uniform, firm, need to use the solution containing the coating metal cation electroplating solution, in order to keep the concentration of the coating metal cation unchanged.

The purpose of electroplating is to plating a metal coating on the substrate and change the surface properties or dimensions of the substrate. Electroplating CAN ENHANCE THE corrosion resistance of metal (corrosion resistant metal coating), increase hardness, prevent wear, improve electrical conductivity, lubricity, heat resistance, and surface appearance.

Anodic alumina refers to the surface of aluminum or aluminum alloy coated with a layer of dense alumina, its chemical properties and alumina itself is the same, can prevent aluminum products or aluminum alloy object performance further oxidation. However, unlike the general oxide film, anodic alumina itself can be dyed by electrolytic coloring, which is also the reason why people see the anodic alumina material products on the market with silver, black and other colors.

Many metals are weakened by oxidation, but aluminum is not. In fact, aluminum can be made more durable by a process called anodizing. Anodizing involves placing a piece of aluminum into a pool of chemical acid, usually acetone used in laboratories. The aluminum sheet becomes the anode of the chemical cell, while the acid pool becomes the negative electrode. An electric current passes through the acid, causing the surface of the aluminum to oxidize. Oxidized Aluminum forms a solid layer, and the result is an extremely strong substance called Anodized Aluminum.

With the proper anodizing process, anodized aluminum can be almost as hard as diamond. Some modern buildings use anodized aluminum as metal frames that need to be exposed. In addition, it is often used as a high-end cooking material, such as deep fryers. Heat passes evenly through the anodized aluminum, and the plating process also provides natural protection. Other electroplating processes can be used to make anodized aluminum look like copper or other metals.

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