Anodized aluminum alloy is not electroplated aluminum alloy?

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

Form: Surface effect is similar

In essence, anodic oxidation is the fusion of metal ions on the surface of aluminum alloy, not easy to fall off; Environmental protection belongs to three levels when processing.

Electroplating is when a variety of metals adhere to the surface and are easy to peel off. Environmental protection belongs to a level when processing.

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

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

The purpose of electroplating is to change the surface property or size of the substrate by plating metal coating on it. Electroplating can enhance the corrosion resistance of metals (corrosion resistant metals are used for coating metals), increase hardness, prevent wear, improve electrical conductivity, lubricity, heat resistance, and beautiful surface.

Anodic alumina refers to the surface of aluminum or aluminum alloy is coated with a layer of dense aluminum oxide, its chemical properties are the same as alumina itself, can prevent further oxidation of aluminum products or aluminum alloy objects. However, unlike ordinary oxide film, anodic alumina itself can be stained by electrolysis, which is why people see anodic alumina material products on the market in silver, black and other colors.

Many metals are weakened by the oxidation process, but aluminum is not. In fact, aluminum can be made more durable by a process called anodizing. Anodizing involves putting a sheet of aluminum into a tank of chemical acid, usually laboratory acetone. The aluminum sheet becomes the anode of the chemical cell, and the acid pool becomes the negative electrode. An electric current passes through the acid, causing the surface of the aluminum to oxidize. The oxidized Aluminum forms a hard layer. The result is an extremely tough material called Anodized Aluminum.

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