Aluminum alloy anodizing processing and electroplating

Today we are going to talk about aluminum alloy anodizing processing and electroplating. Electroplating is to use the material to be plated as the cathode and the same metal material as the plating metal as the anode. Anodizing is chemically or electrochemically treated. Electroplating mainly deals with metallic and non-metallic surface treatments. Anodizing treatment is a method of treating metal surfaces. Electroplating uses the effect of charge to obtain electrons at the cathode and deposit them on the material to be plated. Anodizing is an electrochemical method that controls the formation of oxide layers.

The methods are different:

Electroplating is to use the material to be plated as the cathode, the same metal material as the plated metal as the anode (insoluble anode is also used), and the electrolyte is a solution containing the metal ions of the plating; A certain current is input between the anode and cathode, and anodizing uses chemical or electrochemical treatment to form a film containing metal components on the surface of the metal. As a material protection, the metal material of the anode forms a film on its surface by applying an electric current in a specific electrolyte.

Different processing objects:

Electroplating mainly deals with metallic and non-metallic surface treatments. The most commonly used electroplated metals are nickel, chromium, tin, copper, silver and gold. Anodizing treatment is a method of treating metal surfaces. Most metallic materials such as stainless steel, zinc alloys, aluminum alloys, magnesium alloys, copper alloys, and titanium alloys can be anodized in a suitable electrolyte.

The processing principles are different:

Plating is due to the effect of electric charge, where metal anodic ions move to the cathode, where electrons are obtained and deposited on the material to be plated. At the same time, the metal of the anode dissolves, and the metal ions in the electrolyte are constantly replenished. Anodizing uses the oxidation of aluminum alloy to control the formation of oxide layer by electrochemical method, thereby preventing further oxidation of aluminum and increasing the mechanical properties of the surface.