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Brief introduction to the original theory of anodizing

Source: Time:2020-04-14 10:41:17 views:

The so-called anodic treatment, relative to the principle of electroplating, is to place the object to be treated on the anode to oxidize it to form an oxide film. Due to the fine structure of the aluminum oxide film, the adsorption is good and it is not easy to fall off
The so-called anodic treatment, relative to the principle of electroplating, is to place the object to be treated on the anode to oxidize it to form an oxide film. Due to the fine structure of the aluminum oxide film, the adsorption is good, and it is not easy to fall off, so a layer is manually coated The meticulous oxide film protects it from continuous oxidation, which is useful in the anode.
Aluminum anode treatment is the formation of an oxide film on the surface of aluminum metal by the effect of current, which is hard and wear-resistant, with high corrosion resistance and beautiful color. Aluminum alloy itself is easy to process, high in strength, and has a wide range of applications. The sloppy T-handling products are aluminum doors and windows, furniture, cameras, and instrument housing parts. Aluminum manufacturing and processing industries are also expanding, and aluminum processing has considerable market potential.
The development of anodic treatment such as hard anodizing (hard anodizing) is also used in low temperature currents. This hardened anodized aluminum can be used for pistons, cylinders, cylinder liners, hydraulic and turbine parts, steam valves, gears, gun parts, clutches, brake disks, (brake disk), see also Tools etc. Bath temperature, current density, and solution composition need to be automatically controlled to strictly control the quality of the finished product to meet customer requirements. Automation requires the introduction of foreign technology and a large amount of capital, so at the same time we must deeply understand the potential of foreign markets to achieve automation in order.
Principle of electroplating
Electroplating is an electrolysis process. The metal sheet that provides the coated metal acts like an anode, the electrolyte is usually an ion solution coated with metal, and the object to be plated acts like a cathode. After the voltage is input between the anode and the cathode, the metal ions in the electrolyte are attracted to swim to the cathode, and after being reduced, they are plated on it.
At the same time, the metal of the anode is redissolved to provide more metal ions in the electrolyte. In some cases, insoluble anodes are used, and a new group of electrolytes needs to be added to supplement the plating metal ions during electroplating.

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