Aluminium box enclosure,aluminum box enclosure case,Musical Instrument Housing

With the increasing expansion and improvement of the application scope and quantity of aluminum box enclosure case, the surface anti-corrosion problem of aluminum alloy enclosure has been paid more and more attention by various industries. The development and improvement of aluminum alloy surface anti-corrosion technology has become the focus of the aluminum alloy enclosure processing industry. So what are the surface anti-corrosion technologies for aluminum alloy enclosures?

Aluminum alloy is very active and easy to form oxide film on its surface. It is difficult to electroless plating on its surface under conventional conditions. Generally, nickel is first plated on the surface of aluminum alloy, and then other elements are plated. There are two most widely used methods in the process of electroless nickel plating: zinc immersion pre plating and direct electroless nickel plating.

Zinc immersion pre coating method

The disadvantage of zinc dipping pre coating method is that it is easy to cause the nickel layer to peel off in a humid corrosive environment, and there is a nitric acid dezincification procedure between two zinc dipping, which will pollute the production environment. Therefore, the development of this process is restricted to a certain extent.

Electroless plating

Electroless plating is a new type of metal surface technology, which has the advantages of simple technology, energy saving and environmental protection, wide application range and uniform coating. In terms of protection performance, it can improve the corrosion resistance and service life of products, and in terms of functionality, it can improve the wear resistance and lubrication of machined parts, which has become the development trend of surface treatment technology.

Thermal spraying

Thermal spraying technology can be used to spray various metal alloys, non-metal and other solid materials, so it can be made into functional coatings with various properties, with flexible construction and strong adaptability. Thermal spraying is a mature and effective surface treatment method. The advantages of thermal spraying process are: light equipment, flexible process, less operation process, short processing time, fast repair, and controllable coating thickness.

The corrosion resistance of aluminum alloy is not strong, and it is easy to stain. Therefore, aluminum box enclosure case usually needs special oxidation treatment to obtain enclosure parts with good corrosion resistance, wear resistance and other properties.

Anodic oxidation

Anodic oxidation method the anode is made of aluminum alloy products in the electrolyte, the cathode is made of aluminum plate, and I intend to be energized. The process that a layer of oxide film will be formed on the surface of the product after power on. After anodic oxidation, an oxide film with a thickness of several microns to hundreds of microns can be formed on the surface of aluminum alloy.

Chemical oxidation method

The chemical oxidation method generates a layer of porous oxide film with good adsorption on the surface through chemical reaction, which can be used as the bottom layer of organic coating. The chemical oxidation method is characterized by convenient operation, simple equipment, low cost and high efficiency. It is applied to aluminum alloy enclosures and aluminum alloy product parts that are not suitable for electrochemical treatment.

Micro arc oxidation

Micro arc oxidation (MAO) is a new ceramic technology for aluminum alloy surface developed on the basis of anodic oxidation. By using high-energy density micro plasma arc, the film and hardness formed after oxidation have been greatly improved, and the process is simple, the production efficiency is high, the pollution is low, and the treatment capacity is strong. It is a new surface treatment technology with great development prospects.

Laser surface cladding technology

Laser surface cladding technology is a kind of surface strengthening method, which rapidly heats and melts the alloy or ceramic powder and the substrate surface under the action of high-energy beam, and then naturally cools after the beam is removed. The advantages of this method are high economic benefit, cost reduction, efficiency increase and material saving.

The surface anti-corrosion treatment Musical Instrument Housing greatly improves the performance of aluminum alloy enclosure parts. In order to further meet the anti-corrosion requirements, the surface needs to be sprayed with paint. With the higher and higher requirements of environmental protection, people's awareness of environmental protection is increasing. The coatings used for surface corrosion protection are developing towards the direction of no pollution or low pollution. With the development of manufacturing technology of various aluminum alloy products, coatings with anti-corrosion function are playing an increasingly important role in saving, environmental protection and anti-corrosion.

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