Electronic aluminum foil

Description of Electronic aluminum foil

Electronic aluminum foil is a kind of aluminum foil processed through a series of rolling, cleaning and cutting procedures on high-purity aluminum ingots. It is a key raw material for the production of aluminum electrolytic capacitors.

After the aluminum material is processed into a foil, the electronic aluminum foil undergoes surface corrosion treatment and re-oxidation treatment, and then undergoes winding processing to make a capacitor. The aluminum foil before corrosion is called the light foil, the aluminum foil after the corrosion is called the corroded foil, and the aluminum foil after the re-oxidation treatment is called the finished foil. Electronic aluminum foil refers to light foil, which is a key raw material for the production of aluminum electrolytic capacitors. Due to the sequence of the manufacturing process, it is divided into electronic aluminum foil and electrode foil. The electrode foil includes corrosion foil and formed foil.

Electronic aluminum foil and electrolyte together account for 30%-70% of the raw material cost of aluminum electrolytic capacitors (different with the size of the capacitor). It can store electrical energy and can be used as the positive and negative electrodes of electrolytic capacitors.

As one of the most basic electronic components, aluminum electrolytic capacitors are widely used in various electronic products such as electronic information industry and home appliances. They have the characteristics of small size, large capacitance and low cost, especially the price of unit capacitance is all Capacitors are the cheapest, in line with the development trend of low-price information products. They are widely used in communications, home appliances, automobiles, electronics, aviation, new materials and other industries. The market demand is huge. At present, the output of aluminum electrolytic capacitors accounts for 45% of the total output of capacitors. 

Classification of Electronic aluminum foil

Electronic aluminum foil can be divided into high-voltage anode foil, low-voltage anode foil, and negative electrode foil. The high-voltage anode foil is corroded by column holes, the low-voltage anode foil is corroded in spongy form, and the anode foil in the medium-voltage section is corroded by insects.　　

　　 High-voltage anode foil can be divided into two categories, one is high-quality high-voltage foil; the other is ordinary high-voltage foil. The characteristics of high-quality high-voltage anode foil are "two high and one thin", that is, high purity, high cubic texture and thin surface oxide film. This kind of product has high quality but high cost. Aluminum purity is more than 99.99%, cubic texture is 96%, and vacuum heat treatment is carried out under the conditions of 10-3Pa～10-5Pa. Ordinary high-voltage anode foil is an economical and practical high-voltage anode foil, with aluminum purity> 99.98%, cubic texture> 92%, and vacuum heat treatment is carried out under the conditions of 10-1pa～10-2pa.　　

　　 The negative electrode foil can be divided into soft state and hard state. Japan is dominated by soft electrochemical corrosion, and Western Europe is dominated by hard chemical corrosion. Both have their own advantages and disadvantages. The soft state uses high-purity aluminum foil (>99.85%), which is copper-free and high in quality, but the cost is also high; the hard state uses low-purity copper-containing aluminum foil, which is low in cost.

Application of Electronic aluminum foil

Electronic aluminum foil is widely used in capacitors. According to different materials, capacitors can be divided into three categories: aluminum electrolytic capacitors, ceramic capacitors and film capacitors. Among them, aluminum electrolytic capacitors are the most used variety among all electronic capacitor products. The rapid development of China's capacitor manufacturing industry has led to an increasing domestic demand for electronic aluminum foil. Due to the relatively difficult production technology of electronic aluminum foil required to manufacture capacitor anodes, the current domestic supply capacity for medium and high-end products is still insufficient, but with With the continuous increase in the supply of domestic aluminum foil products, this situation has changed significantly.

Aluminum products of TMR meet the export popular

Plastic movie and brown paper can be protected at customers’ need. Also timber case or timber pallet is adopted to shield products from harm for the duration of the delivery.

There are styles of packaging, which is eye to wall or eye to sky. Customers can choose either of them for their convenience.