Aluminum foil is usually used as its packaging material; electrolytic capacitor material; thermal insulation materials for buildings, vehicles, ships, houses, etc.; also can be used as decorative gold and silver wire, wallpaper, and various decorative labels for stationery and light industrial products. Here are five main areas of application for aluminum foil:
First, automotive composite foil
With the vigorous development of China's automobile industry and the continuous improvement of automobile aluminizing rate, the market demand for automotive foils has increased rapidly. There are two kinds of foils for automobiles, one is composite foil for automobile air conditioners, and China's automobile air conditioners have been fully Aluminized, the annual demand for aluminum foil reaches 15,000 tons; the other is composite foil for automotive radiators, used in the manufacture of automotive water tank radiators, car condensers and evaporators. At present, the aluminum tank rate of automotive water tanks reaches 40%, annual demand The amount is about 0.3 million tons.
Second, the medicine foil
Pharmaceutical packaging aluminum foil mainly includes water-based, easy-opening caps for injection and medicinal PTP aluminum foil. Since PTP aluminum foil has the advantages of moisture-proof, easy to carry, safe and sanitary, it is widely used in the international pharmaceutical industry. China has used aluminum foil since 1985. Packaging medicines, so far packaging aluminum foil only accounts for 20% of pharmaceutical packaging materials. In recent years, the pharmaceutical foil market has developed rapidly. On the one hand, the pharmaceutical market has developed rapidly, but mainly because the proportion of 20% aluminum foil used in pharmaceutical packaging has been increasing.
Third, flexible packaging aluminum foil
In developed countries, flexible packaging has become one of the main packaging forms of food and beverages, replacing canned and bottled products within a certain range. In recent years, China's flexible packaging market has developed rapidly, and so far 10 aluminum foil composites have been introduced. The production line can adopt different technologies such as dry compounding, hot melt compounding and extrusion compounding according to the use of flexible packaging. Flexible packaging not only has the functions of moisture proof and fresh preservation, but also can print various patterns and characters, which is an ideal material for modern commercial packaging. With the improvement of people's living standards, there is still a lot of room for development of flexible packaging aluminum foil.
Fourth, aluminum foil for electrolytic capacitors
There are fewer manufacturers of domestic electrolytic capacitor aluminum foil, mainly because the market demand is not large, and the production technology has a big gap with advanced countries. However, aluminum electrolytic capacitors have good performance, low price and wide application, so the market prospect is very good. The annual demand is 45,000 tons, which is six times that of the Chinese market. With the development of the electronics industry and China becoming a major industrial production base, the market demand for electrolytic capacitor aluminum foil is broad.
Five, aluminum foil for cable
The outer surface of the cable needs to be wrapped with a layer of aluminum foil for protection and shielding.
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