Seven categories of air-conditioned aluminum foil

Air conditioning is essential for summer summer, in the air conditioning into thousands of households at the same time, it is also developing. At present, air conditioning is gradually to miniaturization, high efficiency, high life direction. And air conditioning heat exchange film is also corresponding to ultra-thin and high-strength direction of development. In the 1980s, the thickness of the heat exchange sheet was 0.15-0.2ram, while today’s thickness is only between 0.09 and 0.15mm. In order to improve the life of air conditioning, reduce power consumption, improve ventilation quality and improve cooling effect, a variety of functions of the hot film. Air-conditioning aluminum foil according to its processing technology, performance characteristics can be divided into 7 categories:

1, non-coated aluminum foil

Uncoated aluminum foil is aluminum foil that is rolled out of flame and has not been treated in any form. China 10 years ago, about 15 years ago for air conditioning heat sheet aluminum foil are non-coated aluminum foil. Even at present, about 50% of the heat exchange tablets used in developed countries abroad are still non-coated aluminum foil, while in China, the ratio is about 60%.

2, coated aluminum foil

The so-called coated aluminum foil is the surface reprocessing of non-coated aluminum foil, so that it has a special function. In Japan, Germany and other countries with rapid technological development, the use of coated aluminum foil has been more than 15 years of history. In China, the use of coated aluminum foil time is not more than 10 years.

3, corrosion-resistant aluminum foil

The surface of corrosion-resistant aluminum foil products has a certain corrosion-resistant protective layer, the air-conditioning heat exchanger made of this product can be applied to the harsher areas, and can significantly improve the service life of air-conditioning. At the same time, due to the improvement of the corrosion resistance of the heat exchanger, the generation of surface corrosion powder is greatly reduced, which improves the ventilation quality and purifies the air in the air conditioning room.

4, hydrophilic aluminum foil

Hydrophilic aluminum foil surface has a strong hydrophilic. The quality of hydrophilic properties is determined by the an angle size formed when water is glued to the surface of aluminum foil. The smaller the angle, the better the hydrophilic performance, and vice versa. In general, the a angle is less than 35. That is, it belongs to the hydrophilic performance. Hydrophilic aluminum foil is commonly used on air conditioning condensers. Its main function is to make the moisture in the hot air condense into water droplets on the heat exchange sheet easy to spread out and flow down the sheet. This can avoid the heat exchange between the heat sheet water droplets “bridge” and affect the ventilation effect of the heat exchanger, thereby improving the heat exchange rate of air conditioning, in the same cooling capacity conditions can also save electricity. At present, the general hydrophilic aluminum foil on the market, in addition to the surface has a better hydrophilic, but also has a high corrosion resistance, so that the performance of air conditioning is more optimized.

5, water-repellent aluminum foil

Water-repellent aluminum foil is also called water-repellent aluminum foil, its surface properties and hydrophilic aluminum foil is the opposite. That is, condensate condensation to the surface of the aluminum foil when the contact angle with aluminum foil is larger, generally at 75. above. The higher the angle, the better the water repulsion performance. The ultimate purpose of using aqueous aluminum foil is the same as that of hydrophilic aluminum foil, i.e. to prevent condensate from remaining between heat exchange sheets. The difference is that water-repellent aluminum foil is to remove condensate between heat exchange sheets by increasing the contact angle between condensate and heat exchange sheet, so that condensate forms water droplets that are easy to slip.

6, self-lubricating aluminum foil

Air conditioning heat exchange film in the process of processing and production of the general first to add lubricant to its surface, and then punch the edge, and finally with trichloroethylene to wash the lubricant away. Since trichloroethylene is harmful to humans, self-lubricating aluminum foil is produced in order to reduce this process. Self-lubricating aluminum foil as the name implies, that is, in its punching process does not need to be separately lubricated oil, its lubrication when punching by the aluminum foil surface pre-treated film to bear. Since no special lubricants are required, subsequent trichloroethylene cleaning and drying processes are eliminated.

7, mold-proof aluminum foil

Mold-proof aluminum foil is mainly used in the indoor part of the empty wither, its main function is to prevent heat exchange sheet due to the use or placement time is long to produce surface mold, thereby significantly improving the air withering ventilation quality, to prevent the production of abnormal odor, effectively improve the air-conditioning indoor environment.