[China Aluminum Network] Air conditioning is essential for summer summer vacation. When air conditioners enter millions of households, they are also constantly developing. At present, air-conditioning is gradually developing toward miniaturization, high performance, and long life. The air conditioning heat transfer sheet is also correspondingly developed toward ultra-thin and high strength. In the 1980s, the thickness of the heat exchange sheet was 0.15-0.2 mm, while the current thickness is only between 0.09 and 0.15 mm. In order to improve the life of air conditioners, reduce power consumption, improve ventilation quality, and improve cooling performance, a variety of features have been released. Air-conditioning aluminum foil according to its processing technology, performance characteristics can be divided into seven categories:
1. Non-coated aluminum foil Non-coated aluminum foil refers to an aluminum foil that has been rolled and annealed without any form of surface treatment. In China 10 years ago, aluminum foil used in air conditioning heat exchange films about 15 years ago was uncoated aluminum foil. Even at present, about 50% of the heat exchange films used in developed countries abroad are still uncoated aluminum foils, and in China, this ratio is about 60%.
2, coating aluminum foil The so-called coating aluminum foil is the surface treatment of non-coated aluminum foil to make it have some special features. In countries with rapidly developing technologies such as Japan and Germany, the use of coated aluminum foil has been used for more than 15 years. In China, the use of coated aluminum foil does not exceed 10 years.
3. Corrosion-resistant aluminum foil Corrosion-resistant aluminum foil products have a corrosion-resistant protective layer on the surface. The air-conditioning heat-exchange sheet made of this product can be used in relatively harsh areas and can significantly increase the service life of air conditioners. At the same time, due to the improvement of the corrosion resistance of the heat exchange sheet, the generation of surface corrosion powder is greatly reduced, thereby improving the ventilation quality and purifying the air in the air-conditioned room.
4, hydrophilic aluminum foil hydrophilic aluminum foil surface has a strong hydrophilicity. Hydrophilic performance is determined by the angle formed by the water that adheres to the surface of the aluminum foil. The smaller the a angle is, the better the hydrophilic property is, and on the contrary, the worse the hydrophilic property is. In general, the angle a is less than 35. That is, hydrophilic properties. Hydrophilic aluminum foil is generally used in the air conditioning condenser. Its main function is to make the moisture in the hot air condense into droplets on the heat exchange sheet and spread easily to flow down the sheet. In this way, it is possible to avoid the influence of the “overlap†of the water droplets between the heat exchange sheets on the ventilation effect of the heat exchanger, thereby improving the heat exchange rate of the air conditioner, and also saving electric energy under the condition of equal cooling capacity. At present, the general hydrophilic aluminum foil in the market has a better hydrophilicity in addition to the surface, and also has a high corrosion resistance, so that the performance of the air conditioner is further optimized.
5, hydrophobic aluminum foil Water-repellent aluminum foil, also known as water-repellent aluminum foil, its surface properties and hydrophilic aluminum foil is just the opposite. That is, when the condensed water condenses on the surface of the aluminum foil, the contact angle with the aluminum foil is relatively large, generally 75. the above. The larger the angle, the better the water repellency. The use of hydrophobic aluminum foil is the same as the end-use hydrophilic aluminum foil, ie, no condensed water remains between the heat exchange foils. The difference lies in that the hydrophobic aluminum foil is used to increase the contact angle between the condensate and the heat exchange fins so that the condensate forms a water drop that easily slides off and the purpose of removing the condensation water between the heat exchange fins is achieved.
6, self-lubricating aluminum foil air conditioning heat exchange film in the processing process generally first in its surface plus lubricants, and then punching flanging, and later washed with trichloroethylene to remove the oil. Since trichloroethylene is harmful to the human body, in order to reduce this process, a self-lubricating aluminum foil is accordingly produced. Self-lubricating aluminum foil, as its name suggests, does not need to be separately lubricated in the punching process. The lubrication of the self-lubrication aluminum foil is carried by the pre-treated film on the surface of the aluminum foil. Since no special lubrication is required, subsequent trichloroethylene cleaning and drying steps are also eliminated.
7. Mildew-proof aluminum foil The mildew-proof aluminum foil is mainly used in the empty-falling indoor unit. Its main function is to prevent the surface of the heat exchange sheet from being moldy due to the use or long time of storage, thereby significantly improving the air-falling ventilation quality and preventing the generation of The normal odor effectively improves the environment of the air-conditioned room.
Color coated Steel Coil
Color Coated Steel Coil is a product which is coated with one or several layers of organic coatings on the surface after baking, and then after surface pre-treatment (chemical degreasing and chemical conversion). Also because of the various colors of different colors of the organic paint color steel roll plate from this, referred to as color coating.
Advantages: Color coated steel coil is with light weight, beautiful appearance and good corrosion resistance. Color coated steel coil can also be directly processed. Color is generally divided into gray, blue and brick red. Color coated steel coil is mainly used in advertising, construction, household appliances, electrical appliances, furniture industry and transportation industry.
Description of the color coated steel coil:
Type: prepainted steel coil ,Galvanized Steel Coil
galvalume steel coil
Grade: Q235 Q345
Width: 600-1500mm
Thickness: 0.13-0.8mm
Zinc coat: 30-275g/m2
Length: According to your requirement
Package: Kraft paper is inside, outside is iron sheet; or according to your requirement
MOQ: 5tons except the coil with special zinc coat
Payment: T/T; L/C; Western union
Delivery: Shipped with in 10-30 days after we get your deposit.
FAQ: 1.Is free sample available?
Yes, free sample is available.
2. Does the packaging safe and arrive in good conditions?
Yes, safe Packing guarantee , all the products will arrive your door under good conditions.
3. How do you
ensure quality control?
we ensure the quality control by 2 steps:
1)after finish, our workers will check it one by one.
2)our package department will check before they pack.
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Shijiazhuang Zhouming Steel Building Materials Co., Ltd. , http://www.zmsteels.com