Because aluminum foil has a series of good properties, its application range is very wide. From a global perspective, it is mainly used in three major fields: packaging, electrical and construction, among which packaging has the largest demand. The largest consumption of aluminum foil in my country is cigarette packaging, accounting for more than 50%, followed by the electrolytic capacitor industry, accounting for about 15%, and the third place is flexible packaging and other packaging industries, accounting for about 15%.
Industrial manufacturing raw and auxiliary materials: air-conditioning foil, automobile brazing composite aluminum foil, thermal insulation aluminum foil products, aluminum foil for PS plate base, etc.
1. Air conditioning foil:
(1) The thickness of air conditioning foil is thinner; as the forming method of air conditioner heat dissipation fins changes from traditional stretch molding to thinning stretch molding (high-speed thin-walling), the thickness of aluminum foil tends to be thinner, and will be from the current 0.095 mm thinned to 0.09mm-0.08mm.
(2) The application proportion of hydrophilic aluminum foil will increase; hydrophilic foil is coated with an anti-corrosion inorganic coating and a hydrophilic organic coating on the surface of the aluminum foil. It also has the functions of anti-corrosion, anti-mold, and no odor. Mainly Used in radiators (mainly used in air conditioners, but also in some capacitors, etc.). Good formability and no wear on the mold; extremely strong stamping resistance, solvent resistance, and heat resistance: the air flow is small, the heat exchange rate can generally be increased by 10%-15% compared to light foil, and the heat sink can reduce wind resistance , reduce noise, reduce energy consumption and extend service life. Therefore, the proportion of hydrophilic aluminum foil in the total volume of air-conditioning aluminum foil will increase, and is expected to reach a maximum of 80% by 2010.
(3) The varieties of hydrophilic aluminum foil will be further refined: in order to meet the segmentation requirements of the household air conditioner market, highly corrosion-resistant hydrophilic aluminum foil, antibacterial hydrophilic aluminum foil, super hydrophilic aluminum foil, and nano-organic hydrophilic aluminum foil will be industrialized change.
(4) The mandatory improvement of air-conditioning refrigeration efficiency has promoted the increase in the consumption of aluminum foil for single-unit air conditioners.
2. Automotive brazing composite aluminum foil:
The performance and quality of needle welded composite aluminum foil are reflected in excellent surface quality, precise size, flat plate shape, uniform alloy structure, good formability, uniform coating layer, good weldability, and its heat resistance, collapse resistance and weldability further improvements. The lightweighting of automobiles has led to an increase in the aluminization rate, and aluminum foil will replace copper foil for radiators of cars and light vehicles. The brazed composite aluminum foil market for automotive heat exchangers is a growth market and will develop faster than other aluminum foil varieties. It is estimated that by 2009, the sales volume of automotive soldering composite aluminum foil will reach 52,000 tons.
3. Insulation aluminum foil products:
Thermal insulation aluminum foil products will be the fastest growing variety among aluminum foils used in construction: Under the increasingly tight energy situation, more energy-saving building materials are increasingly needed. It is the cheapest and fastest to use thermal insulation materials to achieve energy saving in the construction industry. Methods. From abroad, Japan uses aluminum foil corrugated cardboard, aluminum foil mineral wool board, and aluminum foil polyethylene film frame board for building insulation of factories, residences, and livestock fences; France uses aluminum foil asbestos corrugated board and aluminum foil foam sandwich board for roof insulation and insulation. Sound-absorbing materials; Russia uses aluminum foil composite insulation materials for wall, roof and floor insulation. Domestic building insulation and energy conservation are also showing a new development trend. Aluminum foil insulation roofs have been widely used in Henan, Jiangsu, Sichuan, Guizhou, Zhejiang, Hubei, and Jiangxi, and this trend will further expand.
4. Aluminum foil for PS plate base:
With the development of my country's economy and the improvement of people's living standards, my country's packaging and printing industries continue to grow. The output value of the printing industry is increasing at an average annual rate of more than 20%. Aluminum foil for PS plate base has become one of the aluminum foil varieties with the fastest growth potential in the market.