Aluminum foil for heat exchangers and automotive applications
The composite aluminum foil for the radiator is made of AL-Mn alloy as the core material, coated with AL-Si alloy brazing filler metal with a thickness of 10% on both sides, and is made by hot-rolling composite technology. This product is mainly used for automotive heat exchanger fins. It not only requires excellent surface quality, precise size and flat plate shape, but also requires uniform structure and good forming performance, especially the uniformity and weldability of the coating layer. Extremely strict.
In the 1980s, due to the development of vacuum brazing technology, 50% of the cars produced in the United States were equipped with vacuum brazing aluminum foil heat exchangers. By the 1990s, the utilization rate of composite brazing aluminum foil for automobile heat exchangers in industrially developed countries had reached More than 90. The manufacture of all-aluminum radiators for automobiles in my country began in the early 1990s. Because the mechanical properties of the base alloy and the high-silicon cladding alloy are very different, the composite foil production process is complicated and the production is difficult, making some aluminum processing companies such as the Northeast Light Alloy Processing Factory and a few manufacturers limited to small-batch supply. Large-scale production has not yet formed, and it is basically dependent on imports. With the increase in the aluminization rate of automotive heat exchangers, the demand for them has also increased dramatically. The previous method of blindly relying on imports can no longer meet the development needs of my country's automobile industry. Based on this, build a high-tech, distinctive, and specialized composite brazing aluminum foil production line to meet the needs of the automotive aluminum exchanger market, ease the domestic tension between supply and demand, reduce the production cost of my country’s automobiles, and enhance international competitiveness for the development of my country’s economy. Has important meaning.
Composite brazing aluminum foil is a new type of high-performance aluminum alloy of the highest grade among aluminum processed products. It has the characteristics of high technical content and high added value. This sandwich structure aluminum alloy composite foil has been widely used in automotive heat exchangers, such as automotive water tank radiators, automotive air conditioning condensers, and evaporation due to its advantages of light weight, corrosion resistance, good brazing properties and reliable performance. 器等。 The scale of this project can be adjusted accordingly according to the needs of the partners.
Factory made aluminum foil for car radiators Automobile radiator aluminum foil material has high strength, good collapse resistance and heat exchange ability, and good sag resistance when brazing at high temperature
