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Publish Time: 2025-06-19 Origin:https://www.hmaluminumsupply.com
Aluminum brazing sheet is usually a composite material consisting of a core material and a cladding layer. This structural design gives it excellent comprehensive performance.
3 series aluminum alloys: 3003, 3A21, etc. belong to this series of alloys and are common choices for aluminum brazing plate. They have good strength and processing properties, and can provide stable structural support for brazing plates. At the same time, their thermal conductivity is also relatively good, playing a key role in applications such as heat exchangers that require efficient heat dissipation.
6 series aluminum alloys: Alloys such as 6061 and 6063 have medium strength and good corrosion resistance. In some brazing plate applications with high requirements for strength and corrosion resistance, 6-series alloy core materials can meet stringent use conditions. However, due to its relatively low initial melting temperature, the temperature needs to be strictly controlled during the brazing process to prevent overburning and ensure that the material properties are not damaged.
4 series aluminum alloy (aluminum-silicon alloy): 4343, 4045, etc. are typical 4 series brazing alloys aluminum. Their melting points are relatively low, generally between 577-610℃, while the melting points of core materials such as 3-series aluminum alloys are around 630-660℃. This melting point difference allows the 4-series alloy of the cladding layer to melt first during the brazing process, fill the joint gap, and achieve a strong bond with the core material and other connected materials.
Other special alloys: In some high-end applications or specific needs, alloys containing specific trace elements are also used as coatings to improve certain properties of brazing plates. For example, adding a small amount of copper, zinc and other elements can further adjust the melting point, fluidity and bonding strength of the alloy with the core material to meet the use requirements under different working conditions.
Automotive industry
Heat exchanger: Aluminum brazing plates are widely used in heat exchange components such as radiators, air conditioner condensers, and intercoolers of automobiles. In the radiator, the heat sinks and pipes made of aluminum brazing plates are connected by brazing to form an efficient heat dissipation system.
Home appliance field
Aluminum brazing plates play an important role in the condensers and evaporators of household air conditioners. Its efficient heat transfer performance enables the air conditioner to quickly achieve cooling or heating effects and improve energy utilization efficiency. The corrosion resistance of aluminum brazing plates ensures that it will not be damaged by environmental factors such as humidity during long-term use, extending the service life of the air conditioner.
The cooling system of some high-end refrigerators has also begun to use aluminum brazing plates to improve heat dissipation efficiency and optimize the refrigeration performance of refrigerators.
Industrial field
Aluminum brazing plates are also widely used in industrial heat exchangers, power station air cooling systems, etc. In industrial production, many processes generate a lot of heat, which needs to be recovered or dissipated through heat exchangers.
Heat exchangers made of aluminum brazing plates can meet the needs of efficient heat exchange in industrial production due to their compact structure, high heat dissipation efficiency, and good collapse resistance, while reducing equipment costs and floor space.
With the development of dozens of years, we, Haomei Aluminum has solid base to provide clean aluminum material for the high-end applications including lithium-ion battery, lightweight automobile body, 3c products, aluminum brazing and other special uses.