Brazed Aluminum Material in AC heat exchanger

With the development of automobile lightweight technology and the requirement of energy saving and consumption reduction, 100% aluminium alloy of air conditioning heat exchanger for passenger cars in China has been promoted. Copper alloy has been used in traditional automobile heat exchangers. Composite aluminium foil is used instead of copper alloy in automobile radiators, which can reduce the mass by 20%~45%.
 
Aluminum radiator consumes about 2.8 kg of aluminium foil per unit, and automobile air conditioner consumes about 4 kg of aluminium foil per unit.
The dosage of condenser and evaporator is 2.5 kg and 1.5 kg respectively.


 
Automobile heat exchange system includes condenser, evaporator, radiator of water tank, intercooler, heater, oil cooler and other components. Brazed composite aluminum strip and foil is the core material for the production of automobile heat exchanger.
 
The automobile aluminium heat exchanger is composed of aluminium tube through cooling water and radiating fins. Aluminum tube is generally made of 1xxx and 3xxx aluminium alloy by extrusion and drawing. The radiating fins are made of 3003 aluminium alloy core material,
 6951 aluminium alloy core material and with the composite foil of 4 series aluminium alloy brazing layer and 7 series aluminium alloy brazing layer to made.