Composite radiator aluminum alloy material and preparation method thereof

Abstract

The invention belongs to the technical field of radiator aluminum alloy, and particularly relates to a composite radiator aluminum alloy material. The composite radiator aluminum alloy material comprises the following components of, in parts by weight, 12.2 to 13.3 parts of Si, 2.6 to 2.8 parts of Cu, 0.4 to 0.5 part of Mg, 0.1 to 0.25 part of Mn, 0.01 to 0.023 part of Sn, 0.03 to 0.05 part of Ni, 0.7 to 1.1 parts of Zn, 0.8 to 0.95 part of Fe, 0.03 to 0.04 part of Pb, 0.001 to 0.0015 part of Cd, 0.001 to 0.002 part of Ca, 0.0001 to 0.0005 part of Nd, 0.0004 to 0.0023 part of Dy, 0.001 to 0.0037 part of Pr, 0.0023 to 0.0115 part of Er, 0.0009 to 0.0075 part of Lu, 0.07 to 0.1 part of K, 0.1 to 0.15 part of Ba and 81.5 to 87.6 parts of Al. According to the composite radiator aluminum alloy material, the production process is simple, standardized, repeated and industrial production can be achieved, the aluminum alloy material required by the composite radiator is very high in fluidity during casting, the fluidity of the aluminum alloy in die casting of a deep-cavity thin-wall part in the radiator is good by optimizing the content of silicon, magnesium, iron, copper and zinc in the aluminum alloy, molding is easy, mold sticking is reduced, the corrosion resistance of an inner cavity is enhanced, rare earth elements are added into the aluminum alloy, and the strength, plasticity and pressure resistance of the aluminum alloy are improved.

Description

technical field [0001] The invention relates to a composite radiator aluminum alloy material and a preparation method thereof. The utility model belongs to the technical field of radiator aluminum alloys. Background technique [0002] According to the analysis of China Heating Network: At present, the market demand for light energy-saving heating radiators at home and abroad is strong, and the demand in the international market is very huge. In my country, the per capita living target in cities and towns in China will reach 35 square meters, and there will be 510 million square meters of cities and towns every year. Housing construction, and under the background of old house renovation, rural construction and urbanization, the heating area will be further expanded. These processes will include a large demand for mid-to-high-end light energy-saving heating radiator products, which are provided at 130W per piece Calculated on the basis of 2 square meters, the annual demand will...

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Problems solved by technology

[0004] 1. Poor thermal conductivity, heavy weight, large volume, and large installation space;

[0005] 2. The heat intensity of metal is small and the heat dissipation efficiency is low. In order to increase the heat dissipation, the heat dissipation surface area is often increased by increasing the number of heat dissipation units. Increase;

[0006] 3. The surface of the radiator made of cast iron is rough, and the surface treatment is difficult. The radiator made of steel has many solder joints, large loss, low production efficiency, poor appearance and low product grade;

[0007] 4. The inner cavity of the radiator made of cast iron is not easy to handle, and the accumulated sand causes corrosion in the inner cavity of the product after water heating, and the service life is not long

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