Heat-conducting aluminum alloy and application thereof

Abstract

The invention discloses a heat-conducting aluminum alloy and application thereof. The heat-conducting aluminum alloy comprises alloying elements, unavoidable impurities and the balance aluminum element. By taking the total weight of the heat-conducting aluminum alloy as a benchmark, the alloying elements comprise 5.0-11.0% of Si, 0.4-1.0% of Fe, 0.2-1.0% of Mg, less than 0.1% of Zn, less than 0.1%of Mn, less than 0.1% of Sr and less than 0.1% of Cu. According to the prepared heat-conducting aluminum alloy, the tensile strength is not less than 250 MPa, the yield strength is not less than 150MPa, the ductility is not less than 3.5%, and the heat conducting coefficient is not less than 150 W / (m.K); and the mechanical property is high, the flow forming performance is good, and good heat conductivity can further be maintained through repeated recycling.

Description

technical field [0001] The present disclosure relates to the technical field of aluminum alloys, in particular, to a heat-conducting aluminum alloy and its application. Background technique [0002] Aluminum alloy materials are widely used in aviation, aerospace, electronic and electrical products, automobiles, machinery manufacturing and other fields because of their low density, high strength, good plasticity, electrical conductivity, thermal conductivity, and excellent corrosion resistance. [0003] As electronic and electrical products tend to be miniaturized in recent years, the thermal conductivity of conventional aluminum alloy materials such as ADC12 on the market is only 96W / (m·K), which has been difficult to meet the needs of high-strength and high-thermal conductivity of electronic and electrical products, so There is an urgent need to develop a new aluminum alloy material that has high thermal conductivity while having high mechanical properties and low cost. C...

AI Technical Summary

Problems solved by technology

[0003] As electronic and electrical products tend to be miniaturized in recent years, the thermal conductivity of existing conventional aluminum alloy materials such as ADC12 on the market is only 96W / (m·K), which has been difficult to meet the high-strength and high-thermal conductivity requirements of electronic and electrical products, so There is an urgent need to develop a new aluminum alloy material that has high thermal conductivity while having high mechanical properties and low cost

Images