High-thermal-conductivity aluminum alloy and casting method thereof

Abstract

The invention discloses a high-thermal-conductivity aluminum alloy. The high-thermal-conductivity aluminum alloy comprises the following components: 0.2%-0.85% of Mg, 0.1%-0.3% of Si, 0.05%-0.2% of Cu, 0.1%-0.2% of Zn, 0.1%-0.2% of Fe, 0.1%-0.15% of Ti, 0.1%-0.15% of other alloy elements and the balance of Al. the other alloy elements comprise the combination of Mn, B, Ni, V, Cr, Zr and rare earthelements, and the ratio of the Mn to the B to the Ni to the V to the Cr to the Zr to the rare earth elements is (0.1-0.2): (0.05-0.1): (0.2-0.4): (1.0-1.2): (0.2-0.4): 0.5; the rare earth elements comprise one of Gd, La and Eu. The high-thermal-conductivity aluminum alloy disclosed by the invention has good mechanical properties while having good thermal conductivity.

Description

technical field [0001] The invention belongs to the field of aluminum alloy materials, and in particular relates to a high thermal conductivity aluminum alloy and a casting method thereof. Background technique [0002] The 6xxx series aluminum alloys are the most widely used and the largest output aluminum alloys. The existing 6xxx series aluminum alloys have been used in important industries such as aerospace, weaponry, transportation, and electric power. However, with the expansion of the application range, it is found that the strength, toughness, weldability and corrosion resistance of 6xxx series aluminum alloys have been severely challenged. [0003] Chinese patent application document CN110066932A discloses a medium-strength corrosion-resistant 6xxx series aluminum alloy and its casting method. The invention aims to solve the problems that the strength and hardness of the existing 6XXX series aluminum alloys are low, and the toughness, corrosion resistance and weldin...

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Problems solved by technology

The high thermal conductivity cast aluminum alloy of the invention has high heat transfer efficiency and can be widely used in the fields of automobiles and computers. The excellent heat transfer efficiency can promote the effective use of energy and reduce the deformation and potential damage of components caused by thermal stress. However, the invention The yield strength of the product is obviously insufficient

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