High-conductivity and high-heat conductivity aluminum-iron-nickel-rare earth alloy

Abstract

The invention relates to the technical field of aluminum alloys and specifically provides an ultrahigh-conductivity and high-heat conductivity aluminum alloy. The ultrahigh-conductivity and high-heat conductivity aluminum alloy is characterized by comprising 0.2-0.6% by mass of Fe, 0.3-0.8% by mass of Ni and 0.2-0.6% by mass of rare earth element Ce or La or mixture of Ce and La; meanwhile, one or two or three in an additive A is additionally added, the additive A is Mg, Cu, Mn or the mixture thereof, the mass content of each is 0.1-0.5%, and the content of the total additive is controlled within 0.9%; meanwhile, other impurities are controlled as follows: the individual content is less than 0.03% and the total content is less than 0.1%; the balance is Al and inevitable impurities. The aluminum alloy has high conductivity of above 61.8% IACS, excellent heat conductivity and a heat conduction coefficient of 225W/m.k or above, thereby being an excellent aluminum alloy cable material and high-performance heat conduction material.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, and specifically provides an aluminum alloy with ultrahigh electrical and thermal conductivity. Background technique [0002] High-performance aluminum alloys are gradually replacing pure copper due to their good mechanical properties and electrical conductivity, and are widely used in various cables. Aluminum alloy power cables are currently widely used in various fields of the national economy, such as ordinary houses, high-rise buildings, elevators, large and small supermarkets, subways, airports, stations, hospitals, banks, office buildings, hotels, postal and telecommunications buildings, exhibition halls, Libraries, museums, ancient buildings, schools, power buildings, public entertainment places, tunnels, underground buildings, warehouses, etc., can also be used in metallurgy, steel, coke, coal mines, power plants, power transmission and substations, shipbuilding, petroleum, chemic...

AI Technical Summary

Problems solved by technology

[0006] At present, the most widely used cable aluminum alloy is 8030\8176, but the alloy still has great improvement and room for improvement in terms of processing ductility and heat resistance life performance.

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