Copper-clad aluminum alloy cable

Abstract

The invention discloses a copper-clad aluminum alloy cable. The copper-clad aluminum alloy cable comprises a conductor which comprises an inner core and an outer core, the inner and outer cores form a double-metal concentric circle structure, the inner core is made of an aluminum alloy, and the outer core is made of a copper alloy. The aluminum alloy inner core comprises, by mass, 0.10-0.85% of Cu, 0.15-0.25% of B, 0.01-0.03% of Ce and the balance Al and inevitable impurities. The copper alloy outer core comprises, by mass, 0.08-0.18% of Al, 0.85-1.15% of Mg, 0.01-0.02% of La and the balance Cu and inevitable impurities. A shielding layer, an insulating layer and a high-temperature-resistant layer cover the conductor sequentially. According to the copper-clad aluminum alloy cable, components of the aluminum alloy and the copper alloy are improved, the electrical conductivity of the inner core and the strength of the outer core are improved, additionally, the inner core and the outer core are connected closely by using a continuous casting process, and the fact that the electrical conductivity and the toughness of the inner and outer cores are affected due to oxidation of the contact surface between the inner and outer cores is avoided.

Description

technical field [0001] The invention relates to the technical field of wires and cables, in particular to a copper-clad aluminum alloy cable. Background technique [0002] As a transmission medium, the most important thing for cables is to transmit electric energy, but resistance is the most important factor affecting the efficiency of cable electric transmission. In the prior art, many use pure copper as the conductor. Although this can improve the conductivity of the conductor, it also reduces the mechanical performance of the cable while improving the conductivity. Therefore, the two are a contradiction. Therefore, it is necessary to develop a new type of cable that can improve these two properties at the same time. Contents of the invention [0003] In order to solve the above problems, the present invention aims to provide a copper-clad aluminum alloy cable, which can simultaneously improve the electrical conductivity and mechanical properties of the cable, and can a...

AI Technical Summary

Problems solved by technology

In the prior art, many use pure copper as the conductor. Although this can improve the conductivity of the conductor, it also reduces the mechanical properties of the cable while improving the conductivity. Therefore, the two are a contradiction.