Copper wire with insulating layer and manufacture method thereof

Abstract

The invention discloses a copper wire with an insulating layer and a manufacture method thereof. The copper wire comprises a copper core, a pure aluminum layer and an aluminum oxide layer, wherein the pure aluminum layer is compounded to the outer surface of the copper core through a metal composite technology, and the aluminum oxide layer which is prepared through hard anode oxidation treatment is arranged on the outer surface of the pure aluminum layer. In the method, the pure aluminum layer is compounded to the outer surface of the copper core through an extrusion-drawing method metal composite technology and is an auxiliary layer added in order to prepare the aluminum oxide layer, and the hard anode oxidation treatment is carried out on the outer surface of the pure aluminum layer so as to form the aluminum oxide layer. Because the copper wire manufactured by using the method is adopted, the aluminum oxide layer is arranged on the outer surface of the copper wire; the copper wire belongs to ceramic materials per se and has the advantages of high temperature resistance and insulation, therefore, when used at the temperature of below 400 DEG C, the copper wire can also keep favorable insulating performance, is safe to use and has the temperature exceeding a copper wire canned by conventional plastics by more than one time.

Description

technical field [0001] The invention relates to a copper wire for power transmission, in particular to a copper wire with an insulating layer and a manufacturing method thereof. Background technique [0002] At present, ordinary copper power transmission wires use plastic outer sheaths as insulation layers, which can meet the electrical insulation requirements under general temperature conditions. However, when the temperature of the operating environment reaches 150-200°C, or the temperature of the wire itself reaches 150-200°C, the plastic insulating layer begins to soften and loses its insulating effect, which may easily cause a short circuit or fire. Contents of the invention [0003] In order to solve the above-mentioned problems in the prior art, the object of the present invention is to provide a copper wire with an insulating layer that can be used in a relatively high temperature environment and a manufacturing method thereof. [0004] In order to achieve the abo...

AI Technical Summary

Problems solved by technology

However, when the temperature of the operating environment reaches 150-200°C, or the temperature of the wire itself reaches 150-200°C, the plastic insulating layer begins to soften and lose its insulating effect, which may easily cause short circuits or fires.

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