Copper-coated aluminum electromagnetic wire

Abstract

The invention is a copper-clad aluminum conductor magnetic wire, the inner core is aluminum wire clad with a layer of cylinder copper sheet, the magnetic wire can also be a magnetic wire having two or more parallel or winding copper-clad aluminum conductors, the magnetic wire is covered with an insulting layer. Or insulating materials such as paper, insulating paint or fiberglass are covered outside the conductor to form a magnetic wire with an insulating layer. The copper-clad aluminum core magnetic wire has same conductivity as that of same-sized copper-core magnetic wire having same size, light weight, processing simplicity and usage convenience, saves more than 80% copper, effectively lowers cost, and overcomes the following drawbacks: easy oxidability, high resistance, poor corrosion resistance and mechanical property of the aluminum-core magnetic wire.

Description

technical field [0001] The invention relates to an electromagnetic wire with a copper-clad aluminum conductor as an electromagnetic wire and polyvinyl chloride, polyethylene, cross-linked polyethylene or rubber as an insulating material. Background technique [0002] The copper core PVC insulated wire widely used at present uses copper as the magnet wire. my country is a country lacking in copper resources, and a large amount of copper is imported from abroad every year. As a non-ferrous metal with huge demand, the price of copper in the international market is constantly rising. Since the beginning of this year, the spot price has soared from 47,000 yuan per ton at the beginning of the year to 73,000 yuan. Saving copper is not only the need of enterprises to reduce costs, but also a subject of national strategic significance. [0003] Aluminum is a non-ferrous metal whose conductivity is second only to copper. my country has very rich reserves and strong production and pr...

AI Technical Summary

Problems solved by technology

However, because the surface of aluminum is very easy to oxidize, the oxide layer is relatively tough, resulting in high contact resistance, corrosion resistance and mechanical properties, especially the strength is not as good as copper, and the application range is very limited.

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