Copper-coated aluminum electromagnetic wire

A technology of electromagnetic wire and copper-clad aluminum, which is applied in the field of electromagnetic wire, can solve the problems of limited application range, corrosion resistance and mechanical performance strength not as good as copper, and large contact resistance, etc., to achieve convenient use, good conductivity, and small contact resistance Effect

Inactive Publication Date: 2008-08-20
大连极速金属复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Copper-coated aluminum electromagnetic wire
  • Copper-coated aluminum electromagnetic wire
  • Copper-coated aluminum electromagnetic wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Embodiment one, a kind of circular cross-section copper clad aluminum core magnet wire of the present invention (see figure 1 , figure 2 ), the inner circle of the electromagnetic wire is an aluminum wire 6 outsourcing a layer of cylindrical copper 5 electromagnetic wire, forming a copper-clad aluminum conductor wire, a single electromagnetic wire outsourcing with polyvinyl chloride or polyethylene or cross-linked polyethylene or Layer of rubber insulating material4. The implementation plan is exactly the same as the production process of ordinary copper core wires, that is, the insulation material is extruded around the copper-clad aluminum conductor through an extruder, and then cooled, rewinded, printed and packaged to become a finished copper-clad aluminum core electromagnetic wire.

Embodiment 2

[0010] Embodiment two, a copper clad aluminum core magnet wire with a rectangular cross-section of the present invention (see image 3 , Figure 4 ), the inner core 2 of the electromagnetic wire is a rectangular aluminum wire covered with a layer of rectangular cylindrical copper-covered electromagnetic wire, forming a copper-clad aluminum conductor wire. Using copper-clad aluminum conductors as raw materials, the conductors are processed into non-insulated round or flat electromagnetic wires through traditional processes, or wrapped around the conductors with insulating materials such as paper, insulating varnish and (or) glass filaments, to form strips. Magnet wire with insulation. Magnet wires are wound into transformer coils and soaked in insulating oil to form insulated solenoid coils. The copper-clad aluminum core magnet wire has the same electrical conductivity as the copper core magnet wire of the same specification. It is light in weight, easy to process, and conven...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/00H01B3/44H01B3/28H01B3/52H01F27/28H01F5/00
Inventor 丁俊阳魏谡葛连彬葛连勋
Owner 大连极速金属复合材料有限公司
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