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A rare earth aluminum alloy enameled wire

An aluminum alloy and enameled wire technology, applied in the field of enameled wire, can solve the problems of easily reducing the mechanical strength and electrical conductivity, affecting the super strength of aluminum enameled wire, and high tensile property breakage rate, so as to reduce the molar polarizability and enhance the resistance to electricity. The effect of halo aging, uniform distribution inside

Active Publication Date: 2021-01-26
安徽中青欣意铝合金电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the electrician's round aluminum rod produced at the existing technical level will have problems such as low strength and high breakage rate when the tensile performance cannot match the drawn filament (0.21mm in the middle), which greatly affects the super strength of the aluminum enameled wire. Development in the ultra-fine direction, at the same time, metal aluminum is extremely active, easy to oxidize, easy to reduce mechanical strength and electrical conductivity, and has a different resistivity from copper, which is 1.7×10 -8 (Ω / m), aluminum is 2.9×10 -8 (Ω / m), when passing the same current, the aluminum wire generates a lot of heat, so it is easy to have a fault point at the joint, so it needs to be improved in the preparation of aluminum enameled wire, optimize the alloy composition, and make up for the mechanical strength of aluminum, Problems with conductivity and heat generation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]A rare earth aluminum alloy enameled wire, comprising a rare earth aluminum alloy conductive wire core and an insulating paint layer. The insulating paint layer sequentially covers the first paint layer, the second paint layer and the third paint layer on the conductive wire core from the inside to the outside. Paint layer composition;

[0039]Wherein, the first paint layer is a polyamic acid dielectric layer; the second paint layer is a polyamic acid thermally conductive layer; and the third paint layer is a polyamic acid antioxidant layer.

[0040]The raw material components in the conductive core are as follows by weight: 99.45 parts of aluminum, 0.245 parts of copper, 0.1 parts of zinc, and 0.005 parts of cerium.

[0041]The preparation method of the conductive wire core includes the following steps:

[0042](1) Prepare raw materials according to the quality ratio, put aluminum into the continuous casting furnace and heat and melt into aluminum liquid, then put copper, zinc, and ceriu...

Embodiment 2

[0061]A rare earth aluminum alloy enameled wire, comprising a rare earth aluminum alloy conductive wire core and an insulating paint layer. The insulating paint layer sequentially covers the first paint layer, the second paint layer and the third paint layer on the conductive wire core from the inside to the outside. Paint layer composition;

[0062]Wherein, the first paint layer is a polyamic acid dielectric layer; the second paint layer is a polyamic acid thermally conductive layer; and the third paint layer is a polyamic acid antioxidant layer.

[0063]The raw material components in the conductive wire core are as follows by weight: 99.65 parts of aluminum, 0.445 parts of copper, 0.2 parts of zinc, and 0.025 parts of cerium.

[0064]The preparation method of the conductive wire core includes the following steps:

[0065](1) Prepare raw materials according to the mass ratio, put aluminum into the continuous casting furnace and heat it to melt into aluminum liquid, then put copper, zinc, and c...

Embodiment 3

[0084]A rare earth aluminum alloy enameled wire, comprising a rare earth aluminum alloy conductive wire core and an insulating paint layer. The insulating paint layer sequentially covers the first paint layer, the second paint layer and the third paint layer on the conductive wire core from the inside to the outside. Paint layer composition;

[0085]Wherein, the first paint layer is a polyamic acid dielectric layer; the second paint layer is a polyamic acid thermally conductive layer; and the third paint layer is a polyamic acid antioxidant layer.

[0086]The raw material components in the conductive core are 99.5 parts by weight of aluminum, 0.345 parts of copper, 0.14 parts of zinc, and 0.015 parts of cerium.

[0087]The preparation method of the conductive wire core includes the following steps:

[0088](1) Prepare raw materials according to the mass ratio, put aluminum into the continuous casting furnace and heat it to melt into aluminum liquid, then put copper, zinc, and cerium into the al...

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Abstract

The invention discloses a rare-earth aluminum alloy enameled wire, which comprises a conductive wire core and an insulating varnish layer. The conductive wire core is made of a rare-earth aluminum alloy, and the insulating varnish layer is sequentially covered on the conductive wire core from inside to outside. The first paint layer, the second paint layer and the third paint layer are composed; wherein, the first paint layer is a polyamic acid dielectric layer; the second paint layer is a polyamic acid heat-conducting layer; the third paint The material layer is a polyamic acid anti-oxidation layer. The enameled wire of the present invention is coated with different paint layers, taking into account the mechanical and electrical characteristics of the product, and significantly improving its use value. At the same time, the raw materials are conveniently obtained, the production process is simplified, the defective rate is reduced, the production efficiency is improved, and the practical sex and cost performance.

Description

Technical field[0001]The invention belongs to the technical field of enameled wires, and particularly relates to a rare earth aluminum alloy enameled wire.Background technique[0002]Enameled wire is the main raw material for products such as motors, electrical appliances and household appliances. Especially in recent years, the electric power industry has achieved sustained and rapid growth. The rapid development of household appliances has brought a broader field to the application of enameled wires. Higher requirements are put forward for enameled wire. For this reason, the product structure adjustment of enameled wire is inevitable, and the matching raw materials, enameled technology, process equipment and testing methods are also in urgent need of development and research.[0003]The conductors of enameled wires are mainly copper and aluminum. Aluminum enameled wires are made from special poles for aluminum enameled wires. Especially ultra-fine aluminum enameled wires (0.08-0.12mm)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/02H01B7/28H01B7/42H01B1/02H01B3/30H01B13/00H01B13/06H01B13/22C09D179/08C09D5/08C09D5/25C09D7/61C22C21/18C22C1/02
CPCC08K2003/2241C09D5/08C09D179/08C22C1/026C22C21/18C09D7/61H01B1/023H01B3/306H01B7/0225H01B7/28H01B7/428H01B13/00H01B13/0006H01B13/002H01B13/065H01B13/22C08K3/042C08K3/22C08K3/36
Inventor 惠小兵李军王华俊瞿其勇严忠岐李世珍
Owner 安徽中青欣意铝合金电缆有限公司