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Aluminum alloy conductor material with high compressive creep resistance and low resistivity and preparation method thereof, and cable

An aluminum alloy conductor and low resistivity technology, applied in the field of aluminum alloy materials, can solve the problems of low resistivity, inability to take into account the compression creep performance and electrical conductivity at the same time, achieve low resistivity performance, and improve high temperature creep resistance The effect of simple performance and process

Inactive Publication Date: 2015-09-23
HUAWEI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the first aspect of the embodiment of the present invention provides a high compressive creep and low resistivity aluminum alloy conductor material, which has both high compressive creep performance and low resistivity performance, and is used to solve the problems in the prior art. Aluminum alloy conductors cannot take into account the problem of compressive creep performance and electrical conductivity at the same time

Method used

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  • Aluminum alloy conductor material with high compressive creep resistance and low resistivity and preparation method thereof, and cable
  • Aluminum alloy conductor material with high compressive creep resistance and low resistivity and preparation method thereof, and cable
  • Aluminum alloy conductor material with high compressive creep resistance and low resistivity and preparation method thereof, and cable

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preparation example Construction

[0055] In the second aspect, an embodiment of the present invention provides a method for preparing a high compressive creep low resistivity aluminum alloy conductor material, comprising the following steps:

[0056] According to the designed composition ratio of high compressive creep and low resistivity aluminum alloy conductor material, first add pure aluminum ingot into the melting furnace, after the aluminum ingot is melted, add aluminum copper alloy, aluminum iron alloy, aluminum zirconium alloy, aluminum yttrium alloy Smelting, followed by electromagnetic stirring, refining, on-line degassing with argon gas, filtering, and casting to obtain a billet; then rolling the billet for 9 to 16 passes, followed by aging treatment, and after cooling, The high compressive creep low resistivity aluminum alloy conductor material is obtained, and the high compressive creep low resistivity aluminum alloy conductor material includes the following components in mass percentage: 0.6% to 1...

Embodiment 1

[0078] An aluminum alloy conductor material with high compression resistance, creep resistance and low resistivity, including the following components in mass percentage: iron: 1.0%, copper: 0.15%, zirconium: 0.03%, yttrium: 0.07%, aluminum: 98.6%, and the rest is Impurities.

[0079] The preparation method of the high compressive creep and low resistivity aluminum alloy conductor material comprises the following steps:

[0080] According to the designed composition ratio of high compressive creep and low resistivity aluminum alloy conductor material, first add pure aluminum ingot into the melting furnace, after the aluminum ingot is melted, add aluminum copper alloy, aluminum iron alloy, aluminum zirconium alloy, aluminum yttrium alloy in sequence Smelting, followed by electromagnetic stirring, refining, on-line degassing with argon, filtration, and casting to obtain the billet; the casting conditions are: at a melt temperature of 700°C, using a casting process of 3 tons per ...

Embodiment 2

[0086] An aluminum alloy conductor material with high compression resistance, creep resistance and low resistivity, including the following components in mass percentage: iron: 0.7%, copper: 0.12%, zirconium: 0.06%, yttrium: 0.05%, aluminum: 98.9%, and the rest is Impurities.

[0087] The preparation method of the high compressive creep and low resistivity aluminum alloy conductor material comprises the following steps:

[0088]According to the designed composition ratio of high compressive creep and low resistivity aluminum alloy conductor material, first add pure aluminum ingot into the melting furnace, after the aluminum ingot is melted, add aluminum copper alloy, aluminum iron alloy, aluminum zirconium alloy, aluminum yttrium alloy in sequence Smelting, followed by electromagnetic stirring, refining, on-line degassing with argon, filtration, and casting in order to obtain the billet; the casting conditions are: at a melt temperature of 680 ° C, using a casting process of 3...

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Abstract

The embodiment of the invention provides an aluminum alloy conductor material with high compressive creep resistance and low resistivity, wherein the aluminum alloy conductor material includes the following components by the mass percentage: 0.6%-1.2% of iron, 0.1%-0.3% of copper, 0.01%-0.1% of zirconium, 0.05%-0.12% of yttrium, and aluminum and unavoidable impurities. The aluminum alloy conductor material has both high compressive creep resistance and low resistivity, the resistivity is less than 0.0305 ohm*mm<2> / m, and requirements of aluminum alloy rods for copper-cladded aluminum alloy wires can be met; when applied to a current-carrying cable of a low-voltage circuit, the aluminum alloy conductor material can greatly improve crimping reliability of the aluminum cable, and besides, has a larger current-carrying capacity. The embodiment of the invention also provides a preparation method of the aluminum alloy conductor material with high compressive creep resistance and low resistivity and provides a cable.

Description

technical field [0001] The invention relates to the field of aluminum alloy materials, in particular to an aluminum alloy conductor material with high compression resistance and creep resistance and low resistivity, a preparation method thereof and a cable. Background technique [0002] In current-carrying conductors, aluminum alloy conductors are prone to deformation as the temperature of cables and joints changes over time. This deformation is a slow plastic deformation that occurs over time under a compressive stress state, which is called compression creep. Since the compression creep of common aluminum alloy conductors is much higher than that of copper, it will increase the resistance value at the joint, which may cause the risk of sparking at the joint. However, the compressive creep resistance and electrical conductivity of aluminum alloy conductors often cannot be taken into account at the same time. How to adjust the formula to develop an aluminum alloy conductor ...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C1/03C22F1/04H01B1/02
Inventor 涂修宇袁文文邓庆龙方炜张伟民
Owner HUAWEI TECH CO LTD
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