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Aluminum alloy conductor material and preparation method thereof

An aluminum alloy conductor and alloy technology, applied in the field of aluminum alloy, can solve the problems of decreased tensile strength, poor cable performance, low tensile strength, etc., and achieve the effect of improving strength, improving heat resistance and good mechanical properties

Active Publication Date: 2019-07-23
国网河南省电力公司方城县供电公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the tensile strength of the aluminum alloy of this invention is lower than 350 MPa, and the tensile strength drops seriously when the temperature is significantly higher than room temperature. When the temperature is high in summer, the performance of the cable is not good.

Method used

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  • Aluminum alloy conductor material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] An aluminum alloy conductor material, made of the following components in mass percentage: Fe0.2%, Cu0.05%, Mg0.12%, Ca0.1%, V0.01%, Yb0.03%, the balance is Al and unavoidable impurities.

[0029] The preparation method of the aluminum alloy conductor material of this embodiment comprises the following steps:

[0030] Step S1: Carry out alloy melting according to the above composition ratio to obtain alloy melt;

[0031] Step S2: deslagging and refining the alloy melt in sequence, cooling and extruding the refined alloy melt to obtain an ingot;

[0032] Step S3: Heat the ingot to 470°C at a rate of 0.5°C / min, hold it for 9 hours, lower it to 355°C, hold it for 1 hour, then raise the temperature to 430°C for rolling, and heat the rolled alloy material to 520°C ℃, after holding for 4 hours, water quenched to room temperature;

[0033] Step S4: performing aging treatment on the water-quenched alloy material to obtain an aluminum alloy conductor material.

[0034] In th...

Embodiment 2

[0040] An aluminum alloy conductor material, made of the following components in mass percentage: Fe0.3%, Cu0.09%, Mg0.15%, Ca0.18%, V0.03%, Yb0.08%, the balance is Al and unavoidable impurities.

[0041] The preparation method of the aluminum alloy conductor material of this embodiment comprises the following steps:

[0042] Step S1: Carry out alloy melting according to the above composition ratio to obtain alloy melt;

[0043] Step S2: deslagging and refining the alloy melt in sequence, cooling and extruding the refined alloy melt to obtain an ingot;

[0044] Step S3: raise the temperature of the ingot to 475°C at a rate of 0.6°C / min, keep it warm for 10 hours, lower it to 360°C, hold it for 1 hour, then raise the temperature to 435°C for rolling, and heat the rolled alloy material to 520°C ℃, after holding for 4 hours, water quenched to room temperature;

[0045] Step S4: performing aging treatment on the water-quenched alloy material to obtain an aluminum alloy conducto...

Embodiment 3

[0051] An aluminum alloy conductor material, made of the following components in mass percentage: Fe0.42%, Cu0.15%, Mg0.31%, Ca0.25%, V0.05%, Yb0.12%, the balance is Al and unavoidable impurities.

[0052] A method for preparing an aluminum alloy conductor material, comprising the following steps:

[0053] Step S1: Carry out alloy melting according to the above composition ratio to obtain alloy melt;

[0054] Step S2: deslagging and refining the alloy melt in sequence, cooling and extruding the refined alloy melt to obtain an ingot;

[0055] Step S3: Heat the ingot to 480°C at a rate of 0.6°C / min, keep it warm for 8 hours, lower it to 365°C, hold it for 1 hour, then raise the temperature to 440°C for rolling, and heat the rolled alloy material to 520°C ℃, after holding for 4 hours, water quenched to room temperature;

[0056] Step S4: performing aging treatment on the water-quenched alloy material to obtain an aluminum alloy conductor material.

[0057] In the present inve...

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Abstract

The invention provides an aluminum alloy conductor material, and belongs to the technical field of coating components. The aluminum alloy conductor material is prepared from the following components of, by mass, 0.2-0.7% of Fe, 0.05-0.2% of Cu, 0.12-0.35% of Mg, 0.1-0.3% of Ca, 0.01-0.07% of V, 0.03-0.15% of Yb and the balance Al and unavoidable impurities. By optimizing the aluminum alloy components and a preparation process, and the obtained aluminum alloy conductor material can be used as aluminum alloy cable cores, has high electric conductivity and good mechanical properties.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to an aluminum alloy conductor material and a preparation method thereof. Background technique [0002] Electrical copper and aluminum are the main conductor materials of wire and cable. China has few copper resources and its dependence on foreign countries is as high as 70%, while China has abundant aluminum resources and a high self-sufficiency rate. In recent years, my country has vigorously advocated "using aluminum to save copper", and successively issued "GB / T30552-2014 Aluminum Alloy Wire for Cable Conductors", "NB / T42051-2015 Rated Voltage 0.6 / 1kV Aluminum Alloy Conductor XLPE Insulated Cable ", "GBT31840-2015 Rated Voltage 1kV to 35kV Aluminum Alloy Core Extruded Insulated Power Cable" and many other aluminum alloy cable standards. As a carrier for transmitting electric energy, the most basic properties pursued by aluminum alloy conductors are electrical conductivi...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C1/02C22C1/06C22F1/04H01B1/02
CPCC22C1/026C22C1/06C22C21/00C22F1/04H01B1/023
Inventor 常雪松徐福延李清亮常雪梅刘红梅赵世鑫张颖
Owner 国网河南省电力公司方城县供电公司
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