Al-Fe aluminium alloy, preparation method thereof and power cable

A technology of aluminum alloy and aluminum alloy rod, applied in the field of alloy, can solve problems such as poor fatigue resistance, quality problems, poor comprehensive performance of aluminum alloy power cables, etc.

Inactive Publication Date: 2013-05-15
ANHUI JOY SENSE CABLE
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The aluminum alloy conductor materials in the prior art are relatively excellent in electrical properties, corrosion resistance and mechanical properties, etc., but are still relatively poor in fatigue resistance, which is prone to quality problems and affects the service life or band of the aluminum alloy material. Therefore, the overall performance of aluminum alloy power cables is still poor

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  • Al-Fe aluminium alloy, preparation method thereof and power cable
  • Al-Fe aluminium alloy, preparation method thereof and power cable
  • Al-Fe aluminium alloy, preparation method thereof and power cable

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preparation example Construction

[0031] The present invention also provides a method for preparing Al-Fe aluminum alloy, including the following steps:

[0032] a) Cast aluminum alloy ingots with the following composition: 0.01~1.6wt% aluminum with Fe balance;

[0033] b) homogenizing the aluminum alloy ingot, and rolling the homogenized aluminum alloy ingot to obtain an aluminum alloy rod;

[0034] c) subjecting the aluminum alloy rod obtained in step b) to batch annealing treatment;

[0035] d) subjecting the aluminum alloy rod obtained in step c) to aging treatment to obtain an aluminum alloy.

[0036] According to the present invention, step a) is a casting process to obtain an aluminum alloy ingot. In order to fully dissolve various elements and distribute them evenly, as a preferred solution, the above casting process specifically includes: putting the aluminum ingot into a furnace and heating in a closed environment Heat it to 720~800℃ and keep it warm. After the aluminum ingot is melted, add Fe or Al-Fe master...

Embodiment 1

[0046] (1) Put the aluminum ingot into the furnace, heat it to melt and keep it at 720℃, the melting process is completed in a sealed environment; first add Fe pure metal or Al-Fe intermediate alloy, stir for 20min until fully stirred and evenly Keep the temperature for 30 minutes; then refining the above alloy melt in the furnace; add a refining agent to the alloy melt and stir it evenly, and then stand for 30 minutes for heat preservation. The melt refining is operated in a sealed environment; after refining, slagging, standing, The temperature is adjusted to 650℃, the alloy liquid is poured out of the furnace, and after the line degassing and slag removal treatment, it enters the casting machine for casting to obtain an aluminum alloy ingot. The composition of the ingot is listed in Table 1;

[0047] (2) The aluminum alloy ingot obtained in step (1) is heated at a rate of 5°C / min, the temperature is raised to 450°C, and the temperature is kept for 6 hours, and then rolled into ...

Embodiment 2

[0052] (1) Put the aluminum ingot into the furnace, heat it to melt it and keep it at 740℃. The melting process is completed in a sealed environment; first add Fe pure metal or Al-Fe intermediate alloy, stir for 20 minutes until fully stirred and evenly, and let it stand Keep the temperature for 30 minutes; then refining the above alloy melt in the furnace; add a refining agent to the alloy melt and stir it evenly, and then stand for 30 minutes for heat preservation. The melt refining is operated in a sealed environment; after refining, slagging, standing, The temperature is adjusted to 720℃, the alloy liquid is poured out of the furnace, and after the line degassing and slag removal, it enters the casting machine for casting to obtain aluminum alloy ingots. The composition of the ingots is listed in Table 1;

[0053] (2) The aluminum alloy ingot obtained in step (1) is heated at a rate of 3°C / min, the temperature is raised to 550°C, and the temperature is kept for 16 hours, and t...

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Abstract

The invention provides an Al-Fe aluminium alloy. The aluminium alloy comprises 0.01-1.6wt% of Fe and the balance of aluminium. The invention also provides a preparation method of the Al-Fe aluminium alloy. The preparation method comprises the following steps of: a) casting an aluminium alloy cast ingot comprising 0.01-1.6wt% of Fe and the balance of aluminium; b) homogenizing the aluminium alloy cast ingot and rolling the homogenized aluminium alloy cast ingot to obtain an aluminium alloy rod material; c) intermittently annealing the aluminium alloy rod material obtained in the step b); and d) aging the aluminium alloy rod material obtained in the step c), thus obtaining the aluminium alloy. The invention also provides a power cable. The aluminium alloy has better overall performances by selecting and controlling the added elements and adopting a reasonable preparation process.

Description

Technical field [0001] The invention relates to the technical field of alloys, in particular to an Al-Fe aluminum alloy, a preparation method thereof, and a power cable. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and it is widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industries. With the rapid development of science and technology and industrial economy, the demand for aluminum alloys is increasing, and the research on aluminum alloys is also intensified. The wide application of aluminum alloy has promoted the development of aluminum alloy in the power industry, and at the same time, the development of the power industry has expanded the application fields of aluminum alloy. [0003] Power cable is a resource used to transmit and distribute electric energy. Its basic structure consists of four parts: core, insulation layer, shielding layer and protecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22F1/04C21D8/08H01B1/02H01B9/00
Inventor 林泽民
Owner ANHUI JOY SENSE CABLE
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