Al-Fe-Ge-RE aluminium alloy and preparation method thereof as well as power cable

A power cable and aluminum alloy technology, applied in the field of alloys, can solve problems such as quality problems, poor comprehensive performance of aluminum alloy power cables, and potential safety hazards

Active Publication Date: 2013-04-03
ANHUI JOY SENSE CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 fatig

Method used

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  • Al-Fe-Ge-RE aluminium alloy and preparation method thereof as well as power cable
  • Al-Fe-Ge-RE aluminium alloy and preparation method thereof as well as power cable
  • Al-Fe-Ge-RE aluminium alloy and preparation method thereof as well as power cable

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preparation example Construction

[0052] The present invention also provides a method for preparing an Al-Fe-Ge-RE aluminum alloy, comprising the following steps:

[0053] a) Cast the raw materials of the following composition to obtain an aluminum alloy ingot: 0.01~1.6wt% Fe, 0.001~0.3wt% Cu, 0.001~0.3wt% Mg, 0.001~0.3wt% Co, 0.001~0.2 wt% Be, 0.001~0.3wt% Ca, 0.001~0.2wt% Zn, 0.001~0.3wt% Sr, 0.001~0.3wt% Zr, 0.002~0.25wt% Li, 0.001~0.2wt% Na, 0.002~0.25wt% K, 0.001~0.2wt% Ti, 0.001~0.15wt% V, 0.001~0.12wt% Cr, 0.001~0.12wt% Mn, 0.001~0.15wt% Ni , 0.001~0.2wt% of Ga, 0.003~0.2wt% of Ge, 0.01~3.0wt% of RE, greater than zero and less than or equal to 0.2wt% of Si, greater than zero and less than or equal to 0.8wt% of B and the balance aluminum;

[0054] b) performing homogenization treatment on the aluminum alloy ingot, and rolling the homogenized aluminum alloy ingot to obtain an aluminum alloy rod;

[0055] c) subjecting the aluminum alloy rod obtained in step b) to batch annealing treatment;

[0056] d)...

Embodiment 1

[0066] (1) Put the aluminum ingot into the furnace, heat it to melt and keep it warm at 720°C. The melting process is completed in a sealed environment; first add Al-Fe, Al-Cu, Al-Mg, Al-Co, Al-Be , Al-Ca, Al-Zn, Zn-Sr, Al-Zr, Al-Si, Al-B, Al-Li, Al-Na, Al-K, Al-Ti, Al-V, Al-Cr, Al - Mn, Al-Ni, Al-Ga and Al-Ge master alloys, after stirring evenly, add rare earth RE and stir for 20 minutes until fully stirred evenly, and keep it for 30 minutes; then refine the above alloy melt in the furnace; Add refining agent to the body, stir evenly, and then let it stand for 30 minutes. The melt refining is operated in a sealed environment; After the slag is processed, it enters the casting machine for casting to obtain an aluminum alloy ingot, and the composition of the ingot is listed in Table 1;

[0067] (2) Heat up the aluminum alloy ingot obtained in step (1) at a rate of 5°C / min to 450°C, hold it for 6 hours, and then roll it into a rod;

[0068] (3) Anneal the rod material obtained...

Embodiment 2

[0072] (1) Put the aluminum ingot into the furnace, heat it to melt and keep it warm at 740°C. The melting process is completed in a sealed environment; first add Al-Fe, Al-Cu, Al-Mg, Al-Co, Al-Be , Al-Ca, Al-Zn, Zn-Sr, Al-Zr, Al-Si, Al-B, Al-Li, Al-Na, Al-K, Al-Ti, Al-V, Al-Cr, Al - Mn, Al-Ni, Al-Ga and Al-Ge master alloys, after stirring evenly, add rare earth RE and stir for 20 minutes until fully stirred evenly, and keep it for 30 minutes; then refine the above alloy melt in the furnace; Refining agent is added to the body, stirred evenly, and then left to stand for 30 minutes. The melt refining is operated in a sealed environment; After the slag is processed, it enters the casting machine for casting to obtain an aluminum alloy ingot, and the composition of the ingot is listed in Table 1;

[0073] (2) Heat up the aluminum alloy ingot obtained in step (1) at a rate of 3°C / min to 550°C, hold it for 16 hours and then roll it into a rod;

[0074] (3) Anneal the rod material...

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Abstract

The invention provides Al-Fe-Ge-RE aluminium alloy and a preparation method thereof. The preparation method comprises the following steps of: (a) casting an aluminium alloy ingot; (b) carrying out homogenization treatment on the aluminium alloy ingot, and rolling the aluminium alloy ingot subjected to homogenization treatment, thus obtaining an aluminium alloy rod product; (c) carrying out intermittent annealing treatment on the aluminium alloy rod product obtained in the step (b); and (d) carrying out aging treatment on the aluminium alloy rod product obtained in the step (c) to obtain the aluminium alloy. The invention also provides a power cable. The aluminium alloy has better combination property by selecting and controlling adding elements and adopting a reasonable preparation technology.

Description

technical field [0001] The invention relates to the field of alloy technology, in particular to an Al-Fe-Ge-RE 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 is widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. 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 in-depth. The wide application of aluminum alloys has promoted the development of aluminum alloys in the power industry, and at the same time the development of the power industry has expanded the application fields of aluminum alloys. [0003] A power cable is a resource used to transmit and distribute electrical energy, and its basic structure consists of four parts: a core, an insulating layer, a shield...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22F1/04H01B1/02H01B9/00
Inventor 林泽民
Owner ANHUI JOY SENSE CABLE
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