Al-Fe-Ir-RE aluminum alloy, preparation method thereof and power cable

A technology for power cables and aluminum alloys, applied in the field of alloys, can solve the problems of poor comprehensive performance, hidden safety hazards, and poor fatigue resistance of aluminum alloy power cables.

Active Publication Date: 2013-04-17
ANHUI JOY SENSE CABLE
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  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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  • Al-Fe-Ir-RE aluminum alloy, preparation method thereof and power cable
  • Al-Fe-Ir-RE aluminum alloy, preparation method thereof and power cable
  • Al-Fe-Ir-RE aluminum alloy, preparation method thereof and power cable

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preparation example Construction

[0072] The present invention also provides a method for preparing an Al-Fe-Ir-RE aluminum alloy, comprising the following steps:

[0073] 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, 0.001~0.2wt% of Rb, 0.001~0.15wt% of Nb, 0.001~0.2wt% of Mo, 0.001~0.25wt% of Tc, 0.001 ~0.15wt% Ru, 0.002~0.1wt% Rh, 0.001~0.12wt% Pd, 0.001~0.1wt% Ag, 0.002~0.13wt% Cd, 0.003~0.18wt% In, 0.001~0.08 wt% Sn, 0.001~0.3wt% Sb, 0.001~0.2wt% Cs, 0.001~0.08wt% Ba, 0.001~0.22wt% Hf, 0.002~0.16wt% Ta, 0.001~0.08wt% W, 0.002~0.18wt% Re, 0.002~0.08wt% Os, 0.001~0.15wt% Ir, 0.01~3.0wt% RE, greater than zero and less than or equal to...

Embodiment 1

[0086] (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 Fe, Cu, Mg, Co, Be, Ca, Zn, Sr, Zr, Si , B, Li, Na, K, Ti, V, Cr, Mn, Ni, Ga, Ge, Rb, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, In, Sn, Sb, Cs, Ba , Hf, Ta, W, Re, Os and Ir, stir evenly, then 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 and stir evenly, and then keep it for 30 minutes. The melt refining is operated in a sealed environment; Enter the casting machine for casting to obtain an aluminum alloy ingot, and the ingot composition is listed in Table 1;

[0087] (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;

[0088] (3) Anneal the rod material obtained in step (2) under an inert atmosphere, heat it to 280°C and kee...

Embodiment 2

[0092] (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, Al-Ge, Al-Rb, Al-Nb, Al-Mo, Al-Tc, Al-Ru, Al-Rh, Al-Pd, Al-Ag, Al-Cd , Al-In, Al-Sn, Al-Sb, Al-Cs, Al-Ba, Al-Hf, Al-Ta, Al-W, Al-Re, Al-Os and Al-Ir master alloys, after stirring Then add rare earth RE and stir for 20 minutes until it is fully stirred evenly, and then keep it for 30 minutes; then refine the above-mentioned alloy melt in the furnace; Operate in a sealed environment; after refining, remove slag, let it stand, and adjust the temperature to 720°C, the alloy liquid is poured out of the furnace, and after 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;

[0093] ...

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Abstract

The invention provides Al-Fe-Ir-RE aluminum alloy, and also provides a preparation method of the Al-Fe-Ir-RE aluminum alloy. The preparation method comprises the following steps of: a) casting an aluminum alloy ingot; b) homogenizing the aluminum alloy ingot, and rolling the homogenized aluminum alloy ingot to obtain an aluminum alloy rod; c) intermittently annealing the aluminum alloy rod obtained in the step b); and d) performing aging treatment on the aluminum alloy rod obtained in step c) to obtain the aluminum alloy. The invention further provides a power cable. According to the invention, the aluminum alloy has a good comprehensive performance by choosing and controlling 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-Ir-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 shieldi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C21/02C22C21/08C22C21/10C22C21/18C22F1/04C22F1/043C22F1/047C22F1/05C22F1/053C22F1/057H01B1/02H01B9/02H01B13/00
Inventor 林泽民
Owner ANHUI JOY SENSE CABLE
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