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Al-Fe-Cu-Mg aluminum alloy and medium-voltage cable prepared from Al-Fe-Cu-Mg aluminum alloy

An al-fe-cu-mg, aluminum alloy technology, used in power cables with shielding/conducting layers, metal/alloy conductors, cable/conductor manufacturing, etc., can solve the problem of fatigue resistance and creep resistance. issues such as improvement

Inactive Publication Date: 2014-04-16
ANHUI JOY SENSE CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Another example is the alloy listed in Japanese Patent Document 6, which has been improved in terms of strength and ductility, and has better proof stress and impact resistance, but fatigue resistance and creep resistance have not been improved.

Method used

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  • Al-Fe-Cu-Mg aluminum alloy and medium-voltage cable prepared from Al-Fe-Cu-Mg aluminum alloy
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  • Al-Fe-Cu-Mg aluminum alloy and medium-voltage cable prepared from Al-Fe-Cu-Mg aluminum alloy

Examples

Experimental program
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Effect test

Embodiment 1

[0060] An Al-Fe-Cu-Mg aluminum alloy, wherein the components and component contents are shown in the following table

[0061]

[0062] The specific method for preparing the aluminum alloy conductor material by using the above aluminum alloy formula is as follows:

[0063] a) Melting is carried out by adding various components according to the above proportions in a constant temperature cupola at 800°C;

[0064] b) The molten metal after smelting is added to the 750°C holding furnace in proportion to the refining agent, and the high-temperature-resistant alloy steel double-blade stirrer is used to stir at a rate of 20 rpm for 10 minutes. After the stirring, the temperature is raised to 820°C and kept for 30 minutes. minute;

[0065] c) The alloy liquid is cooled to below 650°C through a constant temperature diversion tank (set temperature 645°C) and then enters the casting room for casting;

[0066] d) cooling the cast bar obtained in step c) to 400° C. for 4 hours after b...

Embodiment 2

[0078] An Al-Fe-Cu-Mg aluminum alloy, wherein the components and component contents are shown in the following table

[0079]

[0080] The specific method for preparing the aluminum alloy conductor material by using the above aluminum alloy formula is as follows:

[0081] a) Melting is carried out by adding various components in the above ratio in a constant temperature cupola at 780°C;

[0082] b) The molten metal after smelting is added to the 750°C holding furnace in proportion to the refining agent, and the high-temperature-resistant alloy steel double-blade stirrer is used to stir at a rate of 20 rpm for 10 minutes. After the stirring, the temperature is raised to 820°C and kept for 30 minutes. minute;

[0083] c) The alloy liquid is cooled to below 650°C through a constant temperature diversion tank (set temperature 645°C) and then enters the casting room for casting;

[0084] d) cooling the cast bar obtained in step c) to 400° C. for 4 hours after being kept at 480...

Embodiment 3

[0097] An Al-Fe-Cu-Mg aluminum alloy, wherein the components and component contents are shown in the following table

[0098]

[0099] The specific method for preparing the aluminum alloy conductor material by using the above aluminum alloy formula is as follows:

[0100] a) Melting is carried out by adding various components according to the above proportions in a constant temperature cupola at 850°C;

[0101] b) The molten metal after smelting is added to the 750°C holding furnace in proportion to the refining agent, and the high-temperature-resistant alloy steel double-blade stirrer is used to stir at a rate of 20 rpm for 10 minutes. After the stirring, the temperature is raised to 820°C and kept for 30 minutes. minute;

[0102] c) The alloy liquid is cooled to below 650°C through a constant temperature diversion tank (set temperature 645°C) and then enters the casting room for casting;

[0103] d) cooling the cast bar obtained in step c) to 400° C. for 4 hours after b...

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Abstract

The invention discloses Al-Fe-Cu-Mg aluminum alloy. The cold workability of the aluminum alloy can be significantly improved by adding B, so that an aluminum alloy rod disclosed by the invention does not generate a corrosion spot or crack in a cold-drawing process due to stress concentration, and the minimal diameter of a monofilament of the aluminum alloy after drawing can be up to 0.3mm. The content of Si is defined, the tensile property is reduced due to excessive Si, the processability of the cable is affected, the bending fatigue property of a conductor can be reduced, and the electric property also can be reduced by excessive Si. By adopting the Al-Fe-Cu-Mg aluminum alloy, an RE element is preferred, wherein Ce and Le account for over 50% of total content, so that the electric property of the alloy can be significantly improved by rare earth. The rare earth disclosed by the invention also can play a role of improving the bending fatigue resistance of the alloy, and the service life of the cable is prolonged. Ce and La are preferred due to the fact that the improvement effects of Ce and La elements in the Al-Fe-Cu-Mg aluminum alloy are more significant as compared with other rare earth elements.

Description

technical field [0001] The invention relates to the field of non-ferrous metals, in particular to an Al-Fe-Cu-Mg aluminum alloy and a medium-voltage cable manufactured therefrom. 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 shi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/06C22F1/04H01B1/02H01B9/02H01B13/02
Inventor 林泽民
Owner ANHUI JOY SENSE CABLE
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