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Al-Fe-Cu-Mg aluminum alloy for cables for coal mines, aluminum alloy cable and preparation method of alloy cable

An al-fe-cu-mg, aluminum alloy technology, used in cable/conductor manufacturing, metal/alloy conductors, circuits, etc., can solve the problem of poor mechanical properties and corrosion resistance, electrical conductivity and mechanical strength properties that cannot meet coal mines. Using cables and other issues to achieve the effect of improving yield strength and elongation, improving age hardening characteristics, and improving production efficiency

Pending Publication Date: 2015-01-21
ANHUI JOY SENSE CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, aluminum core cables have been developed. However, ordinary aluminum core cables have defects such as poor mechanical properties and corrosion resistance, and do not have good bending properties to meet the frequent movement of coal mine cables; and according to the harsh conditions of coal mine cables The environment has high requirements on the conductivity and mechanical strength of the cable conductor, but the conductivity and mechanical strength of the existing ordinary aluminum core cables cannot meet the requirements of coal mine cables

Method used

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  • Al-Fe-Cu-Mg aluminum alloy for cables for coal mines, aluminum alloy cable and preparation method of alloy cable
  • Al-Fe-Cu-Mg aluminum alloy for cables for coal mines, aluminum alloy cable and preparation method of alloy cable
  • Al-Fe-Cu-Mg aluminum alloy for cables for coal mines, aluminum alloy cable and preparation method of alloy cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] An aluminum alloy for coal mine cables, the components and the weight percentages of each component are as follows (total weight: 1T):

[0042]

[0043] Wherein, the rare earth element RE includes Ce, La and Pr, wherein the content of Ce and La accounts for 50% of the total content of the rare earth element, and the weight ratio of Zr and Mn is 1:1.

[0044] The method for making Al-Fe-Cu-Mg aluminum alloy cables for coal mine cables by using the above-mentioned aluminum alloys, the processing technology includes the following steps:

[0045] a. Obtain casting material by casting the above-mentioned aluminum alloy: add the aluminum alloy components mentioned in the present invention in proportion, carry out the smelting process at a temperature of 700°C, and then cast at a temperature of 650°C to obtain an ingot ;

[0046] b. The ingot obtained in step a is solution treated at 500° C. for 4 hours, and then rapidly quenched in cooling water at 30° C.;

[0047] c. ag...

Embodiment 2

[0057]

[0058] Wherein, the rare earth element RE includes Ce, La and Er, wherein the content of Ce and La accounts for 60% of the total content of the rare earth element, and the weight ratio of Zr and Cr is 1:1.

[0059] The method for making Al-Fe-Cu-Mg aluminum alloy cables for coal mine cables by using the above-mentioned aluminum alloys, the processing technology includes the following steps:

[0060] a. The casting material is obtained by casting the above-mentioned aluminum alloy: add the aluminum alloy components mentioned in the present invention in proportion, carry out the melting process at a temperature of 800°C, and then cast at a temperature of 680°C to obtain an ingot ;

[0061] b. Solid solution treating the ingot obtained in step a for 6 hours at 460°C, and then rapidly quenching in cooling water at 20°C;

[0062] c. aging the ingot obtained in step b for 6 hours at 250°C, and then raising the temperature to 400°C and rolling it into an alloy rod;

[0...

Embodiment 3

[0071]

[0072] Among them, the rare earth element RE is Ce, La, and the weight ratio of Zr and Ag is 1:1.

[0073] The method for making Al-Fe-Cu-Mg aluminum alloy cables for coal mine cables by using the above-mentioned aluminum alloys, the processing technology includes the following steps:

[0074] a. The casting material is obtained by casting the above-mentioned aluminum alloy: add the aluminum alloy components mentioned in the present invention in proportion, carry out the melting process at a temperature of 750°C, and then cast at a temperature of 650°C to obtain an ingot ;

[0075] b. Solid solution treating the ingot obtained in step a for 2 hours at 550°C, and then rapidly quenching in cooling water at 100°C;

[0076] c. aging the cast ingot obtained in step b for 10 hours at 200°C, and then raising the temperature to 300°C and rolling it into an alloy rod;

[0077] d. Under the temperature condition of 300°C, the alloy rod rolled in step c is subjected to draw...

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Abstract

The invention discloses an Al-Fe-Cu-Mg aluminum alloy for cables for coal mines, which comprises 0.2-1.1% of Fe, 0.01-0.4% of Cu, 0.01-0.4% of Mg, 0-0.1% of Si, 0-0.2% of B, and the balance of Al and impurities, wherein the electrical resistivity of the aluminum alloy is not greater than 0.028264 Omega.mm<2> / m, the elongation at break is not less than 10%, and the number of times of 90-degree fatigue bending is greater than or equal to 30. An aluminum alloy cable is prepared by the steps of melting, casting and rolling the aluminum alloy material so as to obtain an aluminum alloy rod, carrying out drawing, bunch-stranding and softening on the aluminum alloy rod so as to obtain an aluminum alloy cable core, and carrying out extruded insulation, cabling, extruded sheathing or armoring on the cable core; and the prepared aluminum alloy cable has the characteristics of high strength, high electric conductivity, good bending performance and the like, and can satisfy the requirements on the properties of cables in the field of coal mines.

Description

technical field [0001] The invention relates to the technical field of coal mine cables, in particular to an Al-Fe-Cu-Mg series aluminum alloy and an aluminum alloy cable for coal mine cables. Background technique [0002] Due to the complex environment, harsh working conditions, frequent movement, and short service life of cables used in coal mines, the area where gas accumulates is very dangerous. Abrasion resistance and resistance to external tensile properties are very high. Therefore, cables for coal mines are products with high technical content in the cable industry. [0003] Ordinary cables use copper core conductors. With the over-exploitation of copper resources, copper resources are becoming increasingly tense and on the verge of scarcity. Therefore, it is necessary to use other materials to replace copper core conductors to meet market demand. Among metal materials, aluminum has the characteristics of good electrical conductivity, light weight, and low price. I...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C21/06C22C21/08C22C21/16H01B1/02H01B13/00
Inventor 林泽民
Owner ANHUI JOY SENSE CABLE
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