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Al-Fe-Mg-Zr aluminum alloy used for coal mine cables, aluminum alloy cable and manufacturing method

An aluminum alloy and cable technology, which is applied in the manufacture of cables/conductors, metal/alloy conductors, circuits, etc., can solve the problems of poor mechanical properties and corrosion resistance, electrical conductivity and mechanical strength that cannot meet the needs of coal mine cables, etc., to achieve Improve yield strength and elongation, improve mechanical strength and tensile properties, and improve 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-Mg-Zr aluminum alloy used for coal mine cables, aluminum alloy cable and manufacturing method
  • Al-Fe-Mg-Zr aluminum alloy used for coal mine cables, aluminum alloy cable and manufacturing method
  • Al-Fe-Mg-Zr aluminum alloy used for coal mine cables, aluminum alloy cable and manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] An aluminum alloy for coal mine cables, the components and the weight percentages of each component are as follows (total weight: 1T):

[0041]

[0042] Wherein, the rare earth element RE is Ce, La, Ca, Ni, Ti and Zn, and its weight percentage content is 1:1:1:1. .

[0043] The method for making Al-Fe-Mg-Zr aluminum alloy cables for coal mine cables by using the above-mentioned aluminum alloys, the processing technology includes the following steps:

[0044] 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 ;

[0045] 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.;

[0046] c. aging the ingot obtained in step b at 150° C. for 7 hours, then raising the temperature...

Embodiment 2

[0056]

[0057] 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 content of Ca and Ni is 1:1 by weight.

[0058] The method for making Al-Fe-Mg-Zr aluminum alloy cables for coal mine cables by using the above-mentioned aluminum alloys, the processing technology includes the following steps:

[0059] 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 ;

[0060] 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;

[0061] 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;...

Embodiment 3

[0070]

[0071] Wherein, the rare earth element RE is Ce, La, Ca, and Ti, and its weight percentage content is 1:1.

[0072] The method for making Al-Fe-Mg-Zr aluminum alloy cables for coal mine cables by using the above-mentioned aluminum alloys, the processing technology includes the following steps:

[0073] 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 ;

[0074] 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;

[0075] 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;

[0076] d. Under the temperature condition of 300°C, the alloy rod rolled in step c is subjecte...

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Abstract

The invention discloses Al-Fe-Mg-Zr aluminum alloy used for coal mine cables. The Al-Fe-Mg-Zr aluminum alloy comprises 0.2 percent-1.1 percent of Fe, 0.01 percent-0.4 percent of Mg, 0.001 percent-0.2 percent of Zr, 0 percent-0.1 percent of Si, 0 percent-0.2 percent of B and the balance being Al and impurities, wherein the resistivity of the aluminum alloy is not larger than 0.028164 omega*mm<2> / m, the elongation at break is not lower than 10 percent, and ninety-degree fatigue bending frequency is larger than or equal to thirty. The aluminum alloy material is smelted, cast and rolled, so that an aluminum alloy rod is obtained; afterwards, the aluminum alloy rod is subjected to pulling, bunch stranding and softening, so that an aluminum alloy cable core is formed; next, the cable core is subjected to extruded insulation, cabling, sheath extrusion or armoring, so that an aluminum alloy cable is manufactured. The manufactured aluminum alloy cable has the advantages of being high in strength, high in electric conductivity, good in bending performance and the like, and therefore the requirements for cable performance in the field of coal mines can be satisfied.

Description

technical field [0001] The invention relates to the technical field of coal mine cables, in particular to an Al-Fe-Mg-Zr 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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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/02H01B13/02H01B5/08C22C21/00
Inventor 林泽民
Owner ANHUI JOY SENSE CABLE
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