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Al-Fe-Mg-Cr aluminum alloy for coal mine cable and aluminum alloy cable

An al-fe-mg-cr, aluminum alloy technology, applied in the direction of metal/alloy conductors, cable/conductor manufacturing, circuits, etc., can solve the problem of poor mechanical properties and corrosion resistance, electrical conductivity and mechanical strength performance can not meet the needs of coal mines Use cables and other problems to achieve the effects of increasing yield strength and elongation, improving mechanical strength and tensile properties, and refining recrystallized grains

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-Cr aluminum alloy for coal mine cable and aluminum alloy cable

Examples

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preparation example Construction

[0036] In the present invention, the preparation method of the aluminum alloy conductor wire core used in the aluminum alloy cable for coal mine comprises the following steps:

[0037] a. Obtain casting materials by casting molten aluminum alloys: add the aluminum alloy components mentioned in the present invention in proportion, carry out the smelting process at 700-800°C, and then cast at 650-680°C to obtain cast ingot;

[0038] b. Solid solution treating the ingot obtained in step a for 2-6 hours in the range of 460-550°C, and then rapidly quenching in cooling water at 20-100°C;

[0039] c. aging the ingot obtained in step b for 6-10 hours in the range of 150-250°C, then raising the temperature to 300-400°C, and rolling it into an alloy rod;

[0040] d. In the range of 280-300 ° C, the alloy rod rolled in step c is subjected to drawing treatment, so that the cross-sectional area is reduced to 50-60% of the cross-sectional area of ​​the alloy rod in step c, and an aluminum ...

Embodiment 1

[0046] A kind of Al-Fe-Mg-Cr series aluminum alloy for coal mine cable, components and the weight percent of each component are as follows (total weight: 1T):

[0047] components

Fe

Mg

Cr

Si

B

RE

Al and impurities

Weight (Kg)

3

0.5

1

/

/

/

995.5

weight percentage (%)

0.3

0.05

0.1

/

/

/

99.55

[0048] The method for preparing an aluminum alloy wire core by using the above-mentioned aluminum alloy material, the specific steps are as follows:

[0049] a. Obtain casting materials by casting molten aluminum alloys: add the aluminum alloy components mentioned in the present invention in proportion, carry out the melting process at 740°C, and then cast at 660°C to obtain ingots;

[0050] b. Solid solution treating the ingot obtained in step a for 5 hours at 460°C, and then rapidly quenching in cooling water at 50°C;

[0051] c. aging the ingot obtained in step b for 8 ho...

Embodiment 2

[0061] An aluminum alloy for coal mine cables, the components and the weight percentages of each component are as follows (total weight: 1T):

[0062] components

Fe

Mg

Cr

Si

B

RE

Al and impurities

Weight (Kg)

2

4

2

/

0.02

/

991.98

weight percentage (%)

0.2

0.4

0.2

/

0.002

/

99.198

[0063] The method for preparing an aluminum alloy wire core by using the above-mentioned aluminum alloy material, the specific steps are as follows:

[0064] a. Obtain casting materials by casting molten aluminum alloys: add the aluminum alloy components mentioned in the present invention in proportion, carry out the melting process at 700°C, and then cast at 650°C to obtain ingots;

[0065] b. Solid solution treating the ingot obtained in step a for 2 hours at 500°C, and then rapidly quenching in cooling water at 20°C;

[0066] c. aging the ingot obtained in step b for 6 hours at 250°...

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Abstract

The invention discloses Al-Fe-Mg-Cr aluminum alloy for a coal mine cable and an aluminum alloy cable. Aluminum alloy materials comprise, by weight, 0.2% to 1.1% of Fe, 0.01% to 0.4% of Mg, 0.001% to 0.2% of Cr, 0% to 0.1% of Si, 0% to 0.2% of B, and the balance of Al and impurities. The aluminum alloy materials are processed through the smelting technology, the casting technology and the rolling technology so that an aluminum alloy rod can be obtained, then, the aluminum alloy rod is drawn, bunched into strands and softened so that an aluminum alloy cable core can be obtained, and next, the conductor cable core is subjected to extruded insulation, cabling and extruded jacketing or armoring so that the aluminum alloy cable can be made. The Al-Fe-Mg-Cr aluminum alloy for the coal mine cable has the advantages of being high in strength and electric conductivity, good in bending property and the like. The aluminum alloy cable made from the aluminum alloy can meet the requirements for the performance of the cable in the coal mine field.

Description

technical field [0001] The invention relates to the technical field of coal mine cables, in particular to an Al-Fe-Mg-Cr 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): H01B1/02H01B13/00
Inventor 林泽民
Owner ANHUI JOY SENSE CABLE
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