Al-Fe-Cu-Zr series aluminum alloy for cables for coal mines and aluminum alloy cable

An al-fe-cu-zr, aluminum alloy technology, applied in the field of Al-Fe-Cu-Zr aluminum alloy and aluminum alloy cables for coal mine cables, can solve the problem of high electrical conductivity and mechanical strength of cable conductors, common aluminum cores The mechanical properties and corrosion resistance of the cables are poor, and they cannot meet the bending properties of the cables used in coal mines, so as to improve the mechanical strength and tensile properties, improve the high temperature creep performance and fatigue resistance, and improve the high temperature creep resistance.

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

[0004] However, ordinary aluminum core cables have problems of poor mechanical properties and corrosion resistance, and cannot meet the requirements of good bending performance for frequent movement of cable

Method used

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  • Al-Fe-Cu-Zr series aluminum alloy for cables for coal mines and aluminum alloy cable
  • Al-Fe-Cu-Zr series aluminum alloy for cables for coal mines and aluminum alloy cable
  • Al-Fe-Cu-Zr series aluminum alloy for cables for coal mines and aluminum alloy cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] An Al-Fe-Cu-Zr series aluminum alloy for coal mine cables, the components and the weight percentages of each component are as follows (total weight: 1T):

[0051]

[0052] A certain amount of Ca is added to the above aluminum alloy material to form CaAl with Al 4 Compounds, Ca can strengthen the high-temperature performance of aluminum alloys, and cooperate with metal elements such as Fe to improve the creep resistance of aluminum alloys. At the same time, trace amounts of Ca are beneficial to the removal of hydrogen in aluminum liquid.

[0053] The method for preparing an aluminum alloy wire core by using the above-mentioned aluminum alloy material, the specific steps are as follows:

[0054] a. Casting molten aluminum alloys to obtain casting materials: adding the above-mentioned aluminum alloy components according to the above ratios, performing a melting process at 700°C, and then casting at 650°C to obtain ingots;

[0055] b. Solid solution treating the ingot o...

Embodiment 2

[0065] An aluminum alloy for coal mine cables, the components and the weight percentages of each component are as follows (total weight: 1T):

[0066]

[0067] A certain amount of Si and Ca are added to the above-mentioned aluminum alloy material, and the existence of a small amount of Si makes the aluminum-silicon alloy have excellent casting performance and corrosion resistance. Ca and Si form CaSi, which is insoluble in aluminum, reduces the solid solution amount of Si, and can slightly improve the conductivity of industrial pure aluminum.

[0068] The method for preparing an aluminum alloy wire core by using the above-mentioned aluminum alloy material, the specific steps are as follows:

[0069] a. Casting molten aluminum alloys to obtain casting materials: adding the above-mentioned aluminum alloy components according to the above ratios, performing a melting process at 780°C, and then casting at 660°C to obtain ingots;

[0070] b. Solid solution treating the ingot ob...

Embodiment 3

[0078] An aluminum alloy for coal mine cables, the components and the weight percentages of each component are as follows (total weight: 1T):

[0079]

[0080] In the above-mentioned aluminum alloy materials, it is preferable to add a certain amount of B and rare earth elements. B, as an aluminum alloy component, can improve the properties of the alloy, especially the electrical properties and elongation properties, and ensure the performance of the alloy through a reasonable ratio of each component. .

[0081] Rare earth elements can not only significantly improve the electrical properties of the alloy, but also have the effect of improving the fatigue resistance and bending performance of the alloy, prolonging the service life of the cable. 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.

[0082] The method for preparing an aluminum alloy wire core by using the ab...

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Abstract

The invention discloses an Al-Fe-Cu-Zr series aluminum alloy for cables for coal mines and an aluminum alloy cable. The aluminum alloy contains the ingredients in percentage by weight: 0.2-1.1% of Fe, 0.01-0.4% of Cu, 0.001-0.2% of Zr, 0-0.1% of Si, 0-0.2% of B, 0.001-0.15% of one element selected from Ca, Ni, Ti and Zn and the balance of Al and impurities. The aluminum alloy cable is produced through enabling the aluminum alloy to be subjected to the processes of melting, casting and rolling, so as to obtain aluminum alloy rods, then, carrying out drawing, stranding and softening, so as to form aluminum alloy wire cores, and then, carrying out extruded insulation, cabling and extruded sheathing or armoring on the conductor wire cores. The Al-Fe-Cu-Zr series aluminum alloy for the cables for the coal mines, disclosed by the invention, has the characteristics of high strength, high conductivity, good bending property and the like; the aluminum alloy cable produced from the aluminum alloy can meet the requirements on the properties of the cable in the field of the coal mines.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloys, and in particular relates to an Al-Fe-Cu-Zr series aluminum alloy and an aluminum alloy cable for coal mine cables. Background technique [0002] Coal mine cables are high-tech products in the cable industry. 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. [0003] Most of the cables on the market now use copper cores as conductors. However, as copper resources become increasingly tight and scarce, the demand for wires using other materials instead of copper core wires is increasing. Among metal materials, aluminum has good electrical conductivity, light weight, and low price. At the same time, people's awareness of environmental protection has strengthened in recent years, an...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C21/12C22C21/14C22C21/18H01B1/02H01B13/00
Inventor 林泽民
Owner ANHUI JOY SENSE CABLE
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