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
CN104294093APending Publication Date: 2015-01-21ANHUI JOY SENSE CABLE
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ANHUI JOY SENSE CABLE
Publication Date
2015-01-21

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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.
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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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