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Ultra-fine aluminum alloy wire and preparation method thereof

An aluminum alloy wire, ultra-fine technology, applied in the direction of metal/alloy conductors, rods/rods/wires/strip conductors, etc., can solve problems such as difficulty in realization

Active Publication Date: 2011-04-20
安徽中青欣意铝合金电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, especially the creep characteristics and linkability, it is particularly important to replace annealed copper wire with aluminum alloy, and pure aluminum is obviously unsatisfactory.
[0003] For the aluminum alloy wires used in communication cables and transformers, it is not only necessary to ensure that the aluminum alloy wires have good tensile properties and can be drawn into 0.5mm or even thinner monofilaments, but also to ensure that the aluminum alloy wires have good tensile properties. Excellent heat resistance, which is difficult to achieve with ordinary aluminum alloys

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0034] The preparation method of the aluminum alloy wire is as follows:

[0035] 1) According to the alloy composition and weight percentage: Fe 0.4-1.0wt%, Mg 0.05-0.5wt%, Cu 0.05-0.4wt%, Sb0.05-0.5wt%, mixed rare earth 0.1-1.2wt%, Among them, Fe, Mg, Cu, and Sb are respectively selected in the form of aluminum-iron master alloy, aluminum-magnesium master alloy, aluminum-copper master alloy, and aluminum-antimony master alloy, and the rare earth is selected in the form of aluminum rare earth master alloy, and aluminum is used as a raw material, and the purity is greater than 99.70wt%. of aluminum ingots.

[0036] 2) Put the prepared high-purity aluminum ingot into the shaft furnace, raise the temperature to 710-750°C, add the aluminum-iron master alloy when the temperature rises to 730-760°C, continue to rise to 760-800°C, add the aluminum-copper master alloy and aluminum-magnesium master alloy, using an electric stirring device to stir evenly, after they are completely melt...

Embodiment 1

[0046] 1) Alloy composition and weight percentage: Fe 0.4-1.0wt%, such as 0.5wt%, 0.6wt%, 0.7wt%, 0.8wt%, 0.9wt%; Mg 0.05-0.5wt%, such as 0.1wt%, 0.2wt%, 0.3wt%, 0.4wt%; Cu 0.05-0.4wt%, such as 0.1wt%, 0.2wt%, 0.3wt%; Sb 0.05-0.5wt%, such as 0.1wt%, 0.2wt%, 0.3wt% %, 0.4wt%; mixed rare earth 0.1-1.2wt%, such as 0.2wt%, 0.4wt%, 0.6wt%, 0.8wt%, 1.0wt%, for batching, wherein Fe, Mg, Cu, Sb respectively choose aluminum iron The form of master alloy, aluminum-magnesium master alloy, aluminum-copper master alloy, and aluminum-antimony master alloy is selected as the rare earth. The aluminum rare earth master alloy is selected as the raw material, and the aluminum ingot with a purity greater than 99.70wt% is selected.

[0047] 2) Put the prepared high-purity aluminum ingot into the shaft furnace, raise the temperature to 710-750°C, add the aluminum-iron master alloy when the temperature rises to 730-760°C, continue to rise to 760-800°C, add the aluminum-copper master alloy and alumi...

Embodiment 2

[0057] 1) According to the alloy composition and weight percentage: Fe 0.45wt%, Mg 0.1wt%, Cu 0.08wt%, Sb 0.11wt%, Ce 0.1wt%, La 0.21wt%, wherein Fe, Mg, Cu, Sb is selected in the form of aluminum-iron master alloy, aluminum-magnesium master alloy, aluminum-copper master alloy, and aluminum-antimony master alloy, and the rare earth is in the form of aluminum-cerium master alloy and aluminum-lanthanum master alloy. Aluminum ingots.

[0058] 2) Put the prepared high-purity aluminum ingot into the shaft furnace, raise the temperature to 710-750°C, add the aluminum-iron master alloy when the temperature rises to 730-760°C, continue to rise to 760-800°C, add the aluminum-copper master alloy and aluminum-magnesium master alloy, using an electric stirring device to stir evenly, after they are completely melted, keep warm at 760-800°C for 20 minutes, then add aluminum-antimony master alloy, and stir for 5 minutes. Finally, add the aluminum rare earth intermediate alloy, stir for 10 m...

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Abstract

The invention discloses a preparation method for an ultra-fine aluminum alloy wire. The aluminum alloy wire comprises the following elements such as Al, Fe, Mg, Cu and Sb, and also comprises 0.1 to 1.2 weight percent of misch metal. The aluminum alloy material has high strength and high stretchability and can be drawn into a 0.1 mm or finer aluminum alloy wires by smelting, line-casting, rolling and drawing; and the aluminum alloy wire can be used for an insulated flexible line, an electrical cable, an electromagnetic line, an electrical equipment line, a vehicle wire, a communication cable line and the like.

Description

technical field [0001] The invention belongs to the field of wire and cable manufacturing, and in particular relates to an ultra-fine aluminum alloy wire and a preparation method thereof. Background technique [0002] The conductive core of the insulated wire and cable is made of aluminum and copper, and the hard aluminum wire is generally used for the large size, and the semi-softened aluminum wire is used for the small size. However, with the expansion of the range of aluminum section copper, semi-soft aluminum wire is not enough to cope. According to different occasions such as wiring, power cables, communication cables, electromagnetic wires and wiring, not only thin wires and ultra-thin wires are required, but also in terms of performance, such as flexibility, strength, elongation, high temperature creep performance and link performance. Other aspects also put forward higher requirements. Among them, especially the creep characteristics and linkability, it is particul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/03C22F1/04H01B1/02H01B5/02
Inventor 林泽民
Owner 安徽中青欣意铝合金电缆有限公司
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