Ultra-fine aluminum magnesium alloy filament material and preparation method thereof

An aluminum-magnesium alloy, ultra-fine technology, applied in the direction of metal/alloy conductors, conductive materials, conductive materials, etc., can solve the problems of insufficient excavation of products, electrical conductivity needs to be improved, and increased material brittleness, etc., to achieve significant production effects and reduce Discontinuity rate and fineness, effects of improving strength and conductivity

Inactive Publication Date: 2016-04-13
BAISE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the aluminum ingots produced by electrolysis of bauxite with high iron content, the brittleness of the material will increase after melting and the performance of the product cannot be fully exploited. At the same time, the strength and conductivity of the prepared aluminum-magnesium alloy wires need to be improved, and the broken wire rate needs to be reduced, so they cannot be drawn. To the specifications below Ф0.10mm

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The weight percent of the raw material components of the aluminum-magnesium alloy is: Mg3.8%, Mn0.2%, Zr0.1%, Cr0.2%, the balance is Al, and the total content of other impurities does not exceed 0.3%.

[0021] First mix the raw materials evenly according to the ratio, then put them into the gas-fired reverberatory furnace, and melt them into alloy liquid at 710-730°C; carry out flat drawing casting of the alloy liquid, cast them into rods of Φ8.5mm, and then draw them for the first time (Cold drawing, drawing speed: 180m / min), the rod is cold drawn to an aluminum-magnesium alloy wire with a diameter of Φ5.0mm, annealed at 430°C, and kept for 2.5 hours; then drawn for the second time (cold drawn , drawing speed: 450m / min) to Ф1.16mm; second annealing, heat preservation at 430°C for 5 hours, and then third drawing by high-speed micro-drawing machine (cold drawing, drawing speed: 1600m / min) to the finished product Φ0.09mm aluminum-magnesium alloy wire.

[0022] The ultra...

Embodiment 2

[0025] The weight percent of the raw materials of the aluminum-magnesium alloy is: 2.8% Mg, 0.2% Mn, 0.2% Zr, 0.1% Cr, the rest is Al, and the total content of other impurities does not exceed 0.3%.

[0026] First mix the raw materials evenly according to the ratio, then put them into the gas-fired reverberatory furnace, and melt them into alloy liquid at 710-730°C; carry out flat drawing casting of the alloy liquid, cast them into rods of Φ8.5mm, and then draw them for the first time (Cold drawing, drawing speed: 190m / min), the rod is cold drawn to an aluminum-magnesium alloy wire with a diameter of Φ5.0mm, annealed at 435°C, and kept for 2 hours; then drawn for the second time (cold drawn , drawing speed: 460m / min) to Ф1.16mm; second annealing, heat preservation at 425°C for 6 hours, and then third drawing by high-speed micro-drawing machine (cold drawing, drawing speed: 1500m / min) to the finished product Φ0.09mm aluminum-magnesium alloy wire.

[0027] The ultra-fine alumi...

Embodiment 3

[0030] The weight percent of the aluminum-magnesium alloy raw material is: 3.3% Mg, 0.2% Mn, 0.15% Zr, 0.15% Cr, the balance is Al, and the total content of other impurities does not exceed 0.3%.

[0031]First mix the raw materials evenly according to the ratio, then put them into the gas-fired reverberatory furnace, and melt them into alloy liquid at 710-730°C; carry out flat drawing casting of the alloy liquid, cast them into rods of Φ8.5mm, and then draw them for the first time (Cold drawing, drawing speed: 200m / min), the rod is cold drawn to an aluminum-magnesium alloy wire with a diameter of Φ5.0mm, annealed at 435°C, and kept for 2 hours; then drawn for the second time (cold drawn , drawing speed: 480m / min) to Ф1.16mm; second annealing, heat preservation at 425°C for 6 hours, and then third drawing by high-speed micro-drawing machine (cold drawing, drawing speed: 1400m / min) to the finished product Φ0.09mm aluminum-magnesium alloy wire.

[0032] The ultra-fine aluminum-...

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Abstract

The invention discloses an ultra-fine aluminum magnesium alloy filament material and a preparation method thereof. The ultra-fine aluminum magnesium alloy filament material comprises the following components of raw materials in percentages by weight: 2.8-3.8% of Mg, 0.2% of Mn, 0.1-0.2% of Zr, 0.1-0.2% of Cr, other impurities with the total content of smaller than 0.3% and the balance of Al. The preparation method comprises the following steps: smelting the raw materials of the aluminum magnesium alloy filament, carrying out flat leading rod casting to form a rod piece with the diameter of 8.5 mm, carrying out primary drawing to form an aluminum magnesium alloy filament material with the diameter of 5.0 mm, carrying out annealing, and preserving the temperature for 2-2.5 h; then carrying out secondary drawing to form a rod piece with the diameter of 1.16 mm, then carrying out secondary annealing, and preserving the temperature for 5-6 h; and then carrying out third drawing through a high-speed superfine wire drawing machine to form a finished product, aluminum magnesium alloy filament material with the diameter of 0.09 mm. Through the adoption of the preparation method disclosed by the invention, the strength and conductivity of the aluminum magnesium alloy filament are improved, the thread breaking rate and fineness of the filament material are also reduced, the performance of 5154-series aluminum magnesium alloy filament material is improved, and the quality of the product is improved.

Description

technical field [0001] The invention relates to the technical field of production of aluminum-magnesium alloy wires, in particular to ultra-fine aluminum-magnesium alloy wires and a preparation method thereof. Background technique [0002] Aluminum-magnesium alloy wire has a broad prospect of replacing traditional pure copper round wire products as core wires, and is now widely used in cable television coaxial cables, high-frequency signal transmission, power transmission, audio and video conductor materials, power supply computer cable conductor materials, LAN cables, communication cables, braided shielded network cables, and military industry and aerospace fields are the main supporting products for broadband transmission network and communication network cables. Compared with the traditional pure copper round wire, the aluminum-magnesium alloy wire has the advantages of light weight, high strength, good toughness, strong shielding and low cost, and the aluminum-magnesium ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/02H01B13/00B21C37/04
CPCH01B1/023B21C37/045B21C37/047H01B13/00
Inventor 黄显吞吴顺意
Owner BAISE UNIV
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