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A kind of graphene-loaded grain refining material of al-mg alloy wire and preparation method thereof

A technology of grain refinement and graphene, applied in the field of graphene-loaded grain refinement materials and their preparation, can solve the problem that the electrical conductivity, strength and plasticity of aluminum-magnesium alloy wires need to be improved, product performance cannot be fully exploited, and product performance cannot be fully exploited. Excavate product and other problems to achieve the effect of complete and thorough fusion, good strength and plastic coordination, and reduced material loss

Active Publication Date: 2022-07-12
BAISE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This process is inefficient and cannot fully tap the performance of the product, especially the material ratio of these grain-refined alloy powders and the method of directly doping and immersing the grain-refined alloy powders in the aluminum solution. The chemical agent is fully fused and plays its due role, so that the electrical conductivity, strength and plasticity of the prepared aluminum-magnesium alloy wire need to be improved
Especially for aluminum ingots electrolyzed from bauxite with high iron content, the brittleness of the material will increase after melting and the performance of the product cannot be fully exploited. Manufactured to specifications below Ф0.10mm

Method used

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  • A kind of graphene-loaded grain refining material of al-mg alloy wire and preparation method thereof
  • A kind of graphene-loaded grain refining material of al-mg alloy wire and preparation method thereof
  • A kind of graphene-loaded grain refining material of al-mg alloy wire and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A graphene composite supported grain refinement material of Al-Mg alloy wire, the percentages by weight are Gp0.10%, V0.10%, Zr0.10%, Mn0.20%, Ti0.20%, Fe0.40 %, Si0.08%, Cr0.20%, Cu0.40%. Its preparation method comprises the following steps:

[0035] (1) Under argon protection, the weight percentages are Gp0.10%, V0.10%, Zr0.10%, Mg3.8%, Mn0.20%, Ti0.20%, Fe0.40%, Si0. 08%, Cr0.20%, Cu0.40%, etc. to uniformly mix the grain-refined powder, and then use a tablet machine at 2.0×10 6 The mixed powder is cold-pressed into flake samples under the pressure of Pa;

[0036] (2) Put the sheet-like sample into a resistance sintering furnace filled with argon gas protection. During the sintering process, an intermediate continuous two-stage heating annealing method is adopted, and a gradient heating heating annealing method is adopted, that is, the above grain refiner metal is used. The temperature of phase transformation and microstructure change is usually between 500-1500 °C...

Embodiment 2

[0040] A graphene composite supported grain refinement material of Al-Mg alloy wire, the percentages by weight are Gp0.20%, V0.20%, Zr0.20%, Mn0.20%, Ti0.20%, Fe0.40 %, Si0.08%, Cr0.20%, Cu0.40%. Its preparation method comprises the following steps:

[0041] (1) Under argon protection, the percentages by weight are Gp0.20%, V0.20%, Zr0.20%, Mn0.20%, Ti0.20%, Fe0.40%, Si0.08%, Cr0.20%, Cu0.40%, etc. are uniformly mixed with grain-refined powders, and then used in a tableting machine at 2.0×10 6 The mixed powder is cold-pressed into flake samples under the pressure of Pa;

[0042] (2) Put the sheet-like sample into a resistance sintering furnace filled with argon gas protection. During the sintering process, an intermediate continuous two-stage heating annealing method is adopted, and a gradient heating heating annealing method is adopted, that is, the above grain refiner metal is used. The temperature of phase transformation and microstructure change is usually between 500-1...

Embodiment 3

[0052] 1. According to the composition ratio of the present invention, three kinds of intermediate grain refining alloy samples are made, which are respectively 1# sample, 2# sample and 3# sample, and their composition ratios are as follows:

[0053] The weight percentages of the 1# sample components are: Mn0.20%, Ti0.20%, Si0.04%, Cr0.20%, Cu0.40%, namely Mn~2g, Ti~2g, Si~0.4g, Cr~2g , Cu~4g, total 10.4g.

[0054] The weight percentages of the 2# sample components are: Gp0.10%, V0.10%, Zr0.10%, Mn0.20%, Ti0.20%, Si0.04%, Cr0.20%, Cu0.40%, namely Gp ~1g, V~1g, Zr~1g, Mn~2g, Ti~2g, Si~0.4g, Cr~2g, Cu~4g. Total 13.4g

[0055] The weight percentages of the 3# sample components are: Gp0.20%, V0.20%, Zr0.20%, Mn0.20%, Ti0.20%, Si0.04%, Cr0.20%, Cu0.40%, namely Gp ~2g, V~2g, Zr~2g, Mn~2g, Ti~2g, Si~0.4g, Cr~2g, Cu~4g, 16.4g in total

[0056] 2. Sintering: first press the master alloy material of the 1# sample, 2# sample and 3# sample, heat it to 750℃ and keep it for 2h, then heat...

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Abstract

The invention discloses a graphene-supported grain refinement material of Al-Mg alloy wire and a preparation method thereof. The graphene-supported grain refinement material is composed of a weight percentage of Gp0.10%-0.20%. , V0.10%‑0.20%, Zr0.10%‑0.20%, Mn0.20%, Ti0.20%, Fe0.40%, Si0.08%, Cr0.20%, Cu0.40%; the preparation The method is to use the intermediate grain refining alloy to be uniformly mixed and then briquetting, sintering annealing, mechanical alloying and melting. into the aluminum-magnesium solution. The invention improves the strength and conductivity of the aluminum-magnesium alloy wire, reduces the breakage rate and fineness of the material wire, and improves the performance of the aluminum-magnesium alloy wire material.

Description

technical field [0001] The invention relates to the technical field of aluminum-magnesium alloy wire production, in particular to a graphene-loaded grain refinement material for Al-Mg alloy wire and a preparation method thereof. Background technique [0002] Aluminum-magnesium alloy wire is widely used in cable television coaxial cable, communication cable braided shielded network cable due to its low density, high strength, good strong plasticity, electrical conductivity, corrosion resistance and winding resistance and a series of excellent comprehensive properties. As well as the military industry and aerospace fields. However, the existing aluminum-magnesium alloy wires still have electrical problems such as generally low wire hardness, toughness, tensile and compressive strength, elongation and other physical properties, as well as low electrical conductivity and high resistivity, especially when the wire is Φ0.10mm or less. In terms of ultra-fine direction development,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/10C22C21/06B22F9/04C22C1/05C22C30/02
CPCC22C1/1036C22C1/1005C22C21/06B22F9/04C22C1/05C22C30/02B22F2009/041B22F2009/043
Inventor 黄显吞吴顺意
Owner BAISE UNIV
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