Graphene-loaded grain refinement material of Al-Mg alloy wire and preparation method of graphene-loaded grain refinement material

A grain refinement and graphene technology, 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: 2020-12-29
BAISE UNIV
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  • 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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  • Graphene-loaded grain refinement material of Al-Mg alloy wire and preparation method of graphene-loaded grain refinement material
  • Graphene-loaded grain refinement material of Al-Mg alloy wire and preparation method of graphene-loaded grain refinement material
  • Graphene-loaded grain refinement material of Al-Mg alloy wire and preparation method of graphene-loaded grain refinement material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

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

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

[0036] (2) Put the flake sample into a resistance sintering furnace filled with argon gas protection, adopt the intermediate continuous double-stage temperature-raising annealing method in the sintering process, and adopt the gradient heating and temperature-raising annealing method, that is, use the above grain refiner metal The temperature of phase transition and microstructure change is usually between 500-1500°C. At the midpoint of this tempe...

Embodiment 2

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

[0041] (1) Under the protection of argon, the percentages by weight are Gp0.20%, V0.20%, Zr0.20%, Mn0.20%, Ti0.20%, Fe0.40%, Si0.08%, Cr0.20%, Cu0.40%, etc. uniformly mix the grain refinement powder, and then use the tablet machine to 6 Under the pressure of Pa, the mixed powder is cold pressed into a sheet sample;

[0042] (2) Put the flake sample into a resistance sintering furnace filled with argon gas protection, adopt the intermediate continuous double-stage temperature-raising annealing method in the sintering process, and adopt the gradient heating and temperature-raising annealing method, that is, use the above grain refiner metal The temperature of phase transition and microstructure change is usually between 500-1500°C. At the m...

Embodiment 3

[0052] One, according to the component proportioning of the present invention, made three kinds of intermediate grain refinement alloy samples, are respectively 1# sample, 2# sample and 3# sample, and its composition ratio is as follows:

[0053] The weight percentage of 1# sample composition is: Mn0.20%, Ti0.20%, Si0.04%, Cr0.20%, Cu0.40%, namely Mn-2g, Ti-2g, Si-0.4g, Cr-2g , Cu-4g, a total of 10.4g.

[0054] 2# sample composition weight percentage is: 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 percentage of the 3# sample composition is: 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, total 16.4g

[0056] 2. Sintering: first press the intermediate alloy material of 1# sample, 2# sample and 3# sample, heat it to 750°C and keep it for 2h, then heat it to 950°C and ...

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Abstract

The invention discloses a graphene-loaded grain refinement material of an Al-Mg alloy wire and a preparation method of the graphene-loaded grain refinement material. The graphene-loaded grain refinement material is prepared from, by weight percentage, 0.10%-0.20% of Gp, 0.10%-0.20% of V, 0.10%-0.20% of Zr, 0.20% of Mn, 0.20% of Ti, 0.40% of Fe, 0.08% of Si, 0.20% of Cr and 0.40% of Cu. The preparation method comprises the following steps of uniformly mixing intermediate grain refined alloy, and afterwards, conducting briquetting, sintering and annealing, mechanically alloying and melting. Thatis to say, other component materials except aluminum and magnesium are subject to sintering and ball-milling, and then briquetting, and are then put into an aluminum and magnesium solution. By meansof the preparation method, the strength and conductivity of the aluminum-magnesium alloy wire are improved, the wire breakage rate and fineness of the wire are reduced, and the material performance ofthe aluminum-magnesium alloy wire is improved.

Description

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

Claims

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Application Information

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Patent Type & Authority Applications(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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