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A preparation method of nano carbide reinforced aluminum matrix composite welding wire

A composite material and enhanced aluminum-based technology, applied in the field of aluminum alloy materials, can solve the problems of low production efficiency, high price of carbide nanoparticles, and high comprehensive cost

Active Publication Date: 2021-09-10
迈特李新材料(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the rapid cooling method cannot realize industrial production because of its high requirements on equipment, low production efficiency and high overall cost.
[0007] In summary, if carbide nanoparticles are used to prepare aluminum alloy reinforced with carbide nanoparticles, the high price of carbide nanoparticles will limit the scope of application of the product
The carbide nanoparticles prepared by the rapid cooling method have the same disadvantages, the production equipment of the rapid cooling method is expensive, the production efficiency is low, and it cannot be mass-produced

Method used

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  • A preparation method of nano carbide reinforced aluminum matrix composite welding wire
  • A preparation method of nano carbide reinforced aluminum matrix composite welding wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] In this embodiment, a new type of nanometer titanium carbide (TiC) ceramic particle reinforced aluminum matrix composite welding wire includes the following components by mass ratio: 7075 (5.1%-6.1% Zn, 2.1%-2.9% Mg, 1.2%-2.0 %Cu, the rest is Al, the content of each element is based on the total weight of various metal elements), 2% (the content of nanoparticles is based on the total weight of nanoparticles and metal matrix), the diameter is 40-110nm (the average diameter is 100nm below) of TiC nanoparticles. The production process is divided into three parts, first in-situ synthesis of titanium carbide nanoparticles reinforced pure aluminum composite material, the mass fraction of TiC nanoparticles in the pure aluminum composite material is 10%, and then the pure aluminum composite material is used to configure the alloy and prepare the ingot Finally, the ingot is extruded and wire-drawn to obtain nano-carbide ceramic particle-reinforced aluminum matrix composite weldi...

Embodiment 2

[0054] In this embodiment, a new type of nano-zirconium carbide (ZrC) ceramic particle reinforced aluminum matrix composite material welding wire includes the following components by mass ratio: 2024 (3.8%-4.9% Cu, 1.2%-1.8% Mg, the rest is Al, The content of each element is based on the total weight of various metal elements), and 2% (the content of nanoparticles is based on the total weight of nanoparticles and metal matrix) ZrC nanoparticles with a diameter of 60-120nm (average diameter below 100nm).

[0055] The production process is divided into three parts, first in situ synthesis of zirconium carbide nanoparticles reinforced pure aluminum composite material, the mass fraction of ZrC nanoparticles in the pure aluminum composite material is 15%, and then the pure aluminum composite material is used to configure the alloy and prepare the ingot Finally, the ingot is extruded and wire-drawn to obtain nano-carbide ceramic particle-reinforced aluminum matrix composite welding w...

Embodiment 3

[0069] In this embodiment, a new type of nano-zirconium carbide (ZrC) ceramic particle reinforced aluminum matrix composite material welding wire includes the following components by mass ratio: 2024 (3.8%-4.9% Cu, 1.2%-1.8%, Mg and the rest are Al, The content of each element is based on the total weight of various metal elements), and 2% (the content of nanoparticles is based on the total weight of the nano particles and the metal matrix) ZrC nanoparticles with a diameter of 40-100nm.

[0070] The production process is divided into three parts, first in situ synthesis of zirconium carbide nanoparticles reinforced pure aluminum composite material, the mass fraction of ZrC nanoparticles in the pure aluminum composite material is 20%, and then the pure aluminum composite material is used to configure the alloy and prepare the ingot Finally, the ingot is extruded and wire-drawn to obtain nano-carbide ceramic particle-reinforced aluminum matrix composite welding wire.

[0071] Th...

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Abstract

The invention relates to a preparation method of a nano-carbide reinforced aluminum matrix composite welding wire. The basic idea of ​​the preparation method is as follows: firstly prepare a sugar-carbon-salt mixed solid, then melt pure aluminum, add an appropriate amount of salt to protect the aluminum, and prepare the sugar Carbon salt mixed solids were added and waited for the reaction to complete. The present invention prepares sugar-carbon-salt mixed solids by binding sugars, and uses the mixed solids as the reaction speed control medium, so that the nucleation and growth speed of nanoparticles is reduced to a controllable range, without using rapid cooling equipment to suppress growth of nanoparticles. The production process of this method is simple, and at the same time, no special production equipment is needed in the production process. The traditional aluminum alloy production equipment can complete the production. The equipment requirements are low, and the production raw material selection range is wide, and the comprehensive production cost is low. The large-scale application of matrix composite welding wire provides the possibility.

Description

technical field [0001] The invention relates to a preparation method of a nano-carbide-reinforced aluminum matrix composite material welding wire, which belongs to the technical field of aluminum alloy materials. Background technique [0002] Aluminum alloy has the advantages of high specific strength, specific stiffness, fatigue strength and excellent corrosion resistance. It is the material of choice for realizing lightweight structures, and has broad application prospects in aerospace, automotive transportation and other fields. During use, aluminum alloy parts need to be connected to each other, and welding is the most commonly used connection method in the field of aluminum alloys. Due to the high thermal cracking sensitivity of some series of aluminum alloys, the welding wire with the same composition as the parent body cannot be used as the filler material during the welding process, resulting in poor mechanical properties of the weld zone. For example, when welding ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/40C22C1/10C22C21/00C22C32/00B23K35/28
CPCC22C1/1036C22C21/00C22C32/0052B23K35/286B23K35/40C22C1/1052
Inventor 池元清刘伟清
Owner 迈特李新材料(深圳)有限公司
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