High-temperature high-strength high-conductivity high-wear-resistant copper-based composite material and preparation method thereof

A copper-based composite material, high-strength technology, applied in the field of non-ferrous metal alloys, can solve the problems of poor electrical conductivity, strength, wear resistance and other comprehensive properties, poor bonding between the micro-nano particle reinforced phase and the copper matrix interface, etc., to achieve convenient preparation. , Reduce inclusion and gas content, increase the effect of mechanical bite force

Inactive Publication Date: 2019-08-20
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a high-temperature, high-strength, high-conductivity, high-conductivity, high-conductivity and wear-resistant copper-based composite material preparation method to solve the problem of poor interface bonding between the micro-nano particle reinforcement phase and the copper matrix in the composite material prepared by the existing method
[0007] The second object of the present invention is to provide a high-temperature, high-strength, high-conductivity, high-conductivity and wear-resistant copper-based composite material to solve the problem of poor comprehensive performance of existing copper-based composite materials such as electrical conductivity, strength, and wear resistance.

Method used

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  • High-temperature high-strength high-conductivity high-wear-resistant copper-based composite material and preparation method thereof
  • High-temperature high-strength high-conductivity high-wear-resistant copper-based composite material and preparation method thereof
  • High-temperature high-strength high-conductivity high-wear-resistant copper-based composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0042] The preparation method of the high-temperature, high-strength, high-conductivity, and wear-resistant copper-based composite material of this embodiment uses WC / Cu-Al 2 O 3 Take the preparation of composite material as an example, WC / Cu-Al 2 O 3 In composite materials, the mass of WC accounts for 16.3%, and the rest is Cu and Al 2 O 3 , Al 2 O 3 The mass percentage of Cu is 1%; the specific preparation process is as follows:

[0043] (1) Preparation of copper-based electrodes

[0044] 1) Press WC / Cu-Al 2 O 3 The composition of the composite material prepared the following raw materials: WC powder 3.26kg (particle size 0.5μm), Cu 2 O powder 0.926kg (particle size is 2μm; 1.2 times the theoretical required mass), Cu-Al alloy powder 16.74kg (particle size is 10μm, Al content is 0.58%); put each raw material in the mixer Mix, and the mixing time is 2h to obtain mixed powder;

[0045] 2) Put the mixed powder into the rubber sleeve and perform mechanical vibration for 40 seconds, rol...

Embodiment 2

[0050] The method for preparing the high-temperature, high-strength, high-conductivity, and wear-resistant copper-based composite material of this embodiment is based on La 2 O 3 / Cu-TiB 2 Take the preparation of composite materials as an example, La 2 O 3 / Cu-TiB 2 In composite materials, La 2 O 3 The mass percentage is 5%, the rest is Cu and TiB 2 , TiB 2 The mass percentage of Cu is 0.5%; the specific preparation process is as follows:

[0051] (1) Preparation of copper-based electrodes

[0052] 1) Press La 2 O 3 / Cu-TiB 2 The composition of the composite material prepares the following raw materials: La 2 O 3 Powder 1kg (particle size of 2μm), Ti powder 0.065kg (particle size of 1μm), B powder 0.029kg (particle size of 0.5μm), Cu powder 18.9kg (particle size of 10μm); put each raw material in the mixer Internal mixing, the mixing time is 8h to obtain mixed powder;

[0053] 2) Put the mixed powder into the rubber sleeve and perform mechanical vibration for 60 seconds, roll the mat...

Embodiment 3

[0058] The method for preparing the high-temperature, high-strength, high-conductivity, and wear-resistant copper-based composite material of this embodiment uses TiB 2 / Cu-ZrB 2 Take the preparation of composite materials as an example, TiB 2 / Cu-ZrB 2 In composite materials, TiB 2 The mass percentage is 8%, the rest is Cu and ZrB 2 , ZrB 2 The mass percentage of Cu is 0.5%; the specific preparation process is as follows:

[0059] (1) Preparation of copper-based electrodes

[0060] 1) Press TiB 2 / Cu-Al 2 O 3 The composition of the composite material prepares the following raw materials: TiB 2 Powder 1.6kg (particle size 5μm), Zr powder 0.088kg (particle size 1μm), B powder 0.744kg (particle size 1μm), Cu powder 18.59kg (particle size 10μm); put each raw material in the mixer Internal mixing, mixing time is 16h, to obtain mixed powder;

[0061] 2) Put the mixed powder into the rubber sleeve and sequentially perform mechanical vibration for 70s, roll the material for 8 minutes, and r...

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Abstract

The invention relates to a high-temperature high-strength high-conductivity high-wear-resistant copper-based composite material and a preparation method thereof. The preparation method of the high-temperature high-strength high-conductivity high-wear-resistant copper-based composite material comprises the following steps of adopting a copper-based electrode as a consumable electrode, adopting a vacuum consumable arc melting method for melting and ingot-casting, and obtaining the high-temperature high-strength high-conductivity high-wear-resistant copper-based composite material. The copper-based electrode comprises a copper matrix and nanoscale ceramic particles and micro-scale reinforced particles dispersed in the copper matrix; the strength of the copper matrix is improved through the nanoscale ceramic particles; the additive amount of the nanoscale ceramic particles is 0.1 to 1.5 percents by weight of the copper matrix; the wear resistance of the copper matrix is improved through the micro-scale reinforced particles; and the additive amount of the micro-scale reinforced particles is 0.5 to 20 percents by weight of the composite material. According to the preparation method, theinterface bondability of the nanoscale ceramic particles and the copper matrix is effectively improved, the effect on improving the strength and the hardness of the matrix through the nanoscale ceramic particles is ensured, and the plasticity and the toughness of the composite material are improved.

Description

Technical field [0001] The invention belongs to the field of non-ferrous metal alloys, and specifically relates to a high-temperature, high-strength, high-conductivity, high-wear-resistant copper-based composite material and a preparation method thereof. Background technique [0002] Copper and copper-based composite materials have good electrical conductivity and good mechanical properties, but the low strength of pure copper limits its application. In order to improve the strength of copper-based materials, copper-based materials are often increased by deformation or solid solution-aging However, the working temperature of pure copper and precipitation-strengthened copper alloys (Cu-Cr, Cu-Zr, Cu-Ni-Si, etc.) generally does not exceed 550°C. When the working temperature is greater than 550°C, this type of copper alloy will have the problem of a significant drop in strength and electrical conductivity. Particle reinforcement often uses ceramic particles as the reinforcing phase...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/10C22C9/00C22C32/00
CPCC22C1/1036C22C9/00C22C32/0005C22C32/0021C22C32/0047C22C32/0073C22C1/1052
Inventor 宋克兴冯江国秀花王旭李韶林周延军程楚刘海涛张彦敏赵培峰林焕然张祥峰杨豫博
Owner HENAN UNIV OF SCI & TECH
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