High-temperature abrasion resistant composite material and preparation method thereof

A composite material, high temperature wear resistance technology, applied in the field of copper matrix composite materials, can solve the problems of poor toughening and high temperature resistance, low strength at room temperature and high temperature, difficult forming, etc. Simple preparation process

Active Publication Date: 2018-03-02
CENT SOUTH UNIV
View PDF7 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems of low room temperature and high temperature strength and poor toughness of existing copper-based composite materials, the present invention provides a high-temperature wear-resistant composite material and a preparation method thereof, that is, synergistically reinforced by short carbon fibers and oxide and carbide particles. Copper-based composite materials, and through high-energy ball milling combined with heat treatment process, the problems of uneven dispersion of short carbon fibers and micron-sized oxide particles in the matrix, resulting in poor toughening and high temperature resistance, and difficult forming have been solved. Copper-based composite material with high toughness, high temperature resistance and good wear resistance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-temperature abrasion resistant composite material and preparation method thereof
  • High-temperature abrasion resistant composite material and preparation method thereof
  • High-temperature abrasion resistant composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0097] The high-temperature wear-resistant composite material prepared in Example 1 includes the following components in terms of mass percentage:

[0098] Electrolytic copper powder 72%, short carbon fiber 2.0%, flake graphite powder 15.0%, fine alumina powder 1.0%, coarse alumina powder 10.0%. The particle size of electrolytic copper powder is 45 μm, the diameter of short carbon fiber is 7 μm, and the length is 2 mm, the particle size of flake graphite powder is 50 μm, the particle size of coarse alumina powder is 150 μm, and the particle size of fine alumina powder is 3 μm.

[0099] Firstly, the composite pre-alloyed powder I of short carbon fiber and copper powder is prepared, which includes the following components in terms of mass percentage: electrolytic copper powder 96%, short carbon fiber 4.0%. The electrolytic copper powder and short carbon fiber are subjected to high-energy ball milling, the ball milling speed is 260 rpm, and the ball milling time is 8 hours; final...

Embodiment 2

[0103] The high-temperature wear-resistant composite material prepared in Example 2 includes the following components in terms of mass percentage:

[0104] Electrolytic copper powder 81%, flake graphite powder 9.0%, fine zirconia powder 1.0%, coarse alumina powder 8.0%, silicon oxide powder 1.0%, short carbon fiber 2.5%. The particle size of electrolytic copper powder is 60 μm, the particle size of flake graphite powder is 40 μm, the particle size of fine zirconia powder is 2 μm, the particle size of coarse alumina powder is 120 μm, the particle size of silica powder is 50 μm, the diameter of short carbon fiber is 8 μm, the length 2mm.

[0105] Firstly, the composite pre-alloyed powder I of short carbon fiber and copper powder is prepared, which includes the following components in terms of mass percentage: electrolytic copper powder 95%, short carbon fiber 5.0%. The electrolytic copper powder and short carbon fiber are subjected to high-energy ball milling, the ball milling ...

Embodiment 3

[0109] The high-temperature wear-resistant composite material prepared in Example 3 includes the following components in terms of mass percentage:

[0110] Electrolytic copper powder 77.5%, flake graphite powder 9.0%, short carbon fiber 2%, fine alumina powder 1.5%, coarse alumina powder 9.0%, silicon carbide powder 1.0%. The particle size of electrolytic copper powder is 50 μm, the particle size of flake graphite powder is 45 μm, the particle size of fine alumina powder is 1 μm, the particle size of coarse alumina powder is 80 μm, and the particle size of silicon carbide powder is 50 μm.

[0111] Firstly, the composite pre-alloyed powder I of short carbon fiber and copper powder is prepared, which includes the following components in terms of mass percentage: electrolytic copper powder 96%, short carbon fiber 4.0%. The electrolytic copper powder and short carbon fiber are subjected to high-energy ball milling, the ball milling speed is 250 rpm, and the ball milling time is 8 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to view more

Abstract

The invention relates to a high-temperature abrasion resistant composite material and a preparation method thereof. The high-temperature abrasion resistant composite material is prepared from raw materials of the following components, by mass, of 1.0%-3.0% of short carbon fibers, 0.5%-1.0% of fine ceramic particles, 1.5%-10.0% of coarse ceramic particles, 6.0%-15.0% of graphite powder and the balance copper powder. The preparation method of the high-temperature abrasion resistant composite material comprises the steps that firstly, composite pre-alloyed powder I and spherical composite pre-alloyed powder II are prepared through the high-energy ball-milling technology with appropriate ball-milling parameters and the annealing technology respectively; then, the coarse ceramic particles, thegraphite powder, the copper powder, the composite pre-alloyed powder I and the spherical composite pre-alloyed powder II are proportioned according to the designed components and mixed uniformly, andthus mixed powder is obtained; and a high-performance finished product can be obtained after pressing and sintering. The designed and prepared copper-based composite material is excellent in mechanical performance, high-temperature resistant performance and abrasion resistant performance and high in conductivity, and the preparation technology is simple.

Description

technical field [0001] The invention relates to a copper-based composite material, in particular to a high-temperature wear-resistant composite material and a preparation method thereof. Background technique [0002] Copper has excellent electrical conductivity, thermal conductivity and corrosion resistance, and is easy to process, but under high temperature conditions, it is difficult to balance the conductivity and strength of copper alloys. It is imminent to develop high-strength, high-conductivity, wear-resistant, high-temperature-resistant copper-based composite materials that not only have excellent electrical conductivity, but also have high strength, superior high-temperature performance and anti-friction performance. Graphite and carbon fiber modified copper matrix composites are now used as a This metal matrix composite material has been widely used in machinery manufacturing, aerospace and other fields. Especially for the manufacture of high current density brus...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C22C49/14C22C47/14C22C101/10
CPCC22C47/14C22C49/14
Inventor 方华婵肖鹏
Owner CENT SOUTH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap