Preparation method of isotropic copper-based isostatic graphite composite material

An isotropic and composite material technology, applied in the field of preparation of static pressure graphite composite materials, can solve the problems of high wear rate, low density, low hardness, etc., and achieve improved service life, enhanced mechanical strength, and strong thermal conductivity Effect

Inactive Publication Date: 2018-11-06
DATONG XINCHENG NEW MATERIAL CO LTD
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some problems such as low hardness, low density after sintering and high wear rate in the preparation of copper-based composite materials by traditional technology, especially as friction materials and military applications. Therefore, we propose an anisotropic The preparation method of isotropic copper-based isostatic graphite composites is used to solve the above problems

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] In this embodiment, a preparation method of isotropic copper-based isostatic graphite composite material is proposed, which includes the following steps:

[0024] S1: Material mixing: select petroleum coke, carbon black, special graphite powder and graphene, and mix and process petroleum coke, carbon black, special graphite powder and graphene to obtain mixed powder;

[0025] S2: Grinding treatment: adding the mixed powder described in S1 to the Raymond mill, and grinding the mixed powder;

[0026] S3: Isostatic pressing: putting the mixed powder described in S2 into a pressing machine for pressing to obtain a green body;

[0027] S4: Dipping treatment: Put the green body described in S3 into a dipping tank, and add medium temperature asphalt;

[0028] S5: reduction heat treatment: put the green body described in S4 into a roasting furnace, and pass hydrogen into the roasting furnace;

[0029] S6: Graphitization treatment: Put the green body described in S5 into the Acheson graphi...

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

No PUM Login to view more

Abstract

The invention discloses a preparation method of an isotropic copper-based isostatic graphite composite material. The preparation method comprises the following steps: S1, material mixing: selecting petroleum coke, carbon black, special graphite powder and graphene and performing mixed treatment on the petroleum coke, the carbon black, the special graphite powder and the graphene to obtain mixed powder; S2, grinding treatment: adding the mixed powder in the S1 in a Raymond mill and performing grinding treatment on the mixed powder; S3, isostatic molding: putting the mixed powder in the S2 in apress for pressing molding and obtaining a green body; S4, impregnating treatment: putting the green body in the S3 in an impregnating tank and adding medium-temperature pitch. The isotropic copper-based isostatic graphite composite material prepared with the preparation method disclosed by the invention is uniform and fine in structure, high in volume density, excellent in graphite physical and chemical indexes, high in mechanical strength, high in load, little in wear, resistant to high temperature, strong in thermal conductivity, excellent in corrosion resistance, long in service life and strong in stability.

Description

Technical field [0001] The invention relates to the technical field of graphite materials, in particular to a preparation method of isotropic copper-based isostatic graphite composite materials. Background technique [0002] Isostatic graphite not only has great achievements in civil use, but also occupies an important position on the cutting edge of national defense. It is a new type of material and is eye-catching. It is an irreplaceable material for manufacturing single crystal furnaces, metal continuous casting graphite molds, graphite electrodes for electric discharge machining, etc. It is also an excellent material for manufacturing rocket nozzles, deceleration materials and reflective materials for graphite reactors. In recent years, copper-based composite materials have broad application prospects in the fields of mechanical processing, transportation, and micromechanics due to their good electrical, thermal and friction properties. The material has the advantages of hig...

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): C04B35/528
CPCC04B35/521C04B35/522C04B35/528
Inventor 闵洁
Owner DATONG XINCHENG NEW MATERIAL CO LTD
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