Preparation method of fine-structure isotropic isostatic pressing graphite

An isotropic and isostatic pressing technology, applied in the field of graphite material preparation, can solve the problems of complex preparation method, low product index, and high process requirements, and achieve scientifically simple preparation process, good isotropy, and selection of raw materials. reasonable effect

Pending Publication Date: 2022-06-17
FIVE STAR NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art, solve or at least alleviate the problems of the existing preparation method with complex process, high process requirements and low product index, and provide a kind of fine structure isotropic isostatic graphite Preparation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of fine-structure isotropic isostatic graphite, comprising the following steps:

[0027] S1. One-time grinding, the pitch coke is ground into a spherical powder of 0.5-10um through a pulverizer; then two components A and B are classified by a classifier, wherein the particle size of the A component is smaller than that of the B component;

[0028] S2, mixing, mixing the A component, the B component and the medium temperature modified asphalt in the mixing pot in step S1 to obtain a paste;

[0029] S3, secondary milling, the paste in step S2 is ground into spherical powder with a particle size of 5-20um by a pulverizer to obtain paste powder;

[0030] S4, pressing, the paste powder in the step S3 is loaded into the rubber mold, put into the liquid and pressurized to obtain a green body;

[0031] S5, once roasting, put the green body in step S4 into a stainless steel barrel, fill with yellow sand around the green body and ram it, put the stainless st...

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PUM

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Abstract

The invention relates to a preparation method of fine-structure isotropic isostatic pressing graphite, which is characterized by comprising the following steps: S1, primary grinding, S2, mixing, S3, secondary grinding, S4, pressing, S5, primary roasting, S6, dipping, S7, secondary roasting and S8, graphitizing. The invention aims to solve or at least alleviate the problems of complex technology, high technological process requirement and low product index of the existing preparation method, and provides the preparation method of the fine-structure isotropic isostatic pressing graphite.

Description

technical field [0001] The invention relates to the technical field of preparation of graphite materials, in particular to a preparation method of isotropic isostatically pressed graphite with fine structure. Background technique [0002] High-strength isotropic graphite is a new product developed internationally in the past 50 years. It has a series of excellent properties such as good thermal conductivity and electrical conductivity, high temperature resistance and corrosion resistance, and is closely related to today's high technology. Not only has great achievements in civilian use, but also occupies an important position in the forefront of national defense. It is an irreplaceable material for the manufacture of single crystal furnaces, metal continuous casting graphite molds, and graphite electrodes for electrical discharge machining. [0003] With the rapid development of the industry, the requirements for carbon graphite materials are getting higher and higher, not ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/52
CPCC04B35/521C04B2235/77C04B2235/96C04B2235/9607
Inventor 赵俊一张亮温锋彬张结实余志国王永振赵向民赵海鹏程相龙
Owner FIVE STAR NEW MATERIAL TECH CO LTD
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