A kind of preparation method and graphite product of mold compression molding graphite product

Abstract

The invention discloses a method for preparing a graphite product through mould compression moulding and the graphite product. The preparation method includes steps of crushing, screening, compounding, dry mixing, mixing kneading, forming, primary calcining, impregnating, secondary calcining and graphitizing to obtain the finished product. An aggregate in the compounding step is formed by calcinedcoke, pitch coke and needle coke in a weight ratio of (75-77):(15-20):(5-8). By adjustment of a formula and forming conditions, high forming efficiency and high product manufacturing speed are realized, energy consumption in a production process can be substantially saved, and cost reduction and economic benefit increasing are realized.

Description

technical field [0001] The invention belongs to the field of graphite materials, and in particular relates to a method for preparing graphite products molded by mold pressing and the graphite products. Background technique [0002] Graphite is metamorphic carbonaceous matter of organic origin, most commonly found in marble, schist, or gneiss. Coal seams can partially form graphite through thermal metamorphism, and a small amount of graphite is the primary mineral of igneous rocks. Graphite products maintain the original chemical properties of flake graphite and have strong self-lubricating properties. Due to its special structure, graphite products have many characteristics such as high temperature resistance, corrosion resistance, oxidation resistance, high density, high tensile and bending strength, so graphite products have been widely used in metallurgy, chemical industry, petrochemical industry, high energy physics, aerospace, etc. , electronics and so on. [0003] I...

AI Technical Summary

Problems solved by technology

In order to ensure the excellent performance of graphite products, the molding method in the current preparation method of graphite products is relatively slow, and many times of impregnation and roasting are required in the processing process, so not only the processing time is long, but also the cost of manpower and material resources is high.

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