Time：2023.11.07Browse：1
Graphite is divided into two types: natural graphite; The second is artificial graphite. Although with the improvement of manufacturing technology, the function of artificial graphite is no less than that of natural graphite in many cases, natural graphite has always maintained its unique advantages in some fields.
Among natural graphite resources, flake graphite (crystalline graphite) has low reserves and high value. It has good conductivity, thermal conductivity, lubrication, and oxidation resistance, and is widely used in industries such as metallurgy, machinery, chemical engineering, refractory materials, aerospace, etc. It is one of the indispensable non-metallic materials for the development of high-tech today.
Natural flake graphite peeling
The flake graphite structure is flaky and has good surface properties, making it one of the best floatable minerals in nature. According to the size of the scales, flake graphite can be divided into large flake graphite (with particle sizes of 0.3mm, 0.18mm, and 0.15mm) and fine flake graphite (with particle sizes below 0.15mm). However, in comparison, large scale graphite has more advantages in the market and application, and the price of large scale graphite with the same grade is also much higher than that of ultrafine scale graphite.
Application of flake graphite
The purity of graphite is closely related to its application. It can be said that technical purification is a prerequisite for processing graphite raw materials into graphite materials. Afterwards, according to the applied field, graphite needs to be further processed in terms of particle size, morphology, or performance. For specific purification operations, you can click on the right side to read "How to improve the purity of graphite, researchers do it.
With the progress of heating technology and acid leaching technology, the purity of graphite that can be obtained is becoming higher and higher. When the purity reaches 99% -99.99% or even higher carbon content, graphite has also been widely used in carbon composite materials, electronic industry, friction materials, lubrication and other fields.
2023-03-20The size of a material particle determines its proper name. As you asked, micro-powder is a micron-sized powder. In the graphite industry, micro-powder generally refers to a particle with a median diameter of 10~45 microns, and ultra-micro-powder to a particle with a median diameter of less than 5 microns.
（1） Graphite electrodes are mainly made from petroleum coke and needle coke as raw materials, and coal tar pitch as a binder. They are made by calcination, batching, kneading, pressing, roasting, graphitization, and machining. They are conductors that release electrical energy in the form of an arc in an electric arc furnace to heat and melt the furnace material. According to their quality indicators, they can be divided into ordinary power, high power, and ultra-high power. Graphite electrodes include:(1) Ordinary power graphite electrode. Allowing the use of graphite electrodes with a current density below 17A/cm2, mainly used for ordinary power electric furnaces such as steelmaking, silicon smelting, and yellow phosphorus smelting.(2) Anti oxidation coated graphite electrode. A graphite electrode coated with an antioxidant protective layer on the surface forms a protective layer that is both conductive and resistant to high-temperature oxidation, reducing electrode consumption duri2023-10-25Carbon and graphite products
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