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Before Graphite Parts Processing to Understand What’s the Nature of Graphite

Graphite Parts processing Graphite is a carbon element crystalline mineral, its crystalline frame is hexagonal layered structure. The distance between each layer is 3.40 people, and the spacing of carbon atoms in the same network layer is 1. 42A. It is a six-square crystalline system with a complete layer-like cleavage. The cleavage surface is dominated by molecular bonds, and its attraction to molecules is weaker, so its natural flotation is very good.

Graphite Parts Processing Introduction graphite soft, black and gray, a greasy feeling, can pollute the paper. Hardness is the same, along with the increase of impurities in the vertical direction of the hardness can be increased to $number. The proportion is 1. E. 3. Under the condition of isolating oxygen, the melting point is above 3,000 Shan, which is one of the most temperature-tolerant minerals.

Pure graphite in nature is not, which often contains Si02, A1203, Fe0, Cao, $literal, Cu0 and other impurities. These impurities often occur in the form of quartz, pyrite, carbonate and other minerals. In addition, there are water, asphalt, CO2, H2, CH4, N2 and other gas parts. Therefore, the analysis of graphite, in addition to the determination of fixed carbon content, but also must be simultaneous determination of volatile and ash content.

The process properties of graphite are mainly determined by its crystalline morphology. Different crystalline forms of graphite minerals have different industrial value and use. In industry, the natural graphite is divided into three categories according to the crystalline form.

1. Dense crystalline Graphite

Dense crystalline graphite is also called block graphite. Such graphite crystals are visible to the naked eye. The particle diameter is greater than 0. 1 mm. The crystals are arranged in a disorderly, dense block structure. This: Graphite is characterized by high grade, the general carbon content is 60, sometimes up to 80, but its plasticity and creamy is not as good as flake graphite.

2. Flake Graphite

The graphite crystals are scale-shaped, which is metamorphosed under high pressure, with large scales and fine scales. This type of graphite ore is characterized by low grade, generally between $number, or 100. It is one of the best ores in nature, which can be used for high grade graphite concentrate after many grinding. The flotation, lubricity and plasticity of this kind of graphite are superior to other types of graphite, so its industrial value is greatest.

3. Hidden crystalline Graphite

Hidden quality graphite, also known as amorphous graphite or soil-like graphite, the crystal diameter of this graphite is generally less than 1 microns, is a collection of microcrystalline graphite, only under the electron microscope to see the crystal. This type of graphite is characterized by a soil-like surface, a lack of luster, and poor lubrication. High grade. General $number. A few up to 90%. Ores are less selective.