2022-11-23
2023-08-08Carbon rods are made from carbon or graphite materials as the substrate. Carbon rods can be used as electrodes for arc discharge in various electrical equipment that generate thermal or light energy. During arc discharge, high temperature and strong luminous intensity are generated.Carbon rods can be divided into film projection carbon rods, high color temperature photography carbon rods, ultraviolet linear and sunlight type carbon rods, photographic plate making carbon rods, carbon arc air gouging carbon rods, precision casting carbon rods, electrolytic carbon rods, arc lighting carbon rods, spectral carbon rods, battery carbon rods, and welding carbon rods according to their purposes.Arc lighting carbon rods are used in searchlights, as well as in strong arc lamps for film projection, photography, plate making, and ultraviolet light sources. Carbon arc air gouging carbon rods are used for arc cutting of metal materials, drilling, eliminating casting risers and other defects. Spectra
2023-08-07Impermeable graphite is an ideal material with good corrosion resistance and thermal conductivity in chemical production. It can be used to make heat exchangers, reaction tanks, absorption towers, gas combustion towers, hydrochloric acid synthesis furnaces, graphite centrifugal pumps, jet pumps, and various pipelines and joints. Impermeable graphite is divided into three categories:1. Impregnated impermeable graphite products - This is made by impregnating the graphite matrix. Impregnating agents not only reduce the porosity of graphite, but also increase the compressive strength and tensile strength of graphite materials by 1-2.5 times and 4-5 times respectively; Increase bending strength by 2-3 times; Increase the impact strength by 2-2.5 times. Commonly used impregnating agents include phenolic resin, furfural ketone resin, furfural alcohol resin, organic silicon resin, water glass, paraffin, divinylbenzene, asphalt, etc.2. Pressed impermeable graphite product - is a material made
2023-08-07Carbon rods are made from carbon or graphite materials as the substrate. Carbon rods can be used as electrodes for arc discharge in various electrical equipment that generate thermal or light energy. During arc discharge, high temperature and strong luminous intensity are generated.Carbon rods can be divided into film projection carbon rods, high color temperature photography carbon rods, ultraviolet linear and sunlight type carbon rods, photographic plate making carbon rods, carbon arc air gouging carbon rods, precision casting carbon rods, electrolytic carbon rods, arc lighting carbon rods, spectral carbon rods, battery carbon rods, and welding carbon rods according to their purposes.Arc lighting carbon rods are used in searchlights, as well as in strong arc lamps for film projection, photography, plate making, and ultraviolet light sources. Carbon arc air gouging carbon rods are used for arc cutting of metal materials, drilling, eliminating casting risers and other defects. Spectra
2023-08-07The graphite mold materials used for diamond tool manufacturing are mainly graphite materials with ultra-fine particle structure, high purity, and high degree of graphitization. The average diameter of graphite mold materials is less than 15 microns, even less than 10 microns, and the average pore size is less than 2 microns. The graphite mold made from this carbon raw material has advantages such as low porosity, dense structure, high surface finish, and strong oxidation resistance, with an average service life of 30-40 times.Electronic sintered graphite molds and transistor supports can be manufactured using artificial graphite materials with minimal thermal deformation. At present, they are widely used and have become indispensable materials for the development of the semiconductor industry.The electronic sintered graphite mold of hot pressed sintered diamond tools has dual functions of heating element and mold support in the manufacturing process of diamond tools. The quality of t
2023-08-03The flotation method is one of the conventional mineral purification methods that consumes less energy and reagents, and has lower costs. This is a major advantage of the flotation method for purifying graphite. However, when using the flotation method to purify graphite, it can only achieve a limited improvement in the grade of graphite. For flake graphite, using multi-stage grinding not only cannot completely dissociate its monomers, but also is not conducive to protecting the large flakes of graphite. Therefore, using flotation to further improve the graphite grade is not economical or scientific. To obtain high carbon graphite with a carbon content of over 99%, it is necessary to use chemical methods to purify the graphite.（1） Chlorination roasting methodThe low roasting temperature and low chlorine consumption of the chlorination roasting method greatly reduce the production cost of graphite. At the same time, the carbon content of graphite products is equivalent to that after tr
2023-08-03Flake graphite is obtained by mining and processing from graphite mines. The types of ore mined are different, and when processing flake graphite, it is also necessary to process it correctly based on the characteristics of the graphite ore. So how should we proceed with the operation? Let's have a simple understanding of flake graphite below.1. Mineral processing method for flake graphite cryptocrystalline graphite.Cryptocrystalline graphite crystals are very small, hence also known as microcrystalline graphite. Graphite particles are usually embedded in clay and difficult to separate. Due to the high grade of the raw ore (usually containing carbon), many graphite mines directly crush and process the extracted ore, selling graphite powder products.2. Mineral processing method for crystalline graphite in flake graphite.The natural floatability of crystalline graphite is good, and it is basically used in China. Due to the particle size of graphite sheets being one of its most important
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