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The conductivity of graphite is 100 times higher than that of ordinary nonmetallic ores. The thermal conductivity is higher than that of steel, iron, lead and other metal materials. The thermal conductivity decreases with the increase of temperature, and even at extremely high temperatures, graphite becomes an insulator. The reason why graphite can conduct electricity is that each carbon atom in graphite and other carbon atoms only form three covalent bonds, and each carbon atom still retains one free electron to transfer charge.
Graphite rod is a non-metallic product. As a necessary cutting consumable before welding in the carbon arc air gouging cutting process, it is made of carbon, graphite and appropriate adhesive by extrusion forming, baking and rotating at 2200 ℃, and then plating a layer of copper. It has high temperature resistance, good conductivity, and is not easy to break. It is suitable for cutting metal into the required shape.
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Yixing Jiuxi Carbon Products Co., Ltd.