Graphite has good chemical stability. After special processing, graphite has the characteristics of corrosion resistance, good thermal conductivity and low permeability, so it is widely used to make heat exchanger, reaction tank, condenser, combustion tower, absorption tower, cooler, heater, filter and pump equipment. Widely used in petrochemical, hydrometallurgy, acid and alkali production, synthetic fiber, paper and other industrial sectors, can save a lot of metal materials.
Graphite and its products have the properties of high temperature resistance and high strength. They are mainly used to make graphite crucible in metallurgical industry. In steelmaking, graphite is often used as the protector of ingot and the lining of metallurgical furnace. 2. As conductive material: used in the electrical industry as the positive pole of electrode, brush, carbon rod, carbon tube, mercury positive current device, graphite washer, telephone parts, TV picture tube coating, etc.
The high-power graphite electrode is allowed to use the graphite electrode with the current density of 18-25a / cm2, which is mainly used in the high-power arc furnace of steel making. Graphite electrode for EDM, also known as copper worker. Graphite electrode is easy to process, and the processing speed is faster than copper electrode. For example, when using milling technology to process graphite, its processing speed is 2-3 times faster than that of other metals, and no additional manual treatment is needed, while copper electrode needs manual grinding. Similarly, if high-speed graphite machining center is used to make electrodes, the speed will be faster, the efficiency will be higher, and there will be no dust problem. In these processes, choosing proper hardness tools and graphite can reduce the wear loss of tools and the damage of copper. If the milling time of graphite electrode is compared with that of copper electrode, graphite is 67% faster than that of copper electrode. In general, the machining speed of graphite electrode is 58% faster than that of copper electrode. In this way, the processing time is greatly reduced, and the manufacturing cost is also reduced.
