graphite electrode uses in which application area
Graphite electrode uses in which application area?
1. Graphite electrode uses in Refractory materials include refractory bricks, crucibles, continuous casting powder, mold cores, mold detergents and high temperature resistant materials.
Magnesia carbon bricks magnesia carbon refractories were successfully developed by the United States in the mid-1960s; magnesia carbon bricks have been widely used in steelmaking worldwide and have become a traditional use of graphite. Aluminum-carbon bricks and aluminum-carbon refractories are mainly used for continuous casting, protective covers for slab self-positioning pipelines, underwater nozzles, and oil well blasting cylinders. Shaped and refractory crucibles made of graphite and related products, such as crucibles, retorts, stoppers and nozzles, have high fire resistance, low thermal expansion, and are subjected to metal infiltration and erosion during the process of smelting metal It is also stable, with good thermal shock stability and excellent thermal conductivity at high temperatures, so graphite and related products are widely used in the process of direct melting of metals.
Graphite and other impurity materials can be used as recarburizers when used in the steelmaking industry. The range of carbonaceous materials used in carburizing is very wide, including artificial graphite, petroleum coke, metallurgical coke and natural graphite. Graphite for steelmaking recarburizers is still one of the main uses of earthy graphite in the world.
3. As a conductive material
Graphite is widely used in the electrical industry as electrodes, brushes, carbon rods, carbon tubes, positive electrodes of mercury rectifiers, graphite washers, telephone parts, coatings for television picture tubes, and so on. Among them, graphite electrode is the most widely used. When smelting various alloy steels and ferroalloys, graphite electrode is widely used. Graphite used in the electrical industry has very high requirements for particle size and grade.
4. As a wear-resistant and lubricating material, graphite is often used as a lubricant in the machinery industry.
Lubricating oil cannot be used under high-speed, high-temperature, and high-pressure conditions, while graphite wear-resistant materials can work at a temperature of 200°C to 2000°C and at high sliding speeds (loom / s) without lubricating oil. Many equipment for transporting corrosive media widely use graphite materials to make piston rings, seal rings and bearings. When they are in operation, do not need to add lubricating oil. Graphite emulsion is also a good lubricant for many metal processing (wire drawing, pipe drawing).