Graphite Electrodes heat and melt the steel scrap inside the electric arc furnace.
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There are various ways to make iron, for example, the blast furnace method and the electric arc furnace method. The electric arc furnace method recycles used iron scrap by melting it in an electric arc furnace. It is the graphite electrodes inside the furnace that actually heat and melt the iron.
Graphite has high thermal conductivity and is very resistant to heat and impact. It also has low electrical resistance, which means it can conduct the large electrical currents needed to melt iron. In recent years, graphite electrodes have been made even more efficient: they can now conduct even higher currents and more power.
Natural graphite is mostly consumed for refractories, batteries, steelmaking, expanded graphite, brake linings, foundry facings, and lubricants. Graphene, which occurs naturally in graphite, has unique physical properties and is among the strongest substances known.
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Natural graphite in steelmaking mostly goes into raising the carbon content in molten steel and can also be used to lubricate the dies used to extrude hot steel. Carbon additives are subject to competitive pricing from alternatives such as synthetic graphite powder, petroleum coke, and other forms of carbon. A carbon raiser is added to increase the carbon content of the steel to the specified level.
These are electrodes made from graphite and used in the melting of metals such as steel and iron. Graphite is a type of carbon having a very high melting point in addition to being a good electric conductor.
The main raw materials used to manufacture them are petroleum coke mixed with needle coke and tar. Remember, tar is a special kind of resin that acts as a binder for the Graphite Electrodes.
You will find them in cylindrical shapes and various sizes with the length being between 1 to 2 meters. They are produced using a process called needle coke manufacturing.
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