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An electric arc furnace is an electric furnace that uses the high temperature generated by an electrode arc to smelt ores and metals, so it is also called an electric furnace. When the gas discharge in the electric furnace forms an arc, the energy is very concentrated, and the arc zone temperature is above 3000 ℃.
When the electric furnace is tapped, the furnace body is inclined to the tapping direction at a certain angle (usually 45s), and the molten steel flows through the tapping trough and enters the ladle. In addition to diversion of the molten steel, the tapping trough also prevents the molten steel from dispersing and protects the molten steel from secondary oxidation.
The oxidation period of ordinary power electric arc furnace steelmaking usually refers to the process stage from the dissolution of the charge, sampling and analysis to the completion of the oxidation slag. Some think it started from blowing oxygen or adding ore to decarbonize.
The operation of adding raw materials such as molten iron or scrap steel to the electric furnace is the first step of the electric furnace steelmaking operation. The operation of adjusting the slag composition, alkalinity, viscosity and reaction ability in the production of steel and iron.