| 21. | Calcium carbide production requires extremely high temperatures, ~ 2000 �C, necessitating the use of an electric arc furnace.
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| 22. | Graphite electrodes are rods used in what are known as electric arc furnaces, which help melt scrap steel.
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| 23. | Ferroalloys are produced generally by two methods : in a blast furnace or in an electric arc furnace.
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| 24. | Virtually all mini-mills employ electric arc furnaces, and mini mills are the fastest-growing part of the steel industry.
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| 25. | The invention of the electric arc furnace probably began when Humphry Davy discovered the carbon arc in 1800.
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| 26. | The steel production moved from produced from iron ore with blast furnaces to electric arc furnaces using recycled steel.
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| 27. | It includes a blast furnace, the only one in Peru, and several electric arc furnaces that produce steel sponges.
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| 28. | Electric arc furnace steelmaking is the manufacture of steel from scrap or direct reduced iron melted by electric arcs.
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| 29. | Hylsamex also will finish adding an electric arc furnace to its plant in the central Mexican state of Puebla.
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| 30. | Today, electric arc furnaces ( EAF ) are a common method of reprocessing scrap metal to create new steel.
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