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2. Electric arc furnace - Wikipedia

   en.wikipedia.org/wiki/Electric_arc_furnace

   An electric arc furnace (EAF) is a furnace that heats material by means of an electric arc. Industrial arc furnaces range in size from small units of approximately one-tonne capacity (used in foundries for producing cast iron products) up to about 400-tonne units used for secondary steelmaking. Arc furnaces used in research laboratories and by ...

3. Stassano furnace - Wikipedia

   en.wikipedia.org/wiki/Stassano_furnace

   Between 1900 and 1915 there are three active types of electric arc furnaces in the industrial field: the Stassano indirect arc furnace, the Heroult direct arc furnace with non-conductive soles, and the Girod direct arc furnace with conductive soles. The Heroult furnace is, among the three, the most suitable for large-scale production, so that ...

4. Metallurgical furnace - Wikipedia

   en.wikipedia.org/wiki/Metallurgical_furnace

   Electric arc furnaces (EAFs), which apply current to the metal via electrodes over an electric arc. The Flodin furnace is an early EAF, specially designed to smelt iron from ore through the direct addition of carbon; Electric induction furnaces, which heat the metal through eddy currents, requiring metal mostly free of gangue and corrosion

5. Nucor - Wikipedia

   en.wikipedia.org/wiki/Nucor

   To supply its mills, Nucor uses electric arc furnaces and continuous casting to melt scrap steel as opposed to blast furnaces to melt iron. In 2023, the company produced and sold approximately 18.5 million tons of steel and recycled 18.4 million tons of scrap. [1] None of Nucor's mills are unionized and the corporate culture is opposed to trade ...

6. Direct reduction - Wikipedia

   en.wikipedia.org/wiki/Direct_reduction

   Furnaces can be either non-transferred arc (Plasmasmelt, Plasmared) or transferred arc (ELRED, EPP, SSP, The Toronto System, falling plasma film reactor). All these processes share the electric furnace's advantage of low investment cost, and its disadvantage of using an expensive energy source.

7. Submerged-arc furnace for phosphorus production - Wikipedia

   en.wikipedia.org/wiki/Submerged-arc_furnace_for...

   The Submerged-arc furnace for phosphorus production is a particular sub-type of electric arc furnace used to produce phosphorus and other products. Submerged arc furnaces are mainly used for the production of ferroalloys. The nomenclature submerged means that the furnace's electrodes are buried deep in the furnace burden.