{"id":47405,"date":"2024-07-15T09:45:43","date_gmt":"2024-07-15T07:45:43","guid":{"rendered":"https:\/\/www.bonomiacciai.it\/forno-elettrico-ad-arco-processi-di-produzione-dellacciaio-speciale\/"},"modified":"2025-05-22T13:10:28","modified_gmt":"2025-05-22T11:10:28","slug":"special-steel-production-processes-the-electric-arc-furnace","status":"publish","type":"post","link":"https:\/\/www.bonomiacciai.it\/en\/special-steel-production-processes-the-electric-arc-furnace\/","title":{"rendered":"Special steel production processes: the Electric Arc Furnace"},"content":{"rendered":"
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The melting of scrap is a crucial phase in the production of special steel. Deutsche Edelstahlwerke (DEW) use the electric arc furnace (EAF) to transform metal scrap into molten steel, a process that ensures precision and quality.<\/p><\/blockquote>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/vc_column_text][vc_empty_space height=”16px”][vc_single_image image=”44656″][\/vc_column][\/vc_row][vc_row][vc_column]

<\/div>[\/vc_column][\/vc_row][vc_row][vc_column width=”1\/2″][vc_custom_heading text=”Types of Electric Arc Furnace” use_theme_fonts=”yes”][vc_empty_space height=”16px”][vc_column_text]There are two main types of electric arc furnaces: alternating current (AC) and direct current (DC). In the AC furnace, three graphite electrodes attached to the lid generate electric discharges that melt the scrap metal. In the DC furnace, a single electrode acts as the cathode while three anodes at the bottom create an electric arc that passes through the scrap, melting it rapidly.<\/p>\n

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\"\"<\/div><\/figure>[\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=”The Melting Process in the Electric Arc Furnace” use_theme_fonts=”yes”][vc_empty_space height=”16px”][vc_column_text]The electric arc furnace uses graphite electrodes to melt scrap, liquefying it in about two hours. During this process, alloying elements can be added to achieve the desired chemical compositions. Since graphite is made of carbon, the carbon content in the molten bath might be high, but this will be adjusted during the secondary metallurgy phases.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=”Protection of the Molten Bath and Tapping” use_theme_fonts=”yes”][vc_empty_space height=”16px”][vc_column_text]\n
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A slag layer composed of silicates, calcium aluminates, and metal oxides is present on the surface of the molten bath. This slag protects the liquid bath from airborne oxygen, preventing unwanted reactions. The melting process concludes with tapping the liquid metal into the ladle, ready for subsequent secondary metallurgy processes.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=”Special Steel Production Processes \u2013 The Electric Arc Furnace: Conclusion.” use_theme_fonts=”yes”][vc_column_text]The use of the electric arc furnace is essential for producing high-quality special steel<\/strong>. This method allows for precise control of the chemical composition and guarantees a final product that meets the required technical specifications. The steel, produced by Deutsche Edelstahlwerke (DEW) foundries, which we represent, reflects high standards of purity and precision. This fundamental phase is just one of many we’ll explore in our journey through the special steel production processes.[\/vc_column_text][vc_empty_space][\/vc_column][\/vc_row][vc_row][vc_column]

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