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  2. Induction furnace - Wikipedia

    en.wikipedia.org/wiki/Induction_furnace

    The advantage of the induction furnace is a clean, energy-efficient and well-controlled melting process, compared to most other means of metal melting. Most modern foundries use this type of furnace, and many iron foundries are replacing cupola furnaces with induction furnaces to melt cast iron, as the former emit much dust and other pollutants ...

  3. Lukens Steel Company - Wikipedia

    en.wikipedia.org/wiki/Lukens_Steel_Company

    A year later a new steel producing facility was built surrounding a 100-ton electric furnace. The Coatesville mill now covered 725 acres (293 ha) and 3,250,000 square feet (302,000 m 2) of building space. Lukens supplied the steel beams used in construction of the World Trade Center in New York. [12]

  4. Electric arc furnace - Wikipedia

    en.wikipedia.org/wiki/Electric_arc_furnace

    Depending on the proportions of steel scrap, DRI and pig iron used, electric arc furnace steelmaking can result in carbon dioxide emissions as low as 0.6 tons CO 2 per ton of steel produced, [12] which is significantly lower than the conventional production route via blast furnaces and the basic oxygen furnace, which produces 2.9 tons CO2 per ...

  5. Metallurgical furnace - Wikipedia

    en.wikipedia.org/wiki/Metallurgical_furnace

    A metallurgical furnace, often simply referred to as a furnace when the context is known, is an industrial furnace used to heat, melt, or otherwise process metals. Furnaces have been a central piece of equipment throughout the history of metallurgy ; processing metals with heat is even its own engineering specialty known as pyrometallurgy .

  6. Steelmaking - Wikipedia

    en.wikipedia.org/wiki/Steelmaking

    Direct-reduced iron can be produced from iron ore as it reacts with atomic hydrogen. Renewable hydrogen allows steelmaking without fossil fuels. Direct reduction occurs at 1,500 °F (820 °C). The iron is infused with carbon (from coal) in an electric arc furnace. Hydrogen electrolysis requires approximately 2600 kWh per ton of steel. Hydrogen ...

  7. Juniata Iron Works - Wikipedia

    en.wikipedia.org/wiki/Juniata_Iron_Works

    The buildings are associated with a historic iron furnace that was first developed on the south side of the Frankstown Branch of the Juniata River. The complex moved to the north side in the late-1840s. The iron works closed in the mid-1870s and the machinery dismantled. [2] It was listed on the National Register of Historic Places in 1990. [1]

  8. Carrie Furnace - Wikipedia

    en.wikipedia.org/wiki/Carrie_Furnace

    Carrie Furnace is a former blast furnace located along the Monongahela River in the Pittsburgh area industrial town of Swissvale, Pennsylvania, and it had formed a part of the Homestead Steel Works. The Carrie Furnaces were built in 1884 and they operated until 1982. During its peak, the site produced 1,000 to 1,250 tons of iron per day. [3]

  9. Furnace (central heating) - Wikipedia

    en.wikipedia.org/wiki/Furnace_(central_heating)

    Modern high-efficiency furnaces can be up to 98% efficient and operate without a chimney, with a typical gas furnace being about 80% efficient. [1] Waste gas and heat are mechanically ventilated through either metal flue pipes or polyvinyl chloride (PVC) pipes that can be vented through the side or roof of the structure.

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