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  2. Open-hearth furnace - Wikipedia

    en.wikipedia.org/wiki/Open-hearth_furnace

    Open hearth furnace workers at the Zaporizhstal steel mill in Ukraine taking a steel sample, c. 2012 Tapping open-hearth furnace, VEB Rohrkombinat Riesa, East Germany, 1982. An open-hearth furnace or open hearth furnace is any of several kinds of industrial furnace in which excess carbon and other impurities are burnt out of pig iron to produce ...

  3. AJAX furnace - Wikipedia

    en.wikipedia.org/wiki/AJAX_furnace

    By 1962 five of the six open hearth furnaces at the plant had been converted. [1] Conversion time of the open hearths to the oxygen-based process was around 28 days on average, with a stated capital cost of £180,000 each. [4] In 1966 the Appleby-Frodingham steelworks decided to replace the AJAX production with Linz-Donawitz (LD) converters. [3]

  4. Pierre-Émile Martin - Wikipedia

    en.wikipedia.org/wiki/Pierre-Émile_Martin

    Siemens-Martin open hearth furnace. The process of refining steel in a hearth, as developed by Pierre-Émile Martin, consists of smelting a mixture of cast iron and scrap or ore, then refining it by decarburization, desulfurization and dephosphorization. This method makes it possible to produce fine and alloy steels by adding noble elements.

  5. Ministry of Natural Resources and Environment (Vietnam)

    en.wikipedia.org/wiki/Ministry_of_Natural...

    The Ministry of Natural Resources and Environment (MONRE, Vietnamese: Bộ Tài nguyên và Môi trường) is a government ministry in Vietnam responsible for: land, water resources; mineral resources, geology; environment; hydrometeorology; climate change; surveying and mapping; management of the islands and the sea.

  6. Open hearth furnaces - Wikipedia

    en.wikipedia.org/?title=Open_hearth_furnaces&...

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  7. Round Oak Steelworks - Wikipedia

    en.wikipedia.org/wiki/Round_Oak_Steelworks

    In 1927, it was reported that the equipment at the plant included a 90-ton tilting furnace, two 50-ton and three 40-ton fixed open-hearth furnaces, in addition to a 30-inch cogging mill and a 28-inch finishing mill. [9] The company's name was changed to Round Oak Steel Works Limited on 14 December 1936. [10]

  8. Park Gate Iron and Steel Company - Wikipedia

    en.wikipedia.org/wiki/Park_Gate_Iron_and_Steel...

    The plant then included two mechanically-charged blast furnaces feeding 10 open hearth steel making furnaces which, in turn, fed two primary mills for rolling blooms and billets and six finishing mills rolling a wide range of blooms, billets, slabs, sections, bars and strip. The Roundwood site had an 11" continuous bar mill and a narrow hot ...

  9. Talk:Open-hearth furnace - Wikipedia

    en.wikipedia.org/wiki/Talk:Open-hearth_furnace

    The Seimens furnace is also known as an open hearth furnace in Australia. Not quite sure where the material on the Catalan forge belongs, but probably under open hearth furnace as well, it seems to be a predecessor of the Seimens process. Andrewa 18:45, 7 October 2005 (UTC)