open-hearth furnace

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open-hearth furnace

Method of steelmaking, now largely superseded by the basic–oxygen process. It was developed in 1864 in England by German-born William and Friedrich Siemens, and improved by Pierre and Emile Martin in France in the same year. In the furnace, which has a wide, saucer-shaped hearth and a low roof, molten pig iron and scrap are packed into the shallow hearth and heated by overhead gas burners using preheated air.

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1864 Fritz, John furnace materials Siemens, William steel			At the Ford steelmaking plant, obsolete autos were baled one at a time and then fed to an open-hearth furnace. Man of action: Sam Proler, now 90, was instrumental in experimenting ... by Taylor, Brian / Recycling Today The men who ran the steel companies never liked to close a plant; they always wanted to keep a margin of extra capacity to take care of their best customers at the top of the economic cycle--even if that meant keeping open ancient open-hearth furnaces that should have been banked twenty years before. One World, Ready or Not: The Manic Logic of Global Capital by Ignatius, David / Washington Monthly 1857 - Regenerative open-hearth furnace is developed. Timeline of casting technology by Kotzin, Ezra L. / Modern Casting			op. cit. Op. posth. Opa-Locka opah opal opaque Oparin, Alexandr Ivanovich OPEC Opelika Opelousas open open cluster Open eBook Open Group open notes open punctuation open question open shop Open Software Foundation open source open string open systems Open Systems Interconnection Open, the open-door policy open-hearth furnace opencast mining OpenGL Opequon Creek, Battle of opera opéra bouffe opera buffa opéra comique Opera North Opera Northern Ireland opera seria opera-ballet operating profit operating system operation operational amplifier operculum operetta Opernball, Der operon ophicleide Ophiuchus Ophiuroidea ophthalmia neonatorum ophthalmology Ophüls, Max			open-flow test open-flow well open-frame girder Open-front furnace open-fuse cutout open-graded aggregate Open-Graded Drainage Layer Open-Graded Friction Course Open-Graded Surface Course open-grain open-grained open-grained Open-handed Open-handed open-handedly open-handedly open-handedness open-handedness Open-headed open-heart open-heart open-heart open-heart open-heart open-heart open-heart surgery open-heart surgery Open-hearted open-heartedness open-hearth open-hearth furnace open-hearth process open-hearth process open-hearth process open-hearth process open-hearth processes open-hearth processes Open-Hearth Production Open-hearth steel Open-high-low-close chart open-hole completion Open-label study Open-label trial Open-Line Garden Show open-link fuse Open-List Proportional Representation Open-Loop Carrier Synchronizer Open-Loop Control open-loop control system Open-loop controller Open-Loop Feedback Control Open-Loop Onset Point Open-Loop Power Control Open-Loop Power Control Error Open-Loop Rate Control Open-Loop Resonator Open-Loop Resonator Filter Open-Loop Time Division Multiple Access Open-Loop Tracking Complex

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