open-hearth furnace


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open-hearth furnace

n
(Metallurgy) (esp formerly) a steel-making reverbatory furnace in which pig iron and scrap are contained in a shallow hearth and heated by producer gas
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Noun1.open-hearth furnace - a furnace for making steel in which the steel is placed on a shallow hearth and flames of burning gas and hot air play over it
furnace - an enclosed chamber in which heat is produced to heat buildings, destroy refuse, smelt or refine ores, etc.
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References in periodicals archive ?
The regenerative heating process in an open-hearth furnace utilizes the natural thermal mass of paired ceramic brick chambers in order to raise the temperature of the injected hot air.
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The electric arc furnace facility will replace an obsolete open-hearth furnace steel production.
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However, the extensive literature data, relating to the behaviour of gases in open furnaces working by conventional technology (from open-hearth furnace to superpowerful arc furnaces) indicates that the complete interaction of oxidation of carbon in the reduction period of melting is not reflected to a large extent in the process of removal of nitrogen [6,10].
Effect of technological factors on the nitrogen content of steel melted in a superpowerful arc furnace
Basic Oxygen Furnace (BOF)--The updated replacement of the traditional open-hearth furnace, the BOF refines molten iron mixed with steel scrap in a process that can take place in under one hour.
Industry terms: glossary of scrap and metals
1857 - Regenerative open-hearth furnace is developed.
Timeline of casting technology
Basic Oxygen Furnace (BOF) The updated replacement of the traditional open-hearth furnace, the BOF refines molten iron mixed with steel scrap in a process that can take place in less than one hour.
Glossary of ferrous scrap and steel industry terms. (2003 Ferrous Scrap Supplement)

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