open-hearth furnace


Also found in: Thesaurus, Encyclopedia, Wikipedia.

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
ThesaurusAntonymsRelated WordsSynonymsLegend:
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.
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.
The electric arc furnace facility will replace an obsolete open-hearth furnace steel production.
The launch of the new electric steel melting complex will also allow the Company to give up the obsolete open-hearth furnace method of steel production.
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].
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.