Device used to heat, melt, or otherwise process metals
Industrial furnace from 1907.
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.
One important furnace application, especially in iron and steel production, is smelting, where metal ores are reduced under high heat to separate the metal content from mineral gangue. The heat energy to fuel a furnace may be supplied directly by fuel combustion or by electricity. Different processes and the unique properties of specific metals and ores have led to many different furnace types.[1]
^D, C. H. (1923-11-24). "Metallurgical Furnaces". Nature. 112 (2821): 755–756. doi:10.1038/112755a0. ISSN 1476-4687. S2CID 28751324.
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