open-hearth process

noun

1. a process of steelmaking in which the charge is laid in a furnace open-hearth furnace on a shallow hearth and heated directly by burning gas as well as radiatively by the furnace walls.

open-hearth process

noun

1. a process for making steel using an open-hearth furnace

Word History and Origins

Origin of open-hearth process¹

First recorded in 1885–90

Example Sentences

Bessemer's relation to the open-hearth process was very much like Kelly's to the Bessemer process....

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Even paper-bagging does not quite match the open-hearth process, though there is the same secret of superiority, namely, cooking things in their own essence by the agency of hot air.

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These steels are manufactured very largely by the open-hearth process, although chromium steels are also a crucible product.

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Contemporaneous with his development of the open-hearth process, William Siemens introduced the rotary furnace for producing wrought-iron direct from the ore without the need of puddling.

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