open-hearth process

American  

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.

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open-hearth process British  

noun

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

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Etymology

Origin of open-hearth process

First recorded in 1885–90

Example Sentences

The Bessemer process, named for English inventor Henry Bessemer, and the open-hearth process, changed the way the United States produced steel and, in doing so, led the country into a new industrialized age.

From Textbooks • Dec. 30, 2014

Steel and Bethlehem Steel, which had enormous plants devoted to the old open-hearth process, used the new method on any large scale.

From Time Magazine Archive

News is manufactured over editorial cables, while Bessemer Steel may be manufactured by the open-hearth process.

From Time Magazine Archive

Since 1920 steelmaking has had a big swing to the open-hearth process.

From Time Magazine Archive

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

From The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel by Colvin, Fred H. (Fred Herbert)