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

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

From Time Magazine Archive

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

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

From Time Magazine Archive

In what is called the "open-hearth" process, pig iron, scrap iron, and ore are melted together with whatever other substances may be needed to make the particular kind of steel desired.

From Diggers in the Earth by Tappan, Eva March