open-hearth process

noun

a process of steelmaking in which the charge is laid in a furnace open-hearth furnace on a shallow hearth and heated directly by burning gas as well as radiatively by the furnace walls.

open-hearth process

First recorded in 1885–90

In that period the open hearth process has been substituted on a vast scale for the Bessemer process.

Steel making by the open hearth process is chiefly due to the late Sir William Siemens.

The open-hearth process is favored also because it allows closer control of phosphorus content in the steel.

Open-hearth process of making steel—Siemens-Martin, England, 1856.

To enlarge the scale of operations makes strongly for economy in the open-hearth process as in other high temperature ones.

April 19, 2024tortuous

[tawr-choo-uhs ]

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