open-hearth process

noun

1. 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

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

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

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg