open-hearth

• Adjectif désuet utilisé principalement dans un contexte historique ou industriel, décrivant ce qui est lié au procédé de fabrication de l'acier au foyer ouvert (four Martin).

An obsolete adjective primarily used in historical or industrial contexts, describing something related to the open-hearth process of steelmaking.

1. Relating to open-hearth processC1formaltechnical

   Of or relating to a method of steelmaking using an open-hearth furnace, where the charge is melted and refined on a shallow hearth.

   à sole ouverte (procédé)

   • The open-hearth process was a major advancement in steel production.
   • Open-hearth steel is known for its high quality and consistency.
   • Many older steel plants used open-hearth furnaces before the adoption of basic oxygen methods.