terase tootmisprotsess aluselise- või happelise voodriga martäänahjudes; esimesel juhul (aluseline menetlus) võimalik terase tootmisel töödelda mitmesuguseid lähtematerjale, teisel juhul (happeline menetlus) saadakse aga kvaliteetsem teras (vt martäänahi, happelismenetlus, aluselismenetlus)
process for steel making in a furnace having a dish shaped hearth, while depending on furnace lining material used alternatives of this steel making process are acid process and basic process (see: open-hearth furnace, acid process, basic process)
Hea teada
In such furnaces pig iron and steel scrap are charged to the open hearth and melted by preheated gases with flame temperatures up to 1750 oC. After melting most impurities are in the covering slag.
