Ferromanganese: Ib qho hlau alloy muaj li ntawm manganese thiab hlau. Cov pawg tseem ceeb: cov pa roj carbon ntau ferromanganese (muaj 7% carbon), nruab nrab carbon ferromanganese (muaj 1.0 ~ 1.5% carbon), qis carbon ferromanganese (muaj 0.5% carbon), metallic manganese, iav hlau, silicon-manganese alloy.
Ua Manganese
Hauv steelmaking, nws yog siv los ua deoxidizer thiab alloy additive, thiab yog cov feem ntau siv ferrous alloy. Manganese ore siv rau smelting ferromanganese feem ntau xav tau cov ntsiab lus manganese ntawm 30~40%, manganese-hlau piv ntau dua 7, thiab phosphorus-manganese piv tsawg dua 0.003. Ua ntej smelting, manganese carbonate ore yuav tsum tau roasted thiab cov hmoov ore yuav tsum tau sintered thiab agglomerated. Ores muaj hlau thiab phosphorus feem ntau tsuas yog siv ua ke, los yog manganese-nplua nuj slag nrog tsawg hlau thiab phosphorus tsawg tuaj yeem tsim los ntawm kev xaiv txo. Coke yog siv los ua tus neeg sawv cev txo qis thaum smelting, thiab qee lub chaw tsim khoom kuj tseem siv cov thee lean lossis anthracite. Cov khoom siv raw khoom feem ntau yog txiv qaub, thiab silica feem ntau ntxiv thaum smelting manganese-silicon alloy.
ferro silico manganese
