High carbon 65 ferromanganeserau steel cog casting kev lag luam
Qhov tseeb, tus qauv dav dav rau carbon ferromanganese yog tias nws muaj 75% txog 80% manganese. Txhawm rau hloov mus rau cov khoom siv raw khoom ntawm qib qis manganese ore, qib nruab nrab ntawm cov pa roj carbon ferromanganese qhia cov npe nrog cov ntsiab lus qis manganese (lub cub hluav taws xob ferromanganese muaj ntau dua 65% manganese, thiab blast furnace ferromanganese muaj ntau dua 65% manganese. Ntau tshaj 50% manganese). Yav dhau los, blast furnaces feem ntau yog siv los smelt carbon ferromanganese. Nrog rau txoj kev loj hlob ntawm kev lag luam hluav taws xob hluav taws xob, kev siv hluav taws xob hauv hluav taws xob tau maj mam nce.
Muaj ob hom kev txo smelting ntawm ferromanganese: flux method (tseem hu ua low manganese slag method) thiab flux-free method (high manganese slag method). Lub hauv paus ntsiab lus ntawm cov txheej txheem flux yog tib yam li cov blast furnace smelting, tshwj tsis yog tias hluav taws xob siv hluav taws xob siv coke rau cua sov.
Los ntawm kev ntxiv cov txiv qaub, lub siab alkalinity slag (CaO / SiO2 yog 1.3 ~ 1.6) yog tsim los txo qhov poob ntawm manganese. Flux-free smelting yam tsis ntxiv cov txiv qaub ua rau muaj cov hlau tsis muaj hlau, phosphorus thiab manganese-nplua nuj slag nrog qis alkalinity (CaO/SiO2 tsawg dua 1.{11}}) thiab cov ntsiab lus siab manganese. Txoj kev no muaj tsawg dua slag, uas tuaj yeem txo qis kev siv hluav taws xob, thiab qhov qis slag kub tuaj yeem txo cov evaporation poob ntawm manganese. Nyob rau tib lub sijhawm, cov khoom lag luam manganese-nplua nuj slag (muaj 25-40% manganese) tuaj yeem siv los ua cov khoom siv raw rau smelting manganese-silicon alloys, ua tiav cov txiaj ntsig siab dua. Kev rov qab zoo ntawm manganese (ntau dua 90%).
