Kev tsim khoom thiab kev tawm tsam

Ferrosiliconyog tsim los ntawm kev txo cov silica los yog xuab zeb nrog coke nyob rau hauv lub xub ntiag ntawm hlau.Tej qhov chaw ntawm hlau yog cov hlau los yog millscale.Ferrosilicons nrog silicon cov ntsiab lus txog li 15% yog tsim nyob rau hauv blast furnaces lined nrog acid hluav taws cib.Ferrosilicons nrog cov ntsiab lus ntau dua silicon yog tsim nyob rau hauv hluav taws xob arc rauv.Cov formulations ib txwm nyob rau hauv kev ua lag luam yog ferrosilicons nrog 15%, 45%, 75%, thiab 90% silicon.Cov seem yog hlau, muaj li ntawm 2% muaj lwm yam xws li txhuas thiab calcium.Ib qho overabundance ntawm silica yog siv los tiv thaiv kev tsim ntawm silicon carbide.Microsilica yog ib qho khoom siv tau zoo.

Ib qho ntxhia perryite zoo ib yam liferrosilicon, nrog nws muaj pes tsawg leeg Fe5Si2.Nyob rau hauv kev sib cuag nrog dej, ferrosilicon yuav maj mam tsim hydrogen.Cov tshuaj tiv thaiv, uas yog nrawm nyob rau hauv lub xub ntiag ntawm lub hauv paus, yog siv rau hydrogen ntau lawm.Lub melting point thiab ntom ntawm ferrosilicon nyob ntawm nws cov ntsiab lus silicon, nrog ob ze-eutectic cheeb tsam, ib qho ze Fe2Si thiab thib ob spanning FeSi2-FeSi3 muaj pes tsawg leeg.

Siv

Ferrosiliconyog siv los ua ib qhov chaw ntawm silicon los txo cov hlau los ntawm lawv cov oxides thiab deoxidize hlau thiab lwm yam ferrous alloys.Qhov no tiv thaiv kev poob ntawm cov pa roj carbon monoxide los ntawm cov hlau molten (hu ua thaiv cov cua sov);ferromanganese, spiegeleisen, calcium silicides, thiab ntau lwm yam khoom siv rau tib lub hom phiaj.Nws tuaj yeem siv los ua lwm yam ferroalloys.Ferrosilicon kuj tseem siv rau kev tsim cov silicon, corrosion-resistant thiab high-temperature-resistant ferrous silicon alloys, thiab silicon steel rau electromotors thiab transformer cores.Hauv kev tsim cov hlau cam khwb cia, ferrosilicon yog siv rau inoculation ntawm cov hlau kom nrawm graphitization.Hauv arc vuam, ferrosilicon tuaj yeem pom hauv qee cov txheej txheem electrode.

Ferrosilicon yog lub hauv paus rau kev tsim khoom ntawm prealloys xws li magnesium ferrosilicon (MgFeSi), siv los tsim cov hlau ductile.MgFeSi muaj 3-42% magnesium thiab me me ntawm cov hlau tsis tshua muaj hauv ntiaj teb.Ferrosilicon kuj tseem yog ib qho tseem ceeb ntxiv rau cam khwb cia hlau rau kev tswj cov ntsiab lus ntawm silicon.

Magnesium ferrosilicon yog cov cuab yeej siv hauv kev tsim cov nodules, uas muab cov hlau nplaum nws cov khoom siv tau yooj yim.Tsis zoo li grey cam khwb cia hlau, uas tsim graphite flakes, ductile hlau muaj graphite nodules, los yog pores, uas ua rau tawg yooj yim dua.

Ferrosilicon kuj tseem siv rau hauv cov txheej txheem Pidgeon los ua magnesium los ntawm dolomite.Kev kho mob ntawm high-silicon ferrosilicon nrog hydrogen chloride yog lub hauv paus ntawm kev lag luam synthesis ntawm trichlorosilane.

Ferrosilicon kuj tseem siv nyob rau hauv qhov sib piv ntawm 3-3.5% hauv kev tsim cov nplooj ntawv rau kev sib nqus ntawm cov hluav taws xob hloov hluav taws xob.