Kev siv ferrosilicon
1. Siv los ua deoxidizer thiab alloying tus neeg sawv cev hauv kev lag luam steelmaking. Txhawm rau kom tau txais cov tshuaj muaj pes tsawg leeg ntawm cov hlau tsim nyog thiab ua kom cov hlau zoo, nyob rau theem kawg ntawm steelmaking yuav tsum tau deoxidized, cov tshuaj affinity ntawm silicon thiab oxygen yog loj heev, yog li ferrosilicon yog ib qho muaj zog deoxidizer rau nag lossis daus thiab diffusion hauv steelmaking. . Ntxiv qee qhov nyiaj ntawm silicon rau cov hlau tuaj yeem txhim kho lub zog, hardness thiab elasticity ntawm cov hlau, yog li thaum smelting steel qauv (muaj silicon 0.40-1.75%), cov cuab yeej steel (xws li SiO. 30-1.8%), caij nplooj ntoos hlav steel (xws li SiO.40-2.8%) thiab transformer silicon steel (muaj silicon 2.81-4.8%), Ferrosilicon kuj yog siv los ua ib qho alloying tus neeg sawv cev. Nyob rau tib lub sijhawm, kev txhim kho cov duab ntawm kev suav nrog thiab txo cov ntsiab lus ntawm cov khoom siv roj hauv cov hlau molten yog cov cuab yeej tshiab zoo los txhim kho steel zoo, txo nqi thiab txuag hlau. Nws yog tshwj xeeb tshaj yog haum rau nruam casting steel deoxidation yuav tsum tau. Kev xyaum tau ua pov thawj tias ferrosilicon tsis tsuas yog ua tau raws li qhov xav tau ntawm deoxidation ntawm steelmaking, tab sis kuj muaj desulfurization kev ua tau zoo thiab muaj qhov zoo ntawm qhov hnyav piv thiab muaj zog nkag.
Tsis tas li ntawd, nyob rau hauv kev lag luam steelmaking, kev siv cov hmoov ferrosilicon ntawm qhov kub thiab txias tuaj yeem tso tawm ntau cov cua sov, uas feem ntau yog siv los ua ingot cap cua sov tus neeg saib xyuas los txhim kho qhov zoo thiab rov qab los ntawm ingot.
2. Siv los ua inoculant thiab nodulator hauv kev lag luam cam khwb cia hlau. cam khwb cia hlau yog cov khoom siv hlau tseem ceeb hauv kev lag luam niaj hnub no, nws yog pheej yig dua li cov hlau, yooj yim rau yaj thiab smelt, muaj kev ua haujlwm zoo tshaj plaws thiab av qeeg zoo dua li cov hlau. Hauv tshwj xeeb, cov hlau nplaum, nws cov khoom siv kho tshuab ncav cuag lossis mus txog cov khoom siv hluav taws xob ntawm cov hlau. Ntxiv ib qho nyiaj ntawm ferrosilicon rau cam khwb cia hlau tuaj yeem tiv thaiv kev tsim cov carbides hauv hlau thiab txhawb cov nag lossis daus thiab spheroidization ntawm graphite, yog li hauv kev tsim cov hlau, ferrosilicon yog ib qho tseem ceeb inoculant (los pab precipitate graphite) thiab spheroidizing tus neeg sawv cev.
3. Siv los txo tus neeg sawv cev hauv ferroalloy ntau lawm. Tsis tsuas yog cov tshuaj affinity ntawm silicon thiab oxygen yog loj heev, tab sis kuj cov pa roj carbon ntsiab lus ntawm high-silicon hlau silicon yog tsawg heev. Yog li ntawd, high-silicon ferrosilicon (los yog siliceous alloy) yog ib qho kev siv txo tus neeg sawv cev hauv kev lag luam ferroalloy thaum tsim cov pa roj carbon tsawg.
4, 75 # ferrosilicon nyob rau hauv Pijiang txoj kev ntawm magnesium smelting feem ntau yog siv nyob rau hauv lub kub kub smelting txheej txheem ntawm magnesium hlau, lub magnesium nyob rau hauv CaO.MgO yog hloov, txhua zus tau tej cov ib tuj ntawm magnesium hlau kom haus txog 1.2 tons ntawm ferrosilicon, magnesium hlau ntau lawm plays lub luag hauj lwm zoo.
5. Lwm yam kev siv. Cov hmoov nplua los yog atomized ferrosilicon hmoov tuaj yeem siv tau raws li lub sijhawm tshem tawm hauv kev lag luam ntxhia. Nyob rau hauv lub vuam pas nrig manufacturing kev lag luam yuav siv tau raws li welding pas nrig txheej. High silicon hlau silicon yog siv nyob rau hauv kev lag luam tshuaj los ua cov khoom xws li silicone.
Ntawm cov kev siv no, kev lag luam steelmaking, kev lag luam casting thiab kev lag luam ferroalloy yog cov neeg siv ntau tshaj plaws ntawm ferrosilicon. Ua ke, lawv haus ntau tshaj 90% ntawm ferrosilicon. Hauv ntau qib sib txawv ntawm ferrosilicon, feem ntau siv yog 75% ferrosilicon. Hauv kev lag luam steelmaking, kwv yees li 3-5kG 75% ntawm ferrosilicon yog siv rau 1t ntawm steel tsim.
