Ferrosilicon yog cov hlau thiab silicon alloy. Ferrosilicon yog hlau silicon alloy ua los ntawm coke, steel chips thiab quartz (los yog silica) los ntawm hluav taws xob rauv smelting. Vim hais tias silicon thiab oxygen yog ib qho yooj yim rau synthesize silica, ferrosilicon feem ntau yog siv los ua deoxidizer hauv steelmaking. Nyob rau tib lub sijhawm, vim muaj cov cua kub ntau tawm thaum lub sij hawm tsim SiO2, nws kuj tseem muaj txiaj ntsig los txhim kho qhov kub ntawm cov hlau molten thaum deoxidizing. Nyob rau tib lub sijhawm, ferrosilicon kuj tseem tuaj yeem siv los ua cov khoom siv alloying ntxiv, uas yog dav siv hauv cov hlau tsis tshua muaj hlau, lub caij nplooj ntoos hlav steel, cov kabmob hlau, cov hlau tsis muaj cua sov thiab hluav taws xob silicon steel. Ferrosilicon feem ntau yog siv los ua tus neeg sawv cev txo qis hauv ferroalloy ntau lawm thiab kev lag luam tshuaj.
(1) Nws yog siv los ua deoxidizer thiab alloying tus neeg sawv cev hauv kev lag luam steelmaking. Txhawm rau kom tau txais cov hlau uas tsim nyog cov tshuaj muaj pes tsawg leeg thiab ua kom cov hlau zoo, deoxidation yuav tsum tau ua nyob rau theem kawg ntawm steelmaking. Cov tshuaj affinity ntawm silicon thiab oxygen yog zoo heev. Yog li ntawd, ferrosilicon yog ib qho muaj zog deoxidizer rau steelmaking, uas yog siv rau nag lossis daus thiab diffusion deoxidation. Ntxiv qee qhov nyiaj ntawm silicon rau cov hlau tuaj yeem txhim kho lub zog, hardness thiab elasticity ntawm cov hlau. Yog li ntawd, ferrosilicon kuj tseem siv los ua tus neeg sawv cev alloying thaum smelting structural steel (muaj silicon 0.40-1.75 feem pua), cov cuab yeej steel (muaj SiO. 30-1.8%), caij nplooj ntoos hlav steel (muaj SiO. 40-2.8%) thiab silicon steel rau transformer (muaj silicon 2.81-4.8 feem pua ).
(2) Nws yog siv los ua inoculant thiab spheroidizing tus neeg sawv cev 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, thiab muaj kev ua haujlwm zoo tshaj plaws thiab muaj peev xwm zoo dua seismic dua li cov hlau. Hauv particular, cov khoom siv ntawm nodular cam khwb cia hlau yog sib npaug los yog ze rau cov hlau. Ntxiv ib qho nyiaj ntawm ferrosilicon rau cam khwb cia hlau tuaj yeem tiv thaiv kev tsim cov carbide hauv hlau thiab txhawb cov nag lossis daus thiab spheroidization ntawm graphite. Yog li ntawd, ferrosilicon yog ib qho tseem ceeb inoculant (los pab precipitate graphite) thiab spheroidizing tus neeg sawv cev nyob rau hauv zus tau tej cov nodular cam khwb cia hlau.
(3) Siv los txo tus neeg sawv cev hauv ferroalloy ntau lawm. Tsis tsuas yog cov tshuaj affinity ntawm silicon thiab oxygen yog qhov zoo, tab sis kuj muaj cov ntsiab lus carbon ntawm silicon ferrosilicon siab heev. Yog li ntawd, siab silicon ferrosilicon (los yog siliceous alloy) yog ib qho kev txo tus neeg sawv cev hauv kev tsim cov pa roj carbon tsawg ferroalloy hauv kev lag luam ferroalloy.
(4) 75 # ferrosilicon feem ntau yog siv nyob rau hauv high-temperature smelting ntawm hlau magnesium nyob rau hauv tus txheej txheem ntawm magnesium smelting los ntawm Pijiang txoj kev Kev hloov ntawm magnesium nyob rau hauv MgO yuav noj txog 1.2 tons ntawm ferrosilicon rau txhua tuj ntawm hlau magnesium, uas plays ib tug lub luag haujlwm tseem ceeb hauv kev tsim cov hlau magnesium.
(5) Rau lwm lub hom phiaj. Hauv av los yog atomized ferrosilicon hmoov tuaj yeem siv los ua cov theem ncua hauv kev lag luam tau txais txiaj ntsig. Nws tuaj yeem siv los ua cov txheej txheem ntawm electrode hauv kev lag luam electrode. High silicon ferrosilicon tuaj yeem siv los tsim cov khoom siv silicone thiab lwm yam khoom hauv kev lag luam tshuaj.
Ntawm cov kev siv no, kev lag luam steelmaking, kev lag luam foundry thiab ferroalloy kev lag luam yog cov neeg siv ntau tshaj plaws ntawm ferrosilicon. Lawv haus ntau dua 90 feem pua ntawm ferrosilicon. Ntawm ntau hom ferrosilicon, 75 feem pua ferrosilicon yog qhov siv dav tshaj plaws tam sim no. Hauv kev lag luam steelmaking, kwv yees li 3-5kg75 feem pua ferrosilicon tau noj rau txhua 1t ntawm cov hlau tsim.
