Kev siv tseem ceeb ntawm ferrosilicon
Ferrosilicon Main siv ferrosilicon
Ferrosilicon yog ferroalloy silicide.
Ferrosilicon, ferroalloy, silicide, nrog yog ferroalloy silicide.
Ferrosilicon, ferroalloy, silicide, nrog 15-90 feem pua silicon ntsiab lus. Cov tsos yog grey-dawb nrog npuas qhov zoo granular khoom hais, ntau ntau yam, raws li cov ntsiab lus silicon, xws li FeSi90 (muaj 87 feem pua ~ 95 feem pua Si), FeSi75 (muaj 72 feem pua ~ 80 feem pua Si), FeSi65 (muaj 63 feem pua ~ 68 feem pua), FeSi45 (muaj 40 feem pua ~ 47 feem pua Si), FeSi15Chemicalbook (muaj 14 feem pua ~ 20 feem pua Si), thiab lwm yam. 14 feem pua rau 20 feem pua Si), thiab lwm yam impurities xws li Al, Ca, S, P, C, Mn, Cr, thiab lwm yam yog ntxiv rau cov ntawv thov sib txawv. Silicon thiab hlau daim ntawv Fe3Si, Fe5Si3, FeSi, FeSi2 thiab lwm yam tebchaw. 75 ferrosilicon (FeSi75) melting kub ntau ntawm 1300 ~ 1330 degree, 45 ferrosilicon (FeSi45) melting kub ntau ntawm 1250 ~ 1360 degree.
Kev siv ferrosilicon
1, silicon cov ntsiab lus nyob rau hauv thaj tsam ntawm 8.0 feem pua rau 95%. silicon; muaj li ntawm 75 feem pua silicon ferro-silicon feem ntau siv rau cam khwb cia hlau yug me nyuam tus neeg saib xyuas thiab inking tus neeg saib xyuas, steelmaking deoxidizer thiab silicon cov ntaub ntawv; silicon thiab oxygen ntawm cov tshuaj affinity yog heev Chemicalbook yooj yim synthesized rau hauv silicon dioxide, yog li Ferrosilicon feem ntau siv steelmaking ua ib tug deoxidizer ( nag lossis daus deoxidation thiab diffusion deoxidation ). Nyob rau tib lub sijhawm, ferrosilicon kuj tuaj yeem siv los ua cov khoom sib txuas ntxiv tus neeg sawv cev, dav siv hauv cov hlau tsis tshua muaj hlau, lub caij nplooj ntoos hlav steel, cov kabmob steel, cov hlau tsis muaj cua sov thiab hluav taws xob silicon steel, ferrosilicon hauv kev tsim cov ferroalloys thiab tshuaj lom neeg. kev lag luam, feem ntau siv los ua tus neeg sawv cev txo qis.
2, tshwj tsis yog rau boiling steel thiab semi-sedimented steel, cov ntsiab lus ntawm silicon nyob rau hauv steel yuav tsum tsis txhob tsawg tshaj li 0.10 feem pua. Silicon tsis tsim carbides hauv steel, tab sis tam sim no nyob rau hauv cov khoom tov hauv ferrite thiab austenite. Silicon txhim kho lub zog ntawm cov khoom siv tshuaj hauv steel Chemicalbook thiab lub luag haujlwm ntawm kev ua haujlwm txias deformation hardening tus nqi yog qhov muaj zog heev, tab sis txo qhov toughness thiab plasticity ntawm steel; Qhov cuam tshuam ntawm steel hardenability nruab nrab, tab sis tuaj yeem txhim kho tempering stability ntawm steel thiab oxidation tsis kam, yog li ferrosilicon hauv steelmaking kev lag luam siv los ua tus neeg sawv cev alloying.
3, Ferrosilicon, uas muaj nyob ib ncig ntawm 90 feem pua silicon, feem ntau yog siv los tsim cov hlau tsis tshua muaj hlau thiab tseem siv los tsim cov silicones thiab cov ntxhia silicic acid activators; crystalline silicon yog siv nyob rau hauv zus tau tej cov tsis-hlau-raws li alloys thiab high-purity alloys, thiab kuj yog ib qho tseem ceeb raw khoom rau lub electronics kev lag luam. Silicon kuj muaj cov khoom xws li kev ua haujlwm siab dua, thermal conductivity tsis zoo thiab muaj zog sib nqus conductivity. Ib qho nyiaj ntawm silicon hauv steel tuaj yeem txhim kho permeability ntawm steel Chemicalbook, txo hysteresis poob thiab txo eddy tam sim no poob. Cov hlau hluav taws xob muaj 2 feem pua rau 3 feem pua Si, tab sis yuav tsum muaj cov ntsiab lus titanium thiab boron tsawg. Cam khwb cia hlau nrog silicon tuaj yeem tiv thaiv kev tsim cov carbide, txhawm rau txhawb cov nag lossis daus ntawm graphite thiab spheroidization, magnesium hlau silica yog ib qho siv spheroidizing tus neeg sawv cev. Ferrosilicon muaj barium, zirconium, strontium, bismuth, manganese, tsis tshua muaj ntiaj teb, thiab lwm yam, siv los ua inoculants hauv kev tsim cov hlau cam khwb cia.
4, High ferrosilicon yog tus neeg sawv cev txo qis rau kev tsim cov pa roj carbon tsawg ferroalloys hauv kev lag luam ferroalloy. Ferrosilicon hmoov muaj txog 15 feem pua silicon (particle loj<0.2mm) is="" used="" as="" a="" weight="" enhancer="" in="" heavy="" media="">
