Ferrosilicon yog dav siv nyob rau hauv steelmaking muab silicon rau deoxidation thiab alloy hloov. Kab lus no piav qhia txog yuav ua li cas FeSi reacts nrog cov pa yaj hauv cov hlau molten, dab tsi cuam tshuam rau nws qhov kev ua tau zoo, yuav ua li cas FeSi75 thiab FeSi72 txawv ntawm kev siv, thiab dab tsi yuav tsum tau kuaj xyuas thaum xaiv ferrosilicon rau cov txheej txheem steelmaking.
Teb ceev
Ferrosilicon yog siv hauv steelmaking ua ob qho tib si deoxidizing alloy thiab ib qhov chaw ntawm silicon.Tom qab FeSi ntxiv rau molten steel, silicon nkag mus rau hauv da dej thiab reacts nrog yaj oxygen, pab txo cov pa oxygen thaum tsim silicon - muaj cov khoom oxide.
Qhov tshwm sim tsis yog nyob ntawm qib FeSi ib leeg. Silicon cov ntsiab lus, impurity txwv, ntxiv sij hawm, molten-steel kub, da dej sib tov, slag tej yam kev mob thiab particle loj tuaj yeem cuam tshuam li cas cov alloy coj hauv kev tsim khoom tiag tiag.
Vim li no, FeSi75 yuav tsum tsis txhob cia li suav hais tias yog ib qho deoxidizer zoo dua li FeSi72 tsuas yog vim nws muaj ntau silicon. Qib raug yog nyob ntawm qhov yuav tsum tau ua silicon input, kawg steel chemistry thiab ua tiav FeSi specification.
Vim li cas Deoxidation xav tau hauv Steelmaking?
Oxygen koom nrog thoob plaws hauv kev tsim steel, tshwj xeeb tshaj yog thaum lub sij hawm oxidation thiab refining theem. Ua ntej casting thiab qhov kawg alloy hloov, cov qib oxygen yaj yuav tsum tau tswj raws li qib steel thiab refining txoj kev.
Cov ntsiab lus deoxidizing tau ntxiv vim tias lawv tuaj yeem hnov mob nrog cov pa oxygen hauv cov hlau molten thiab tsim cov khoom oxide.
Yog li ntawd, deoxidation yuav tsum muaj ob txoj haujlwm:
- txo cov pa oxygen hauv cov hlau molten,
- thiab tswj kev tsim, kev loj hlob thiab tshem tawm ntawm qhov tshwm sim uas tsis yog -hlau inclusions.
Chemically khi oxygen tsis yog qhov kawg ntawm cov txheej txheem. Cov khoom oxide tsim thaum lub sij hawm deoxidation kuj yuav tsum tau muab tshem tawm, absorbed los ntawm slag los yog lwm yam tswj kom lawv tsis nyob twj ywm nyob rau hauv lub kawg hlau nyob rau hauv ib tug undesirable daim ntawv los yog ntau npaum li cas.
Yuav ua li cas Ferrosilicon Deoxidize Molten Steel?
Ferrosilicon tsis tshem cov pa oxygen yooj yim los ntawm kev nkag mus rau hauv lub qhov cub ua cov pob khoom. Lub alloy yuav tsum xub nkag mus rau hauv thiab ua assimilated rau hauv cov hlau molten kom silicon tuaj yeem koom nrog cov tshuaj tiv thaiv deoxidation.
FeSi nkag mus rau Molten Steel
Ferrosilicon tej zaum yuav raug qhia los ntawm cov khoom sib ntxiv los yog lwm txoj kev tswj kev them nyiaj nyob ntawm cov nroj tsuag thiab kev ua kom zoo dua qub.
Nyob rau theem no, qhov chaw ntxiv, qhov loj me, da dej txav thiab tus nqi ntawm cov hlau ntxiv cuam tshuam li cas cov khoom nkag mus thiab tiv tauj cov hlau molten.
Lub FeSi yuav tsum tau muab rhuab thiab faib ua ntej nws cov silicon tuaj yeem pab txhawb rau kev ua dej da dej.
Silicon nkag mus da dej
Raws li ferrosilicon yog assimilated, silicon los ntawm cov hlau yuav yaj hauv cov hlau molten.
Cov silicon ntawd tuaj yeem ua ob txoj haujlwm:
- koom nrog hauv deoxidation,
- thiab pab txhawb cov ntsiab lus ntawm silicon kawg ntawm cov hlau.
Qhov ob lub luag haujlwm no tseem ceeb vim tias FeSi ntxiv tsis tuaj yeem txiav txim siab los ntawm cov pa oxygen ib leeg. Cov qib silicone kawg yuav tsum tau txiav txim siab.
Silicon Reacts nrog Dissolved Oxygen
Qhov yooj yim silicon deoxidation cov tshuaj tiv thaiv tuaj yeem sawv cev hauv cov lus yooj yim steelmaking xws li:
[Si] {{0}[O] → (SiO₂)
Ntawm no,[Si]thiab[O]sawv cev rau yaj silicon thiab oxygen nyob rau hauv cov hlau theem, thaum(SiO₂)sawv cev rau theem oxide.
Qhov kev sib npaug no muaj txiaj ntsig zoo rau kev piav qhia cov txheej txheem yooj yim, tab sis qhov tseeb steelmaking yog qhov nyuaj dua li ib qho tshuaj tiv thaiv. Deoxidation tus cwj pwm nyob ntawm qhov kub thiab txias, steel muaj pes tsawg leeg, silicon thiab oxygen cov dej num, thiab muaj lwm yam deoxidizing ntsiab.
Cov txiaj ntsig suav nrog kuj tseem muaj MnO, Al₂O₃, CaO lossis lwm yam oxides ntau dua li uas muaj nyob hauv cov silica ntshiab ib leeg.
Dab tsi tshwm sim rau cov khoom Deoxidation?
Tom qab cov pa oxygen yog chemically khi rau hauv cov khoom oxide, cov khoom tseem yuav tsum tau tswj thaum lub sij hawm refining.
Nyob ntawm lawv cov muaj pes tsawg leeg, qhov loj me thiab kev ua haujlwm, cov oxide suav nrog tuaj yeem:
- loj hlob los ntawm kev sib tsoo los yog agglomeration,
- ntab mus rau txheej slag,
- yuav absorbed rau hauv lub slag,
- los yog nyob twj ywm hauv cov hlau thiab raug hloov kho ntxiv.
Kev huv huv kawg ntawm cov hlau tsis yog tsuas yog nyob ntawm ntau npaum li cas deoxidizer ntxiv, tab sis kuj tseem nyob ntawm daim ntawv suav nrog thiab ua tau zoo npaum li cas lawv raug tshem tawm lossis hloov kho thaum lub sijhawm ua kom zoo.
Ferrosilicon yog ob qho tib si Deoxidizer thiab tus neeg sawv cev Alloying
Ib qho tseem ceeb ntawm ferrosilicon yog tias deoxidation thiab silicon alloy hloov tuaj yeem tshwm sim thaum sib ntxiv.
Ib feem ntawm cov silicon koom nrog cov pa oxygen- ntsig txog cov tshuaj tiv thaiv, thaum silicon khaws cia hauv cov hlau ua rau cov khoom siv hlau kawg.
| Muaj nuj nqi | Lub luag haujlwm ntawm Ferrosilicon |
|---|---|
| Deoxidation | Cov khoom siv silicon uas koom nrog kev cuam tshuam nrog cov pa oxygen yaj |
| Kev hloov kho Silicon | Ntxiv silicon uas pab txhawb rau qhov kawg steel chemistry |
| Txheej txheem tswj | FeSi ntxiv yuav tsum xav txog ob qho tib si oxygen thiab lub hom phiaj Si kawg |
Qhov no txhais tau hais tias cov lus nug siv tau tsis yog tsuas yog ntau npaum li cas ferrosilicon yuav tsum tau tshem tawm cov pa. Qhov yuav tsum tau FeSi ntxiv yuav tsum tau sib xws nrog qhov kawg silicon specification ntawm cov hlau.
Dab tsi cuam tshuam rau Ferrosilicon Deoxidation Performance?
Qib FeSi tseem ceeb, tab sis nws tsuas yog ib qho sib txawv. Kev ua tau zoo tiag tiag nyob ntawm kev sib cuam tshuam ntawm alloy chemistry thiab steelmaking tej yam kev mob.
FeSi Qib thiab Silicon Cov ntsiab lus
FeSi75 muaj cov nominal silicon ntau dua li FeSi72, txawm hais tias cov tshuaj muaj pes tsawg leeg yog nyob ntawm qhov kev pom zoo yuav khoom.
Rau tib qhov theoretical silicon input, qis dua -silicon FeSi qib feem ntau xav tau cov hlau alloy loj dua li qib siab dua -silicon.
Txawm li cas los xij, qhov no tsis txhais tau tias FeSi75 yuav cia li muab cov silicon rov qab zoo dua, qis dua cov pa oxygen lossis cov hlau huv. Cov txiaj ntsig no kuj yog nyob ntawm cov txheej txheem txheej txheem thiab ua tiav cov chemistry alloy.
Cov impurities hauv Ferrosilicon
Lub npe qib ib leeg tsis piav txog qhov ua tiav alloy.
Nyob ntawm qib steel thiab refining yuav tsum tau, cov khoom xws li cov hauv qab no kuj yuav tsum tau tswj:
- Al,
- Ca,
- Ti,
- C,
- P,
- thiab S.
Cov ntsiab lus no tseem ceeb vim tias kev lag luam ferrosilicon tsis yog tshuaj lom neeg sib npaug ntawm silicon ntshiab. Cov ntsiab lus me me qhia nrog FeSi tuaj yeem cuam tshuam cov hlau chemistry kawg thiab cov khoom sib xyaw ntawm oxide.
Thaum tswj kev suav nrog lossis kev txwv nruj nruj yog qhov tseem ceeb, kev sib piv FeSi tsuas yog los ntawm cov xov tooj ntawm silicon feem pua yog li ntawd tsis txaus.
Molten Steel Temperature
Kub cuam tshuam rau ob qho tib si tshuaj tiv thaiv thiab lub cev assimilation ntawm cov hlau.
Ferrosilicon yuav tsum tau rhuab thiab muab tso rau hauv da dej ua ntej nws cov silicon faib los ntawm cov hlau molten. Nyob rau tib lub sijhawm, deoxidation equilibrium kuj hloov nrog kub thiab steel muaj pes tsawg leeg.
Vim li no, tsis muaj ib qho universal "zoo tshaj plaws FeSi deoxidation kub" uas siv rau txhua qib steel thiab refining txoj kev.
Ntxiv Sijhawm
Lub sijhawm tsim nyog los ntxiv ferrosilicon nyob ntawm qhov kev ua kom zoo dua qub.
Cov nroj tsuag yuav tsum xav txog:
- cov pa oxygen thaum ntxiv FeSi,
- seb lwm cov deoxidizers ntxiv ua ntej lossis tom qab FeSi,
- qhov kawg yuav tsum tau qib silicon,
- lub sijhawm muaj rau kev sib xyaw thiab kev tshem tawm,
- thiab muaj peev xwm ntawm reoxidation.
Lub sijhawm ntxiv yuav tsum yog li ntawd ua raws li qib steel tiag tiag thiab kev ua kom zoo dua qub tsis yog ib txoj cai ruaj khov.
Da dej Mixing and stirring
Thaum FeSi nkag mus rau hauv cov hlau, da dej txav pab faib cov ntsiab lus alloying los ntawm cov kua hlau.
Kev sib xyaw ua ke tuaj yeem cuam tshuam rau silicon faib, da dej homogenization, kev sib cuag ntawm thaj chaw tshuaj tiv thaiv thiab cov yaj ntau, thiab kev txav ntawm cov oxide suav nrog.
Qhov tseeb FeSi kev ua tau zoo yog li nyob ntawm ob qho tib si tshuaj tiv thaiv thiab kev hloov pauv loj hauv cov da dej steel.
Slag Conditions thiab Reoxidation
Deoxidation tshwm sim nyob rau hauv ib tug ua tiav steel -slag- refining system.
Ib qho oxidizing slag tuaj yeem cuam tshuam cov pa oxygen ntawm cov hlau -slag interface, thaum slag nkag los yog lwm txoj kev reoxidation tuaj yeem qhia cov oxide ntxiv tom qab pib deoxidation kauj ruam.
Qhov no yog vim li cas slag mob thiab kev tswj reoxidation yuav tsum tau txiav txim siab ua ke nrog kev xaiv deoxidizer.
Ferrosilicon Particle Loj
Qhov loj me me feem ntau cuam tshuam rau lub cev ntawm FeSi ntxiv, suav nrog kev tuav, them nyiaj, cua sov, kev sib cuag nrog cov hlau molten thiab lub sijhawm assimilation.
Cov khoom me me muab cov cheeb tsam sab nraud ntau dua, thaum cov feem ntau zoo tuaj yeem tsim cov plua plav thiab tuav cov khoom poob. Cov khoom loj tuaj yeem xav tau ntau lub sijhawm thiab tsim nyog rau cua sov thiab assimilation.
Qhov loj me yog li ntawd tseem ceeb, tab sis nws yuav tsum tsis txhob siv ib leeg los kwv yees ib qho kev deoxidation efficiency los yog silicon rov qab.
FeSi75 vs FeSi72 rau Steelmaking Deoxidation
FeSi75 thiab FeSi72 tuaj yeem muab cov khoom silicon thaum lub sij hawm ua steel, tab sis tus lej siab dua tsis tau txhais hais tias ib qib yog universally superior.
| Qhov xwm txheej | FeSi 75 | FeSi72 |
|---|---|---|
| Nominal Si Level | Siab dua | qis |
| Alloy pawg rau tib Theoretical Si Input | Feem ntau qis dua | Feem ntau siab dua |
| Kev xav tau impurity | Yuav tsum tau soj ntsuam los ntawm qhov tseeb specification | Yuav tsum tau soj ntsuam los ntawm qhov tseeb specification |
| Particle Loj | Nyob ntawm cov khoom specification | Nyob ntawm cov khoom specification |
| Automatically Zoo? | Tsis muaj | Tsis muaj |
Yog tias ob qib raug muab piv, xav txog qhov ua tiav tus nqi thiab cov txheej txheem hauv paus es tsis yog tsuas yog Si feem pua lossis yuav tus nqi ib tuj.
Qhov kev txiav txim siab tuaj yeem nyob ntawm qhov yuav tsum tau muaj cov khoom siv silicon, cov ntsiab lus tau txais Al, C / P / S txwv, qhov loj me, tus nqi xa khoom thiab kev xyaum cog ntxiv.
Yog xav paub ntxiv txog kev sib tham txog kev xaiv qib, saib peb phau ntawv qhiaxaiv FeSi75 rau steelmaking.
Ferrosilicon vs Lwm Steelmaking Deoxidizers
Ferrosilicon tsis yog tsuas yog cov khoom siv rau steel deoxidation.
Cov deoxidizers sib txawv qhia cov ntsiab lus sib txawv thiab tsim cov txheej txheem oxide sib txawv, yog li kev xaiv yuav tsum ua raws li qhov kawg steel chemistry thiab lub hom phiaj kho kom zoo.
| Deoxidizer | Lub luag haujlwm tseem ceeb ntawm metallurgical | Lub ntsiab lus xaiv |
|---|---|---|
| Ferrosilicon | Si deoxidation + silicon alloying | Silicon ntau npaum li cas los yog yuav tsum tau qhia? |
| Aluminium | Muaj zog deoxidation thiab Al{0}}tua steel xyaum | Dab tsi yog qib Al thiab cov xwm txheej suav nrog? |
| Silicomanganese | Mn + Si input nrog deoxidation | Puas yog ob qho tib si manganese thiab silicon ntxiv? |
| CaSi / Calcium-Cov Kabmob Ntxiv | Calcium kho nrog silicon input | Puas yog kev kho calcium los yog kev hloov pauv ntxiv? |
Ferrosilicon vs Aluminium
Aluminium feem ntau yog siv rau qhov muaj zog deoxidation thiab Al{0}}tua steel xyaum yuav tsum tau. Nws tsim cov alumina-raws li kev suav nrog uas yuav tsum tau tswj xyuas thaum ua kom zoo.
Ferrosilicon yog qhov tshwj xeeb tshaj yog qhov uas silicon ntxiv yog sib xws nrog lossis xav tau los ntawm cov hlau hlau kawg.
Yog li ntawd, qhov kev sib piv yuav tsum tsis txhob txo qis rau cov khoom uas tshem tawm cov pa ntau dua. Qhov xav tau steel chemistry thiab suav nrog- txoj kev tswj hwm tseem ceeb sib npaug.
Ferrosilicon vs Silicomanganese
Silicomanganese qhia ob qho tib si manganese thiab silicon thaum tseem ua rau deoxidation.
Yog li nws tuaj yeem txiav txim siab thaum Mn thiab Si yuav tsum tau hloov kho, thaum FeSi ncaj qha rau cov xwm txheej uas silicon input yog thawj qhov yuav tsum tau ua alloying.
Ferrosilicon vs Calcium-Bearing Alloys
Calcium-cov kabmob alloys ua haujlwm rau lub hom phiaj metallurgical sib txawv.
Calcium kev kho mob feem ntau yog txuam nrog kev hloov kho tom qab deoxidation, tshwj xeeb yog qhov xwm txheej ntawm oxide inclusions yuav tsum tau kho.
Yog li ntawd, CaSi yuav tsum tsis txhob raug kho raws li qhov muaj zog lossis tsis muaj zog ntawm FeSi.
Tsis muaj universally zoo tshaj steelmaking deoxidizer.Cov khoom tsim nyog lossis kev sib xyaw ua ke yog nyob ntawm qib steel, lub hom phiaj chemistry, refining sequence thiab suav nrog - tswj cov cai.
Puas Ferrosilicon Particle Loj cuam tshuam rau Deoxidation?
Yog, tab sis feem ntau vim hais tias qhov loj me cuam tshuam rau txoj kev ferrosilicon yog tuav, them, rhuab thiab assimilated rau hauv cov hlau molten.
Rau tib qhov loj ntawm cov khoom, cov khoom me me muab ntau dua tag nrho cov chaw sab nrauv. Qhov no tuaj yeem txhawb nqa cua sov sai dua thiab tiv tauj nrog cov hlau molten.
Txawm li cas los xij, txo qhov loj me me kuj tsim kev lag luam tawm tswv yim -offs.
Zoo heev FeSi tuaj yeem nce:
- hmoov av tiam,
- hloov poob,
- thiab kev sib cais thaum tuav.
Cov khoom siv ntxhib heev tuaj yeem xav tau kom tsim nyog them qhib, kev sib cuag da dej txaus thiab sijhawm txaus rau cua sov thiab kev sib xyaw ua ke.
Yog li nws tsis yog qhov tseeb los txiav txim siab tias me me FeSi ib txwm muab cov deoxidation zoo dua. Particle- xaiv qhov loj me yuav tsum ua raws li qhov kev them nyiaj thiab cov kev ua haujlwm tiag tiag.
Dab tsi yuav tsum Steelmakers kuaj thaum xaiv Ferrosilicon?
Ib qho kev qhia tshwj xeeb ntawm ferrosilicon yuav tsum muaj ntau tshaj li lub npe qib.
| Parameter | Vim Li Cas Nws Tseem Ceeb |
|---|---|
| FeSi Qib | Qhia txog qib silicon dav dav |
| Tiag Si Content | Txiav txim siab silicon input los ntawm alloy |
| Al Cov ntsiab lus | Tej zaum yuav cuam tshuam rau steel chemistry thiab suav nrog kev xyaum |
| C Cov ntsiab lus | Muaj feem cuam tshuam qhov kev txwv cov pa roj carbon monoxide |
| P thiab S | Qhov tseem ceeb impurity txwv rau ntau qib steel |
| Particle Loj | Muaj feem xyuam rau tuav, them thiab assimilation |
| Fine / Oversize | Pab txhais lub cev qhov sib xws |
| Batch Consistency | Txhawb kev rov ua dua alloy - ntxiv kev xyaum |
| Kev soj ntsuam / COA | Pab kom paub meej tias xa khoom chemistry thaum xav tau |
Yog hais tias steel huv huv los yog ib qho kev suav nrog - tswj kev xyaum yog ib qho tseem ceeb, ua tiav FeSi chemistry yuav tsum tau tshuaj xyuas es tsis yog tsom rau qhov feem pua ntawm silicon feem pua.
Koj tuaj yeem sib piv pebmuaj ferro silicon qibthaum kuaj xyuas chemistry, cov khoom daim ntawv thiab particle- loj xaiv rau kev yuav khoom specification.
Yuav Ua Li Cas Xaiv Ferrosilicon rau Deoxidation
Kauj ruam 1: Paub meej tias qhov kawg Steel Chemistry
Pib nrog qhov xav tau muaj pes tsawg leeg ntawm cov hlau tiav.
Tshawb xyuas lub hom phiaj ntawm silicon thiab txiav txim siab seb cov silicon qhia thaum lub sij hawm deoxidation puas haum rau qhov kawg chemistry.
Kauj Ruam 2: Txiav txim siab qhov xav tau Silicon Input
Txheeb xyuas seb silicon yuav tsum tau qhia ntau npaum li cas thaum lub sijhawm ua kom zoo dua qub.
Qhov no tsis tas yuav tsum zoo ib yam li lub hom phiaj ntawm silicon kawg vim tias lub da dej twb muaj silicon thiab ib feem ntawm cov khoom siv ntxiv tuaj yeem koom nrog cov tshuaj tiv thaiv deoxidation.
Kauj ruam 3: Xaiv FeSi Qib
Sib piv FeSi75, FeSi72 lossis lwm qib tsim nyog raws li qhov xav tau ntawm silicon input thiab kev yuav khoom specification.
Tsis txhob xaiv cov qib tsuas yog vim nws muaj feem pua silicon siab tshaj.
Kauj Ruam 4: Txheeb xyuas qhov txwv tsis pub dhau
Tshawb xyuas Al, C, P, S thiab lwm yam txwv tsis pub muaj feem cuam tshuam rau qib steel lossis kev ua kom zoo dua qub.
Kauj Ruam 5: Paub meej tias qhov loj me thiab qhov yuav tsum tau them
Xaiv ib qho particle- qhov loj me uas phim lub kaw lus cia, khoom siv thauj khoom, them qhib, ntxiv txoj kev thiab muaj sijhawm assimilation.
Qhov twg lub cev tsis sib xws tseem ceeb, kev nplua nplua thiab kev txwv loj yuav tsum tau txhais.
Kauj Ruam 6: Txheeb xyuas qhov ua tau zoo hauv kev tsim khoom tiag
Theoretical chemistry yog qhov muaj txiaj ntsig zoo rau thawj qhov tshwj xeeb thiab kev suav, tab sis qhov kawg kev ua tau zoo yuav tsum tau soj ntsuam siv cov ntaub ntawv cog qoob loo.
Cov ntaub ntawv tsim tawm ntsig txog yuav suav nrog kev sib ntxiv ntawm cov hlau, qhov kawg ntawm silicon, qhov tseeb rov qab los, cov ntsuas kev huv ntawm steel qhov twg siv tau, thiab batch-rau-batch sib xws.
Tus neeg xa khoom dav dav thov tsis tuaj yeem hloov cov ntaub ntawv txheej txheem los ntawm cov nroj tsuag steel.
Ntsiab Cai
- Ferrosilicon muab cov khoom siv silicon rau ob qho tib si deoxidation thiab alloy hloov kho hauv steelmaking.
- Silicon deoxidation cuam tshuam nrog silicon yaj thiab yaj oxygen hauv cov hlau molten; cov tshuaj tiv thaiv[Si] {{0}[O] → (SiO₂)yog ib tug yooj yim sawv cev ntawm lub hauv paus mechanism.
- FeSi75 tsis yog ib qho kev deoxidizer zoo dua li FeSi72. Kev xaiv qib nyob ntawm qhov yuav tsum tau muaj cov khoom siv silicon, kev txwv tsis pub dhau thiab cov txheej txheem tiag tiag.
- Kub, sijhawm ntxiv, sib tov da dej, slag tej yam kev mob thiab particle loj tuaj yeem cuam tshuam FeSi tus cwj pwm hauv kev tsim khoom.
- Ferrosilicon, aluminium, silicomanganese thiab calcium -cov kabmob ntxiv ua haujlwm rau lub hom phiaj metallurgical sib txawv thiab yuav tsum tsis txhob raug suav nrog txoj cai "zoo tshaj plaws deoxidizer".
FAQ Txog Ferrosilicon Deoxidation
Vim li cas ferrosilicon siv los ua deoxidizer hauv steelmaking?
Ferrosilicon muab cov khoom siv silicon, uas koom nrog kev cuam tshuam nrog cov pa oxygen hauv cov hlau molten. Qhov no yuav pab txo qis cov pa oxygen thaum cov silicon khaws cia tuaj yeem pab txhawb rau qhov kawg steel chemistry.
Yuav ua li cas silicon tshem tawm oxygen los ntawm molten hlau?
Ib qho piv txwv yooj yim yog [Si] + 2[O] → (SiO₂). Hauv kev tsim steel tiag tiag, cov tshuaj tiv thaiv nyob ntawm qhov kub thiab txias, steel muaj pes tsawg leeg thiab cov thermodynamic tej yam kev mob, thiab cov txiaj ntsig tau tuaj yeem muaj ntau yam oxide es tsis yog cov ntshiab silica ib leeg.
Puas yog FeSi75 zoo dua FeSi72 rau deoxidation?
Tsis tau. FeSi75 muaj ntau silicon nyob rau hauv qib nominal, yog li tsawg alloy loj yuav tsum tau rau tib theoretical silicon input. Kev xaiv tiag tiag yuav tsum tau txiav txim siab txog impurity txwv, particle loj, Si kawg lub hom phiaj, tus nqi thiab kev cog qoob loo.
Puas yog ferrosilicon particle loj cuam tshuam rau deoxidation?
Particle loj cuam tshuam rau cua sov, them, tuav thiab assimilation ntawm FeSi. Cov khoom me me muab cov cheeb tsam sab nraud ntau dua, thaum kev nplua ntau dhau tuaj yeem ua rau cov plua plav thiab tuav poob. Cov pob loj loj yuav tsum tau them cov nqi tsim nyog thiab lub sijhawm txaus rau kev sib xyaw ua ke. Particle loj ib leeg tsis txiav txim siab deoxidation efficiency.
Dab tsi yog qhov txawv ntawm ferrosilicon thiab aluminium deoxidation?
Ferrosilicon qhia txog silicon thiab txhawb silicon-raws li deoxidation thaum tseem kho qhov kawg Si chemistry. Aluminium yog siv rau kev ua kom muaj zog deoxidation thiab Al-tua steel xyaum thiab cov ntawv alumina-raws li kev koom ua ke. Qhov kev xaiv tsim nyog nyob ntawm steel chemistry thiab suav nrog- tswj cov cai.
Dab tsi yuav tsum tau kuaj xyuas thaum yuav FeSi rau steelmaking?
Txheeb xyuas qib FeSi, cov ntsiab lus Si tiag, Al, C, P thiab S txwv, qhov loj me, nplua thiab qhov loj me, cov khoom sib xws thiab cov ntaub ntawv tshuaj xyuas yuav tsum tau ua. Cov lus qhia tshwj xeeb yuav tsum phim ob qho tib si steel chemistry kawg thiab cov nroj tsuag qhov kev xyaum ntxiv.
Xav Paub Txog Koj Cov Lus Qhia Ferrosilicon?
Yog tias koj twb muaj steelmaking FeSi specification, xa peb cov qib uas yuav tsum tau, silicon cov ntsiab lus, impurity txwv, particle loj thiab kom muaj nuj nqis rau kev sib piv.
Yog tias koj txiav txim siab nruab nrab ntawm FeSi75 thiab FeSi72, nws yog qhov zoo dua los sib piv cov chemistry thiab cov ntsiab lus ntawm lub cev ntau dua li piv cov npe qib ib leeg. Koj qhov kev yuav khoom tam sim no tuaj yeem siv los ua lub hauv paus rau kev tshuaj xyuas cov qib muaj thiab cov khoom particle- qhov ntau thiab tsawg.
