Taw qhia
Ferrosilicon 75 (FeSi75) yog ib qho ntawm cov khoom siv dav siv hauv cov nroj tsuag steel thiab cov chaw tsim khoom. Ntau tus neeg yuav khoom paub tias nws yog deoxidizer, tab sis nws lub luag haujlwm tau mus deb tshaj qhov yooj yim "tshem tawm oxygen." Hauv qab no yog ob peb nqe lus nug uas cov neeg siv txawv teb chaws feem ntau tsa thaum sim nkag siab tias FeSi75 ua haujlwm li cas hauv kev tsim khoom tiag.
Kev lag luam Q&A: Ferrosilicon 75 siv li cas hauv Steelmaking thiab Foundries?
Q1: Dab tsi raws nraim FeSi75 ua thaum lub sij hawm steelmaking?
Thawj thiab tseem ceeb tshaj plaws ua haujlwm ntawm FeSi75 yogdeoxidation. Thaum cov hlau molten muaj cov pa oxygen, nws tsim cov oxides tsis xav tau uas ua rau cov khoom tsis muaj zog thiab ua rau muaj teeb meem. FeSi75 reacts sai nrog oxygen thiab pab ntxuav cov hlau.
Piv nrog rau qis dua -qib alloys, FeSi75 reacts zoo dua, ua kom muaj tsawg dua thiab txhim kho steel zoo.
Dhau li ntawm deoxidation, FeSi75 kuj txhawb nqatxhim kho alloy muaj pes tsawg leeg. Silicon ntxiv dag zog rau cov hlau thiab txhim kho cov khoom xws li elasticity, hardness, thiab tiv thaiv oxidation. Qhov no ua rau FeSi75 yog ib qho tseem ceeb ntxiv rau cov qib steel uas xav tau kev ua haujlwm ruaj khov.
Q2: Vim li cas cov foundries tseem vam khom rau FeSi75?
Hauv kev ua haujlwm casting, FeSi75 plays lub luag haujlwm sib txawv me ntsis tab sis tseem ceeb sib npaug. Silicon txhim kho fluidity nyob rau hauv molten hlau, ua cov khoom cam khwb cia ntau smoothly nyob rau hauv pwm. Nws kuj cuam tshuam rau cov qauv ntawm cov hlau cam khwb cia-tshwj xeeb tshaj yog nyob rau hauv cam khwb cia hlau- qhov chaw ntxiv ntawm silicon pab tswj kev tsim graphite.
Nyob rau hauv luv luv, foundries siv FeSi75 tsuas yog ua kom tiav:
Zoo pwm filling
Ntau ruaj khov casting qauv
Txhim kho cov khoom siv kho tshuab
Txo qhov tshwm sim ntawm qhov tsis xws luag casting
Txawm tias me me ntawm cov ntsiab lus ntawm silicon tuaj yeem cuam tshuam cov txiaj ntsig ntawm cov khoom cam khwb cia, yog li FeSi75 yog suav tias yog ib qho kev txhim khu kev qha thiab kev kwv yees ntxiv.
Q3: Vim li cas FeSi75 nyiam dua FeSi72 hauv qee qib steel?
Steel mills uas tsim tshwj xeeb hlau, hlau alloy, los yog hlau nrog nruj impurity tswj feem ntau xaiv FeSi75 vim nwssiab dua silicon rov qabthiabnruj impurity txwv.
Qhov sib txawv ntawm ob peb feem pua ntawm cov ntsiab lus ntawm silicon tej zaum yuav zoo li me me, tab sis hauv cov txheej txheem loj -, nws tuaj yeem cuam tshuam qhov sib xws thiab kev ua haujlwm kawg.
Qee cov qib steel, tshwj xeeb tshaj yog cov uas xav tau lub zog siab lossis cov khoom siv huv huv, tau txais txiaj ntsig los ntawm cov txiaj ntsig ruaj khov dua los ntawm FeSi75. Qhov no yog vim li cas mills ua tau siab dua -qib steel feem ntau ua FeSi75 lawv tus qauv xaiv.
Q4: Yuav ua li cas cov nroj tsuag feem ntau ntxiv FeSi75 thaum lub sij hawm tsim khoom?
Txoj kev sib ntxiv sib txawv raws li cov khoom siv thiab cov txheej txheem tsim, tab sis cov kev coj ua muaj xws li:
Ntxiv FeSi75 hauv batchthaum tapping
Siv zoo -loj FeSi75kom ceev melting thiab cov tshuaj tiv thaiv
Ntxiv rau hauv lub ladlekom zoo - kho cov ntsiab lus silicon
Siv cov nplej sib txawvnyob ntawm qhov cub hom
Cov qoob loo me me (xws li 0-3mm lossis 1-5mm) feem ntau yog siv hauv kev nruam nruam lossis kev ua kom zoo dua qub vim tias lawv yaj sai. Qhov loj dua (10-50mm lossis 10-100mm) yog qhov zoo dua rau kev ua haujlwm tawg rau lub cub tawg lossis hluav taws xob arc rauv.
Qhov tseem ceeb yog ua kom tiav ib qho kev faib tawm thiab kev kwv yees silicon rov qab.
Q5: Dab tsi yog cov txiaj ntsig tseem ceeb ntawm kev siv FeSi75 es tsis txhob siv lwm cov deoxidizers?
Thaum muaj ntau cov ntaub ntawv deoxidizing, FeSi75 yog nrov vim nws tuaj yeem ua tau ntau yam haujlwm ib zaug:
Muaj zog deoxidation- tshem tawm cov pa oxygen zoo
Silicon alloying- txhim kho steel kev ua tau zoo
Cov txiaj ntsig ruaj khov- zoo sib xws melting thiab kwv yees rov qab
Nqi efficiency- muaj kev ua tau zoo ntawm tus nqi
Muaj dav- cov saw hlau rau FeSi75 yog qhov paub tab thiab ruaj khov
Vim tias kev sib xyaw ua ke no, ntau cov nroj tsuag steel xav txog FeSi75 cov khoom "core" hauv lawv cov khoom txhua hnub.
Hais txog peb cov khoom
Peb muabFeSi 75rau steel mills thiab foundries nyob rau hauv txawv cheeb tsam, thiab feem ntau cov neeg muas zaub mob siab rau stability -ob leeg nyob rau hauv silicon cov ntsiab lus thiab impurity theem. Peb cov khoom siv feem ntau tuaj nrog cov qoob loo loj thiab txhim khu kev qha tshuaj muaj pes tsawg leeg, uas yuav pab txo qis kev hloov pauv thaum lub sijhawm tsim khoom. Yog tias koj tab tom kuaj xyuas tus nqi FOB tam sim no, qhov ntau thiab tsawg, lossis qhov kev xaiv zoo tshaj plaws rau koj qib steel tshwj xeeb, koj tuaj yeem qhia rau peb paub. Peb ib txwm zoo siab los qhia cov ntaub ntawv tsis ntev los no thiab pab koj xaiv cov qib kom ntseeg siab.
Tau txais ib nqe lus tam sim no
