① Ferrosilicon Nitride (FeSiN) yog dab tsi thiab vim li cas nws tseem ceeb hauv daim ntawv thov refractory?
Ferrosilicon Nitride (FeSiN) yog siab-kev ua tau zoo sib xyaw refractory raw khoom dav siv nyob rau hauv niaj hnub steelmaking systems, tshwj xeeb tshaj yog nyob rau hauv blast furnace taphole av nplaum, khiav, thiab siab -kub Al₂O₃-SiC{3}}C refractory formulation Hauv Kaus Lim Kauslim POSCO-txog refractory mov saw,ruaj khov nitrogen-cov ntsiab lus FeSiNtau dhau los ua qhov tshwj xeeb tseem ceeb vim tias nws ncaj qha txiav txim siab slag kuj stability, thermal shock tus cwj pwm, thiab ntev - lub sij hawm nyob rau hauv lub durability nyob rau hauv cov huab cua steelmaking tej yam kev mob.
Tsis zoo li cov pa ferrosilicon-raws li cov khoom siv ntxiv, FeSiN ua haujlwm tsis yog los ntawm silicon xwb tab sis kuj yog ib qho kev sib txuas ntawm nitrogen theem stabilizer. Yog li ntawd,nitrogen tsis sib xws tsis yog ib qho kev ntsuas thib ob ntxiv lawm - nws yog lub rooj vag khoom hauv siab -Korean refractory source.
② Vim li cas cov nitrogen ruaj khov-cov ntsiab lus FeSiN suav tias yog tus tsav tsheb yuav khoom tseem ceeb hauv POSCO-txog cov txheej txheem kev yuav khoom?
Hauv POSCO-txhim kho cov khoom siv refractory, cov khoom tsim nyog tau tsav los ntawm cov txheej txheem kev ruaj ntseg es tsis yog cov npe ntawm cov khoom. Cov nitrogen ruaj khov-cov ntsiab lus FeSiN ua kom ntseeg tau tias txhua pawg coj tus cwj pwm zoo nyob rau hauv cov xwm txheej ntawm lub qhov cub zoo tib yam, uas yog qhov tseem ceeb rau kev nruam nruam thiab moj tej tawg rauv tapping cycles uas ua hauj lwm nyob rau hauv siab load thiab tsawg downtime kam rau ua.
Thaum cov ntsiab lus nitrogen hloov pauv, kev tsim ntawm hauv -situ Si₃N₄ kev sib koom ua ke yuav tsis sib haum. Qhov no cuam tshuam ncaj qha rau lub microstructure ntawm Al₂O₃-SiC-C refractories, ua rau tsis sib xws, kev sib txuas tsis muaj zog, thiab kev yaig ntxov ntxov hauv slag-cov cheeb tsam sib cuag.
Los ntawm kev xav txog kev yuav khoom, Kaus Lim Kauslim cov neeg tsim khoom lag luam tseem ceeb rau cov neeg muag khoom uas tuaj yeem lavnruj nitrogen deviation tswj, vim hais tias txawm me me fluctuations txhais mus rau variability nyob rau hauv:
taphole av nplaum yaig npaum li cas
slag nkag mus tob
thermal shock cracking cwj pwm
rauv phiaj xwm ntev
Hauv lwm lo lus, FeSiN tsis yog yuav los ua raw khoom ib leeg, tab sis raws li ib tugtxheej txheem stability input khoomnyob rau hauv POSCO-txog refractory systems.
③ Cov kev qhia tshwj xeeb ntawm FeSiN siv hauv steelmaking refractories yog dab tsi?
| Yam khoom | Specification |
|---|---|
| Khoom npe | Ferrosilicon Nitride (FeSiN) |
| Si Content | 45% – 75% |
| Nitrogen (N) | 20% - 30% (kev tswj tau ruaj khov) |
| Fe Cov ntsiab lus | Tshuav |
| Phase Composition | Fe-Si matrix + Si₃N₄ + Si₂N₂O (me) |
| Particle Loj | 0-1mm / 1-3mm / 3-10mm / kev cai |
| Pom Kev Ceev | 2.4-3.1g / cm³ |
| Xim | Tsaus grey / tsaus xim av |
| Melting Cwj Pwm | Tsis yog - melting, ruaj khov refractory theem |
| Txheem Tswjhwm | Sab hauv QC + SGS/thib peb- tog neeg soj ntsuam muaj |
④ FeSiN siv li cas hauv siab -kub steelmaking thiab refractory systems?
Hauv Kaus Lim Kauslim kev lag luam steel ecosystem, tshwj xeeb tshaj yog nyob rau hauv POSCO- txuas blast furnace thiab refractory procurement systems, ruaj khov nitrogen-cov ntsiab lus FeSiN feem ntau yog siv nyob rau hauv siab -xav tau thermal zones qhov twg cov khoom tsis ua hauj lwm tsis tau.
Nyob rau hauv lub moj tej tawg rauv taphole av nplaum systems, FeSiN ua raws li ib tug functional nitrogen pub uas txhawb kev tsim ntawm Si₃N₄ reinforcing tes hauj lwm. Cov tes hauj lwm no txhim kho cov txheej txheem kev ncaj ncees ntawm cov av nplaum lub cev thaum lub sij hawm rov tapping cycles, qhov twg sai thermal cycling thiab molten hlau yaig tshwm sim ib txhij.
Nyob rau hauv Al₂O₃-SiC-C refractory cib siv nyob rau hauv cov neeg khiav dej num thiab torpedo ladles, FeSiN pab txhawb rau kev tswj nitridation cov tshuaj tiv thaiv uas txhim kho slag kuj. Kev ruaj ntseg ntawm cov ntsiab lus nitrogen ua kom ntseeg tau tias kev tsim cov txheej txheem sib txuas tseem tsis sib xws nyob rau hauv cov khoom siv, uas yog qhov tseem ceeb rau kev tswj xyuas cov txheej txheem hnav zoo ib yam hauv kev ua haujlwm ntev.
Nyob rau hauv POSCO-txog kev nruam casting systems, qhov twg downtime tus nqi siab heev, refractory lwm tus neeg yuav tsum tau los xyuas kom meej qhov kev ua tau zoo ntawm kev ua hauj lwm ntev. FeSiN ruaj khov txo cov batch-rau-batch variation nyob rau hauv refractory cwj pwm, yog li txhim kho kev lag luam kev ntseeg siab thiab txo cov zaus thaum muaj xwm ceev.
Tsis tas li ntawd, nyob rau hauv siab -kub steel tiv tauj ib cheeb tsam, FeSiN txhim kho kev tiv thaiv tiv thaiv alkaline slag nkag mus, tshwj xeeb tshaj yog nyob rau hauv fluctuating thermal gradients raug nyob rau hauv Korean integrated steel nroj tsuag.
⑤ Cov qib FeSiN sib txawv li cas hauv kev ua tau zoo thiab kev tsim khoom tsim nyog?
FeSiN Qib A vs Qib B
Qib A muaj kev tswj hwm nruj nitrogen ruaj khov nrog qhov sib txawv me me, ua rau nws tsim nyog rau POSCO- qib blast furnace systems. Qib B tuaj yeem pom qhov sib txawv ntawm nitrogen ntau dua, uas tseem tuaj yeem siv rau hauv cov ntawv thov refractory, tab sis tsis pom zoo rau siab -kawg taphole av nplaum systems yuav tsum tau muaj kev ruaj ntseg ntev.
FeSiN Qib A vs High-N FeSiN Standard Hom
Thaum siab - tus qauv nitrogen FeSiN tsom rau tag nrho cov ntsiab lus nitrogen, Qib A hais txognitrogen sib xws nyob rau hauv batch, uas yog qhov tseem ceeb tshaj rau Kaus Lim Kauslim steelmakers qhov tseem ceeb ntawm cov txheej txheem rov tsim dua tshiab.
Tswj FeSiN vs Pa Ferrosilicon
Cov pa ferrosilicon tsis muaj nitridation functionality thiab tsis tuaj yeem tsim Si₃N₄ network ruaj khov hauv refractory matrices, ua rau nws tsis tsim nyog rau POSCO-qib refractory systems uas yuav tsum muaj kev ruaj ntseg tshuaj.
⑥ FeSiN ntim li cas, xa, thiab muab khoom siv rau kev lag luam?
FeSiN feem ntau yog muab rau hauv cov pob tswj lossis granulated daim ntawv nyob ntawm daim ntawv thov. Standard particle size ranges muaj xws li 0–1 mm nplua rau nplua refractory mixes thiab 1–3 mm / 3–10 mm qib rau taphole av nplaum formulations.
Ntim yog tsim los rau kev lag luam export logistics, feem ntau nyob rau hauv 1 MT jumbo hnab nrog ya raws -cov ntaub ntawv resistant sab hauv los tiv thaiv nitrogen theem degradation thaum thauj thiab cia. Customized ntim cov kev daws teeb meem muaj rau Kaus Lim Kauslim cov nroj tsuag cog khoom xav tau palletized lossis ntim khoom xa tuaj.
Shipping yog teem los ntawm tej hiav txwv freight los yog containerized shipping nyob ntawm qhov kev txiav txim ntim, nrog nruj noo noo thiab oxidation tswj kom muaj nitrogen stability thoob plaws hauv lub mov saw.
⑦ Vim li cas Kaus Lim Kauslim cov neeg tsim khoom muaj cov kev cai nruj rau FeSiN zoo thiab sib xws?
Vim li cas cov ntsiab lus nitrogen ruaj khov FeSiN tseem ceeb rau Korean refractory procurement?
Vim hais tias Korean steelmakers, tshwj xeeb tshaj yog POSCO-txheej txheem systems, soj ntsuam refractory raw cov ntaub ntawv raws li kev khiav hauj lwm sib xws. Cov nitrogen ruaj khov ua kom ntseeg tau tias tsim tau ntawm Si₃N₄ cov txheej txheem sib txuas, uas cuam tshuam ncaj qha rau kev ntseeg tau ntawm lub tshuab hluav taws xob thiab qhov ntev ntawm kev sib tw.
Yuav ua li cas nitrogen stability cuam tshuam refractory kev ua tau zoo sib xws?
Nitrogen tswj cov tshuaj nitridation hauv cov refractory matrices. Thaum nitrogen fluctuates, theem tsim ua tsis sib xws, uas ua rau lub zog tsis sib haum xeeb thiab slag kuj.
Vim li cas POSCO-txog cov saw hlau yuav tsum nruj FeSiN specifications?
POSCO ua haujlwm nyob rau hauv siab -kev ua tau zoo, qis- qauv tsim tawm lub sijhawm. Txhua qhov kev tsis sib haum xeeb tuaj yeem ua rau tapping cuam tshuam lossis ua rau lub tshuab ua kom nrawm nrawm, yog li cov khoom siv yuav tsum tau ua.
Puas muaj nitrogen variation cuam tshuam slag kuj nyob rau hauv refractories?
Yog lawm. Nitrogen variation hloov qhov ceev thiab kev faib tawm ntawm Si₃N₄ theem, uas ncaj qha cuam tshuam rau slag nkag mus tsis kam thiab tus cwj pwm corrosion.
FeSiN zoo li cas raug ntsuas hauv Kauslim kev lag luam steel kev lag luam?
Nws yog ntsuas los ntawm nitrogen stability sib txawv, theem muaj pes tsawg leeg uniformity, particle loj sib xws, thiab kev ua tau zoo validation nyob rau hauv simulated thermal cycling xeem.
Vim li cas cov khoom sib xws yog qhov tseem ceeb hauv kev ua haujlwm hauv Kaus Lim Kauslim?
Vim tias cov tshuab hluav taws xob tawg ua haujlwm tsis tu ncua rau kev sib tw ntev, txhua qhov kev hloov pauv ua rau muaj kev pheej hmoo ntawm kev yaig tsis sib xws thiab tsis tau npaj tseg.
FeSiN txhim kho kev ntseeg tau li cas hauv siab -cov ntawv thov kub?
Nws tsim cov txheej txheem ruaj khov ceramic sib txuas uas txhawb nqa cov qauv refractory nyob rau hauv thermal shock thiab tshuaj tua kab mob.
Dab tsi yog cov kev cai zoo rau FeSiN hauv Kaus Lim Kauslim txoj haujlwm steel?
Tight nitrogen ntau tswj, tsis tshua muaj batch sib txawv, ruaj khov Si₃N₄ muaj peev xwm tsim, thiab kev ua tau zoo hauv cov av nplaum los yog Al₂O₃-SiC-C systems.
Rau kev sab laj, kev pom zoo tshwj xeeb, lossis kev nug ntau ntawm cov nitrogen ruaj khov -cov ntsiab lus FeSiN rau cov ntawv thov refractory:
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