Ferro Silicon Nitride hmoov ntim thiab xa khoom li cas?

 

Ferro Silicon Nitride (Si3N4-FeSi) hmoov rau High-Temperature Refractory thiab Steelmaking Applications

Ferro Silicon Nitride (FeSiN) yog cov khoom siv hlau sib xyaw uas tsim los ntawm kev tswj cov nitridation ntawm ferrosilicon. Nws ua ke txo qis peev xwm ntawm silicon, ntxiv dag zog rau cov nyhuv ntawm nitrogen, thiab cov qauv kev ruaj ntseg ntawm hlau-raws li alloys. Nws yog dav siv nyob rau hauv niaj hnub steelmaking thiab refractory systems uas siab thermal kuj, slag corrosion kuj, thiab thermal shock stability yuav tsum tau.

Cov khoom no yog ib qho tseem ceeb tshwj xeeb tshaj yog nyob rau hauv blast furnace tapping systems, torpedo ladles, ladle castables, thiab runner refractories, qhov twg cov pa ferrosilicon los yog alumina -raws li additives tsis tuaj yeem ua tau raws sijhawm ntev - kev ruaj ntseg.

Ferro Silicon Nitride (FeSiN) yog dab tsi thiab nws lub luag haujlwm muaj?

Ferro silicon nitride yog nitrogen-muaj cov hlau tsim thaum ferrosilicon reacts nrog nitrogen nyob rau hauv kev tswj kub thiab cua. Qhov tshwm sim yog ntau- cov khoom siv theem uas muaj Si3N4, Fe, thiab cov seem Si theem.

Nws lub luag haujlwm hauv kev lag luam yog feem ntau raws li kev ua haujlwm refractory. Nws txhim kho oxidation tsis kam, txo slag nkag mus, thiab txhim kho txhua yam muaj zog ntawm qhov kub siab.

 

Cov txheej txheem ntau lawm ntawm Ferro Silicon Nitride Powder

Kev tsim cov FeSiN feem ntau koom nrog cov txheej txheem tswj nitridation:

Kev xaiv cov khoom nyoos: High-purity ferrosilicon (feem ntau 75%–90% Si cov ntsiab lus)

Crushing thiab sizing: Ferrosilicon yog crushed rau hauv kev tswj particle loj

Nitridation cov tshuaj tiv thaiv: raug nitrogen (N2) roj ntawm 1200-1400 degree

Phase transformation: Tsim cov silicon nitride (Si3N4) hauv FeSi matrix

Txias thiab ruaj khov: Tiv thaiv oxidation thiab tswj cov ntsiab lus nitrogen

Sib tsoo: Cov hmoov kawg lossis granular daim ntawv nyob ntawm daim ntawv thov

Ferro Silicon Nitride Qib thiab Cov Txheej Txheem (FeSiN Specification)

 

Cov qib kev lag luam feem ntau yog txhais los ntawm nitrogen thiab silicon cov ntsiab lus sib npaug:

FeSiN-20N: Nitrogen 20% min, Si 40-50%

FeSiN-25N: Nitrogen 25% min, Si 45-55%

FeSiN-30N: High-qib refractory siv, nitrogen Ntau dua lossis sib npaug li 30%

Kev tswj hwm impurity yog qhov tseem ceeb. Tsawg Al, Ca, thiab C cov ntsiab lus ua kom muaj kev sib txuas zoo dua.

Technical Properties ntawm Ferro Silicon Nitride Powder

High refractoriness (>1800℃stability ntau yam)

Zoo heev slag corrosion kuj

Txhim kho thermal shock tsis kam

Tswj tus cwj pwm oxidation

Txhim kho kev sib raug zoo hauv Al2O3-SiC-C systems

 

Pab neeg

Daim ntawv thov ntawm Ferro Silicon Nitride hauv Steelmaking Industry

FeSiN yog dav siv nyob rau hauv steel metallurgy vim nws stability nyob rau hauv huab ib puag ncig:

• Blast furnace kais qhov av nplaum (taphole mass)
• Khiav thiab ntxhua khaub ncaws castables
• Ladle hauv ob sab phlu refractories
• Hlau tapping channel kho cov ntaub ntawv

Nws txhim kho corrosion kuj tshwm sim los ntawm molten hlau thiab slag, ncua kev pab cuam lub cub tawg.

Kev siv hauv Refractory thiab Foundry Systems

Tshaj li steelmaking, FeSiN yog siv nyob rau hauv advanced refractory systems:

• Al2O3-SiC-C cib
• High -kev ua tau zoo monolithic refractories
• Casting tundish cov ntaub ntawv
• Tsis yog -ferrous metallurgy rauv hauv ob sab phlu

Kev sib piv:Ferro Silicon Nitride vs Ferrosilicon

Qhov sib txawv ntawm FeSiN thiab Silicon Nitride (Si3N4)

Silicon nitride (Si3N4) yog cov khoom siv ceramic ntshiab, thaum FeSiN yog cov khoom sib xyaw uas muaj cov hlau thiab cov seem silicon theem. FeSiN yooj yim rau kev koom ua ke rau hauv metallurgical systems, thaum Si3N4 yog siv nyob rau hauv advanced ceramics thiab precision engineering Cheebtsam.

Ferro Silicon Nitride Powder Size thiab Particle Distribution

Qhov loj me me cuam tshuam rau kev ua haujlwm hauv cov tshuab refractory:

• 0-1 hli: Fine refractory mixing
• 1-3 hli: Standard ladle daim ntaub ntawv
• 3-10 mm: Cov ntaub ntawv kho qhov cub tawg
• Powder form (tsawg dua lossis sib npaug rau 200 mesh): Cov qauv tsim tshwj xeeb castable

Yuav ua li cas Ferro Silicon Nitride Powder tau ntim thiab xa khoom

Kev ntim khoom kom zoo yog qhov tseem ceeb los tiv thaiv oxidation thiab nitrogen poob:

• 25 kg PP woven hnab nrog PE liner
• 1-tuj jumbo hnab rau bulk thauj
• Cov nruas hlau kaw rau cov dej noo- cov qib rhiab heev

Shipping tej yam kev mob feem ntau muaj xws li qhuav thawv thauj nrog noo noo tiv thaiv thiab tswj stacking kom tsis txhob particle degradation.

Cov Lus Qhia Txog Kev Muag Khoom rau Ferro Silicon Nitride

• Paub meej tias nitrogen cov ntsiab lus yuav tsum tau (20-30%)
• Xyuas particle loj compatibility nrog refractory system
• Xyuas kom tsis muaj impurity specification (Al, Ca, C)
• Thov COA thiab daim ntawv qhia kev sib xws
• Txheeb xyuas cov ntaub ntawv kev ua haujlwm ntawm slag

FAQ - Ferro Silicon Nitride (FeSiN)

 

Q1: Ferro Silicon Nitride siv rau dab tsi?
A: Nws yog tsuas yog siv nyob rau hauv steelmaking refractories, tshwj xeeb tshaj yog nyob rau hauv blast furnace taphole av nplaum, ladle linings, thiab siab - kub castables los txhim kho yaig kuj thiab thermal stability.

Q2: Dab tsi yog cov ntsiab lus nitrogen hauv FeSiN?
A: Cov qib kev lag luam feem ntau yog li ntawm 10% txog 30% nitrogen nyob ntawm daim ntawv thov. Cov nitrogen ntau dua txhim kho kev ua haujlwm ntawm refractory.

Q3: Puas yog FeSiN zoo dua ferrosilicon?
A: Yog rau daim ntawv thov refractory. FeSiN muaj qhov zoo dua slag tsis kam thiab thermal shock stability piv rau ferrosilicon.

Q4: Dab tsi particle loj feem ntau siv?
A: 0-3 hli feem ntau yog siv, thaum hmoov hmoov (tsawg dua los yog sib npaug rau 200 mesh) yog siv tshwj xeeb castables.

Q5: FeSiN puas tuaj yeem siv tsis yog -ferrous metallurgy?
A: Yog, nws yog siv nyob rau hauv txhuas thiab tooj liab rauv hauv ob sab phlu vim nws kub tsis kam.

 

Q6: Dab tsi yog qhov zoo ntawm nitrogen hauv FeSiN?
A: Nitrogen txhim kho kev sib raug zoo ntawm kev sib raug zoo thiab tsim cov qib silicon nitride uas txhim kho thermal thiab tshuaj stability.

Q7: FeSiN ua haujlwm li cas?
A: Nws yog tsim los ntawm nitriding ferrosilicon nyob rau hauv kev tswj siab -kub nitrogen cua.

Q8: Qhov kev cia khoom yog dab tsi?
A: Nws yuav tsum tau muab khaws cia rau hauv qhov chaw qhuav, kaw kom tsis txhob ya raws thiab oxidation.

Q9: Dab tsi kev lag luam siv FeSiN feem ntau?
A: Steelmaking, foundry, thiab refractory manufacturing industries yog thawj cov neeg siv.

Q10: Lub txee lub neej ntawm FeSiN hmoov yog dab tsi?
A: Feem ntau 6-12 lub hlis nyob rau hauv qhuav thiab kaw cia tej yam kev mob.

Hu rau- Ferro Silicon Nitride (FeSiN)

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