① FeSiN yog dab tsi thiab vim li cas nws thiaj li siv ntau dua hauv cov tshuab hluav taws xob refractory hauv Is Nrias teb?
Ferrosilicon Nitride (FeSiN) yog ib qho nitride -cov khoom siv metallurgical siv dav hauv high-kub refractory systems, tshwj xeeb tshaj yog nyob rau hauv lub qhov cub tawg hauv ob sab phlu, taphole av nplaum, cov neeg khiav dej num, thiab cov chaw ua haujlwm hlau. Hauv Is Nrias teb qhov kev nthuav dav sai ntawm lub tshuab hluav taws xob hlau ua kom muaj peev xwm, cov tshuab refractory tau ua haujlwm nyob rau hauv cov khoom siv ntau dua, kev sib tw ntev dua, thiab muaj kev kub ntxhov ntau dua.
Hauv ib puag ncig no,30% nitrogen FeSiN, siab nitrogen ferrosilicon nitride, thiab hais txogsib npaug nitrogen alloycov ntaub ntawv tau txais qhov tseem ceeb vim tias lawv muab ob qho tib si kev txhim kho thiab thermal shock buffering los ntawm -situ nitride theem tsim. Raws li qhov tshwm sim, FeSiN tsis raug kho raws li cov tshuaj ntxiv ntxiv tab sis ua ib qhocore refractory khoom additive nyob rau hauv siab -load furnace systems.
② Vim li cas thermal poob siab tsis kam dhau los ua qhov tseem ceeb ntawm kev yuav khoom hauv Is Nrias teb lub tshuab hluav taws xob tawg?
Is Nrias teb qhov tawg qhov cub tawg yog qhov tshwm sim los ntawm kev ua haujlwm ntau zaus -ups, hloov lub nra hnyav, thiab muaj kev hloov pauv siab hauv thermal loading thaum pib- nce thiab ntau lawm. Cov xwm txheej no ua rau rov ua cov thermal gradients hauv cov ntaub ntawv refractory, uas tuaj yeem ua rau tawg pib thiab nthuav tawm.
Refractory manufacturers yog nce tsom rauFeSiN thermal shock kuj coj tus cwj pwmvim hais tias nws ncaj qha txiav txim seb lub hauv ob sab phlu tuaj yeem muaj sia nyob hauv cov cua kub ceev thiab cua txias yam tsis muaj kev ua haujlwm tsis zoo. Thaum cov ntaub ntawv tsis txaus thermal shock tsis kam, microcracks tsim thiab nthuav tawm, nws thiaj li ua rau spalling, yaig acceleration, thiab kaw ntxov ntxov.
Hauv cov ntsiab lus no,FeSiN rau taphole av nplaumthiabnitride bonding additive systemstau txais yuav kom ruaj khov hauv cov qauv hauv qab thermal cycling kev nyuaj siab.
③ Technical parameters of FeSiN siv nyob rau hauv siab - kub blast rauv daim ntawv thov
| Yam khoom | Specification |
|---|---|
| Khoom npe | Ferrosilicon Nitride (FeSiN) |
| Nitrogen ntsiab lus | 25% - 30% (siab nitrogen tswj system) |
| Qib tshwj xeeb | 30% nitrogen FeSiN / FeSi75N alloy |
| Si Content | 50% – 75% |
| Purity Level | Tsawg impurity silicon nitride alloy |
| Hom Particle | FeSiN hmoov 200 mesh / FeSiN pob khoom |
| Muaj nuj nqi | refractory khoom additive / nitride bonding additive |
| Qhov ntom | 2.4-3.2g / cm³ |
| Kev coj cwj pwm | tswj nitridation ntawm qhov kub thiab txias |
④ Yuav ua li cas FeSiN txhim kho thermal poob siab nyob rau hauv blast furnace refractory systems?
Thermal shock resistance nyob rau hauv cov ntaub ntawv refractory feem ntau yog tswj hwm los ntawm lub peev xwm ntawm cov qauv sab hauv kom nqus thiab faib cov thermal kev nyuaj siab yam tsis tsim cov kab nrib pleb. Hauv Is Nrias teb qhov siab - muaj peev xwm tawg rau lub tshuab hluav taws xob, FeSiN ua lub luag haujlwm tseem ceeb los ntawm kev tsim cov theem nitride ruaj khov thaum lub sijhawm ua haujlwm.
Thaum raug kub siab, FeSiN reacts los tsim silicon nitride bonding tes hauj lwm nyob rau hauv lub refractory matrix. Cov tes hauj lwm no ua raws li cov txuas txuas ntxiv microstructural uas txo cov kev ntxhov siab thaum lub sij hawm cua kub ceev thiab cua txias.
Hauv kev siv tshuabFeSiN rau taphole av nplaum, cov nyhuv no yog qhov tseem ceeb tshwj xeeb vim tias thaj av taphole ntsib cov cua sov tshaj plaws thaum lub sij hawm tapping thiab ntsaws cov haujlwm. Lub xub ntiag ntawm FeSiN txo qhov tawg nrawm nrawm thiab txhim kho cov txheej txheem rov qab los ntawm cov txheej xwm thermal.
Raws li qhov tshwm sim, cov txheej txheem refractory hauv ob sab phlu qhia tau tias muaj kev ruaj ntseg zoo dua, tshwj xeeb tshaj yog nyob rau hauv siab -frequency tapping ib puag ncig muaj nyob rau hauv Indian integrated steel nroj tsuag.
⑤ FeSiN qib sib piv rau refractory thermal shock kev ua tau zoo
FeSi75N alloy vs standard FeSiN
FeSi75N alloy muaj ntau dua silicon cov ntsiab lus nrog tswj nitrogen theem, muab kev sib xyaw ua ke ntawm thermal stability thiab mechanical reinforcement. Standard FeSiN tuaj yeem pom qhov sib txawv ntawm qhov sib txawv, ua rau tsis tshua muaj kev cuam tshuam thermal poob siab.
30% nitrogen FeSiN vs pa nitrogen FeSiN
30% nitrogen FeSiN muab siab dua nitride theem muaj peev xwm, ua rau muaj zog sib txuas network tsim nyob rau hauv thermal cycling tej yam kev mob. Cov qhabnias ib txwm yuav tsis tuaj yeem ua tiav tib theem ntawm kev txhim kho cov txheej txheem hauv qhov chaw sov heev.
FeSiN hmoov 200 mesh vs FeSiN pob khoom
FeSiN hmoov 200 meshUa kom muaj kev sib cais tsis sib xws hauv castable formulations, txhim kho kev sib xws hauv thermal stress tis.FeSiN khoom sivyog nyiam nyob rau hauv coarser refractory systems qhov twg cov tshuaj tiv thaiv kinetics qeeb qeeb yuav tsum tau ntev -lub sij hawm stability.
⑥ Yuav ua li cas yog FeSiN muab thiab ntim rau industrial refractory daim ntaub ntawv?
FeSiN tau muab rau hauv ob qho tib si hmoov zoo thiab pob daim ntawv nyob ntawm qhov yuav tsum tau ua ntawm cov txheej txheem refractory. Hmoov- cov ntaub ntawv qib feem ntau yog siv rau hauv castable thiab nplua matrix formulations, thaum cov ntaub ntawv pob yog siv nyob rau hauv taphole av nplaum thiab hnyav- lub luag hauj lwm rauv hauv ob sab phlu.
Kev ntim khoom yog ua nyob rau hauv kev lag luam - qib ya raws- cov hnab jumbo resistant, feem ntau yog 1 MT ib lub hnab, nrog cov hnab hauv qab tsim los tiv thaiv oxidation thiab nitrogen poob thaum khaws cia thiab thauj.
Raws li tus neeg muab khoom thoob ntiaj teb ntawmsiab nitrogen ferrosilicon nitride, ZhenAn ua kom ruaj khov batch-rau-batch zoo tswj rau thoob ntiaj teb moj tej tawg rauv tej yaam num, nrog rau tej khoom xa mus rau Is Nrias teb cov expanding steel kev lag luam.
⑦ FAQ: Vim li cas FeSiN thermal shock kuj tseem ceeb hauv Is Nrias teb lub tshuab hluav taws xob tawg?
Vim li cas thermal shock tsis kam tseem ceeb hauv Is Nrias teb lub tshuab tawg tawg?
Vim hais tias nthuav dav blast furnace kev khiav hauj lwm muaj feem xyuam rau thermal cycling, uas ua rau kom muaj kev pheej hmoo ntawm refractory cracking thiab ua ntej lub sij hawm txheej txheej tsis ua hauj lwm.
FeSiN txhim kho refractory durability hauv Indian steel nroj tsuag li cas?
Nws tsim cov nitride bonding tes hauj lwm uas txhim khu kev ntseeg ruaj khov nyob rau hauv rov ua cua sov thiab cua txias.
Cov thermal cycling puas tuaj yeem ua rau tawg hauv cov kab hluav taws xob?
Yog lawm. Kev hloov pauv sai sai ua rau muaj kev ntxhov siab sab hauv uas ua rau microcrack tsim thiab nthuav tawm.
Vim li cas Indian refractory manufacturers siv FeSiN additives?
Ua kom ruaj khov refractory qauv thiab txhim kho kev tiv thaiv thermal thiab tshuaj degradation.
FeSiN ua li cas txhim kho kev tiv thaiv rau kev hloov kub ceev?
Los ntawm kev tsim silicon nitride theem uas faib cov thermal stress ntau tusyees thoob plaws refractory matrix.
Cov teeb meem dab tsi uas nthuav dav hlau ua vaj tse ntsib nyob rau hauv refractory stability?
Kev sib tw ntau dua, tsis ruaj khov thermal gradients, thiab kev ua haujlwm ntev dua uas ua rau muaj kev ntxhov siab ntawm cov ntaub ntawv hauv ob sab phlu.
FeSiN ua li cas txuas rau lub tshuab hluav taws xob lub neej nyob rau hauv cov xwm txheej hnyav?
Los ntawm kev txhawb nqa microstructure thiab txo cov kab nrib pleb thaum lub sij hawm thermal cycling.
Vim li cas kev tswj kev ntxhov siab thermal tseem ceeb heev hauv - nplai hlau ua?
Vim tias tsis muaj kev tswj hwm kev ntxhov siab ua rau cov txheej txheem tsis ua haujlwm, lub sijhawm poob qis, thiab cov nqi kho mob siab.
Rau kev sib tham txog kev sib tham, kev qhia tshwj xeeb, lossis cov khoom siv ntau ntawm refractory -qib FeSiN cov ntaub ntawv:
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