cov khoom ntawm silicon nitride
Ferrosilicon nitride rau cov ntaub ntawv refractory yog cov hmoov dawb (los yog xim av) hmoov, thiab ferrosilicon nitride rau steelmaking yog ib qho dawb dawb granular. Silicon nitride yog sib xyaw ntawm silicon nitride thiab hlau, feem ntau muaj 75% ~ 80% (w) ntawm Si3N4, 12% ~ 17% (w) ntawm Fe, thiab Si dawb tsis ntau tshaj 1% (w). Si3N4 hauv ferrosilicon nitride muaj ob daim ntawv siv lead ua, thiab, ob qho tib si yog hexagonal siv lead ua, thiab cov khoom hlau muaj nyob rau hauv daim ntawv ntawm -Fe los yog (thiab) hlau silicides.
Ferrosilicon nitride muaj Si3N4 vim muaj cov Si3N4phase Qee cov khoom zoo heev, xws li siab refractoriness, zoo erosion kuj, siab mechanical zog, zoo thermal shock resistance, tsawg thermal expansion tus nqi, siab oxidation kuj thiab ib tug series ntawm zoo; Nws kuj muaj cov khoom zoo sintering vim nws muaj Fe yas theem. Nyob rau tib lub sijhawm, piv nrog silicon nitride, ferrosilicon nitride yog pheej yig dua thiab yooj yim rau kev lag luam nce qib thiab ntau lawm, yog li nws tau raug siv los ua cov khoom siv raw rau cov ntaub ntawv refractory, high-temperature bonded theem thiab high-temperature structural cov ntaub ntawv, thiab tau ua. dav siv nyob rau hauv blast furnace hlau trench castables thiab phom av nkos. Nyob rau hauv xyoo tas los no, muaj ntau thiab ntau cov kev tshawb fawb ntawm ferrosilicon nitride cov ntaub ntawv thiab lawv cov kev siv nyob rau hauv refractories.
Ferrosilicon nitride siv nyob rau hauv cov ntaub ntawv refractory
1. Castable Daim ntawv thov ntawm ferrosilicon nitride hauv castables feem ntau tsom rau Al2O3-SiC-C hlau trench castables, magnesia castables thiab high-alumina castables.
2. Artillery av nkos Phom av yog ib qho tseem ceeb ntawm cov khoom siv refractory siv los thaiv lub qhov kais ntawm lub qhov cub tawg, thiab thaum lub kais dej tau tsim, cov slag thiab hlau tawm ntawm qhov kais dej tib lub sijhawm. Nrog rau qhov loj thiab lub neej ntev ntawm blast furnaces, lub nruam ntxiv dag zog ntawm smelting technologies xws li huab cua kub, oxygen-nplua nuj txhaj tshuaj, thiab kev kub siab, siab dua yuav tsum tau muab tso rau pem hauv ntej rau kev ua tau zoo ntawm blast av nkos, xws li siab tiv thaiv. chemical, slag thiab npua hlau yaig, zoo sintering thiab sau, zoo heev thermal poob siab tsis kam thiab siab kub ntim stability, me me ib puag ncig muaj kuab paug, yooj yim qhib, yuav ncua lub sij hawm tapping thiab tiv thaiv lub rauv lub tog raj kheej. Nyob rau hauv cov txheej txheem siv tiag tiag, cov hlau ntws ntawm ferrosilicon nitride av nplaum yog ruaj khov, tsis muaj qhov txawv txav xws li txaws thiab liab me ntsis, kub kub flexural zog, muaj zog tiv thaiv molten hlau yaig, thiab nws tuaj yeem ua tiav cov hlau ruaj khov rau ntau tshaj. 60min, uas tuaj yeem thaiv lub qhov ncauj hlau thiab tsis muaj qhov tshwm sim cua thiab hluav taws.
3. Composite refractories Composite refractories yog cov khoom siv refractory nrog cov khoom tshiab uas muaj ob lossis ntau dua cov khoom siv refractory nrog cov khoom sib txawv los ntawm kev siv lub cev lossis tshuaj nyob rau qib macroscopic (microscopic). Daim ntawv thov ntawm ferrosilicon nitride hauv cov khoom sib xyaw refractories feem ntau yog tsom rau cov khoom sib xyaw uas muaj cov pa roj carbon thiab cov tsis muaj cov pa roj carbon.
Cim npe nrov: Tuam Tshoj ferro silicon nitride fe-si3n4 manufacturers, lwm tus neeg, Hoobkas