Khoom Description
Ferro silicon nitride (Fe-Si3N4) yog ib qho tshiab nitride raws li raw khoom ua ke siv cov tshuab nitriding ntawm qhov kub thiab txias. Nyob rau xyoo 1970, Nyiv tau ua tiav cov khoom siv tshiab silicon nitride refractory, silicon hlau nitride. Nws yog cov khoom ntawm nitriding silicon hlau alloy hmoov los ntawm cua sov nws nyob rau hauv ib qho chaw tshuaj lom neeg mus rau 1200-1400 degree . Nws cov khoom tseem ceeb yog 75% ~ 80% (w) silicon nitride, thiab nws kuj muaj cov hlau dawb thiab tsis muaj nitrided FeSi. Txij thaum ntawd los, ntau lub teb chaws tau pib tshawb fawb silicon hlau nitride ua cov khoom siv.
Vim nws qhov kev ua tau zoo ntawm qhov kub thiab txias, kev tiv thaiv corrosion, hnav tsis kam, thiab sintering zog, thermal conductivity, thiab me me coefficient ntawm thermal expansion, silicon nitride hlau yog dav siv tsis tau tsuas yog nyob rau hauv blast furnace slurry, tab sis kuj nyob rau hauv refractory ntaub ntawv xws li carbon uas muaj cov ntaub ntawv refractory, high-temperature cov ntaub ntawv, thiab magnesium raws li castables.
Txoj kev npaj ntawm ferro silicon nitride
Direct hydrogenation txoj kev:
Txoj kev ncaj qha ammonification yog los npaj silicon hlau nitride hmoov los ntawm nitriding silicon hlau hmoov thiab silicon hmoov nyob rau hauv nitrogen ntawm qhov kub thiab txias rau lub sij hawm ntev. "Kev tsim cov txheej txheem ntawm silicon hlau nitride" tsim nyob rau hauv cov ntaub ntawv yog siv silicon hmoov thiab silicon hlau hmoov raws li raw cov ntaub ntawv, nyob rau hauv ib tug nitrogen cua, ntawm ib tug kub ntawm 1000-1400 degree, nrog ib tug cua sov tus nqi siab tshaj 10 degree. - h-1, los tsim silicon hlau nitride los ntawm nitriding mus ntev. Txoj kev ncaj qha nitriding muaj qhov kub thiab txias ntev. Txhawm rau txo qhov kub ntawm nitriding thiab txo lub sij hawm nitriding, cov txheej txheem tshuaj kho tshuab siv los kho cov khoom siv raw, thaum lwm tus ua ntej kho cov khoom siv raw thiab tom qab ntawd kho qhov hluav taws xob ntxiv. Kev tshawb fawb tau pom tias qhov me me ntawm silicon hlau hmoov muaj qhov cuam tshuam loj rau cov nyhuv nitriding thaum lub sij hawm ncaj qha nitriding txheej txheem, nrog finer silicon hlau hmoov (d50=5.229) μ m) Thaum nitriding, cov tshuaj tiv thaiv ceev yog ceev thiab cov tshuaj tiv thaiv yog khaus, ua rau hnyav sintering thiab tsis zoo nitriding nyhuv; Thiab cov coarser silicon hlau hmoov (d50=13.41) μ m) Cov nyhuv nitriding yog qhov zoo.
Zuag qhia tag nrho, qhov zoo ntawm txoj kev ncaj qha nitriding rau kev npaj Fe-Si3N4 yog cov txheej txheem yooj yim thiab cov khoom siv tsawg dua; Qhov tsis zoo yog qhov tsawg nitriding, lub sij hawm ntev nitriding, thiab kev siv zog siab. Tsis tas li ntawd, kom tau txais cov ntsiab lus siab ntawm B-Si3N4, nws yog ib qho tsim nyog yuav tsum tau mus rau lub sij hawm ntev high-temperature nitriding, uas ua rau kom muaj zog ntau ntxiv.
.
tiv tauj
ZHENAN METALLURGY CO., LTD
Txawb: +86-18940984078 (whatsapp)
Wechat: 15637258875
Fax: +86-372-5055180
Email: soyee@zaferroalloy.com
Lub Vev Xaib: https://www.zaferroalloy.com/
https://zanewmetal.com/
Chaw Haujlwm: Wanda Center, Anyang City, Henan Province, Suav
Cim npe nrov: Tuam Tshoj hluav taws kub tsis kam silicon nitride hmoov manufacturers, lwm tus neeg, Hoobkas