Silicon carbide cib

1. Cov ntsiab lus tseem ceeb ntawm silicon carbide cib yog SiC, cov ntsiab lus yog 72%-99%. Silicon carbide cib tau siv hauv kev lag luam sib txawv thiab cov khoom siv cua sov vim qhov sib txawv ua ke. Raws li cov txheej txheem sib txawv sib txawv, cov khoom lag luam silicon carbide tau muab faib ua av nplaum, Sialon kev sib txuas, kev sib txuas alumina, kev sib txuas rau tus kheej, kev ua kom siab txhuas, kev sib txuas silicon nitride, thiab ntxiv rau. Dab tsi yog kev siv silicon carbide cib? Cov ntawv thov tseem ceeb yog dab tsi?

2. Vim tias cov khoom siv raw ntawm silicon carbide cib yog silicon carbide, silicon carbide, tseem hu ua emery, yog ua los ntawm kev kub-kub yaj ntawm cov khoom siv raw xws li quartz xuab zeb, coke, thiab ntoo ntoo. Silicon carbide feem ntau siv los ua cov txheej txheem refractories siab vim nws cov khoom ruaj khov, ua kom muaj cua sov siab, tsis muaj cua sov nthuav dav coefficient, thiab hnav zoo.

3. Cov pob zeb Silicon carbide tau ua tiav rau hauv qhov kub thiab txias ua kom sov cov nplaim hluav taws siv cov yam ntxwv ntawm silicon carbide xws li tiv taus xeb, tiv taus kub, muaj zog siab, ua kom muaj cua sov zoo, thiab tiv taus kev cuam tshuam, thiab siv ntau yam kub cov khoom siv cua sov.

4. Cov khoom siv Silicon carbide siv silicon carbide ua raw khoom, ntxiv av nplaum, silicon oxide thiab lwm yam khi rau sinter ntawm 1350 txog 1400 ° C. Silicon carbide thiab silicon hmoov kuj tseem tuaj yeem ua rau hauv cov khoom siv silicon nitride-silicon carbide hauv cov cua nitrogen hauv qhov cub hluav taws xob. Cov khoom siv carbon muaj cov cua sov nthuav dav qis qis, ua kom muaj cua sov zoo, tiv taus cua sov poob siab, thiab kub siab zog. Nws tsis muag tom qab siv sijhawm ntev ntawm qhov kub, tsis corroded los ntawm cov kua qaub thiab alkali, muaj ntsev zoo tiv taus, thiab tsis ntub dej los ntawm cov hlau thiab slag. Nws yog lub teeb nyob hauv qhov hnyav thiab yog cov khoom lag luam zoo tiv taus qhov kub thiab txias. Qhov tsis zoo yog tias nws yooj yim rau oxidize ntawm qhov kub thiab tsis haum rau siv hauv qhov chaw oxidizing. Cov khoom siv roj carbon tau siv dav hauv cov cua sov ua kom sov cov cua sov (cov cua sov hauv qab, lub qhov cub, qis ib feem ntawm lub qhov cub ua kom sov, thiab lwm yam), ntxiv rau hauv ob sab phlu ntawm cov hlau uas tsis yog hlau ntxhuav rauv.

5. Muaj feem cuam tshuam txog lub cev thiab tshuaj lom neeg ntawm silicon carbide cib: