Mullite rwb thaiv tsev cib yog lub siab alumina refractory khoom nrog mullite (3Al2O3 2SiO2) ua lub ntsiab siv lead ua theem. Feem ntau, cov ntsiab lus alumina nyob nruab nrab ntawm 65 feem pua thiab 75 feem pua. Ntxiv nrog rau mullite, cov ntxhia muaj pes tsawg leeg muaj me me ntawm vitreous theem thiab cristobalite nrog qis alumina cov ntsiab lus; ib qho me me ntawm corundum kuj muaj nyob rau hauv cov ntsiab lus alumina siab dua.
Siab refractoriness, mus txog 1790 degree lossis ntau dua. Nyob rau hauv load softening pib kub 1600 ~ 1700 degree. Qhov kub thiab txias compressive zog 70 ~ 260MPa. Zoo thermal shock tsis kam. Muaj ob hom sintered mullite cib thiab fused mullite cib. Lub crystallinity ntawm fused mullite loj dua li ntawm sintered mullite, thiab nws cov thermal shock kuj zoo dua li cov khoom sintered.
Daim ntawv thov:
Mullite lub teeb ci ci tuaj yeem siv los ua cov khoom siv hluav taws xob los yog cov txheej txheem rwb thaiv tsev rau cov txheej txheem kub ua haujlwm. Feem ntau yog mullite rwb thaiv tsev cib siv rau kub moj tej tawg qhov cub sab saum toj, moj tej tawg rauv ncej thiab hauv qab, iav melting rauv regenerator, ceramic sintering kiln, tuag lub kaum sab xis txheej ntawm roj av cracking system, thiab lwm yam.
