Basic qhia txog fused mullite

Fused mullite cib feem ntau hu ua hlau cib, uas yog cov khoom siv tsis muaj zog acidic refractory. Txoj kev tsim khoom yog tib yam li cov txheej txheem tsim khoom ntawm fused zirconia corundum cib, uas yog, ua tib zoo xaiv thiab pretreated raw cov ntaub ntawv raug muab tso rau hauv lub cub hluav taws xob kom yaj, thiab tom qab ib lub sij hawm, lawv raug txhaj rau hauv cov qauv tsim. . Cov ntsiab lus tseem ceeb yog Al2O3, cov ntsiab lus uas tuaj yeem ncav cuag ntau dua 75%, thiab cov ntsiab lus ntawm SiO2 yog li 15%. Ntxiv nrog rau corundum crystals, nws feem ntau yog mullite crystals. Cov iav theem yog ntim ntawm cov theem siv lead ua. Qhov ntom ntawm fused mullite bricks tsis siab npaum li cov fused zirconia corundum cib, tab sis qhov ceev kuj nce mus txog 2.7 ~ 3.2g / cm3. Lub refractoriness yog 1730 ~ 1800 ° C. Lub load softening kub yog 1700 ° C los yog siab dua.