Dab tsi yog cov khoom tseem ceeb ntawm silica cib

Cov khoom siv acidic refractory feem ntau yog tsim los ntawm tridymite, cristobalite thiab ib qho me me ntawm cov seem quartz thiab iav theem.

Cov ntsiab lus silica yog siab dua 94%. Qhov ceev ceev yog 2.35g / cm3. Nws muaj peev xwm tiv taus acid slag yaig. Siab kub siab zog. Qhov pib kub ntawm load softening yog 1620 ~ 1670 ℃. Nws yuav tsis deform tom qab siv mus ntev ntawm qhov kub thiab txias. Tsawg thermal shock stability (1 ~ 4 npaug ntawm cov cua kub pauv hauv dej) Ntuj silica yog siv los ua cov khoom siv raw, thiab ntxiv cov mineralizer ntxiv los txhawb kev hloov pauv ntawm quartz hauv lub cev ntsuab rau hauv phosphorite. Maj mam raug rho tawm haujlwm ntawm 1350 ~ 1430 ℃ hauv kev txo qhov cua. Thaum rhuab mus rau 1450 ℃, yuav muaj li ntawm 1.5 ~ 2.2% ntawm tag nrho cov ntim expansion. Qhov seem seem no yuav ua rau cov txiav cov pob qij txha nruj thiab xyuas kom meej tias cov masonry muaj huab cua nruj thiab lub zog zoo.