Cov Cib Hluav Taws Xob Uas Muaj Qhov Nyhav Sib Nqus yog ua los ntawm cov av nplaum hluav taws grog ua cov khoom siv raw thiab cov av nplaum yas ua tus neeg sawv cev khi tom qab ntawd ntxiv cov neeg sawv cev uas tsim nyog los yog tus neeg sawv cev ua npuas ncauj los ntawm kev hlawv. Cov thaiv rwb thaiv tsev av nplaum pom tseeb porosity siab txog li 40 ~ 85% thiab qhov ceev ntawm qhov loj yog qis dua 1.5 g / cm3. Cov cib hluav taws xob rwb thaiv tsev av nplaum feem ntau yog siv ua cov ntaub ntawv rwb thaiv tsev hauv qhov cub hluav taws xob kom txo qhov poob cua sov ntawm qhov cub, txuag hluav taws xob thiab ua kom zoo dua ntawm cov khoom siv thermal.
Cov Cib Ua Los Ntawm Av nplaum Uas Muaj Qhov Nyhav Sib Nqus yog tsim los ntawm cov av nplaum hluav taws kub thiab cov khoom sib txuas, los ntawm kev sintering los ntawm qhov kub siab. Cov blocks rwb thaiv tsev av nplaum yog cov cib rwb thaiv tsev pheej yig uas muaj kev ua tau zoo. Cov txiaj ntsig tseem ceeb ntawm cov block rwb thaiv tsev av nplaum yog qhov refractoriness siab nyob rau hauv qhov hnyav, cov coefficients nthuav dav kab qis, kev tiv thaiv thermal zoo thiab muaj peev xwm tiv taus kev yaig. Uas yog ua los ntawm cov khoom siv hluav taws kub hauv zos hauv qab qhov kub siab raws li tus qauv hauv tebchaws, uas muaj qhov ceev txawm tias, lub zog siab, kev ua haujlwm thermal qis thiab tsis muaj kuab paug tsawg.
Cov av nplaum rwb thaiv tsev hluav taws xob yog cov khoom lag luam argillaceous nrog li 30 ~ 40% Al2O3 cov ntsiab lus. uas yog ua los ntawm 50% av nplaum mos thiab 50% chamotte tawv raws li qee qhov granularity xav tau sib tov thiab hlawv ntawm 1300 ~ 1400 ℃ kub tom qab molding thiab ziab. Cov av nplaum rwb thaiv tsev hluav taws xob tseem ceeb muaj xws li kaolinite (Al2O3 · 2SiO2 · 2H2O) thiab 6 ~ 7% impurities (K, Na, Ca, Ti, Fe oxide).
| Cov khoom | NG-0.6 | NG-0.8 | NG-1.0 | NG-1.3 | NG-1.5 | |
| Kub Siab Tshaj Plaws rau Kev Pabcuam | 1200 | 1280 | 1300 | 1350 xyoo | 1400 | |
| Kev Ceev Ntau, g / cm3 | 0.6 | 0.8 | 1.0 | 1.3 | 1.5 | |
| Pom tseeb porosity,% | 70 | 60 | 55 | 50 | 40 | |
| Lub zog tsoo txias (Mpa) ≥ | 2.0 | 2.5 | 3.0 | 4.0 | 6.0 | |
| Kev Hloov Kab Rov Tav Rov Ua Kub (%) ℃ × 12h ≤ | 1300 ℃ -0.5 | 1350 ℃ -0.5 | 1350 ℃ -0.9 | 1350 ℃ -0.9 | 1350 ℃ -0.9 | |
| Kev ua kom sov W/(m·K) | 600 ℃ | 0.16 | 0.45 | 0.43 | 0.61 | 0.71 |
| 800 ℃ | 0.18 | 0.50 | 0.44 | 0.67 | 0.77 | |
| Al2O3 | 40 | 40 | 40 | 40 | 42 | |
| SiO2 | 1.5 | 1.5 | 1.5 | 2 | 2 | |
| Fe2O3 | 55 | 55 | 55 | 55 | 55 | |
Cov av nplaum rwb thaiv tsev feem ntau yog siv rau cov txheej rwb thaiv tsev ntawm cov chaw kub lossis cov txheej rwb thaiv tsev ntawm lwm cov khoom siv refractory. Cov txheej rwb thaiv tsev lossis cov khoom siv rwb thaiv tsev kub ntawm kev lag luam, xws li, ethylene pyrolysis furnaces, tubular furnaces, reforming furnaces ntawm synthetic ammonia, roj generators thiab high temperature shullte kilns, thiab lwm yam.