Kev faib tawm ntawm cov cib hluav taws xob rwb thaiv tsev rau cov qhov cub iav 2

Tsab ntawv xov xwm no peb yuav txuas ntxiv qhia txog kev faib tawm ntawm cov cib hluav taws rwb thaiv tsev rau cov qhov cub iav.

3. Av nplaumcib hluav taws xob rwb thaiv tsevNws yog cov khoom siv rwb thaiv tsev uas ua los ntawm cov av nplaum uas muaj Al2O3 cov ntsiab lus ntawm 30% ~ 48%. Nws cov txheej txheem tsim khoom siv txoj kev hlawv tawm thiab txoj kev ua npuas ncauj. Cov av nplaum uas tsis hnyav thiab rwb thaiv tsev muaj ntau yam kev siv, feem ntau yog siv los ua cov khoom siv rwb thaiv tsev ntawm cov txheej rwb thaiv tsev hauv ntau lub qhov cub hluav taws xob uas tsis sib cuag nrog cov khoom yaj. Nws qhov kub ua haujlwm yog 1200 ~ 1400 ℃.
4. Cov cib ua los ntawm txhuas oxide rwb thaiv tsev. Cov khoom no muaj kev tiv thaiv hluav taws kub thiab tiv thaiv kev poob siab zoo, thiab feem ntau siv ua txheej rwb thaiv tsev kub rau cov qhov cub. Nws qhov kub ua haujlwm yog 1350-1500 ℃, thiab qhov kub ua haujlwm ntawm cov khoom ntshiab siab tuaj yeem ncav cuag 1650-1800 ℃. Nws yog cov khoom rwb thaiv tsev refractory ua los ntawm cov khoom siv raw ntawm fused corundum, sintered alumina, thiab industrial alumina.
5. Cov cib mullite sib dua. Cov khoom siv rwb thaiv tsev thiab cov khoom siv refractory ua los ntawm mullite ua cov khoom siv tseem ceeb. Cov cib mullite rwb thaiv tsev muaj kev tiv taus kub siab, muaj zog siab, tsis tshua muaj thermal conductivity, thiab tuaj yeem sib cuag ncaj qha nrog cov nplaim taws, thiab lawv tsim nyog rau kev siv rau hauv ntau yam cub tawg.
6. Cov cib ua los ntawm cov pob zeb aluminium oxide hollow. Cov cib ua los ntawm cov pob zeb aluminium oxide hollow feem ntau yog siv rau kev siv mus sij hawm ntev hauv qab 1800 ℃. Nws muaj kev ruaj khov tshuaj zoo thiab tiv taus xeb ntawm qhov kub siab. Piv nrog rau lwm cov cib rwb thaiv tsev sib dua, cov cib alumina hollow muaj qhov kub ua haujlwm siab dua, muaj zog dua, thiab ua kom thermal conductivity qis dua. Nws qhov ceev kuj qis dua 50% ~ 60% piv rau cov khoom siv refractory ntom ntom ntawm tib lub cev, thiab tuaj yeem tiv taus qhov cuam tshuam ntawm cov nplaim taws kub siab.