Ijolise kwimpembelelo yamacandelo ahlukeneyo izitena eziphezulu ze-alumina refractory ekusebenzeni

Ngokunyuka komxholo we-Al2O3 kwizitena eziphezulu ze-alumina refractory, inani le-mullite kunye ne-corundum components liyanda, kwaye isigaba seglasi siyancipha ngokuhambelanayo, kunye nokumelana nomlilo kunye nobuninzi bezitena eziphezulu ze-alumina refractory nazo zanda. Xa umxholo we-Al2O3 kwisitena esiphezulu se-alumina singaphantsi kwe-71.8%, isigaba se-crystal esizinzile kuphela somgangatho ophezulu kwisitena esiphezulu se-alumina refractory yi-mullite, kwaye iyanda ngokunyuka komxholo we-Al2O3. Kuba izitena eziphakamileyo-alumina eziyinjubaqa kunye nomxholo we-Al2O3 ongaphezulu kwe-71.8%, izigaba ze-crystal ezizinzile ezinobushushu obuphezulu zi-mullite kunye ne-corundum. Njengoko umxholo we-71.8% unyuka, inani le-corundum liyanda kwaye i-mullite iyancipha, kunye neempawu eziphezulu zokushisa. izitena eziphakamileyo-alumina eziyinjubaqa ziphuculwe ngokufanelekileyo.

Iqondo lokushisa lokudubula kwezitena eziphezulu ze-alumina refractory kuxhomekeke kwi-sinterability ye-alumina ekrwada. Xa usebenzisa ibakala elikhethekileyo kwaye I grade bauxite clinker (bulk density ≥ 2.80g/cm3), izinto ekrwada inesakhiwo efanayo kunye nomxholo ukungcola eliphezulu, nto leyo eyenza umzimba oluhlaza lula sinter, kodwa ubushushu sintering uluhlu emxinwa, nto leyo kulula ukubangela ukutshisa kakhulu okanye Ukutshisa. Xa usebenzisa i-Clinker ye-bauxite ye-Class II (ubuninzi be-bulk ≥2.55g / cm3), ngenxa yokwandiswa kunye nomphumo wokukhulula obangelwa yi-mulliteization yesibini, umzimba ohlaza awulula ukuba sinter, ngoko ukushisa kokudubula kuphezulu kancinci. Xa usebenzisa i-Bauxite clinker yeClass III (bulk density ≥2.45g/cm3), isakhiwo sixinene, umxholo we-Al2O3 uphantsi, kwaye ubushushu bokudubula buphantsi, ngokuqhelekileyo buphezulu kancinci kunokushisa kwezitena zodongwe nge-30 ~ 50. ℃. Izitena eziphezulu ze-alumina eziphikisayo zivutha kwidangatye eline-oxidizing.