Njani ngokusebenza kwe izitena zodongwe refractory?

Izitena ezilahlayo zodongwe ziimveliso ezinqabileyo ze-acidic refractory, ezinokuxhathisa ukhukuliseko lwe-asidi ye-slag kunye negesi ye-asidi, kwaye zibe nokuxhathisa kakubi kwizinto ze-alkaline. Izitena ze-clay refractory zineempawu ezintle zokushisa kwaye ziyakwazi ukumelana nokubanda ngokukhawuleza kunye nokushisa okukhawulezayo.

Ukumelana nomlilo kwezitena ezinqambileyo zodongwe zilingana nezitena ze-silica, ezifikelela kwi-1690～1730℃, kodwa iqondo lokushisa elithambileyo phantsi komthwalo lingaphezulu kwe-200℃ ngaphantsi kwe-silica. Ngenxa yokuba izitena ezilahlayo zodongwe aziqukethe kuphela iikristale ze-mullite ezine-refractoriness ephezulu, kodwa ziqulethe phantse isiqingatha sesigaba seglasi se-amorphous kunye neqondo eliphantsi lokunyibilika.