Isitena sesilica intshayelelo yokusebenza

Isitena se-silica luhlobo lwe-refractory edla ngokusetyenziswa kwizixhobo zokushisa eziphezulu ezifana neglasi yeglasi, i-oven ye-coke kunye nesitovu esitshisayo.

Isitena se-silica luhlobo oluphambili lwe-siliceous refractory material, apho ubukhulu be-SiO2 bungekho ngaphantsi kwe-93%. Isitena se-silica sisitena esinqabileyo se-asidi, esinokumelana okuncomekayo kwi-asidi ye-asidi, kwaye ikwazi ukumelana ne-oksidi efana ne-Al2O3, i-FeO, i-Fe2O3, kodwa inamandla okumelana ne-slag esisiseko, kwaye ichaphazeleka ngokulula yi-CaO, K2O, yonakaliswe ziioksidi ezifana neNa2O. Iqondo lokushisa lokunciphisa umthwalo wezitena ze-silica liphezulu njenge-1640-1680 ℃, kwaye umthamo uzinzile ekusebenziseni ixesha elide kwiqondo lokushisa eliphezulu. Nangona kunjalo, izitena ze-silica zinokuxhathisa ukothuka kwe-thermal kunye nokungonelanga kwe-refractoriness. Iipropati zezitena ze-silica, ezibandakanya ukubunjwa kwamaminerali amachiza, ubuninzi bokwenene, ubuninzi bobuninzi, ukunyanzeliswa kwe-refractoriness, ukuthambisa ubushushu phantsi komthwalo, ukuzinza kwevolumu yobushushu obuphezulu, ukuxhathisa ukothuka kwe-thermal kunye nokumelana ne-slag, njl njl kunye nezinye izinto ezininzi ezinxulumene ngokusondeleyo.