Intshayelelo kwiindidi kunye nemathiriyeli ye izitena zokufakelwa kwe-thermal ezilula

Kukho iintlobo ezininzi zezitena ezikhaphukhaphu kunye nezixhobo. Izitena zokunciphisa isandi esikhanyayo ekwakhiweni ziveliswa kwaye zicutshungulwe ngeteknoloji ye-foam. Kwishishini le-refractory, izitena ezilula zikwabizwa ngokuba yi-heatweight-insulating refractory izitena, ezingenakukwazi ukugcina ngokufanelekileyo amandla kunye nokushisa Kwaye inokusetyenziswa kwiqondo lokushisa elithile. Izitena ezikhaphukhaphu eziphezulu ze-alumina zikwabizwa ngokuba zizitena eziphezulu ze-alumina zokufakelwa kwe-thermal. Umxholo we-alumina ungaphezulu kwe-48%, kwaye i-refractory ekhaphukhaphu kakhulu eyenziwe yi-mullite kunye nesigaba seglasi okanye i-corundum. Ubuninzi bobuninzi yi-0.4～1.35g/cm3. I-porosity yi-66% ~73%, kwaye amandla oxinzelelo yi-1～8MPa. Ukumelana nokothuka kwe-Thermal kungcono.

Izitena eziphezulu ze-alumina ezilula zivame ukusebenzisa i-bauxite clinker ephezulu kunye nodongwe oluncinci, emva kokuba lucolile, lugalelwe kwaye lubunjwe ngendlela yodaka ngendlela yokuvelisa igesi okanye indlela ye-foam, kwaye igxothwe kwi-1300-1500 ° C. . Ngamanye amaxesha i-alumina ye-industrial ingasetyenziselwa ukutshintsha inxalenye ye-bauxite clinker. Isetyenziselwa i-lining kunye ne-heat insulation layer ye-masonry kilns, kunye neendawo ezingagqwaliswanga kwaye zikhutshulwe zizixhobo ezityhidiweyo ezinobushushu obuphezulu. Xa udibana ngqo nedangatye, iqondo lobushushu bomphezulu aliyi kuba ngaphezulu kwe-1350°C. Izitena ze-refractory ezilula zokufakelwa kwe-thermal zifanelekile kuluhlu lobushushu lwe-900℃～1650℃. Ineempawu zokumelana nobushushu obuphezulu, amandla aphezulu, ukuhanjiswa kwe-thermal ephantsi, kunye nefuthe elimangalisayo lokonga amandla.