Waa kuwee lebenkii alwaax ahaanta ku shaqeeya ma loo isticmaalaa shooladaha qarxa ee kulul?

Lebennada dib-u-celinta ee shooladaha kulul waxaa ka mid ah leben dhoobada ah, lebennada silica, iyo lebennada aluminium sare leh (oo ay ku jiraan lebennada mullite, leben sillimanite, leben andalusite, leben kyanite, iyo lebenka callosum corpus). Shuruudaha guud ee shooladaha qaraxa kulul ee lebennada celinaya waa: heerka gurguurta oo hooseeya, xoog heerkul sare oo wanaagsan, iyo caabbinta shoogga kulaylka oo wanaagsan. Marka laga soo tago buuxinta shuruudaha kor ku xusan, leben la hubiyay oo loogu talagalay shooladaha qaraxa kulul waa in sidoo kale ay leeyihiin awood kulayl oo weyn. Si aad si macquul ah ugu dooratid lebenka refractory ee naqshadeynta shooladda kulul, waa in aan marka hore fahamnaa waxqabadka lebenka refractory. Sababtoo ah cabbiraadaha sifada walxaha dib-u-celinta saxda ah ayaa ah saldhigga si loo hubiyo naqshad sax ah oo la isku halayn karo.

Nolosha adeegga shooladda kulul waa mid aad u dheer, guud ahaan waxay u baahan tahay 10-20 sano. Refractories waxay qaadaan culeysyo culus culeyskooda awgeed. Sidaa darteed, refractories leh iska caabin gurguurta oo aad u wanaagsan ayaa loo baahan yahay in lagu isticmaalo culeysyo heerkul sare ah. Iska caabbinta heerkul sarreeya ee leben silica ayaa ah kan ugu sarreeya, heerka heerkulka sare ee gurguurta waa mid aad u hooseeya; oo ay ku xigto leben-aluminium-sare ah, oo ay ku jiraan leben-alumina-sare oo ka samaysan aluminium clinker-sare iyo macdanta sillimanite, kuwaas oo leh sifooyin heerkul sarreeya oo wanaagsan. Sida ugu dhow ee ay ka kooban tahay si ay u mullite, ayaa ka wanaagsan iska caabinta gurguurta ee lebenka.