Farqi weyn ayaa u dhexeeya leben dhoobada ah iyo lebenkii alumina sare, laakiin halkee ku kala duwan yihiin?

Leben dhoobo ah waxay leeyihiin maaddo aluminium ah 35% -45%. Waxay ka samaysan tahay dhoobo adag, oo lagu qaso shuruudaha cabbirka walxaha, la sameeyay oo la qalajiyey, waxaana lagu shiday heerkul ah 1300-1400 ° C. Habka toogashada ee lebenka dhoobada ah ayaa inta badan ah habka fuuq-baxa joogtada ah iyo kala-baxa kaolin si loo sameeyo crystals mullite. Lebenka dhoobada ah ayaa ah alaab aysiidh liidato oo liidata, kuwaas oo iska caabin kara nabaad guurka aashitada iyo gaasta aashitada. Leben dhoobo ah waxay leeyihiin sifooyin kulayl wanaagsan waxayna u adkaystaan ​​qabow degdeg ah iyo kulayl degdeg ah.

Lebenkii Clay

Heerkulka 0-1000 ℃, mugga leben dhoobada ayaa si siman u fidi doona kororka heerkulka. Qalooca fidinta tooska ah wuxuu ku dhow yahay xariiq toosan, iyo heerka fidinta toosan waa 0.6%-0.7%. Marka heerkulku gaaro 1200 ℃, Marka heerkulku sii socdo kor u kaca, mugga ayaa bilaabi doona inuu hoos u dhaco balaadhinta ugu badan. Ka dib marka heerkulka dhoobada dhoobada uu dhaafo 1200 ℃, barta dhalaalka hoose ee lebenka dhoobada ayaa si tartiib tartiib ah u dhalaalaysa, qaybaha si adag ayaa loo cadaadiyaa midba midka kale sababtoo ah xiisadda dusha sare, taasoo keentay hoos u dhaca mugga.

Lebenka aluminium-alumina-sare ee dib-u-soo-celinta waa aluminium aluminium ka kooban 48%. Heerkulka jilcinta iyo culeyska culeyska ee lebenka aluminiumka sare ayaa ka sarreeya lebenka dhoobada ah, iyo iska caabintooda daxalka ayaa ka wanaagsan, laakiin xasilloonidooda kulaylku uma fiicna sida lebenka dhoobada ah. Lebenka aluminiumka sare waxay leeyihiin cufnaan sare, porosity hooseeya waxayna xidhaan caabbinta. Qaar ka mid ah madaxyada foornada iyo foornada foornada, waxay u fiican tahay in la isticmaalo leben-alumina-sare ee dhagaxyada; si kastaba ha ahaatee, haddii ay tahay leben dhoobo ah oo gaar ah oo loogu talagalay foornooyinka kaarboon, ma habboona in la isticmaalo leben-aluminium-sare, sababtoo ah lebenka sare ee aluminiumku waxay u nugul yihiin inay ku fooraraan heerkulka sare. xagal goglan

Leben alumina sare

Lebenka aluminiumka sare ayaa inta badan loo adeegsadaa dahaarka foornooyinka qaraxa, shooladaha qaraxa kulul, saqafyada foornooyinka korontada, foornooyinka qaraxa, foornooyinka dib-u-celinta, iyo kilnnada wareega. Intaa waxaa dheer. lebenkii alumina sare Si kastaba ha ahaatee, qiimaha lebenka alumina sare waa ka badan yahay lebenkii dhoobada, sidaas darteed leben dhoobo ah waa in la isticmaalo halkaas oo leben refractory dhoobo buuxin karo shuruudaha. .