Kodi pali kusiyana kotani pakati pa njerwa ya corundum mullite ndi njerwa yayikulu ya alumina?

Kusiyana kwakukulu pakati pa njerwa za corundum mullite ndi njerwa zapamwamba za alumina ndi gawo la kristalo, ndipo maonekedwe ndi mtundu ndizosiyana. Chifukwa chachikulu ndi chiŵerengero cha zipangizo. Chonde onani mwatsatanetsatane mawu oyamba pansipa.

Njerwa za Corundum mullite

Ili ndi mphamvu yabwino yotentha kwambiri, kukana kutentha kwapang’onopang’ono, kukana kugwedezeka kwamafuta komanso kukana dzimbiri. The thupi ndi mankhwala katundu wa mmene corundum mullite njerwa Al2O3> 85%, Fe2O30.45%, zikuoneka porosity 19%, yachibadwa kutentha compressive mphamvu 55MPa, katundu softening kutentha pamwamba 1700 ℃, Kutentha mzere kusintha (1600 ℃, 3h) -0.1 %.

Njerwa zapamwamba za alumina

Zomwe zili aluminium okusayidi ndi 48% mpaka 85%, zomwe zingagawidwe mwapadera, pulayimale, yachiwiri, yapamwamba, etc. Fe2O30.45%, porosity yowonekera ndi 19%, mphamvu yopondereza pa kutentha kwa chipinda kuposa 55MPa, kutentha kumachepetsa kutentha kumaposa 1700 ℃, kutentha waya kusintha (1600 ℃, 3h) -0.1%, kukana matenthedwe mantha (1100 ℃ madzi kuzirala) nthawi zoposa 30. Chogulitsacho chimagwiritsa ntchito aluminiyamu alum clinker ngati chinthu chachikulu, dongo lofewa ndi zinyalala zamkati ndi mapepala amadzimadzi monga chomangira, ndipo matope okhala ndi masitepe ambiri amapangidwa ndi kuponderezedwa kwakukulu, kuyanika ndi kuwombera kwakukulu.