Uyini umehluko phakathi kwezitini ze-corundum mullite nezitini eziphakeme ze-alumina?

Umehluko omkhulu phakathi kwezitini ze-corundum mullite nezitini eziphakeme ze-alumina yisigaba sekristalu, futhi ukubukeka nombala kuhluke kancane. Isizathu esiyinhloko isilinganiso sezinto zokusetshenziswa. Sicela ubheke isingeniso esinemininingwane ngezansi.

Isitini se-Corundum mullite

Inamandla amahle okushisa aphezulu, ukumelana nokukhuphuka kwezinga lokushisa eliphezulu, ukumelana nokushaqeka okushisayo nokumelana nokugqwala. Izakhiwo ezingokomzimba nezamakhemikhali zezitini ezijwayelekile ze-corundum mullite ziyi-Al2O3>85%, Fe2O30.45%, i-porosity ebonakalayo engu-19%, amandla acindezelayo okushisa avamile angu-55MPa, izinga lokushisa lomthwalo elithambile ngaphezu kuka-1700 ℃, ukushintsha komugqa wokushisa (1600℃, 3h) -0.1 %.

Izitini eziphakeme ze-alumina

Okuqukethwe kwe-aluminium oxide kungu-48% kuya ku-85%, okungahlukaniswa okukhethekile, okuyisisekelo, okwesibili, okuphakeme, njll. Fe2O30.45%, i-porosity ebonakalayo ingu-19%, amandla okucindezela ekamelweni lokushisa lidlula i-55MPa, izinga lokushisa lokunciphisa umthwalo lidlula I-1700 ℃, ukushintsha kwezintambo zokushisa (1600 ℃, 3h) -0.1%, ukumelana nokushisa okushisayo (ukupholisa kwamanzi angu-1100 ℃) izikhathi ezingaphezu kuka-30. Umkhiqizo usebenzisa i-aluminiyamu ephezulu ye-alum clinker njengento eyinhloko eluhlaza, ubumba oluthambile kanye ne-pulp yemfucuza kanye noketshezi lwephepha njenge-ejenti ebophayo, futhi udaka olunezinhlayiya zezigaba eziningi lwakhiwe ngokubunjwa kokucindezela okuphezulu, ukomisa nokushisa okuphezulu kokushisa.