Izitini zokufaka ugesi ezithambile ze-aluminium ephezulu ziyimikhiqizo evimbela ukushisa eyenziwe nge-bauxite njengezinto ezisetshenziswayo eziyinhloko ezinokuqukethwe kwe-Al2O3 okungenani okungu-48%. Inqubo yayo yokukhiqiza iyindlela ye-foam, futhi ingaba yindlela yokwengeza ukusha. Izitini zokufaka ugesi ezithambile ze-aluminium ephezulu zingasetshenziswa ezingqimbeni zokufaka ugesi kanye nezingxenye ngaphandle kokuguguleka okunamandla kanye nokuguguleka kwezinto ezincibilikisiwe ezishisa kakhulu. Uma zithintana ngqo namalangabi, ngokuvamile izinga lokushisa lobuso lezitini zokufaka ugesi ezithambile ze-aluminium ephezulu akufanele libe ngaphezu kuka-1350 °C.
Izici zesitini sokufakelwa esilula se-aluminium ephezulu
Inezici zokumelana nokushisa okuphezulu, amandla aphezulu, ukuminyana okuphansi kwesisindo, ukubhoboka okuphezulu, ukuhanjiswa kokushisa okuphansi, ukumelana nokushisa okuphezulu, kanye nokusebenza okuhle kokuvikela ukushisa. Inganciphisa usayizi nesisindo semishini yokushisa, inciphise isikhathi sokushisa, iqinisekise izinga lokushisa elifanayo lesithando, futhi inciphise ukulahleka kokushisa. Ingonga amandla, yonge izinto zokwakha isithando futhi yandise impilo yesevisi yesithando.
Ngenxa yokuthi inezimbobo eziningi, ukuminyana okuphansi kanye nokusebenza kahle kokuvikela ukushisa,izitini zokuvimbela ezikhanyayo ze-aluminium ephezuluzisetshenziswa kabanzi njengezinto zokugcwalisa ukushisa esikhaleni esiphakathi kwezitini ezimelana nokushisa kanye nemizimba yesithando ngaphakathi kwamahhavini ahlukahlukene ezimboni ukunciphisa ukushabalaliswa kokushisa kwesithando nokuthola ukusebenza kahle kwamandla aphezulu. Indawo yokuncibilika kwe-anorthite ingu-1550°C. Inezici zobuningi obuphansi, i-coefficient encane yokwandisa ukushisa, ukuqhuba ukushisa okuphansi, kanye nokuba khona okuzinzile emkhathini onciphisayo. Ingathatha indawo yobumba, i-silicon, kanye nezinto ezimelana nokushisa ze-aluminium ephezulu, futhi inciphise ukonga amandla kanye nokunciphisa ukukhishwa.
Isikhathi sokuthunyelwe: Julayi-03-2023
