Izakhi zenkomba ezivamile ze-aluminium ehlanganisiwe emhlophe yi-aluminium, i-sodium, i-potassium, i-silicon, insimbi nokunye, okuthandwa kakhulu futhi okuxoxwa ngakho kabanzi kufanele kube inani lokuqukethwe kwe-sodium, okungabonakala ukuthi okuqukethwe kwe-sodium kunomthelela omkhulu. ngekhwalithi ye-alumina emhlophe ehlanganisiwe.Njengamanje, i-alumina emhlophe ehlanganisiwe emakethe ihlukaniswa ngokuqukethwe kwe-sodium, ngokuqukethwe kwe-sodium ku-0.35%, okuqukethwe kwe-sodium ku-0.3%, okuqukethwe kwe-sodium ku-0.2% nokuqukethwe kwe-sodium ku-0.1% wamabanga amaningana, izicelo ezahlukene zomkhiqizo zizoba nezidingo ezahlukene. ngokuqukethwe kwe-sodium, ngakho-ke ngokusho kokuqukethwe okuhlukile kwe-sodium, ihlukaniswa ne-alumina evamile emhlophe ehlanganisiwe,i-aluminium ephansi ye-sodium emhlophe ehlanganisiwekanye ne-micro-sodium white fused alumina, njll.
I-sodium ku-aluminium ehlanganisiwe emhlophe itholakala ikakhulukazi ku-sodium oxide etholakala ku-alumina yezimboni.I-sodium oxide isetshenziswa enqubweni yokuncibilikisa i-alumina ehlanganisiwe emhlophe ukuze kukhiqizwe i-alumina ye-sodium ephezulu ukuze kuncishiswe ukukhiqizwa kwe-alumina (α-Al2O3) ku-alumina ehlanganisiwe emhlophe, okuholela ekunciphiseni kokuqukethwe kwe-aluminium futhi ngaleyo ndlela kuthinte ukusebenza kwe-alumina ehlanganisiwe emhlophe.Ukulawulwa kwe-sodium ephansi ku-alumina ehlanganisiwe emhlophe kwandisa isikhathi sokuncibilika, kodwa ukwanda okuwumphumela wokusetshenziswa kukagesi kwandisa izindleko zokukhiqiza zokuncibilikisa;noma ukusetshenziswa okuqondile kwe-alumina yezimboni ze-sodium ephansi, kodwa intengo yemakethe ye-alumina yezimboni ye-sodium ephansi nayo ibiza kakhulu.
I-XINLI ikhiqiza i-micro-sodiumi-alumina emhlophe ehlanganisiweenokuqukethwe kwe-sodium oxide engu-0.1% noma ngaphansi, elungele ukucubungula insimbi ye-alloy, insimbi eqinile, insimbi ephezulu ye-carbon nezinye izinto ezinobulukhuni obuphezulu namandla aqinile, futhi inezici ezinhle kakhulu njengokuqina okuphezulu, ubukhali obuphezulu kanye ne-anti- ikhono elivuthayo.