Amanothi ngeplizwa yesiliva ye-aluminium imishini.

Ukugcwaliswa kwesiliva kwezingxenye ze-aluminium kunzima kakhulu kunalezo ezingxenyeni ezijwayelekile zethusi, futhi inqubo iyinkimbinkimbi. Isizathu esiyinhloko ukuthi ukusebenza kwezingxenye zemishini ye-aluminium kuhlukile kwenye izinsimbi. I-Aluminium ingeyakwensimbi ye-Amphoteric futhi iphendula nge-acid nesisekelo. Uma ukwenziwa sengathi kungalungile, kuzoholela ekugcekeni komhlaba. Ngaphezu kwalokho, izingxenye zemishini ye-aluminium kulula ukukhiqiza ifilimu e-Ongi kuphela emoyeni noma ngesixazululo. Uma ifilimu ye-oxide ingasuswa, kuzothinta amandla okubopha ama-coating.

Isihluthulelo seplizwa yesiliva ye-aluminium machan tings ukunamathela phakathi kokuhlanganiswa kanye nensimbi eyisisekelo. Ngakho-ke, kufanele kwamukelwe ukwelashwa okukhethekile ukuthola ukuhlanganiswa kwesiliva ngamandla amahle okubopha e-aluminium substrate. Indlela yokucwilisa uZinc ingaxazulula inkinga enzima.

Umgomo wokucwilisa i-zinc ukufaka esikhundleni sesendlalelo esincanyana se-zinc ngokusebenzisa umgomo wokuthi i-aluminium imbi kakhulu futhi kulula ukuyithola kwikhambi le-electrolyte. Isendlalelo se-zinc ihlelwe phakathi kwensimbi eyisisekelo kanye nenhlanganisela yesiliva ukuthuthukisa amandla okubopha phakathi kokuhlanganiswa kanye nensimbi eyisisekelo.

Enqubweni yokugcwala kwesiliva ye-aluminium machan tinced, kufanele sinake amaphuzu alandelayo:

1) Noma ngabe kuyageza noma ukugeza, okuqukethwe yi-naoh akufanele kube phezulu kakhulu, futhi isikhathi akufanele sibe yinde kakhulu, ukuze sigweme ukugqwala komhlaba.

2) Inqubo yokucwilisa i-zinc iyisihluthulelo seplifiti egculisayo. I-zinc izodonswa amahlandla amabili, ngoba uZinc uryer uyi-coarser ngemuva kwe-dip yokuqala. Nge-1: 1 HN0, ngemuva kokususwa kwayo, yenza isibili le-zinc. Ngemuva kwezikhathi zesibili zeZinc Dipping, kuphela lapho ungqimba lwe-zinc enokuvumelana okuhle nokuqina okuhle kwe-matrix.

3) Ngesikhathi senqubo ye-zinc ecwilisa, kuyadingeka ukunaka i-oscillation futhi uvikele izingxenye kusuka komunye nomunye, okuholela engxenyeni yendawo yamahhala ye-zinc.

4) Uma uthola ikhwalithi ye-zinc yokucwilisa ayilungile, nge-1: 1 HN0 isusiwe, bese iphinda ifakwe ku-zinc.

5) Ngemuva kokuthi i-zinc idonsa, izingxenye zingena kwisixazululo se-cyanide zethusi se-clanide, kufanele ziphile emkhombeni, futhi zisebenzisa umthelela omkhulu wamanje we-2min, bese ubuyela kokujwayelekile kwamanje. Ku-electroplating, uma ingaphezulu lengxenye litholakala limnyama futhi limnyama, izingxenye zingasuswa zibe sezishiswe ngemuva kokwelashwa.

6) Ngemuva kokuthi izingxenye ze-aluminium zifakwe nge-zethusi, zingenziwa ngokuya ngenqubo evamile yeplifinti yesiliva yezingxenye zethusi.