I-Aluminium inomjikelezo wokuphila ongakwazi ukufana nezinye izinsimbi ezimbalwa.Iyakwazi ukumelana nokugqwala futhi ingaphinda igaywe kabusha ngokuphindaphindiwe, idinga ingxenye encane yamandla asetshenziswa ukukhiqiza insimbi eyinhloko.
Lokhu kwenza i-aluminiyamu ibe yinto enhle kakhulu - ibunjwe kabusha futhi ihloselwe ukuhlangabezana nezidingo nezinselele zezikhathi nemikhiqizo ehlukene.
Aluminium value chain
1. Imayini ye-bauxite
Ukukhiqizwa kwe-aluminium kuqala nge-bauxite yezinto ezingavuthiwe, equkethe i-aluminium engu-15-25% futhi itholakala kakhulu ebhandeni elizungeze inkabazwe.Kukhona cishe amathani ayizigidi eziyizinkulungwane ezingama-29 ezinqolobane ezaziwayo ze-bauxite futhi ngezinga lamanje lokukhishwa, lezi zigodlo zizosithatha iminyaka engaphezu kweyi-100.Kukhona, nokho, izinsiza eziningi ezingakatholwa ezinganweba lokho kuye eminyakeni engama-250-340.
2. Ukucwengwa kwe-alumina
Kusetshenziswa inqubo ye-Bayer, i-alumina (i-aluminium oxide) ikhishwa ku-bauxite endaweni yokucwenga.I-alumina ibe isisetshenziswa ukukhiqiza insimbi eyinhloko ngesilinganiso esingu-2:1 (amathani ama-2 e-alumina = ithani elingu-1 le-aluminium).
3. Ukukhiqizwa kwe-aluminium okuyinhloko
I-athomu ye-aluminium ku-alumina iboshelwe kumoya-mpilo futhi idinga ukuphulwa nge-electrolysis ukuze kukhiqizwe insimbi ye-aluminium.Lokhu kwenziwa emigqeni emikhulu yokukhiqiza futhi kuwuhlelo oludinga amandla kagesi omningi.Ukusebenzisa amandla avuselelekayo kanye nokuthuthukisa ngokuqhubekayo izindlela zethu zokukhiqiza kuyindlela ebalulekile yokuhlangabezana nomgomo wethu wokungathathi hlangothi ku-carbon cycle kumbono womjikelezo wempilo ngo-2020.
4. Ukwenziwa kwe-Aluminium
IHydro ihlinzeka imakethe ngamathani angaphezu kwezigidi ezi-3 wemikhiqizo ye-aluminium casthouse minyaka yonke, okusenza sibe abahlinzeki abahamba phambili be-extrusion ingot, ingot yeshidi, ama-Foundry alloys kanye ne-aluminium ehlanzekile kakhulu ekhona emhlabeni jikelele.Ukusetshenziswa okuvame kakhulu kwe-aluminium eyinhloko ukukhipha, ukugoqa nokuphonsa:
4.1 I-Aluminium extruding
I-Extrusion ivumela ukubumba i-aluminium cishe kunoma iyiphi indlela ongayicabanga kusetshenziswa amaphrofayili enziwe ngomumo noma enziwe ngendlela efanele.
4.2 Aluminium rolling
I-aluminium foil oyisebenzisa ekhishini lakho iyisibonelo esihle somkhiqizo we-aluminium ogoqiwe.Uma kubhekwa ukusebenziseka kwayo okwedlulele, i-aluminiyamu ingasongwa isuka ku-60 cm iye ku-2 mm futhi iqhubeke icutshungulwa ibe yi-foil izacile ngo-0.006 mm futhi ingasangeneki ngokuphelele ekukhanyeni, iphunga nokunambitha.
4.3 I-Aluminium Casting
Ukwakha ingxubevange ngenye insimbi kushintsha izakhiwo ze-aluminium, kwengeze amandla, ukucwebezela kanye/noma i-ductility.Imikhiqizo yethu ye-casthouse, efana ne-extrusion ingots, i-ingots yeshidi, ama-alloys e-Foundry, ama-wire rods kanye ne-high purity aluminium, isetshenziselwa izimoto, ezokuthutha, izakhiwo, ukudlulisa ukushisa, i-electronics kanye nezindiza.
5. Ukugaywa kabusha
Ukugaywa kabusha kwe-aluminium kusebenzisa u-5% wamandla adingekayo ekukhiqizeni insimbi eyinhloko.Futhi, i-aluminium ayiwohloki ekugayweni kabusha futhi cishe u-75% wayo yonke i-aluminium eke yakhiqizwa isasetshenziswa.Umgomo wethu uwukukhula ngokushesha kunemakethe ekugayweni kabusha futhi sithathe isikhundla esiphambili engxenyeni yochungechunge lwenani le-aluminum, ukubuyisela amathani ayizigidi ezingu-1 e-aluminium engcolile ne-post-consumer scrap njalo ngonyaka.
Isikhathi sokuthumela: Jun-02-2022