Iithusi le-aluminiumuchungechunge luyinkimbinkimbi kakhulu, futhi ezinye zethusi eziyinkimbinkimbi ze-aluminium ziqukethe izakhi ze-alloying yesithathu neyesine njenge-manganese, i-nickel, i-silicon, i-cobalt ne-arsenic.I-HAl66-6-3-2 kanye ne-HAl61-4-3-1, enezici eziningi ze-alloying, ziyi-alloys ezakhiwe izakhi eziyisithupha, kanti ezinye zazo ziyithusi le-aluminium elicutshungulwe eliyinkimbinkimbi elivela kuma-alloys okubunjwa okukhethekile.Ama-alloys ahlukene avame ukuba nezindawo zokuncibilika ezihlukene ngakho-ke adinga izinqubo ezihlukene zokuncibilika.
Okokuqala, ithusi le-aluminium lilula "i-foam" ngesikhathi senqubo yokuncibilikisa futhi lingcoliswa kalula yi-aluminium noma okunye okufakiwe kwe-metal oxide.Inqubo efanelekile yokuncibilika kufanele ihlanganise nezinyathelo ezithile zokuvimbela.Uma kukhona ifilimu ye-oxide ye-aluminium ebusweni bokuncibilika, ingavikela ukuncibilika ngezinga elithile, futhi akudingekile ukwengeza i-ejenti yokumboza ngesikhathi sokuncibilika.
Ukuhlaziywa kwethiyori: Uma wengeza i-zinc echibini elincibilikisiwe elivikelwe ifilimu ye-Al2O3, ukulahleka kokushintshashintsha kwe-zinc kungancishiswa.Eqinisweni, njengoba ukubiliswa kwe-zinc kungalimaza ifilimu ye-oxide, kuphela lapho kusetshenziswa i-flux efanelekile, okungukuthi, ukuncibilika kungavikelwa ngokuthembekile, ukulahlekelwa okuvuthayo kwe-zinc kungagwenywa ngokuphumelelayo noma kuncishiswe.I-Cryolite isiphenduke into ebaluleke kakhulu futhi ebalulekile ku-flux esetshenziselwa ukuncibilikisa ithusi le-aluminium.Ukuncibilika kwe-aluminium-yethusi akumele kushiswe ngokweqile ukuze kuvinjelwe ukuncibilika ku-oxidizing futhi kuhogele kakhulu.Uma okuqukethwe kwegesi ekuncibilikeni kuphezulu uma kuqhathaniswa, ungakhetha ukumbozwa kwe-flux ukuze ucwengisiswe, noma usebenzise ukucwenga igesi engasebenzi, okuhlanganisa ukuguquguquka kabusha nokuphinda ukucwenga ngaphambi kokuthela, nokusebenzisa imbiza yensimbi ukucindezela usawoti we-chloride ekuncibilikeni ukuze kuncibilike ukucwenga Indlela.Izakhi ze-alloy zephoyinti eliphezulu lokuncibilika njengensimbi, i-manganese, i-silicon, njll. equkethwe kuthusi eliyinkimbinkimbi ye-aluminium kufanele yengezwe ngendlela ye-Cu-Fe, i-Cu-Mn namanye ama-alloys aphakathi nendawo.
Ngokuvamile, i-charge esetshenzisiwe ngobuningi kanye nethusi kufanele kwengezwe esithandweni kuqala futhi kuncibilike, inkokhelo ehlukaniswe kahle ingangezwa ngokuqondile ekuncibilikeni, futhi i-zinc yengezwe ekugcineni ekupheleni kokuncibilika.Uma izinsimbi ezihlanzekile zisetshenziswa njengokushaja, kufanele zikhishwe nge-phosphorus ngemva kokuncibilika kwazo, kulandele i-manganese (Cu-Mn), insimbi (Cu-Fe), bese kuba i-aluminium, bese ekugcineni i-zinc.Ku-aluminium eyinkimbinkimbi ye-HAl66-6-3-2, okuqukethwe kwe-iron kufanele kulawulwe ku-2% ~ 3%, futhi okuqukethwe kwe-manganese kufanele kulawulwe cishe ku-3%.Uma kungenjalo, lapho okuqukethwe kwabo kuphezulu kakhulu, ezinye izici ze-alloy zingase zithinteke kabi.Ngenxa yokuminyana okuphansi kwe-aluminium, uma ukuncibilika kunganyakaziswanga kahle, kungase kubangele ukwakheka kwamakhemikhali okungalingani.Lapho kukhona ukuncibilika kwesikhashana esithandweni somlilo, ngokuvamile i-aluminium nengxenye yethusi kungafakwa kuqala, bese kwengezwa i-zinc ngemva kokuncibilika.Uma i-aluminium ingeziwe, ukushisa okukhulu kungakhululwa ngenxa yokuhlanganisa ithusi ne-aluminium.Inqubo ye-exothermic ingasetshenziswa ukusheshisa inqubo yokuncibilika, kodwa uma ukusebenza kungenziwanga kahle, ukusabela okunamandla kwe-exothermic kungase kubangele izinga lokushisa lendawo lechibi elincibilikisiwe libe phezulu kakhulu, okuholela ekuvuvukeni okunamandla kwe-zinc, futhi ezimeni ezinzima, amalangabi angase akhishwe esithandweni.Izinga lokushisa lokuncibilikisa i-HAl67-2.5 livamise ukuba ngu-1000~1100℃, kanti izinga lokushisa lokuncibilikisa i-HAl60-1-1, HAl59-3-2, HAl66-6-6-2 livamise ukuba ngu-1080~1120℃, futhi izinga lokushisa eliphansi kufanele lisetshenziswe ngangokunokwenzeka.Izinga lokushisa elincibilikayo.
Isikhathi sokuthumela: Jul-07-2022