Iubhedu aluminiyamUthotho luntsonkothile ngakumbi, kwaye ezinye ze-aluminiyam ezintsonkothileyo zobhedu ziqulathe izinto ze-alloying yesithathu neyesine ezifana ne-manganese, nickel, isilicon, i-cobalt kunye ne-arsenic.I-HAl66-6-3-2 kunye ne-HAl61-4-3-1, enezinto ezininzi zokudibanisa, ziyi-alloys ezenziwe ngezinto ezintandathu, kwaye ezinye zazo ziyi-complex-processed aluminiyam yobhedu oluvela kwi-alloys ekhethekileyo yokuphosa.Ii-alloys ezahlukeneyo zivame ukuba neepropati ezahlukeneyo zokunyibilika kwaye ngoko zifuna iinkqubo ezahlukeneyo zokunyibilika.
Okokuqala, i-aluminium yobhedu ilula "i-foam" ngexesha le-smelting kwaye ihlanjululwe lula yi-aluminium okanye enye i-metal oxide inclusions.Inkqubo yokunyibilikisa efanelekileyo kufuneka ibandakanye amanyathelo athile okuthintela.Ukuba kukho ifilimu ye-oxide ye-aluminium phezu kwendawo yokuncibilika, inokukhusela ukunyibilika kwinqanaba elithile, kwaye akuyimfuneko ukongeza i-agent egubungelayo ngexesha lokuncibilika.
Uhlalutyo lwethiyori: Xa ukongeza i-zinc kwi-pool etyhidiweyo ekhuselwe yifilimu ye-Al2O3, ukulahlekelwa kwe-volatilization ye-zinc kunokunciphisa.Enyanisweni, ekubeni ukubiliswa kwe-zinc kunokonakalisa ifilimu ye-oxide, kuphela xa kusetyenziswe i-flux efanelekileyo, oko kukuthi, ukunyibilika kunokukhuselwa ngokuthembekileyo, ilahleko evuthayo ye-zinc inokuphetshwa ngokufanelekileyo okanye iyancipha.I-Cryolite iye yaba yinto efunekayo kwaye ibalulekileyo kwi-flux esetyenziselwa ukunyibilikisa ubhedu lwe-aluminium.Ukunyibilika kwe-aluminiyam yobhedu akufuneki kutshiswe ngokugqithisileyo ukuthintela ukunyibilika kwi-oxidizing kunye nokuphefumla kakhulu.Ukuba umxholo werhasi ekunyibilikeni uphezulu kakhulu, ungakhetha ukugutyungelwa kogutyulo lokusulungekiswa, okanye usebenzise ukucocwa kwegesi engasebenziyo, kuquka ukuguquguquka kwakhona kunye nokuphinda ukucocwa phambi kokugalelwa, kunye nokusebenzisa intsimbi yentsimbi ukucinezela ityuwa yekloridi ekunyibilikeni ukuze kunyibilike ukunyibilika. Indlela.Izinto eziphezulu zokunyibilika kwe-alloy ezifana nentsimbi, i-manganese, i-silicon, njl. equlethwe kwi-aluminium eyinkimbinkimbi yobhedu kufuneka yongezwe ngendlela ye-Cu-Fe, i-Cu-Mn kunye nezinye i-alloys eziphakathi.
Ngokuqhelekileyo, intlawulo eninzi esetyenzisiweyo kunye nobhedu kufuneka yongezwe kwisithando somlilo kuqala kwaye inyibilike, intlawulo eyahlulwe kakuhle inokongezwa ngokuthe ngqo kwi-melted, kwaye i-zinc yongezwa ekugqibeleni ekupheleni kokunyibilika.Xa iintsimbi ezicocekileyo zisetyenziswa njengentlawulo, kufuneka zikhutshwe nge-phosphorus emva kokunyibilika kwazo, zilandelwe yi-manganese (Cu-Mn), isinyithi (Cu-Fe), emva koko i-aluminium, kwaye ekugqibeleni i-zinc.Kwi-aluminium eyinkimbinkimbi yobhedu i-HAl66-6-3-2, umxholo wesinyithi kufuneka ulawulwe kwi-2% ~ 3%, kwaye umxholo we-manganese kufuneka ulawulwe malunga ne-3%.Ngaphandle koko, xa umxholo wabo uphezulu kakhulu, ezinye iipropati ze-alloy zingachaphazeleka kakubi.Ngenxa yoxinano oluphantsi lwe-aluminium, ukuba inyibilika ayishukunyiswanga kakuhle, inokubangela ukwakheka kweekhemikhali ezingalinganiyo.Xa kukho ukunyibilika kwenguqu kwisithando somlilo, ngokubanzi i-aluminium kunye nenxalenye yobhedu inokongezwa kuqala, kwaye i-zinc inokongezwa emva kokuba inyibilike.Xa i-aluminium yongezwa, ubushushu obukhulu bunokukhutshwa ngenxa yokudibanisa ubhedu kunye ne-aluminium.Inkqubo ye-exothermic ingasetyenziselwa ukukhawulezisa inkqubo yokunyibilika, kodwa ukuba umsebenzi awenziwanga ngokufanelekileyo, ukusabela okukhulu kwe-exothermic kunokubangela ukuba ubushushu bendawo yedama elinyibilikisiweyo buphakame kakhulu, kubangele ukuguquguquka kobundlobongela kwe-zinc, kwaye kubi kakhulu. iimeko, amadangatye anokukhutshwa eziko.Ubushushu bokunyibilikisa i-HAl67-2.5 budla ngokuba yi-1000 ~ 1100℃, kwaye ubushushu bokunyibilikisa i-HAl60-1-1, HAl59-3-2, HAl66-6-6-2 budla ngokuba ngu-1080 ~ 1120℃, kwaye ubushushu obuphantsi kufuneka zisetyenziswe kangangoko.Ubushushu obunyibilikayo.
Ixesha lokuposa: Jul-07-2022