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Mokhoa oa ho ntlafatsa khanyetso ea ts'enyeho ea li-castings tsa alloy tsa aluminium
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Mokhoa oa ho ntlafatsa khanyetso ea ts'enyeho ea li-castings tsa alloy tsa aluminium

2025-07-23

Mokhoa oa ho ntlafatsa khanyetso ea ts'enyeho ea Aluminium motsoako oa ho lahlas

'Marakeng oa indasteri oa kajeno oa lefats'e ka bophara, li-castings tsa alloy tsa aluminium li sebelisoa haholo masimong a mangata a kang likoloi, lifofane, tlhahiso ea mechini le mekhabiso ea meralo ka lebaka la boima ba tsona bo bobebe, matla a phahameng, conductivity e ntle ea motlakase le mocheso, le ts'ebetso e bonolo. Leha ho le joalo, khanyetso ea ho bola ea li-castings tsa alloy tsa aluminium esale e le e 'ngoe ea lintlha tsa bohlokoa tse amang bophelo ba tšebeletso le ts'ebetso ea tsona. Bakeng sa bareki ba machabeng ba rekisang ka bongata, ho bohlokoa ho khetha li-castings tsa alloy tsa aluminium tse nang le khanyetso e ntle ea mafome.

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1. Bohlokoa ba ho hanyetsa ho bola ha di-castings tsa alloy tsa aluminium
Li-castings tsa alloy tsa aluminium li angoa ke mabaka a fapaneng a tikoloho nakong ea ts'ebeliso, joalo ka mouoane oa metsi, oksijene, lintho tse nang le asiti kapa alkaline, le spray ea letsoai sepakapakeng. Mabaka ana a ka baka liketso tsa lik'hemik'hale holim'a li-alloy tsa aluminium, ka hona a baka mafome. Mafome ha a fokotse feela litšobotsi tsa mechini tsa li-castings tsa alloy tsa aluminium, empa a ka boela a baka ho hloleha ha sebopeho, a khutsufatsa bophelo ba tsona ba ts'ebeletso, le ho eketsa litšenyehelo tsa tlhokomelo. Ka hona, ho ntlafatsa ho hanyetsa mafome ha li-castings tsa alloy tsa aluminium ho bohlokoa haholo ho netefatseng boleng ba sehlahisoa, ho ntlafatsa tlholisano ea sehlahisoa, le ho fihlela litlhoko tse tiileng tsa 'maraka oa machaba.

2. Mabaka a amang ho hanyetsa ho ts'enyeha ha li-castings tsa alloy tsa aluminium
(I) Sebopeho sa motsoako
Sebopeho sa motsoako oa aluminium se na le tšusumetso e tobileng ho haneleng ha oona mafome. Likarolo tse fapaneng tsa motsoako li tla fetola thepa ea electrochemical le sebopeho sa microchemical sa motsoako oa aluminium, ka hona li ama ho haneleng ha oona mafome. Mohlala, ho eketsa palo e loketseng ea koporo ho ka ntlafatsa matla a motsoako oa aluminium, empa koporo e feteletseng ho tla etsa hore motsoako oa aluminium o be kotsing ea mafome habonolo tikolohong e mongobo. Ho eketsa likarolo tse kang magnesium le zinc ho ka ntlafatsa ho haneleng mafome ha motsoako oa aluminium ho isa bohōleng bo itseng, empa ka nako e ts'oanang, litaba tsa tsona li hloka ho laoloa ho qoba litlamorao tse mpe.
(II) Sebopeho se senyenyane
Sebopeho se senyenyane sa motsoako oa aluminium, joalo ka boholo ba lijo-thollo le kabo ea mekhahlelo, le sona se bapala karolo ea bohlokoa ho haneleng ha sona ho bola. Sebopeho se setle sa lijo-thollo hangata se na le khanyetso e phahameng ea ho bola hobane meeli ea lijo-thollo e ka sitisa ho hasana ha mecha ea phatlalatso e bola. Ho feta moo, kabo ea mekhahlelo e ts'oanang e boetse e thusa ho ntlafatsa khanyetso e akaretsang ea ho bola ea motsoako oa aluminium.
(III) Kalafo ea bokaholimo
Kalafo ea bokaholimo ba li-castings tsa alloy ea aluminium ke sehokelo sa bohlokoa ho ntlafatseng ho hanyetsa ha tsona ho bola. Mekhoa e tloaelehileng ea kalafo ea bokaholimo e kenyelletsa anodizing, kalafo ea filimi ea phetoho ea lik'hemik'hale, tšireletso ea ho roala, jj. Mekhoa ena e ka etsa filimi e sireletsang holim'a alloy ea aluminium, ea thibela ka katleho ho kopana pakeng tsa mecha ea phatlalatso e bola le substrate, ka hona ea ntlafatsa ho hanyetsa ho bola.
(IV) Mabaka a tikoloho
Maemo a tikoloho ao ho ona ho nang le di-cast tsa alloy tsa aluminium a nang le tshusumetso e kgolo kganyetsong ya tsona ya ho bola. Di-alloy tsa aluminium di kotsing e kgolo ya ho bola dibakeng tse mongobo, tse nang le asiti kapa tse nang le alkaline. Ka hona, ha ho ralwa le ho kgethwa di-cast tsa alloy tsa aluminium, ho hlokahala hore ho nahannwe ka botlalo ka tikoloho ya tsona ya tshebediso le ho nka mehato e tsamaellanang ya tshireletso.

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3. Mekhoa ea ho ntlafatsa ho hanyetsa ho ts'enyeha ha li-castings tsa alloy tsa aluminium
(I) Ho ntlafatsa sebopeho sa motsoako
Ka ho fetola sebopeho sa di-alloy tsa aluminium ka tsela e utlwahalang, ho hanyetsa ha yona ho bola ho ka ntlafala haholo. Mohlala, ho eketsa dikahare tsa dielemente tse kang magnesium, zinki le chromium, ha ka nako e ts'oanang ho laola dikahare tsa dielemente tse kang koporo le tshepe, ho ka ntlafatsa ho hanyetsa ha yona ho bola ha ka katleho ha ka nako e ts'oanang ho netefatsa thepa ya mechini ya di-alloy tsa aluminium. Ho feta moo, sebopeho se senyenyane sa di-alloy tsa aluminium se ka ntlafatswa ka ho eketsa dielemente tse sa tlwaelehang tsa lefatshe, jj., ho ntlafatsa ho hanyetsa ha tsona ho bola.
(II) Theknoloji ea kalafo ea bokaholimo
Ho tlotsa oli
Ho tlotsa oli ke mokhoa o tloaelehileng oa ho phekola bokaholimo bakeng sa li-alloy tsa aluminium. E etsa filimi ea oxide holim'a li-alloy tsa aluminium ka electrolysis. Filimi ena ea oxide e na le khanyetso e ntle ea ho bola le khanyetso ea ho tsofala. Botenya le ho thatafala ha filimi e tlotsitsoeng li ka fetoloa ka ho laola liparamente tsa ts'ebetso ea oxidation ho fihlela litlhoko tse fapaneng tsa ts'ebeliso.
Kalafo ea filimi ea phetoho ea lik'hemik'hale
Kalafo ea filimi ea phetoho ea lik'hemik'hale ke ho etsa filimi e sireletsang holim'a motsoako oa aluminium ka karabelo ea lik'hemik'hale, e ka thibelang tlhaselo ea mecha ea litaba e senyang ka katleho. Mekhoa e tloaelehileng ea kalafo ea filimi ea phetoho ea lik'hemik'hale e kenyelletsa kalafo ea chromate, kalafo ea phosphate, jj. Mekhoa ena ea kalafo e bonolo ho e sebelisa, e theko e tlase, 'me e loketse tlhahiso e kholo.
Tšireletso ea ho roala
Tšireletso ea ho koahela ke ho ntlafatsa ho hanyetsa ho bola ha motsoako oa aluminium ka ho sebelisa lesela le sireletsang holim'a motsoako oa aluminium. Seaparo e ka ba lesela la tlhaho, joalo ka pente, polasetiki, jj., kapa lesela le sa tloaelehang, joalo ka lesela la ceramic, jj. Tšireletso ea ho koahela e ke ke ea ntlafatsa feela ho hanyetsa ho bola ha motsoako oa aluminium, empa hape e ntlafatsa ponahalo ea eona le ho hanyetsa ho tsofala.
(III) Ntlafatso ea ts'ebetso
Ho qhibiliha le Mokhoa oa ho Lahla
Mokhoa oa ho qhibilihisa le ho lahla o na le tšusumetso ea bohlokoa holim'a sebopeho sa micro le litšobotsi tsa alloy ea aluminium. Ka ho ntlafatsa mokhoa oa ho qhibilihisa le ho lahla, joalo ka ho laola mocheso oa ho qhibiliha le sekhahla sa ho pholisa, ho ka lokisoa li-cast tsa alloy ea aluminium tse nang le sebopeho sa micro le litšobotsi tse ntle haholo. Mohlala, tšebeliso ea theknoloji ea ho pholisa ka potlako e ka ntlafatsa lithollo le ho ntlafatsa ho hanyetsa ho bola ha alloy ea aluminium.
Kalafo ea Mocheso ts'ebetso
Mokhoa oa ho phekola mocheso o ka ntlafatsa sebopeho sa microstructure le thepa ea mechine ea lialloy tsa aluminium, ka hona ho ntlafatsa ho hanyetsa ha tsona mafome. Mohlala, ka kalafo ea tharollo le kalafo ea botsofali, matla le ho thatafala ha lialloy tsa aluminium li ka ntlafatsoa, ​​'me ho hanyetsa ha tsona mafome le hona ho ka ntlafatsoa.
(IV) Tšireletso ea tikoloho
Nakong ea ts'ebeliso, tšireletso e loketseng ea tikoloho ea li-cast tsa alloy tsa aluminium le eona ke mohato oa bohlokoa oa ho ntlafatsa ho hanyetsa ha tsona mafome. Mohlala, tikolohong e mongobo, sephutheloana se koetsoeng kapa sekoahelo se sa keneleng mongobo se ka sebelisoa ho thibela li-cast tsa alloy tsa aluminium hore li se ke tsa koloba; tikolohong e nang le asiti kapa alkaline, sekontiri se thibelang kapa sekoahelo se sireletsang se ka sebelisoa ho fokotsa tšusumetso ea mecha ea litaba e senyang holim'a li-cast tsa alloy tsa aluminium.