Tšebeliso e khethehileng ea li-castings tsa alloy tsa aluminium sebakeng sa lifofane

Tšebeliso e khethehileng ea Aluminium motsoako oa ho lahlas ka sefofa-sebakeng

Ka ntshetsopele e potlakileng ya theknoloji ya difofane, li-castings tsa alloy tsa aluminium li sebelisoa ka ho eketsehileng tlhahisong ea lifofa-sebakeng. Li-alloy tsa aluminium li fetohile thepa ea bohlokoa tlhahisong ea lifofa-sebakeng ka lebaka la thepa ea tsona e ikhethang ea 'mele le ea mechini. Sengoloa sena se tla tšohla ka botlalo ts'ebeliso e tobileng ea li-cast tsa alloy tsa aluminium sefofa-sebakeng, hammoho le melemo le litaelo tsa nts'etsopele ea nakong e tlang tseo li li tlisang.

1. Melemo ea ho lahla alloy ea aluminium sebakeng sa lifofane

(I) E bobebe ebile e matla haholo

Motsoako oa aluminium ke thepa ea tšepe e bobebe le e matla haholo. Matla a eona a khoheli a ka bang karolo ea boraro feela ea tšepe, empa matla a eona a itseng a ka ba 35% ho feta a tšepe e tloaelehileng ea carbon. E na le thepa e ntle ea mechini e kang matla a ho thapolla le matla a tlhahiso. Tšebeliso ea metsoako ea aluminium e ka fokotsa boima ba sepakapaka haholo le ho ntlafatsa bokhoni ba mojaro le ts'ebetso ea ho fofa. Mohlala, 44% ea boima ba fuselage ea sefofane sa bapalami sa Airbus sa A380 e entsoe ka metsoako ea aluminium.

(II) Khanyetso e ntle ea ts'enyeho
Di-alloy tsa aluminium di na le kganyetso e ntle ya mafome mme di mamella hantle di-acid le di-alkali tse ngata. Sena se bohlokwa haholo bakeng sa difofane tsa sepakapaka tse sebetsang moyeng nako e telele. Dikarolo tsa alloy tsa aluminium di ka sebediswa ho etsa khetla e ka ntle ya sefofane, hammoho le masakaneng le dikhetla tsa disebediswa tse fapaneng tsa sefofane.
(III) Ho tsamaisa mocheso ka matla a phahameng
Ho tsamaisa mocheso ha motsoako oa aluminium ho molemo haholo, e leng se etsang hore ho khonehe ho hlahisa likarolo tse ling tse hlokang katleho e phahameng ea phetisetso ea mocheso, joalo ka lisinki tsa mocheso, li-cooler le liphaephe tsa phetisetso ea mocheso lienjineng tsa lifofane.
(IV) Ho bonolo ho sebetsana le ho bopa
Motsoako oa aluminium o na le polasetiki e ntle le bokhoni bo botle ba ho sebetsa, e leng se etsang hore ho be bonolo ho etsoa ka likarolo tsa libopeho le boholo bo fapaneng. Ho phaella moo, motsoako oa aluminium o ka sebetsoa ka mekhoa e fapaneng ea ts'ebetso, joalo ka ho ntša, ho otlolla, ho hula ka serame, ho tjheseletsa, ho lahla le mekhoa e meng.

2. Tšebeliso e khethehileng ea li-castings tsa alloy tsa aluminium sebakeng sa lifofane
(I) Likarolo tsa enjene
Aluminium Ho nepahala ha motsoako Ho lahla ho sebediswa haholo tlhahisong ya dikarolo tsa enjene, tse kang mahare a turbine, di-vane tsa tataiso ya ho kenya le di-disk tsa turbine. Ts'ebetso ya ho lahla ka nepo e ka hlahisa dikarolo tsa dibopeho tse rarahaneng mme ya netefatsa ho nepahala ha tsona ka boholo le boleng ba bokahodimo, ka hona ya ntlafatsa tshebetso le bokgoni ba enjene. Mohlala, disk ya turbine ke karolo ya bohlokwa e lokelang ho ba le matla a maholo le boima bo bobebe hobane e hloka ho mamella mocheso o phahameng haholo le kgatello. Ho lahla die tsa alloy die tsa aluminium ke ts'ebetso e ntle ya tlhahiso bakeng sa ho hlahisa di-disk tsa turbine tsa boleng bo hodimo, tse bopehileng jwalo ka tse rarahaneng.
(II) Likarolo tsa sebopeho sa lifofane
Theknoloji ea ho lahla ka ho nepahala ha alloy ea aluminium e ka boela ea sebelisoa ho hlahisa likarolo tsa sebopeho sa lifofane, tse kang lihokelo tsa fuselage, mehaho ea tšehetso le litanka tsa mafura. Ho lahla ka nepo ho ka fokotsa boima ba likarolo, ho ntlafatsa matla le ho tiea ha sebopeho, le ho fa sefofane ts'ebetso e betere ea ho fofa le ts'ebeliso e ntle ea mafura. Mohlala, 44% ea boima ba fuselage ea sefofane sa bapalami sa Airbus sa A380 e entsoe ka alloy ea aluminium.
(III) Lisebelisoa tsa lifofane
Ho lahla ka nepo alloy ea aluminium le hona ho bapala karolo ea bohlokoa tlhahisong ea lisebelisoa tsa lifofane. Mohlala, tlhahiso ea li-thruster tsa sepakapaka, likarolo tsa ho tsamaea le lisebelisoa tsa ho lula. Ts'ebetso ea ho lahla ka nepo e ka netefatsa ho nepahala le ho tšepahala ha lisebelisoa tsena le ho fihlela litlhoko tse tiileng tsa maeto a sepakapaka.
(IV) Likarolo tsa sathelaete
Li-die castings tsa aluminum alloy le tsona li sebelisitsoe haholo tlhahisong ea li-satellite tsa lifofane le likarolo tsa rokete. Mohlala, khetla e ka ntle ea sathelaete hangata e entsoe ka li-die castings tsa aluminum alloy tse matla haholo. Ho phaella moo, li-thruster le lisebelisoa tsa ho tsamaea le tsona li hloka ho sebelisa li-die castings tsa aluminum alloy ho netefatsa hore li bobebe ebile li tšoarella.

3. Maemo a tshebediso ya ho lahla alloy ya aluminium sebakeng sa difofane
(I) Theknoloji ea tlhahiso le lihlahisoa tsa likarolo tsa bohlokoa tsa letoto la li-alloy tse bobebe bakeng sa sefofa-sebakeng
Morero ona o entse lipatlisiso mabapi le theknoloji ea tlhahiso ea matla a holimo haholo le sekoahelo sa mohatla sa alloy ea aluminium ea boleng bo holimo le khetla ea khoune e tlase, kamore ea alloy ea aluminium e nang le mabota a masesaane e nang le mabota a masesaane le tanka ea mafura ea alloy ea aluminium e nang le mabota a mangata a kopaneng, le kamore ea alloy ea magnesium e nang le mabota a maholo bakeng sa likarolo tsa bohlokoa tse kholo le tse rarahaneng tsa letoto la alloy ea aluminium-magnesium e nang le matla a maholo bakeng sa sepakapaka. Letoto la likarolo tse ncha tsa ho lahla alloy ea aluminium-magnesium li se li ntlafalitsoe, ho kenyeletsoa sekoahelo sa mohatla sa alloy ea aluminium, khetla ea khoune e tlase, kamore e nang le mabota a masesaane e nang le mabota a mangata a masesaane, tanka ea mafura e kopaneng, tanka ea mafura e kopaneng e fapaneng, servo cabin, mekhahlelo ea II-III, karolo ea mohatla ea II, le kamore ea bobeli ea alloy ea magnesium le khetla ea bohlano ea cabin. Theknoloji ena e ntlafalitse boemo ba theknoloji ea tlhahiso ea ho lahla ea boleng bo holimo naheng ea heso 'me e khothalelitse tsoelo-pele ea theknoloji indastering.
(II) Tsoelo-pele ea tsoelo-pele le ts'ebeliso ea indasteri ea theknoloji ea ho lahla litšepe tsa aluminium alloy
Lilemong tsa morao tjena, theknoloji ea ho lahla die-casting ea aluminum alloy ea lifofane e entse letoto la lintlafatso tse kholo tsa theknoloji, e fana ka tharollo e ncha e bobebe bakeng sa tšimo ea lifofane. Ha e bapisoa le lits'ebetso tsa setso tsa ho lahla, theknoloji ea sejoale-joale ea ho lahla die-casting ea aluminum alloy ea lifofane e na le melemo e latelang ea bohlokoa: lintlafatso thepa ea thepa, ka matla a ho tensile a fihlang ho 450-550MPa, ho lelefala ho eketsehile ho fihla ho 8-12%, bophelo ba mokhathala bo eketsehile ka makhetlo a 3-5, le anisotropy e fokotsehile ho ea ka tlase ho 10%; boqapi ba ts'ebetso, ho sebelisoa theknoloji ea ho lahla die-casting ea vacuum e nang le khatello e phahameng (porosity