Sesebelisoa sa Magnesium ke Eng?

Nako ea ho Hatisa: 04 / 02 2021 Mongoli: Mohlophisi oa Setsi Etela: 13022

Ha hajoale e le sesebelisoa sa tšepe se bobebe ka ho fetesisa sa tšepe, motsoako oa magnesium o na le litšobotsi tsa matla a khethehileng le ho tenyetseha ho itseng, ho ba le mokelikeli o bonolo, litšila tse ntle le litšireletso tsa motlakase, le ho nchafatsoa hape. E tsejoa e le "lisebelisoa tsa boenjiniere bo botala ba lekholo la bo21 la lilemo". . Ka nts'etsopele e potlakileng ea indasteri ea tlhahiso, lisebelisoa tsa setso tsa tšepe li tla fela, tse hlokang nts'etsopele ea lisebelisoa tse ncha ho fihlela litlhoko tsa sechaba.

Ka nako e ts'oanang, ts'ebetsong ea kajeno e ntseng e eketseha ea ts'ireletso ea tikoloho le mekhoa e bobebe, li-alloys tsa magnesium li na le boleng ba ts'ebeliso ea bohlokoa haholo le tebello e pharaletseng ea ts'ebeliso likarolong tse ngata tse kang lipalangoang, lihlahisoa tsa 3C, sefofane le tšireletso ka lebaka la litšobotsi tsa tsona. Lilemong tsa morao tjena, ka ntlafatso e tsoelang pele ea kananelo ea indasteri ea lisebelisoa tsa alloy magnesium (ho kenyelletsa az80a motsoako oa magnesium joalo-joalo,), boholo ba ts'ebeliso ea eona bo ntse bo atolosoa khafetsa. Libakeng tsa batho ka bomong, haholo-holo lebaleng la lipalangoang, ka lebaka la litlhoko tse tsoelang pele bakeng sa boima bo bobebe, tšireletso ea tikoloho, le ho boloka matla a likoloi, lithuthuthu, joalo-joalo.

Matsatsing ana, lihlahisoa tse entsoeng ka lits'epe tsa tšepe tsa magnesium li hasane liindastering tse fapaneng, mme tlhoko ea lits'epe tsa magnesium e ntse e eketseha selemo le selemo. Hoa tsebahala hore motsoako oa magnesium o tla fetoha sesebelisoa se seng sa bohlokoa sa tšepe kamora lisebelisoa tsa moetlo (aluminium alloy, tšepe, jj.) Haufinyane. Naha ea heso ke naha e kholo indastering ea magnesium, e nang le lisebelisoa tse ngata tsa magnesium, le mehloli ea tšepe ea magnesium, tlhahiso ea mantlha ea magnesium, matla a tlhahiso le boemo ba kantle ho naha lefatšeng. Lilemong tsa morao tjena, naha ea heso e fihletse katleho e ngata ts'ebelisong le nts'etsopele ea theknoloji ea ts'ebetso ea magnesium alloy e tebileng, lipatlisiso tse phahameng tsa ts'ebetso ea magnesium le nts'etsopele ea lisebelisoa tse amanang. Lethathamo le felletseng la liindasteri le thehiloe ho tloha ha ho qaloa thepa e tala ho ea ho ts'ebetso e tebileng. Leha ho le joalo, ho ntse ho na le lekhalo le itseng ha le bapisoa le matla a indasteri ea magnesium linaheng tse tsoetseng pele lefats'eng, tse bonahalang haholo ts'ebetsong ea lits'epe tse kopantsoeng tsa magnesium.

Hajoale, maemo a amehang le likarolo tsa ts'ebeliso ea lits'epe tse kopantsoeng tsa magnesium li thibetsoe, 'me kaofela e ntse e le sethaleng sa liteko. Ho a hlokahala ho eketsa boiteko ba lipatlisiso le nts'etsopele ho rarolla mathata a lits'epe tse kopantsoeng tsa magnesium ho tapa, ho betsa, ho tjheseletsa le lits'ebetso tse ling. Li-alloys tsa Magnesium li na le thepa e ntle ea mokelikeli. Hona joale, theknoloji-shoa-foromeletsoeng theknoloji e haholo-holo sebelisoa ho proizvodnje likarolo magnesium motsoako likarolo. Leha ho le joalo, maemong a mang, ka lebaka la litlhoko tsa maemo a ho sebetsa kapa lintlha tsa ts'ebetso, ho hlokahala hore ho kenngoe ts'ebetsong e akaretsang kapa e sa arohaneng ea thermoplastic deformation ea magnesium alloy die-castings, empa lits'epe tse ngata tsa magnesium li na le sebopeho se mahlakore a tšeletseng se nang le methapo e seng mekae. mocheso oa kamore. Ka hona, lits'epe tse kopantsoeng ka magnesium haesale li nkuoa e le lisebelisoa tsa tšepe tse thata ho sebetsoa ka polasetiki, tse thibelang ts'ebeliso ea li-castings tsa magnesium alloy ho fihlela boemong bo itseng.

Ka nako e ts'oanang, thepa ea mochini oa likarolo tsa magnesium alloy die-casting ha e ntle, empa ka mor'a ho sebetsa ka polasetiki ea die-cast magnesium alloy, mohaho o ka etsoa o teteaneng, e le hore thepa ea mochine oa workpiece e ka ntlafatsoa. Ka hona, molemong oa ho nts'etsapele theknoloji ea ho sebetsa ea polasetiki ea motsoako oa magnesium, senya botlolo ea botekgeniki ea sebopeho sa polasetiki sa magnesium, ho ntlafatsa ts'ebetso ea lihlahisoa tsa alloy ea magnesium, ho holisa mefuta e mengata ea kopo. motsoako oa tšepe oa magnesium, ho khothaletsa nts'etsopele ea moruo oa indasteri ea alloy ea magnesium, le ho ntlafatsa deformation ea polasetiki ea alloy ea die-cast magnesium. Patlisiso ea boitšoaro e na le boleng ba bohlokoa ba thuto le moruo.

Magnesium ke karolo ea lik'hemik'hale ea sehlopha sa bobeli se ka sehloohong le nako ea boraro ea tafole ea nakoana. Lekhoakhoa la eona la kristale ke mohaho o nang le mahlakore a mabeli a haufi. Tlhophiso ea elektronike ea liathomo tsa eona tse sa lefelloeng ke 1s 2 2s 2 2p 6 3s 2, ka hona valence ea magnesium hangata e fapane (Mg 2+). Metal magnesium e bobebe haholo, 'me boima ba eona bo bobebe ka karolo ea 1/3 ho feta aluminium. Magnesiamo hape ke motlakase o tsamaisang motlakase hantle, o tsamaisa mocheso, joalo-joalo, 'mele ea eona le lik'hemik'hale li bonts'oa ho Tafole 1.1.

Nature	latela boleng ba	Nature	Mocheso / K.	latela boleng ba
Nomoro ea Atomic	12	segokanyipalo	298	1.74g / cm 3
Boima ba Atomic	24.304	Resistivity	293	4.46 × 10 -8 Ω · limithara
Buka ea Atomic	13.99cm 3 / mol	Polycrystalline magnesium modulus ea elasticity	298	45GPa
Atomic radius	0.15nm	Sekhahla sa Polycrystalline magnesium Poisson	298	0.35
Radiase ea Ionic	0.074nm	Mokhahlelo oa katoloso	800	30.0 × 10 -6 / K
Mocheso oa Melting Point	923 0.5 ± XNUMX） K		300	EA J / (mol · K)
Mocheso oa ntlha ea ho belisoa	1363K		800	31.05J / (mol · K)
Mocheso bokgoni	-2.38V	Mocheso bokgoni	300	156 W / (m · K)
Ho khanna ho chesang	0.453g / A · h	Ho khanna ho chesang	800	146W / (m · K)

Likahare tsa magnesium mobung oa lefatše li ruile haholo, 'me boholo ba lisebelisoa tse tala li tsoa ho monkong oa metsi a leoatle, ka hona lisebelisoa tsa magnesium li tsitsitse ebile li lekane. Ts'ebetso e pharalletseng ea magnesium ea tšepe e hloekileng e futsanehile ebile e ke ke ea fihlela litlhoko tsa likopo tse ngata. Leha ho le joalo, ho eketsa likarolo tse itseng ho magnesium kamora ho alloying kalafo ho tla ntlafatsa ts'ebetso ea eona e felletseng, mme ts'ebetso ea eona e tla feta ea lits'epe tse sebelisoang haholo tsa aluminium le meaho ea tšepe. Lisebelisoa, e le hore lits'epe tse kopantsoeng tsa magnesium butle-butle li amoheloe le ho sebelisoa indastering. Sena ha se arohane le melemo ea motsoako oa magnesium ka boeona. Ha ho bapisoa le thepa e 'ngoe ea sebopeho, motsoako oa magnesium o na le melemo e latelang:

Boima bo bobebe: Motsoako oa Magnesium hajoale ke sesebelisoa sa tšepe se bobebe ka ho fetesisa, 'me boholo ba eona ke 1.75 ~ 1.85g / cm 3, e ka bang 1/4 ea tšepe le 2/3 ea alloy e tloaelehileng ea aluminium.
High tshebetso itseng: Ha ho bapisoa le thepa e 'ngoe e tloaelehileng, matla a itseng le ho tenyetseha itseng ea motsoako magnesium li phahameng. Ka hona, tlasa maemo a ho fihlela matla le botsitso bo tšoanang, likarolo tse entsoeng ka motsoako oa magnesium li bobebe ho feta likarolo tse entsoeng ka lisebelisoa tse ling. Ka mantsoe a mang, motsoako oa magnesium o ka fihlela boima bo bobebe.
Tšitiso e ntle ea anti-electromagnetic: Kaha motsoako oa magnesium ke sesebelisoa sa tšepe se nang le matla a khoheli, o na le tšireletso e ntle ea motlakase. Sesebelisoa sa khetla ea magnesium alloy se ka amohela tšitiso ea motlakase ho feta 1000db. Ka hona, lihlahisoa tsa 3C li sebelisa likhetla tse ngata tsa magnesium alloy ho ntlafatsa bokhoni ba tsona ba ho kena-kenana le motlakase.
Khanyetso e ntle ea thothomelo: Motsoako oa Magnesium o na le litšobotsi tse phahameng tsa ho fokolisa le ho hanela hamolemo ho feta ka lebaka la modulus ea ona e nyane.
Ho le bonolo ho mochini: Hobane ho itšeha ho hanyetsa motsoako oa magnesium ke 0.56 ea aluminium alloy le 0.29 ea tšepe ea tšepe, lebelo la ho itšeha la magnesium alloy le phahame ho feta la lisebelisoa tse ling, mme ts'ebetso ea tlhahiso e phahameng.
E bonolo ho sebelisoa hape hape: Ha e bapisoa le lisebelisoa tse ling tsa tšepe, ntlha ea ho qhibiliha le mocheso o itseng li tlase, ka hona e sebelisa matla a fokolang nakong ea nchafatso le ho qhibiliha.
Theko e tlase: Ka ntlafatso ea tšepe ea tšepe ea magnesium le theknoloji e amanang le eona ea ts'ebetso, litšenyehelo tsa tlhahiso ea magnesium alloy li ntse li fokotseha hanyane ka hanyane, tse nang le melemo e hlakileng ea moruo.
Lintlha tse ling: botsoako bo botle, botsitso ba boholo ba sehlahisoa, ho hanyetsa tšusumetso le likarolo tse ling.

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