Magnesium lits'epe tse kopantsoeng kopo, tlhophiso le thepa

Magnesium lits'epe tse kopantsoeng na palo ya thepa buka e ikhethang 'meleng le lik'hemik'hale, ka sehloohong har'a tse tlaase segokanyipalo le matla a phahameng. Kopantseng litšobotsi tsena ka thepa le go tlaleletsa ka magnesium dumella lihlahisoa le mehaho ena e phahameng matla le litšobotsi tse le tlaase boima.

magnesium tobileng

Industrial tlhahiso le tshebediso ya magnesium e batlang e le tsa morao tjena - feela ba ka bang 100 tse fetileng. tšepe ena e na le boima tlaase, kaha e na le e batlang e le e tlase segokanyipalo (1.74 g, / smᶟ) botsitso e ntle moeeng, alkalis, mecha ea phatlalatso ea gaseous le ho ba le fluorine dikahare ka oli matsoai.

ntlha lona qhibiliha ke likhato 650. E tšoauoa ke reactivity phahameng ho fihlela combustion itlelang feela moeeng. E hloekileng magnesium Tensile matla ke 190 MPa, modulus tsa elasticity - 4500 Mpa, elongation - 18%. Metal na le phahameng damping bokgoni (ka katleho monyang loebehlana rekere) hore e fana ka ka ho eona le e portability babatsehang le fokotswa nahanela tšosa gomoso liketsahalo.

Har'a lintho tse ling tsa karolo ena ke e ntle mogote conductivity, e na le bokhoni bo tlaase ho monya neutron mogote le sebelisana le mafura a nyutlelie. Ka lebaka la ho kopana le thepa tsena tsa magnesium ke lintho tse bonahalang loketseng bakeng sa ho phahameng mocheso likarolo hermetic khetla ea reactors nyutlelie.

Magnesium hantle alloyed le lirafshoa tse sa tšoaneng le amana le palo ea mahlahana matla fokotsa, e ke ke ha khoneha ntle thulaganyou e metallothermy.

Foromo e hloekileng e haholo-holo sebelisoa e le dopant ka lits'epe tse kopantsoeng le aluminium, thaethaniamo, 'me ba bang ba likarolo tse ling tsa lik'hemik'hale. Ka ferrous metallurgy le magnesium o etsoang desulfurization tebileng tsa tšepe le tšepe, hammoho le thepa ea ntlafala ba bobeli ke spheroidizing graphite.

Magnesium le dopants

The dopants atileng ka ho fetisisa sebelisoa ho lits'epe tse kopantsoeng magnesium tse thehiloeng kenyeletsa thepa ea motheo tse kang aluminium, a mankanese a le zinki. aluminium e ntlafetse ka sebopeho sa eketsa fluidity le matla a boitsebiso boo. Selelekela zinki hape e fana ka lits'epe tse kopantsoeng tsoarellang ho feta le fokotswa ea lijo-thollo ka boholo. Tshebediso ya mankanese kapa zirconium eketsa ho hanyetsa ts'enyeho ea lits'epe tse kopantsoeng magnesium.

Go tlaleletsa ka zinki le zirconium fana eketsehile ka makhetlo matla le ductility metallosmesey. Le ho ba teng ha likarolo tse itseng ka seoelo lefatše tse kang neodymium, cerium, yttrium le tse ling tse joalo., E Khothalletsa le keketseho ea bohlokoa ho hanyetsa mocheso le e fumantsa ho phetha molao thepa ea lits'epe tse kopantsoeng magnesium.

Ho bopa ultralight lintho tse bonahalang le segokanyipalo sa tsa 1.3 ho 1,6 g, / ka lits'epe tse kopantsoeng mᶟ lithium e hlahisitswe. tseloe Sena se ka fokotsa boima ba 'mele ea bona ka ho halofo ea bapisoa le aluminium metallosmesyami. Ka tsela eo indices plasticity bona, fluidity, processability le elasticity ba sebakeng boemong bo phahameng.

Classification lits'epe tse kopantsoeng le magnesium

Magnesium lits'epe tse kopantsoeng a classified latela dihlahlobo tse 'maloa. Ba:

• ke mokhoa oa ho e lokisa - ka lahla le hlotse;
• ho ea ka tekanyo e oa nahanela ho kalafo mocheso - ka neuprochnyaemye le satalatsa mocheso kalafo;
• The thepa le dikopo - ho motsoako mocheso manganga, matla a phahameng 'me kakaretso-morero oa;
• ke doping oona tsamaisong - ho na le lihlopha tse 'maloa neuprochnyaemyh le tiile lipelo ke mocheso kalafo e teiloeng lits'epe tse kopantsoeng magnesium.

foromeletsoeng lits'epe tse kopantsoeng

sehlopha sena se akarelletsa ho go tlaleletsa ka lits'epe tse kopantsoeng magnesium, ne a rerile hore ho hlahisa mefuta e fapaneng ya likarolo le thepa ea motheo ke foromeletsoeng hlobo. Ba na le thepa e fapaneng phetha molao, ho itšetlehile ka tse arotswe litlelase tse tharo:

• sredneprochnye;
• phahameng matla;
• mocheso manganga.

Ho ea ka lik'hemik'hale tsa lits'epe tse kopantsoeng ba boetse ba arotsoe ka lihlopha tse tharo:

• aluminium + magnesium + zinki;
• + Zinki + magnesium zirconium;
• Mg, + Zr + earths seoelo.

motsoako castability

Libaka tse Hloahloa tsa castability thepa har'a lihlahisoa tsa lihlopha tsena tse tharo na aluminium-magnesium lits'epe tse kopantsoeng. Ba ho matleng a ea sehlopheng sa ea thepa le matla a phahameng (220 MPa), kahoo ba ile ba ba le kgetho ya molemo ka ho fetisisa bakeng sa ho etsa enjene likarolo lifofane le likoloi tse ling ho sebetsa ka dipehelo tsa mejaro mechine le mogote.

Ho ntlafatsa matla a litšobotsi tsa lits'epe tse kopantsoeng aluminium-magnesium le likarolo tse ling tse e doped. Empa ho ba teng ha tšepe le koporo litšila e sa rateheng, ho tloha likarolo tsena ba le phello e mpe ho weldability le ts'enyeho hanyetsa tsa lits'epe tse kopantsoeng ka.

Lahla lits'epe tse kopantsoeng magnesium lokiseditsweng ho mefuta e sa tšoaneng ea sebopi qhibiliha: a reflector, e tsoana le sebopi le khase, oli kapa motlakase halefile tsoana le sebopi kapa induction diyuniti.

E le hore ho thibela go tuka ga molelo tsa tshebetso ya ho qhibiliha le lahla ho sebelisa ts'ebetsong khethehileng le additives. Castings tse lokiselitsoeng ke lehlabathe betsa, foromeletsoeng ho khetla le samente, tlas'a khatello le ho sebelisa ya dipaterone dipeeletso.

lits'epe tse kopantsoeng masalami

Ha ho bapisoa le ho betsa e, e teiloeng magnesium lits'epe tse kopantsoeng na e phahameng matla, ductility le toughness. Di sebediswa bakeng sa ho hlahisa mekhoa preforms phethola, phehella le otla ka litebele. E le sehlahisoa mocheso kalafo e sebelisoa ka mocheso oa 350-410 lengolo la thatafatsa, lateloa ke Cooling tsitlella ntle botsofali.

Ha futhumatsang ea thepa polasetiki thepa joalo eketseha, kahoo ho sebetsa lits'epe tse kopantsoeng magnesium e phethahatsoa ka khatello le ka thempereichara e phahameng. Tapa o etsoa likhato 280-480 le tlas'a khatello ka lebaka la e-shoa a koetsoeng. Ha a batang phikolosetsa khanna khafetsa lipakeng recrystallization anneals.

Ha ho tjheseletsa magnesium motsoako lihlahisoa seam matla a ka fokotsoa ka likarolo moo o ile a etsa jelly, ka lebaka la nahanela ea thepa e joalo ho overheating.

Libakeng tsa kopo ka ho eketsa magnesium lits'epe tse kopantsoeng

Ke ho lahla mekhoa e, deformation le mocheso kalafo ya lits'epe tse kopantsoeng entse seka fapaneng - ho nahanoang, lipoleiti, Profiles, maqephe a, forgings, joalo-joalo likheo tsena tsena li sebelisoa bakeng sa ho hlahisa metsoako le lintlha a maqheka morao-rao botekgeniki moo boima ho phetha karolo ea ka sehloohong bokgoni dibopeho (fokotswa boima) ha ho boloka matla a bona thepa. Ha ho bapisoa le aluminium magnesium le bonolo ho makhetlo 1.5, 'me le tšepe - 4.5.

Hona joale, ho sebelisoa ha lits'epe tse kopantsoeng magnesium ho pharaletseng tloaela ho ka Aerospace e, likoloi, sesole le liindasteri tse ling, moo theko tsona tse phahameng (ba bang ba Brands na ka sebopeho bona theko e phahameng haholo alloying likarolo) e loketse ho tloha ntlha ya moruo ya pono, matla a ho bopa tsoarellang ho feta, ho itima lijo, ea matla le polokeho hore ka sebetsa ka tsela e atlehang ka maemo a feteletseng, ho akarelletsa le ho thempereichara e phahameng.

Ka lebaka la ho ka 'nang phahameng motlakase, lits'epe tse kopantsoeng tsena ke lintho tse bonahalang e molemohali ea ho bopa Basireletsi ba hore sireletsa motlakase ya mehaho tšepe, tse kang likarolo likoloi, mehaho e ka tlas'a lefatše, platforms oli, likepe, joalo-joalo, ho tloha dithulaganyo ho ts'enyeho etsahala tlas'a tšusumetso ea mongobo, ba o khathollang le metsing metsi.

Lits'epe tse kopantsoeng 'nile ha sebelisoa ka go tlaleletsa ka magnesium ka tsamaiso ea fapaneng-le-moea seo mela mexri li entsoe ka mela galena lieha bakeng sa matshwao a medumo tsa motlakase.

bofello

Morao-rao indasteri libaka ka ho eketsehileng ditletlebong phahame ka thepa mabapi le matla a bona, ba apara ho hanyetsa, ho hanyetsa ts'enyeho le workability. Tshebediso ya lits'epe tse kopantsoeng magnesium ke e 'ngoe ea libakeng tse ngata hlamatsehang, ho joalo le ka ho etsa lipatlisiso tse amanang le ho batla thepa e ntjha ya magnesium le dikopo tsa lona ho khoneha, u se ke ua khaotsa.

Hona joale, ho sebelisoa ha lits'epe tse kopantsoeng magnesium tse thehiloeng ho theha mefuta e fapaneng ya likarolo le mehaho e ka finyella ho fokotsa boima ba 'mele ea bona ka ho hoo e ka bang 30% le ho eketsa tensile matla ea 300 MPa, empa, ho ea ka bo-rasaense, ha se meedi ya ho qetela tšepe ena e ikhethang.