Tharollo ea Tšebeletso ea Powder Metallugry

MOKHOA OA HO ETSA HO HLAHISA LIKAROLO TSA TŠEPE EA PORO

Motsoalle ea ratehang, u ka sebelisa tsenamoralo oa tšepe oa phofomalebela a ho u thusa ho theha karolo e sebelisang theknoloji ea phofo haholo.Sena ha se reretsoe ho ba bukana e felletseng ea ho ralalikarolo tsa tšepe ea phofo.Leha ho le joalo, ho latela litataiso tsena ho tla ntlafatsa katleho ea tlhahiso ha ho ntse ho fokotsa litšenyehelo tsa lisebelisoa.Ikopanye Jiehuang e le k'hamphani ea phofo ea metallurgy kapele kamoo ho ka khonehang e le hore re ka u thusa ho fumana molemo ka ho fetisisa likarolong tsa hau tsa tšepe tsa phofo bakeng sa tlhahiso ea P / M.U ka boela ua bapisa tlhahiso ea tšepe ea phofo le mekhoa e meng e fumanehang ea tlhahiso.Sebelisa tsebo ea rona ho fihlela le ho feta sepheo sa hau sa tlhahiso.Ho qala, ikopanye le rona hanghang.Takatso ea rona ke moralo oa tšepe ea phofo, 'me re ka thusa!

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LITŠOANTŠISO TSA PORO

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Lisebelisoa tsa tšepe tse entsoeng ka phofo ea tšepe

Lisebelisoa tsa tšepe tse entsoeng ka tšepe li entsoe haholo ka likarolo tsa tšepe, le sehlopha sa lisebelisoa tsa tšepe le tsa tšepe tse entsoeng ka ho eketsa likarolo tse kang C, Cu, Ni, Mo, Cr, le Mn.Lihlahisoa tse entsoeng ka tšepe ke mofuta o hlahisang litholoana haholo indastering ea metallurgy ea phofo.

1. Phofo e entsoeng ka tšepe

Li-powders tse sebelisoang linthong tse entsoeng ka tšepe le lihlahisoa tse entsoeng ka tšepe haholo-holo li kenyelletsa phofo e hloekileng ea tšepe, phofo e entsoeng ka tšepe e entsoeng ka tšepe, phofo e entsoeng ka tšepe e entsoeng pele, joalo-joalo.

2. PM lihlahisoa tse entsoeng ka tšepe

Theknoloji e tloaelehileng ea ho hatella / sintering ka kakaretso e ka hlahisa lihlahisoa tse entsoeng ka tšepe tse nang le boima ba 6.4 ~ 7.2g / cm3, tse sebelisoang likoloing, lithuthuthu, lisebelisoa tsa lapeng, lisebelisoa tsa motlakase le liindasteri tse ling, ka melemo ea ho monya lerata, ho fokotsa lerata, boima bo bobebe le ho baballa matla.

3. Powder injection molding (MIM) lihlahisoa tse entsoeng ka tšepe

Ho bopa ha ente ea phofo ea tšepe(MIM) e sebelisa phofo ea tšepe e le lisebelisoa tse tala ho etsa likarolo tse nyane tsa tšepe tse nang le libopeho tse rarahaneng ka mokhoa oa ho bopa ente ea polasetiki.Ho latelaLisebelisoa tsa ho bopa ka ente ea tšepe ea MIM, 70% ea lisebelisoa tse sebelisoang hona joale ke tšepe e sa hloekang 'me 20% ke lisebelisoa tsa tšepe tse tlaase.Theknoloji ea MIM e sebelisoa haholo indastering ea mehala ea thekeng, likhomphutha le lisebelisoa tse thusang, joalo ka li-SIM clip tsa mohala oa thekeng, mehele ea khamera, jj.

Powder metallurgy semented carbide

Cemented carbide ke phofo metallurgy hard material with transition group refractory metal carbide kapa carbonitride e le karolo ea mantlha.Ka lebaka la matla a eona a matle, boima le boima bo tšoanang, carbide e entsoeng ka samente e sebelisoa haholo e le lisebelisoa tsa ho itšeha, lisebelisoa tsa merafo, likarolo tse sa sebetseng, lihamore tse ka holimo, meqolo, joalo-joalo, 'me e sebelisoa haholo ho tšepe, koloi, sefofane, lisebelisoa tsa mochini oa CNC. , indasteri ea mechine Mold, lisebelisoa tsa boenjiniere ba leoatleng, lisebelisoa tsa ho tsamaea ka terene, indasteri ea theknoloji ea tlhahiso-leseling ea elektroniki, mechine ea kaho le lisebelisoa tse ling ho etsa le ho sebetsa le merafo, ho ntšoa ha mehloli ea oli le khase, kaho ea litšebeletso tsa motheo le liindasteri tse ling.

Powder metallurgy magnetic material

Lisebelisoa tsa makenete tse lokiselitsoeng ka mokhoa oa ho etsa phofo le mekhoa ea sintering li ka aroloa ka mekhahlelo e 'meli: phofo ea metallurgy e sa feleng lisebelisoa tsa makenete le lisebelisoa tse bonolo tsa makenete.Lisebelisoa tsa magnete tse sa feleng li kenyelletsa lisebelisoa tsa makenete tse sa feleng tsa samarium cobalt, neodymium, tšepe, lisebelisoa tsa makenete tse sa feleng tsa boron, lisebelisoa tsa makenete tse sa feleng tsa AlNiCo, lisebelisoa tsa makenete tsa ferrite, jj.

Monyetla oa metallurgy ea phofo ho lokisa lisebelisoa tsa makenete ke hore o khona ho lokisa likaroloana tsa makenete ka boholo ba sebaka se le seng, ho fihlela mokhoa o ts'oanang oa phofo ea khoheli nakong ea ts'ebetso ea ho hatella, 'me ka kotloloho e hlahisa limakenete tse phahameng tsa sehlahisoa se haufi le sebopeho sa ho qetela, haholoholo. bakeng sa lisebelisoa tse thata tsa mochini tse thata le tse robehileng.Mabapi le lisebelisoa, melemo ea phofo ea metallurgy e hlahella haholoanyane.

Metallurgy superalloys ea phofo

Powder metallurgy superalloys e thehiloe holim'a nickel 'me e kenyelelitsoe ka likarolo tse fapaneng tsa alloying tse kang Co, Cr, W, Mo, Al, Ti, Nb, Ta, joalo-joalo E na le matla a phahameng a mocheso o phahameng, ho hanyetsa mokhathala le ho hanyetsa ho chesa ha kutu le tse ling tse ngata. thepa.Alloy ke lisebelisoa tsa likarolo tsa bohlokoa tsa ho chesa tse kang li-aero-engine turbine shafts, turbine disk baffles, le turbine disks.Ts'ebetso e kenyelletsa haholo ho lokisoa ha phofshoana, ho kopanya mocheso le ho phekola mocheso.

Sehlopha sa rona sa litsebi se tla eletsa ka thepa e itšetlehileng ka thepa ea likarolo tsa tšepe ea phofo ea hau. Thepa e ngata ea lihlahisoa tse ka sebelisoang ho khotsofatsa litlhoko tsa hau ho latela theko, nako e telele, taolo ea boleng, le likopo tse khethehileng ke e 'ngoe ea melemo e ka sehloohong. ea ho sebelisa phofo ea tšepe ho hlahisa likaroloana.Tšepe, tšepe, thini, nickel, koporo, aluminium le titanium ke tse ling tsa litšepe tse sebelisoang khafetsa.Hoa khoneha ho sebelisa litšepe tse refractory tse kenyelletsang boronse, koporo, tšepe e sa hloekang, le li-alloys tsa nickel-cobalt, hammoho le tungsten, molybdenum le tantalum.Ts'ebetso ea Powder Metal e kenyelletsa ho kopanya litšepe tse fapaneng ho theha li-alloys tse ikhethileng tse lumellanang le litlhoko tsa kopo ea hau.Re ka u thusa ho rala li-lubrication, corrosion resistance, le litšoaneleho tse ling e le karolo ea bohlokoa ea ts'ebetso ea tlhahiso ho kenyelletsa matla le boleng bo thata.Re ka hatella meaho e rarahaneng ka ho sebelisa metsoako ena e ikhethang ea phofo ea tšepe ka sekhahla sa tlhahiso ea likotoana tse 100 ka motsotso.

Ho hatella

E kenngoa ka har'a mochine oa khatiso oa hydraulic kapa oa mechine moo o kenngoa ka har'a tšepe ea sesebelisoa kapa carbide die hang ha motsoako o loketseng oa phofo o kopantsoe.JIEHUANGe ka hatisa likarolo tse nang le likarolo tse 'nè tse fapaneng tsa lintlha tse ntle.Ho ipapisitsoe le boholo le litlhoko tsa letsoalo, mokhoa ona o sebelisa khatello ea 15-600MPa ho hlahisa likarolo tse "tala" tse nang le litšobotsi tsohle tse hlokahalang tsa sebopeho sa moetso oa ho qetela.Leha ho le joalo, ha ho litekanyo tse nepahetseng tsa ho qetela tsa karolo kapa litšobotsi tsa eona tsa mochini tse teng ka nako ena.Phekolo ea mocheso e latelang, kapa "sintering," mohato o phethela likarolo tseo.

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sintering ea tšepe (mokhoa oa sintering ka metallurgy ea phofo)

Likotoana tse tala li fepeloa ka sebōping sa sintering ho fihlela li fihla ho matla a ho qetela a hlokahalang, ho teteana le ho tsitsa ha mahlakore.Homokgoa wa sintering, mocheso o ka tlase ho ntlha ea ho qhibiliha ea karolo e ka sehloohong ea phofo ea karolo e futhumatsoa sebakeng se sirelelitsoeng ho kopanya limolek'hule likaroloana tsa phofo tsa tšepe tse etsang karolo.Boholo le matla a lintlha tsa mabitso pakeng tsa likaroloana tse hatelitsoeng li hola ho ntlafatsa likarolo tsa botekgeniki tsa karolo.E le ho finyella likarolo tsa ho qetela tsa likarolo, sintering e ka 'na ea fokotseha, ea atolosa, ea ntlafatsa conductivity, le / kapa ea etsa hore karolo e be thata ho latela moralo oa ts'ebetso.Ka sebōping sa sebōpi, likaroloana li behoa ka har'a conveyor e tsoelang pele 'me butle-butle li tsamaisoa ka likamoreng tsa sebōpi ho phethahatsa mesebetsi e meraro e meholo.Ho felisa mafura a sa batleheng a kenyelletsoeng phofo nakong ea ts'ebetso ea ho kopanya, likotoana li qala ho futhumala butle-butle.Likarolo tse latelang li fetela sebakeng se phahameng sa mocheso oa sebōpi, moo litšoaneleho tsa ho qetela tsa likarolo li khethoang ka mocheso o laoloang hantle ho tloha ho 1450 ° ho ea ho 2400 °.Ka ho leka-lekanya sepakapaka ka har'a kamore ena ea sebōpi, likhase tse ling li eketsoa ho fokotsa li-oxide tse teng le ho emisa oxidation e eketsehileng ea likarolo nakong ena ea mocheso o phahameng.Ho qeta likotoana kapa ho li lokisetsa bakeng sa mekhoa leha e le efe e eketsehileng, qetellong li kena ka kamoreng e pholileng.Ho itšetlehile ka lisebelisoa tse sebelisoang le boholo ba likaroloana, potoloho eohle e ka nka metsotso e 45 ho isa ho lihora tse 1.5.

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kamora ho sebetsa

Ka kakaretso, thelihlahisoa tsa sinteringe ka sebelisoa ka kotloloho.Leha ho le joalo, ho ba banglihlahisoa tsa tšepe tsa sintertse hlokang ho nepahala ho phahameng le boima bo phahameng le ho hanyetsa ho apara, phekolo ea post-sintering e hlokahalang.Ts'ebetso ea morao-rao e kenyelletsa ho tobetsa ka nepo, ho bilika, ho fetella, ho tima, ho tima holim'a metsi, ho qoelisoa ka oli le ho kenella.

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Ts'ebetso ea kalafo ea bokaholimo ba metallurgy ea phofo

O ka kopanalihlahisoa tsa metallurgy, lisebelisoa tsa tšepe tsa phofo tse bonolo ho mafome, ho bonolo ho li senya, joalo-joalo, e le ho ntlafatsa ho hanyetsa ha mafome, ho hanyetsa mafome, ho hanyetsa kutu le matla a mokhathala a likarolo tsa phofo ea metallurgy (gear).Jiehuang e tla etsa kalafo ea holim'a likarolo tsa tšepe ea phofo, e leng ho etsa hore bokaholimo ba eona bo sebetse haholoanyane, hape le ho etsa hore bokaholimo bo be thata haholoanyane.Joale mekhoa ea kalafo ea phofo ea metallurgy ke efe?

Ho na le mekhoa e mehlano e tloaelehileng ea phekolo ea holim'a metsi homokhoa oa tlhahiso ea phofo ea metallurgy:

1.Ho roala:Ho roala lera la lisebelisoa tse ling holim'a likarolo tsa metallurgy tse entsoeng ka phofo ntle le karabelo ea lik'hemik'hale;

2.Mokhoa oa deformation oa mochini:Bokaholimo ba likarolo tsa phofo tsa metallurgy tse lokelang ho sebetsoa bo holofetse ka mokhoa oa mochini, haholo ho hlahisa khatello ea maikutlo le ho eketsa boima ba bokaholimo.

3. Kalafo ea mocheso oa lik'hemik'hale:likarolo tse ling tse kang C le N li hasana ka holim'a likarolo tse tšoaroang;

4. Phekolo ea mocheso holim'a metsi:phetoho ea mohato e etsahala ka phetoho ea cyclic ea mocheso, e fetolang microstructure ea holim'a karolo e tšoaroang;

5. Phekolo ea lik'hemik'hale ka holim'a metsi:karabelo ea lik'hemik'hale pakeng tsa holim'a likarolo tsa phofo tsa metallurgy tse lokelang ho phekoloa le ho itšoara ka ntle;

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KAROLO EA TŠEPE E FUMANE E PHAHAMENG KE E KHETHEHILENG EA RONA BAKENG SA MEFUTA E MFUPI EA LIIMALITE.DITHAROLLO TSA RONA LI LOKELA NTHO TSOHLE, HO AKARELETSA LIKAROLO TSA TŠEBELETSO EA MOSEBETSI O MOHOLO LE LISEBETSI TSA MEDICAL TSE BOHLOKOA.

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Ngola molaetsa wa hao mona mme o re romele wona