Nws yog dav siv ntawm titanium alloys nyob rau hauv kev lag luam ntau lawm teb vim hais tias ntawm lawv cov tshwj xeeb siab zog-qhov hnyav piv, puas kuj, thiab superior tiv thaiv corrosion.Ntau lub tuam txhab nyiam siv Titanium alloy TC11 es tsis txhob TC4 hauv kev tsim cov impellers thiab cov hniav, vim yog cov khoom siv hluav taws xob zoo dua thiab muaj peev xwm ua haujlwm hauv qhov kub thiab txias rau lub sijhawm ntev.Titanium alloys yog classical nyuaj-rau-machine cov ntaub ntawv rau lawv lub cev muaj zog muaj zog tswj ntawm qhov kub thiab txias tsis tshua muaj thermal conductivity ua rau siab txiav kub.Rau qee qhov aero-engine Cheebtsam, xws li impellers, uas muaj qhov sib tw, nws yog qhov nyuaj rau kev ua kom tiav qhov siab dua thiab siab dua qhov yuav tsum tau ua los ntawm kev siv cov milling.
Nyob rau hauv lub automotive nyob rau hauv combustion engine, ib tug turbocharger rotor tau pab txhawb rau lub increment ntawm ob lub hwj chim efficiency thiab txo cov roj, vim hais tias cov pa pa pa txhawb lub intake efficiency tsis muaj roj ntxiv.Txawm li cas los xij, lub turbocharger rotor muaj qhov tsis zoo ntawm lub cev hu ua "turbo-lag" uas ua rau lub sijhawm ua haujlwm tsis tu ncua ntawm turbocharger hauv qab 2000 rpm.Titanium aluminides tuaj yeem txo qhov hnyav mus rau ib nrab ntawm cov pa turbocharger.Dhau li, tial alloys muaj kev sib xyaw ua ke tsawg, muaj lub zog muaj zog, thiab cua sov zoo.Raws li, TiAl alloys tuaj yeem tshem tawm qhov teeb meem turbo-lag.Txog tam sim no, rau kev tsim cov turbocharger, hmoov metallurgy thiab casting txheej txheem tau muab tso ua ke.Txawm li cas los xij, nws yog ib qho nyuaj rau kev siv cov hmoov metallurgy txheej txheem rau turbocharger manufacturing, vim nws tsis zoo soundness thiab weldability.
Los ntawm qhov kev xav ntawm cov txheej txheem tsim nyog, kev nqis peev casting tuaj yeem suav tias yog kev lag luam net-puab thev naus laus zis rau TiAl alloys.Txawm li cas los xij, lub turbocharger muaj ob qhov curvature thiab nyias phab ntsa, thiab tsis muaj cov ntaub ntawv tsim nyog xws li castability thiab fluidity nrog pwm kub, yaj kub thiab centrifugal quab yuam.Kev ua qauv ntawm casting muaj ib txoj hauv kev muaj zog thiab raug nqi los kawm txog kev ua tau zoo ntawm ntau yam kev ua haujlwm casting.
Kev siv
Loria UA.Gamma titanium aluminides ua cov khoom siv yav tom ntej.Intermetallic 2000; 8:1339e45.
Post lub sij hawm: May-30-2022