Txoj Kev Txhim Kho Ntawm Titanium Alloys nyob rau hauv niaj hnub Space Rocket Technology
Nrog rau kev loj hlob sai ntawm kev lag luam aerospace nyob rau hauv lub xyoo pua 21st, cov kev cai rau aerospace foob pob ua ntxaij tshuab tau dhau los ua nruj me ntsis. Hauv particular, txoj kev loj hlob ntawm high-pulse thrust-rau-hnyav piv xyaw xyaw tau dhau los ua tus yuam sij rau kev txhawb nqa kev vam meej ntawm aerospace technology. Nyob rau hauv cov ntsiab lus no, titanium alloy, raws li ib tug hlau cov ntaub ntawv uas zoo heev high-temperature zog, low-temperature toughness thiab zoo heev ua zog, tau dhau los ua cov khoom tseem ceeb nyob rau hauv advanced aerospace rocket technology khoom.
Kev tshawb nrhiav ntawm kev siv cov titanium alloys hauv qhov chaw huab cua
Rau cov khoom nyob rau hauv qhov chaw foob pob hluav taws uas yuav tsum tau tiv taus huab cua kub (-200 degree mus rau siab dua), xws li φ600mm loj tuag forgings, accumulator daim hlau, bearing bracket blanks thiab yeeb nkab pob qij txha, lub koom haum Lavxias teb sab Kev tshawb fawb hlau ua hauj lwm rau cov txheej txheem ntawm. BT6c alloy Optimization thiab kev ua tau zoo. Cov hlau tsis tsuas tuaj yeem ua haujlwm ruaj khov ntawm -200 degree, tab sis kuj tseem txo qis kev ua haujlwm kub ntawm 253 degree los ntawm particle metallurgy thev naus laus zis, txhim kho kev ua tau zoo tag nrho ntawm cov khoom. Cov txheej txheem tshiab no ua kom qhov sib xws ntawm cov qauv nplua-grained ntawm txhua qhov ntawm qhov khoob, ua tiav kev ua haujlwm isotropy, thiab muab cov khoom siv txhim khu kev qha rau cov foob pob hluav taws hauv cov xwm txheej huab cua.
Kev siv dav thiab kev ua kom zoo ntawm ob-theem titanium alloys
Hauv kev siv dav hauv aerospace foob pob hluav taws, ob-theem titanium alloys xws li BT6c, BTl4, BT3-1, BT23, BTl6, BT9 (BT8), thiab lwm yam, tau dhau los ua cov khoom nyiam rau cov khoom tseem ceeb vim lawv zoo heev. Thaum tshav kub kub kho zog ntxiv zog. Piv txwv li, BT6c alloy yog dav siv nyob rau hauv ntau qhov chaw nrog siab zog yuav tsum tau nyob rau hauv lub tshav kub kev kho mob ntxiv dag zog rau lub xeev ntawm σb=1050MPa-1100MPa. Lub BT14 alloy qhia nws qhov tshwj xeeb zoo nyob rau hauv lub siab zog ntau yam ntawm σb=1100MPa ~ 1150MPa. Nws tuaj yeem siv tsis tau tsuas yog siv los tsim cov kab hluav taws xob zoo li cov khoom siv nrog txoj kab uas hla ntawm 80mm mus rau 120mm, tab sis kuj tseem tuaj yeem siv los ua cov khoom siv nruj hauv qhov kub thiab txias ntawm -196 degree. firmware siv.
Kev cia siab yav tom ntej ntawm Ti-l intercompound-raws li alloys
Txhawm rau txhawm rau txhim kho kev ua tau zoo ntawm qhov chaw foob pob hluav taws, cov kws tshawb fawb tshawb fawb tau tig lawv cov xim rau Ti-Al intermetallic compound-based alloys. Hom alloy no suav hais tias yog tus thawj coj hauv tiam tshiab ntawm qhov chaw foob pob hluav taws cov ntaub ntawv vim nws cov khoom siv tshwj xeeb, siab thermal zog, siab elastic modulus thiab tsawg ntom. Tam sim no, "Composite Materials" Scientific Research thiab Production Joint Company tau cog lus los tsim cov txheej txheem kev npaj cov khoom siv rau cov ntaub ntawv tshiab no, suav nrog cov khoom siv melting, pelletizing thiab isothermal deformation, los txhawb kev siv Ti-Al alloys thoob plaws hauv lub tshav dav hlau. .
Daim ntawv thov ntawm titanium alloys nyob rau hauv niaj hnub aerospace foob pob ua ntxaij thev naus laus zis tsis tsuas yog qhia txog qhov kev ua tiav tshiab hauv cov ntaub ntawv tshawb fawb, tab sis kuj qhia txog kev txhim kho yav tom ntej ntawm aerospace technology. Los ntawm kev tshawb nrhiav thiab ua kom zoo rau cov txheej txheem kev npaj thiab kev ua tau zoo ntawm titanium alloys, cov kws tshawb fawb tshawb fawb tau muab cov khoom siv txhim khu kev qha thiab muaj txiaj ntsig zoo rau cov foob pob hluav taws hauv qhov chaw, pab tib neeg los tshawb txog cov phiaj xwm loj ntawm lub ntiaj teb.