Titanium hauv Aviation Thiab Aerospace Applications

Lub invention ntawm lub dav hlau nyob rau hauv thaum pib ntawm lub xyoo pua 20th tau qhib ib tug tshiab era ntawm tib neeg aerospace. Cov khoom siv dav hlau thaum ntxov yog cov ntoo, tab sis muaj cov khoom tawg yooj yim, yooj yim rau kev tawg thiab yooj yim rau deformation, nrog rau lub dav hlau nyob rau hauv thawj thiab thib ob lub ntiaj teb ua tsov ua rog, tib neeg kev ua tau zoo yuav tsum tau ntawm lub aircraft yog ntau thiab ntau siab, yog li lub plasticity yog zoo. , siab zog, yooj yim rau txheej txheem, sib zog nqus aluminium alloy aircraft tau los ua, tab sis cov aluminium alloy aircraft, tsis muaj qhov kub thiab txias tsis kam, hnav-resistant shortcomings. Yuav kom daws tau cov teeb meem saum toj no, cov kws tshawb fawb tau nrhiav lwm txoj hauv kev rau aluminium alloy los ua lub dav hlau pob txha hlau, yog li titanium rau hauv lub zeem muag ntawm cov tuam txhab dav hlau. Los ntawm qhov xwm ntawm titanium tuaj yeem pom, titanium qhov ntom ntom me me, tab sis kuj muaj lub zog thermal thiab lub zog ruaj khov, nyob rau hauv kev vibration load thiab cuam tshuam load nyob rau hauv qhov kev txiav txim ntawm tawg expansion degree tsawg rhiab heev, tab sis kuj muaj zoo corrosion kuj, titanium. thiab nws cov alloys ntawm lub zog thiab steel lub zog yog piv rau qhov hnyav yog 57% ntawm cov hlau, yog li kev siv cov titanium alloys es tsis txhob aluminium alloys los tsim aircraft yog tus qauv, nyob rau hauv niaj hnub aircraft manufacturing, tib neeg yuav nyob rau hauv lub aircraft engine nyob rau hauv niaj hnub aircraft tsim, cov neeg yuav nyob rau hauv lub aircraft engine thiab lub plhaub qauv, kev siv ntawm high-strength titanium thiab titanium alloy Q los hloov cov txhuas alloy. Tam sim no, titanium alloy-raws li kev tsim dav hlau nyob rau hauv kev lag luam aviation tau suav nrog qhov feem ntau ntawm cov txiaj ntsig zoo, tshwj xeeb tshaj yog US cov tub rog aircraft feem ntau titanium alloy khoom. Piv txwv li, nws cov hypersonic reconnaissance aircraft SR-71, lub dav hlau nyob rau hauv titanium alloy loj accounted rau 92% ntawm tag nrho cov loj ntawm lub aircraft, thiab thawj zaug siv beta titanium alloy. Lwm qhov piv txwv yog American thib plaub-tiam fighter F-22, qhov chaw shuttle, qhov feem ntawm titanium tau mus txog 50-60 ib xees. Tsis tas li ntawd, F-14, F-15, F-18 Hornet, F-117 Nighthawk, B-1 bomber, B-2 bomber nyob rau hauv feem titanium nyob rau hauv kev txiav txim ntawm 24%, 27%, 13%, 25%, 22%, thiab 26%. Tus nqi ntawm titanium siv nyob rau hauv qhov hnyav ntawm ib lub dav hlau supersonic yuav ntau dua 95%. Nws tau ua pov thawj nyuaj rau kev tsim lub dav hlau supersonic yam tsis tau siv cov titanium alloys, vim hais tias cov dav hlau ua los ntawm titanium alloys tuaj yeem txo qhov hnyav li ntawm 5t piv nrog aluminium alloys, thiab qhov ceev ntawm titanium alloy aircraft yog loj heev nyob rau hauv cov ntaub ntawv ntawm tib tus nqi. ntawm cov neeg caij tsheb. Tsis tas li ntawd, hauv kev tsim cov foob pob hluav taws thiab lwm lub tshuab aviation, titanium daim ntawv thov piv kuj tseem nce siab, feem ntau suav txog 18% mus rau 25% ntawm tag nrho qhov hnyav, raws li kev tshawb fawb, ib nrab ntawm lub ntiaj teb kev tsim cov titanium yog siv rau aviation. cav.