5 Cov txiaj ntsig ntawm Titanium Phaj rau Rocket thiab Satellite Tsim
Thaum cov foob pob ua ntxaij ya mus rau saum ntuj thiab satellites precisely tso lawv tus kheej thiab ua haujlwm ruaj khov hauv qhov chaw, cov xwm txheej zoo nkauj no vam khom los ntawm ntau cov ntaub ntawv tseem ceeb. Ntawm cov ntaub ntawv no, titanium daim hlau tau dhau los ua tus tseem ceeb tseem ceeb hauv kev tsim foob pob hluav taws thiab satellite vim lawv qhov tshwj xeeb zoo. Lawv cov kev ua tau zoo tshaj plaws yog dab tsi?
Lub teeb yuag thiab siab -Lub zog: kov yeej qhov hnyav-Lub zog nyuaj
Hauv thaj chaw aerospace, kev tswj qhov hnyav yog lub ntsiab lus perpetual. Txhua qhov kev txo qis me ntsis txhais tau hais tias nqa ntau dua load lossis txo tus nqi xa tawm. Titanium phaj muaj qhov ntom ntom, tsuas yog kwv yees li 60% ntawm cov hlau, tseem muaj lub zog tensile piv rau siab - lub zog steel. Siv cov foob pob hluav taws roj tso tsheb hlau luam ua piv txwv, siv cov titanium daim hlau txo qhov hnyav thaum tuav cov khoom siv zog. Qhov no tsis tsuas yog txhim kho lub foob pob hluav taws lub peev xwm nqa tau tab sis kuj tseem muaj peev xwm ua tau ntau dua rau yav tom ntej qhov chaw tshaj tawm txoj moo zoo, tso cai rau peb tshawb nrhiav lub ntiaj teb ntxiv.
Kev Tiv Thaiv Kub Zoo Tshaj Plaws: Tau Txais Kev Nyuaj Siab Ib puag ncig
Thaum lub foob pob hluav taws tso, qhov kub nyob ib ncig ntawm lub cav nce siab, ncav cuag ntau txhiab degrees Celsius; thaum lub caij dav hlau ntsib qhov kub tsis tshua muaj kub nyob hauv qhov chaw. Titanium phaj muaj thermal stability zoo heev. Ntawm qhov kub thiab txias, lawv lub zog tsuas yog txo qis me ntsis, tswj kev ncaj ncees ntawm cov qauv. Ntawm qhov kub thiab txias, lawv khaws zoo ductility thiab tsis tawg vim embrittlement. Lub hnub ci array deployment mechanism ntawm ib lub satellite, tom qab siv titanium daim hlau, ua tiav qhov sib txawv ntawm qhov kub thiab txias ntawm lub ntiaj teb tus duab ntxoov ntxoo thiab lub hnub ci, ua kom lub satellite ua haujlwm ruaj khov nyob rau lub sijhawm ntev - lub sijhawm ua haujlwm.
Muaj zog hluav taws xob tiv thaiv, tiv thaiv cov khoom tseem ceeb
Qhov chaw muaj ntau yam siab - zog thiab cosmic rays. Qhov hluav taws xob no tuaj yeem ua rau cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob puas tsuaj rau lub dav hlau, cuam tshuam rau lawv txoj kev ua haujlwm thiab kev ua neej. Titanium daim hlau muaj kev tiv thaiv hluav taws xob zoo heev, tiv thaiv gamma rays thiab neutrons, txo cov hluav taws xob puas tsuaj rau cov khoom siv dav hlau sab hauv. Tib lub sijhawm, oxide zaj duab xis tsim rau ntawm nws qhov chaw tiv thaiv atomic oxygen corrosion, muab kev tiv thaiv kev ruaj ntseg rau lub sijhawm ntev - lub sijhawm ua haujlwm ntawm lub dav hlau hauv qhov chaw hnyav, tso cai rau cov khoom tseem ceeb mus txuas ntxiv ua haujlwm ib txwm txawm nyob rau hauv cov hluav taws xob hnyav.
Zoo heev Corrosion Resistance, Resistant rau tshuaj Erosion
Rocket propellants feem ntau muaj cov tshuaj tiv thaiv zoo heev xws li nitrogen tetroxide thiab hydrazine. Cov tshuaj no, raws li kev sib cuag nrog cov ntaub ntawv, sai ua rau corrosion, shortening tivthaiv lifespan. Titanium daim hlau spontaneously tsim ib ntom titanium dioxide passivation zaj duab xis ntawm lawv nto. Cov yeeb yaj kiab no ua haujlwm zoo li cov cuab yeej muaj zog, tiv thaiv cov khoom corrosive los ntawm kev tiv thaiv cov khoom siv hauv paus. Txawm tias tom qab ntev immersion nyob rau hauv 50% nitric acid, titanium daim hlau qhia yuav luag tsis muaj corrosion. Nyob rau hauv cov dej hiav txwv ib puag ncig, lawv tsis kam mus rau crevice corrosion nyob deb tshaj ntawm cov stainless hlau zoo tib yam, ua kom lub neej kev pab cuam ntawm cov khoom tseem ceeb xws li spacecraft propulsion systems thiab roj kab.
Ib qho yooj yim rau txheej txheem, sib ntsib cov txheej txheem nyuaj
Yav dhau los, titanium daim hlau tau suav hais tias nyuaj rau kev ua haujlwm vim lawv lub zog siab thiab tsis tshua muaj zog ntawm elasticity. Txawm li cas los xij, nrog kev txhim kho ntawm niaj hnub precision tsim tshuab, qhov teeb meem no tau daws tau zoo. Los ntawm cov txheej txheem siab heev xws li superplastic forming thiab laser vuam, titanium daim hlau tuaj yeem ua tiav rau hauv ntau cov qauv nkhaus, ua tau raws li cov kev cai nruj ntawm lub dav hlau rau cov duab aerodynamic thiab lub zog ntawm cov qauv. Ib hom tshiab ntawm kev txhawb nqa satellite siv ib qho tseem ceeb titanium phaj molding thev naus laus zis, txo cov naj npawb ntawm cov khoom, txo qhov hnyav, thiab ua kom cov txheej txheem rigidity, yog li qhib txoj hauv kev tshiab rau kev tsim lub dav hlau.
Los ntawm lub foob pob hluav taws mus rau satellite ua haujlwm ruaj khov, titanium daim hlau ua lub luag haujlwm tseem ceeb hauv txhua theem tseem ceeb. Nrog nws cov kev ua tau zoo tshwj xeeb, nws muab kev txhawb nqa zoo rau kev txhim kho kev lag luam aerospace. Raws li kev siv thev naus laus zis thev naus laus zis txuas ntxiv mus ntxiv, daim ntawv thov kev cia siab ntawm titanium daim hlau yuav dhau los ua qhov dav dua, ua rau muaj kev cuam tshuam tshiab hauv tib neeg txoj kev tshawb nrhiav lub ntiaj teb.
