Kev siv tub rog ntawm Titanium
Titanium yog ib qho ntawm cov hlau feem ntau siv hauv kev siv tub rog thiab tau txais txiaj ntsig rau nws lub zog-rau-qhov hnyav piv thiab zoo heev corrosion kuj. Kev siv titanium ua rau cov tuam txhab tsim khoom siv lub teeb yuag nrog kev ua kom muaj zog, tshwj xeeb tshaj yog nyob rau hauv huab cua txias.
Vim li cas titanium nyiam rau kev siv tub rog?
Qhov kev nyiam rau titanium rau kev siv tub rog tsis yog random. Cov hlau tuav cov qib siab ntawm kev ua haujlwm txawm tias qhov kub thiab txias. Tsis tas li ntawd, nws muaj qhov qaug zog thiab tawg toughness xav tau rau cov ntawv thov. Lub teeb yuag, muaj zog, thiab tiv taus corrosion, titanium yog suav tias yog ib qho tseem ceeb hauv cov tub rog.
Kev thov siab rau titanium hauv kev ua tub rog tau txhawb nqa kev tshawb fawb tshiab ntawm kev siv cov peev txheej tshiab. Nws yog ib qho tseem ceeb rau kev lag luam tub rog kom pom cov hlau uas tuaj yeem tiv taus huab cua yam tsis muaj kev cuam tshuam nws cov kev ua haujlwm thiab kev tiv thaiv lub zog.
Raws li titanium extraction thiab purification txheej txheem ua tsis tshua muaj complex, cov hlau maj mam dhau los ua cov kev xaiv rau ntau yam Cheebtsam (nws hloov steel raws li tus qauv xaiv). Titanium tsis kim npaum li nws tau ua lawm, thiab raws li nws tau yooj yim dua, kev ua tub rog tau vam khom rau nws.
Kev siv tub rog ntawm Titanium
Titanium yog tam sim no siv los tsim cov khoom siv dav hlau, nrog rau cov cuaj luaj, daim hlau armor thiab nkoj nkoj. Txawm tias lub dav hlau siv qhov chaw ua los ntawm titanium, muab nws cov kev ua tau zoo hauv ntau qhov chaw.
Ntxiv nrog rau kev lag luam ntshiab titanium, manufacturers kuj cia siab rau titanium alloys. Lawv alloyed titanium nrog txhuas thiab vanadium los tsim cov iav tsaws, tso cov kav dej thiab cov tshuab hydraulic. Tsis ntev los no, titanium tau raug alloyed nrog tungsten, thiab cov txiaj ntsig sib xyaw yog siv hauv lub tank armor (kev tiv thaiv kev sib ntaus sib tua). Cov khoom siv tseem ceeb thiab cov phab ntsa hluav taws xob tuaj yeem ua los ntawm titanium alloys.
Nws yog qhov tseeb tias titanium alloys nrov heev hauv kev ua tub rog, suav nrog rau ntau qhov chaw thiab hydraulic systems. Txawm li cas los xij, Alpha alloys tsis siv vim lawv tsis tuaj yeem kho cua sov, yog li nws tsis tuaj yeem tau txais cov khoom tsim nyog txhua yam. Alpha-beta alloys, ntawm qhov tod tes, tuaj yeem kho cov cua sov thiab muaj lub zog thiab ductility xav tau rau ntau yam kev siv tub rog.
Muab titanium' qhov kev tiv thaiv siab, nws' tsis muaj qhov xav tsis thoob tias cov tuam txhab siv cov hlau no rau cov cuab yeej cuab tam (ntau ntxiv tiv thaiv kev hem thawj).
Txhua hnub, ua tsaug rau kev tshawb fawb tshiab, titanium tau siv ntau thiab ntau dua hauv kev ua tub rog. Ntxiv nrog rau kev tiv thaiv cov cuab yeej cuab tam thiab cov cuab yeej siv dav hlau, nws kuj tseem siv rau hauv kev tsim cov tsheb sib ntaus sib tua thiab cov cuaj luaj, nrog rau lwm yam riam phom thiab cov kav dej (Navy seawater).
Armor rau tso tsheb hlau luam thiab tub rog cov tub rog tuaj yeem ua nrog titanium ua cov khoom tseem ceeb. Cov tsheb thauj neeg tus kheej thiab cov cuab yeej siv phom sij thiab cov phom sij yog ua los ntawm titanium. Qhov no yog vim qhov txo qhov hnyav ntawm titanium, tab sis nws muaj zog heev thiab tiv taus kev tawm tsam ballistic.
Qib Titanium - Kev siv tub rog
Rau kev siv armor, Ti-6A1-4V feem ntau nyiam vim nws qhov kev ua tau zoo tshaj plaws. Lwm alloy, Ti-6AL-4V ELI, feem ntau yog siv rau hauv kev tsim cov dav hlau turbines thiab lwm yam khoom siv uas ua haujlwm nyob rau hauv qhov chaw kub heev.
Rau cov khoom siv phom sij thiab cov ncej, 6AL-6V-2Sn-Ti yog thawj qhov kev xaiv. Cov titanium alloy no qee zaum siv los tsim cov iav tsaws thiab foob pob hluav taws. Qib 5 titanium yog siv dav hauv kev siv tub rog thiab muaj zog dua tom qab kev kho cua sov.
Titanium composites, nrhiav tsis ntev los no
Ob peb xyoos dhau los, cov kws tshawb fawb tau tsom mus rau kev siv cov titanium sib xyaw, suav nrog hauv kev ua tub rog. Tsim los ntawm titanium thiab fiberglass, cov khoom siv sib xyaw no yog siv los ua cov hniav rotor (pom hauv Black Hawk nyoob hoom qav taub hnub no).
Vim li cas cov ntaub ntawv sib xyaw siv ntau zaus hauv kev siv tub rog? Cov lus teb yog yooj yim. Cov titanium composites muaj cov khoom siv hluav taws xob zoo heev, tshwj xeeb tshaj yog piv rau carbon composites. Tsis tas li ntawd, lawv lav tau zoo tam sim no ntws thiab thermal expansion.
Kev siv Titanium hauv Navy
Cov ntawv thov Naval xav tau cov hlau uas tiv taus cov dej hiav txwv puas tsuaj yam tsis tau txi nws txoj kev ncaj ncees. Titanium muaj kev tiv thaiv corrosion zoo heev thiab yog qhov kev xaiv zoo tshaj plaws. Yog li ntawd, nws yog siv los tsim cov khoom siv uas nquag tuaj rau hauv dej hiav txwv.
Lub kiv cua ncej thiab underwater manipulator yog ua los ntawm titanium thiab nws cov alloys. Ib yam mus rau cov khoom siv rigging, onboard cua txias tshuab thiab piping. Cov hlau no yog cov khoom ntawm kev xaiv rau kev tsim cov subsea pob li qub thiab cov khoom siv hluav taws xob sib hloov, nrog rau cov hauv ob sab phlu ntawm cov twj tua hluav taws thiab cov kav dej.
Kev puas tsuaj rau cov kav dej hiav txwv yog qhov teeb meem ntev ua ntej titanium siv rau ntawm qhov loj. Qhov no degradation yog qhov tshwj xeeb tshaj yog nyob rau hauv lub tshav kub exchangers, yuav tsum tau nquag hloov thiab kho (cov nqi kev pab ntau dua). Sij hawm dhau mus, tooj liab-nickel tubing tau hloov los ntawm titanium tubing, ua rau lub neej ntev dua thiab cov nqi qis dua.
Kev siv titanium hauv Air Force
Tau ntau xyoo lawm, kev lag luam tub rog dav hlau tau tso siab rau titanium, tshwj xeeb tshaj yog cov ncej thiab airframe. Hnub no, koj' kuj tseem yuav pom lwm cov khoom siv dav hlau ua los ntawm titanium lossis nws cov alloys, suav nrog cov cua nkag, cov iav tsaws, thiab cov hlua khi. Nws kwv yees tias txog li 25% ntawm cov tub rog dav hlau muaj titanium (feem pua siab dua qhov uas tau ntsib hauv kev lag luam dav hlau).
Yog vim li cas vim li cas titanium thiaj li nrov nyob rau hauv tub rog aviation tau ua nrog nws cov kev ua tau zoo heev, tshwj xeeb tshaj yog nyob rau hauv high kub (tshaj 600ºC). Vim tias cov khoom no, titanium yog tam sim no siv los ua lub dav hlau cav castings thiab compressor discs. Thaum lwm cov hlau tuaj yeem tawg nrog qaug zog ntawm qhov kub thiab txias, titanium tuaj yeem tiv taus qhov kub thiab txias thiab tswj tau qhov kev ua tau zoo tshaj plaws.
