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Los ntawm Cov Khoom Siv Hlau Hlau, Titanium Alloys Rau Cov Khoom Siv Ua Haujlwm, Cov Khoom Siv Aerospace Tau Txhim Kho Cov Kauj Ruam Ib ruam dhau

Jun 16, 2021

Tsis ntev los no, raws li Lavxias xov xwm tshaj tawm xov xwm, Lavxias National Aerospace Corporation tau tsim cov ntaub ntawv tshiab rau kev siv hauv kev tsim cov tsheb tsav, cov dav hlau mus rau saum nruab ntug, lub dav hlau thiab lwm qhov chaw nkoj. Nyob rau tib lub sijhawm ntawd, cov tebchaws suav nrog Tebchaws Meskas thiab Lub Tebchaws Askiv tseem tab tom sib tham txog txoj kev tsim thiab ua cov thev naus laus zis ntawm cov ntaub ntawv ya nruab ntug tshiab thiab kev ua haujlwm ncaj qha ntawm cov khoom seem ntawm cov khoom siv ya thiab ua cuab yeej ntse. Yog li vim li cas thiaj li aerospace engineering tau mob siab rau kev tsim khoom?


Lub hauv paus ntawm lub chaw ua khoom lag luam


Lub nkoj huab yog cov tsheb uas tau khiav lag luam nyob rau hauv qhov chaw raws li cov kev cai ntawm cov khoom nruab qaum thiab ua tiav cov haujlwm tshwj xeeb xws li kev tshawb nrhiav, kev txhim kho, thiab kev siv qhov chaw thiab lub cev nyob saum ntuj. Lawv feem ntau yog foob pob ua ntxaij, satellites, thiab lub nkoj huab. Lawv yog tus" cov neeg sim ua ntej" ntawm noob neej hauv kev qhib thiab nthuav dav hauv lub ntiaj teb.


Txawm li cas los xij, qhov no" tho kev" tsis tsim nyog. Txhawm rau tawg ntawm qhov kev txwv ntawm lub ntiaj teb' s huab cua, lub dav hlau huab cua yuav tsim kev sib txhuam nrog cov huab cua thaum ya ntawm qhov siab ceev, thiab nws cov cua sov tuaj yeem ncav cuag ntau dua 2000 degrees Celsius. Thaum lub dav hlau ya tawm ntawm lub ntiaj teb chaw, ordeal yuav tsis nres nyob ntawd. Nyob rau hauv qhov chaw ib puag ncig, ultraviolet hluav taws xob, hluav taws xob tawg, hluav taws xob thermal, thiab lwm yam yuav coj ntau yam kev sib tw rau lub chaw ua si. Txawm tias nyob hauv qhov chaw nqus, nws yuav zoo li" cupping device" ;. Nws tseem kuaj qhov ua siab ntev ntawm lub plab huab cua.


Ntxiv rau, muaj cov kev hem thawj loj los ntawm cov khoom siv hauv thaj chaw xws li micro meteors hauv qhov chaw thiab cov khib nyiab hauv av. Lawv zoo li cov mos txwv tsis raug uas sim ntsuas" lub zog" ntawm qhov khoom siv ya, thiab tag nrho cov kev tshaj qhia saum toj saud tau ntsib los ntawm cov khoom siv huab cua yog Kom tau txais kev txhawb nqa los ntawm cov khoom siv ntawm lub nkoj huab.


Cov ntaub ntawv yog qhov tseem ceeb ntawm cov kev tshawb fawb niaj hnub no thiab thev naus laus zis, kev txhim kho thiab kev lag luam thiab kev ruaj ntseg hauv teb chaws. Ntau lub teb chaws hauv ntiaj teb tau suav nrog cov cuab yeej siv thev naus laus zis hauv lawv cov phiaj xwm kev tshawb fawb txog kev siv tshuab tseem ceeb hauv tebchaws. Qhov tos ntawm cov cuab yeej siv aerospace ntawm cov ntaub ntawv yog qhov tshwj xeeb tshaj plaws. Qhov no vim tias cov ntaub ntawv tsis yog tsuas yog cov neeg coj tiag tiag ntawm qhov chaw hnyav, tab sis qee zaum kuj tseem ua cov haujlwm tseem ceeb xws li kev siv hluav taws xob, tiv thaiv, thiab kub tawm.


Txawm li cas los xij, kev xaiv ntawm cov khoom siv hauv chaw nkoj tsis yog ib txoj haujlwm yooj yim. Ntawm ib sab tes, vim hais tias lub chaw nqaj hlau muaj cov qauv tsim puag ncig, suav nrog qhov yuav tsum tau muaj qhov kub tsis kam, kev cuam tshuam kev cuam tshuam, thiab txawm tias qhov kub tsis kam tiv thaiv, kev soj ntsuam zoo yuav tsum tau nqa tawm thiab raws li cov qauv tsim ntawm lub chaw hauv av, Tom qab hnyav ntau yam yuav tsum tau ua thiab cov xwm txheej, cov khoom haum yog thaum kawg txiav txim siab. Ntawm qhov tod tes, vim hais tias cov khoom siv uas twb muaj lawm yog qhov loj heev, cov ntaub ntawv tshiab tau tsim kho tas li.


Feem ntau hais lus, cov txheej txheem ntawm cov khoom siv ntawm qhov khoom siv huab cua yog qhov nyuaj heev, feem ntau suav nrog cov qauv ntaub ntawv uas paub qhov kev thauj khoom-kev coj tus kheej ntawm cov khoom siv huab cua, cov ntaub ntawv ua haujlwm uas paub qhov yuav tsum tau ua los ntawm kev tswj qhov kub thiab kub tiv taus, thiab roj los txhawb lub davhlau ntawm qhov chaw.


Tawv thiab nyias qauv ntaub ntawv


Cov txheej txheem khoom siv yog ua raws li cov khoom siv kho tshuab thiab yog cov khoom siv los tsim khoom siv-quab yuam cov kabmob. Cov khoom siv no zoo li cov pob txha ntawm qhov chaw nqaj hlau, qhov khoob ntawm nws cov duab.


Txawm li cas los xij, cov kev faib ua feem ntawm cov qauv hauv cov khoom hauv nkoj yog me heev. Nqa pob zeb ua piv txwv, qhov kev faib ua feem ntawm cov txheej txheem txheej txheem ntawm lub foob pob zeb plhaub hauv tag nrho yuav luag zoo tib yam li cov sib npaug ntawm cov qe plhaub hauv tag nrho cov qe. Qhov no vim tias ntawm pob zeb, cov roj yog" lub cev tuag" thiab tsis tuaj yeem muaj zog lossis nce ntxiv ntawm qhov yuav ua. Yog li cov kws tshawb nrhiav yuav muab lawv lub hlwb tso rau ntawm lub plhaub foob pob zeb thiab ua kom lub plhaub ntawm cov foob pob hluav taws kom tsawg dua kom txo qhov hnyav ntawm cov foob pob hluav taws.


Rau txhua txhua qhov hnyav ntawm lub foob pob' s qhov hnyav, nws tuaj yeem nce nws qhov hnyav ntawm ib phaus. Ib qho haujlwm tseem ceeb tuaj yeem ntxiv rau kev nqa lub hnub qub thiab cov dav hlau.


Thaum lub foob pob mus txog thawj lub cosmic ceev, nws Dais lub zog loj heev, uas tuaj yeem ncav cuag 7 zaug nws tus kheej qhov hnyav, uas yuav tsum muaj cov khoom siv los tiv thaiv nws. Tsis tsuas yog hais tias, thaum lub foob pob hluav taws tau ya, nws kuj ntsib lub zog loj tso cua sov uas tsim los ntawm kev sib txhuam nrog cov huab cua, thiab nws lub tshuab kuj ntsib nrog lub zog cua tsis txaus ntseeg.


Hauv qhov no, qhov sib dua qhov hnyav ntawm cov khoom siv txhim kho, qhov zoo dua, ntau dua qhov kub-tiv thaiv kub, qhov ua tau zoo dua, thiab muaj qee qhov qauv ntawm cov qauv tsim nyog. Txawm hais tias tungsten thiab lwm cov hlau tsis muaj hlau muaj qhov kub thiab txias zoo dua, lawv tus kheej ntom tau zoo heev, thiab tib lub sijhawm lawv kim heev thiab nyuaj rau cov duab, uas zoo heev tsim cov nqi tsim khoom.


Hauv qab ntau yam kev cuam tshuam, cov khoom siv hlau uas muaj hlau, uas yog, hlau, tau nkag mus rau thaj chaw ntawm lub zeem muag ntawm cov kws tshawb fawb. Txawm hais tias qhov kub-tiv taus kub ntawm cov hlau dog dig tsuas tuaj yeem ncav cuag li 1,000 degrees Celsius, kev siv npib tsib xee, cobalt, tungsten thiab lwm yam muaj peev xwm ua kom zoo tshaj qhov kub ntawm cov hlau, txawm tias ncav txog 1500 degrees Celsius, yog li nws tau npe [GG ] quot; superalloy" ;. Ib txhij. Cov khoom siv no kuj tseem yooj yim rau cov duab, yog li nws tas li yog lub darling ntawm spacecraft.


Tom qab ntawd, cov kws tshawb nrhiav nrhiav cov titanium alloys. Nrog tib lub zog, cov khoom siv no muaj qhov sib zog dua, yog li nws tau dhau los ua" qab zib thiab qab zib &; hauv cov khoom tsim cov khoom lag luam dav hlau. Txawm li cas los xij, vim hais tias qhov kub tsis kam ntawm titanium alloy yog qhov phem tshaj li ntawm qhov kub siab alloy, nws yuav tsum muaj lined nrog kub kub ua hauj cov ntaub ntawv.


Nrog kev nce qib ntawm noob neej' s kev tshawb nrhiav qhov chaw thiab kev loj hlob ntawm cov ntaub ntawv kev tshawb fawb, cov khoom siv sib txuas tau dhau los ua lub zog tshiab hauv cov khoom hauv txheej txheem ntuj. Piv txwv li cov pa roj carbon-carbon, carbon-silica thiab lwm cov ntaub ntawv-ua-tiav ceramic tsis tuaj yeem tsuas tiv taus qhov kub ntawm 2000 degrees Celsius, tab sis kuj tseem muaj lub teeb ceeb thawj heev.


Hauv ntej, qhov kev nce qib nrawm ntawm cov khoom siv thiab cov thev naus laus zis sib txuas ntxiv yuav txhawb nqa kev tsim kho tshuab aerospace, ua rau noob neej pom deb dua, pom meej dua, thiab mus deb dua thiab nyab xeeb dua.