Titanium: Lub caij ntuj sov hlau

Hauv tsev neeg ntawm cov khoom siv tshuaj, titanium tau nyiam ntau yam rau nws cov khoom tshwj xeeb thiab ntau yam kev siv. Titanium, tshuaj cim Ti, atomic naj npawb 22, los ntawm cov tsos ntawm ib tug silver grey metallic luster, qhov no low-key xim tab sis zais ntau yam zoo heev.

Ib qho ntawm cov yam ntxwv zoo tshaj plaws ntawm titanium yog nws txoj kev sib xyaw ua ke zoo tshaj plaws ntawm qhov tsis tshua muaj siab thiab lub zog siab.

Piv nrog rau cov hlau tsoos, nws yog qhov ntom ntom, tsis tau tuaj yeem tiv taus siab thiab hnyav. Cov yam ntxwv no zoo li yog tias tsim nyog rau kev lag luam aerospace, hauv kev tsim cov dav hlau, titanium yog siv ntau los ua cov khoom siv cav thiab cov fuselage thiab lwm yam tseem ceeb. Lub cav yog "lub plawv" ntawm lub dav hlau, thiab cov khoom ua los ntawm titanium alloy tuaj yeem ua haujlwm ruaj khov hauv qhov hnyav ntawm qhov kub thiab txias siab, thaum txo qhov hnyav tag nrho ntawm lub cav thiab txhim kho roj efficiency. Lub fuselage ncej txais cov khoom siv titanium, uas tsis tsuas yog ua kom lub cev muaj zog ntawm lub dav hlau thaum lub davhlau, tab sis kuj tuaj yeem tiv nrog ntau yam kev hloov pauv huab cua thiab kev hloov pauv huab cua, thiab tuaj yeem txo qhov hnyav ntawm lub dav hlau nws tus kheej, nce cov neeg caij tsheb lossis cargo muaj peev xwm, uas tau coj lub luag hauj lwm loj hlob rau txoj kev loj hlob ntawm aviation kev lag luam. Piv txwv li, lub dav hlau nto moo Boeing 787 siv ntau cov ntaub ntawv titanium alloy, ua rau nws muaj kev cuam tshuam loj hauv kev ua haujlwm thiab kev lag luam.

Kev tiv thaiv corrosion ntawm titanium yog qhov zoo tshaj plaws.

Txawm hais tias nws yog nyob rau hauv cov dej hiav txwv ib puag ncig uas muaj ntsev, los yog nyob rau hauv cov huab cua ntub nrog cov av noo siab, los yog nyob rau hauv kev yaig ntawm cov tshuaj corrosive xws li acid thiab alkali, titanium tuaj yeem muaj kev nyab xeeb thiab suab thiab ib txwm tswj nws tus kheej ruaj khov. Hauv kev lag luam chemical, ntau cov tshuaj tiv thaiv yuav tsum tau ua nyob rau hauv cov ntim tshwj xeeb thiab cov khoom siv, thiab ntau cov tshuaj muaj corrosive heev, thiab cov khoom siv hlau zoo tib yam nyuaj rau lub sijhawm ntev. Cov cuab yeej siv tshuaj titanium tuaj yeem daws tau qhov teeb meem no tau yooj yim, txuas ntxiv lub neej kev pab cuam ntawm cov cuab yeej siv, txo cov kev pheej hmoo ntawm kev nyab xeeb thiab cov nqi kho mob los ntawm cov khoom siv corrosion. Nyob rau hauv Marine engineering, seawater desalination nroj tsuag thiab nkoj Cheebtsam tau nyob rau hauv kev sib cuag nrog seawater rau lub sij hawm ntev thiab tab tom ntsib loj corrosion hem. Daim ntawv thov ntawm titanium ua kom muaj kev ntseeg siab thiab ua haujlwm ntev ntawm cov khoom siv thiab cov khoom siv no, muab kev lav zoo rau kev daws teeb meem ntawm kev tsis txaus dej hauv ntiaj teb thiab kev txhim kho thiab kev siv cov peev txheej Marine. Piv txwv li, cov khoom tseem ceeb ntawm qee qhov loj desalination nroj tsuag yog ua los ntawm titanium alloy, uas tuaj yeem hloov dej hiav txwv zoo rau hauv dej tshiab thiab ua haujlwm ruaj khov rau lub sijhawm ntev.

Biocompatibility yog lwm yam khoom tseem ceeb ntawm titanium.

Tib neeg lub cev nyiam tsis lees txais cov khoom txawv teb chaws, tab sis titanium tuaj yeem koom ua ke nrog tib neeg cov ntaub so ntswg. Qhov no ua rau titanium yog qhov chaw tseem ceeb hauv kev kho mob. Artificial sib koom ua ke yog ib tug neeg sawv cev ntawm titanium nyob rau hauv daim ntawv thov kev kho mob, rau cov neeg mob uas raug kev txom nyem los ntawm cov kab mob sib koom tes, titanium dag pob qij txha tuaj yeem hloov cov kev sib koom ua ke, rov ua haujlwm zoo ntawm kev sib koom tes, thiab vim nws cov biocompatibility zoo, tib neeg lub cev yuav luag. tsis kam lees nws, zoo heev txhim kho qhov kev vam meej ntawm kev phais thiab lub neej zoo ntawm cov neeg mob tom qab kev phais. Kev kho hniav yog ib qho tseem ceeb ntawm daim ntawv thov ntawm titanium, titanium hniav cov hauv paus hniav tuaj yeem ua ke nrog cov pob txha alveolar, muab kev txhawb nqa ruaj khov rau cov hniav hniav, kom cov neeg mob tuaj yeem rov qab noj qab haus huv cov hniav thiab zom zom zoo.

Txawm hais tias cov ntsiab lus ntawm titanium nyob rau hauv lub crust yog cov nplua nuj, suav txog li ntawm 0.63% ntawm qhov loj ntawm cov crust, nws nyob rau qib plaub hauv cov hlau, thib ob tsuas yog txhuas, hlau thiab magnesium. Hmoov tsis zoo, cov txheej txheem refining yog qhov nyuaj heev. Feem ntau titanium ores xws li rutile thiab ilmenite xav tau cov txheej txheem tshuaj lom neeg thiab lub cev kom tshem tawm titanium thiab siv rau kev tsim khoom. Ua ntej tshaj plaws, nws yog ib qho tsim nyog yuav tsum tau mloog zoo rau cov ore, thiab tom qab ntawd siv cov chlorination kub thiab lwm txoj hauv kev los hloov titanium rau hauv titanium tetrachloride, thiab tom qab ntawd tau txais daim txhuam cev titanium los ntawm magnesium thermal txo los yog sodium thermal txo thiab lwm yam txheej txheem, thiab thaum kawg los ntawm ib tug series. ntawm cov kauj ruam xws li refining kom tau titanium hlau los yog titanium alloy rau industrial siv. Cov txheej txheem ntawm kev ua kom zoo li no tsis yog tsuas yog kim xwb, tab sis kuj tseem muaj cov kev xav tau siab heev, uas tseem txwv qhov kev nthuav dav loj ntawm titanium rau qee yam, tab sis nrog kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis, titanium refining thev naus laus zis kuj maj mam txhim kho. thiab txhim kho.

Titanium, ib lub zog hlau nrog nws lub ntom ntom nti, muaj zog, muaj zog biocompatient thiab ntau lwm yam zoo bierpaceable tseem ceeb hauv aerospaceable tseem ceeb hauv aerospace, tshuaj, kho mob thiab lwm daim teb. Nrog rau kev txhim kho txuas ntxiv ntawm kev tshawb fawb thiab thev naus laus zis, nws ntseeg tau tias daim ntawv thov kev cia siab ntawm titanium yuav dav dua, nws tseem yuav ci ntsa iab hauv kev taug kev ntawm tib neeg kev tshawb nrhiav ntawm cov neeg tsis paub thiab txhim kho lub neej, muab cov khoom siv hauv paus rau kev tsim kho tshiab thiab kev vam meej. ntawm ntau yam kev lag luam, thiab dhau los ua qhov tseem ceeb ntawm lub zog los txhawb txoj kev loj hlob ntawm kev tshawb fawb niaj hnub thiab thev naus laus zis thiab kev lag luam.

Cov ntsiab lus Source: Creation