Lub luag haujlwm tseem ceeb ntawm titanium thiab titanium alloy cov ntaub ntawv nyob rau hauv lub tshuab nqus dej ntsev ntau lawm kev lag luam

Titanium yog dav siv nyob rau hauv Aerospace, caij sov, submarines thiab kev lag luam kho mob. Nrog kev txhim kho ntawm cov txheej txheem thev naus laus zis, titanium tau siv ntau zuj zus hauv kev lag luam pej xeem kev sib tw yog ib qho ntawm cov chaw ua haujlwm ntxov tshaj plaws rau Titanium daim ntawv thov kev tshaj tawm.
Kuv lub teb chaws ntsev ua kev lag luam yog tsuas yog ua raws li ntsev hiav txwv, ua raws li cov ntsev thiab ntsev thiab ntsev. Txij li thaum xyoo 1950, lub tshuab nqus tsev ua cov tuam txhab tau tshwm sim maj mam. Nrog kev tsim kho tas li thiab kev tsim cov tshuab nqus tsev ua cov khoom lag luam cov khoom siv hluav taws xob ncaj qha cuam tshuam nrog kev ua tau zoo ntawm cov khoom muaj peev xwm thiab kev ua haujlwm ib txwm muaj. Corrosion ua rau muaj kev tu xyuas nquag nquag ntawm cov khoom siv thiab cov dej xau ntau, uas tau dhau los ua qhov teeb meem tseem ceeb thiab kev xav tau daws. Qhov tseeb xaiv ntawm corrosion-resistant cov khoom siv haum rau cov ntsev ua kom muaj kev lag luam kuj tau muab kev nrawm rau cov txheej txheem. Titanium thiab titanium alloys tau kuj zoo heev rau dej hiav txwv thiab chloride daws kev xeb thiab kua yaig. Txij li xyoo 1975, Hunan Xiangli ntsev, xws li Nyob rau hauv 150, {5}} tuj tuj ua kom zoo nkauj ntsev los ntawm yingkou ntsev tshuaj tsob nroj, titanium kuj tau xaiv rau nws cov ntsev evaporation. Nyob rau xyoo 1990, titanium tseem dav hauv kev hloov pauv cua sov hauv kuv lub teb chaws ntsev kev lag luam. Hauv cov txheej txheem ntsev ntau lawm, cov teeb meem corrosion ntawm ntsev slurry pipelines tshwj xeeb tshaj yog muaj tshwj xeeb. Thaum siv cov xaim hluav taws xob steel, qis dua ntawm cov yeeb nkab yuav corrocomb lub hli nyob rau hauv ib hlis, thiab ntsev slurry pipel yuav tsum tau hloov mus txog 6 zaug ib xyoos. Txawm hais tias Stainless hlau siv, corrosion perforation yuav tshwm sim tom qab 4 lub hlis. Nyob rau tib lub sijhawm, corrosion thiab lwm cov hlau sib txuas rau hauv lub brine, uas muaj kev cuam tshuam zoo rau cov ntsev zoo. Tsis tas li ntawd, kev ntxhib ntawm lub tank phab ntsa xws li cov hlau hlau kuj ua rau muaj teeb meem fouling ntau dua. Raws li lub sijhawm dhau mus, kev fouling yuav dhau los ua thicker thiab nws thiaj li thaiv cov pa hluav taws, thiab txawm tias thaiv cov pa hluav taws xob, thiab yooj yim Lub cev muaj zog nyob rau hauv cov neeg mob hnyav. Txhawm rau muab cov khoom siv scanium ntau ntxiv rau kev xaiv titanium kua ntsev ua haujlwm rau cov ntawv nyeem ntsev ntawm cov ntsev ntau lawm. Cov ntaub ntawv xeem qhia tias Titanium muaj cov tshuaj tiv thaiv corrosion tsis kam raws li qhov tseeb ntawm chloride thiab lub tshuab nqus tsev ntsev. Tom qab siv titanium, vim nws corrosion tsis kam thiab tsis muaj teeb meem los ntawm kev txhim kho ntsev kom zoo thiab loj ntawm cov khoom siv ntau lawm. Nws tuaj yeem hais tau tias daim ntawv thov ntawm Titanium tau coj cov kev hloov tshiab hauv cov khoom xaiv ntawm lub tshuab nqus ntsev ntau lawm.
Hauv lub tshuab nqus tsev ntsev ntau lawm txheej txheem, chav cua sov yog cov khoom tseem ceeb tshaj plaws. Nrog rau kev yug thiab kev txhim kho ntawm titanium alloys, lawv tau raug txhawb nqa rau cov ntsev ntau lawm kev lag luam los ntawm lawv cov zoo heev rau chloride ions. Cov ntsev nyeg tsim khoom plaub txheej tshuab nqus cov txheej txheem ntsev ntau lawm, thiab titanium yog siv hauv kev hloov cua sov thiab kev sib pauv hlab. Lub tshav kub sib pauv raj yog feem ntau 9 meters ntev thiab phab ntsa tuab yog nruab nrab ntawm {2}}. 8 thiab 1.5 hli. Titanium muaj ob peb impurities nyob rau saum npoo thiab muaj zog corrosion tsis kam, yog li nws tsis yooj yim rau corrode per corrooforel thiab raj xa hluav taws xob. Nyob rau hauv tib lub cua sov hloov kev ua tau zoo, Titanium cua sov chav ua haujlwm muaj qhov zoo ntawm lub teeb hnyav thiab ntim me me piv nrog cov yeeb nkab steel cua sov. Nyob rau tib lub sijhawm, hauv cov txheej txheem ntsev ntau lawm, cov hlaws ua ntej yog cov khoom tseem ceeb. Hauv ib puag ncig hauv qab no 100 degree, titanium muaj muaj zog corrosion tsis kam nyob rau hauv nacl (sodium chloride) tov. Yog li ntawd, kev siv titanium nyob rau hauv kev tsim cov brine preheater leeg bundles thiab lub taub hau sib xyaw los ntawm NacL daws, yog li ua kom muaj kev siv cov khoom siv ib txwm siv. Nrog rau qhov tob ntawm kev nkag siab ntawm titanium kev ua tau zoo thiab daim ntawv thov, titanium thiab nws cov alloys tau nce zuj zus thiab thov hauv lub tshuab nqus tsev ua lag luam. Lub tshuab nqus tsev ua lag luam ua kev lag luam tau dhau los ua ib qho ntawm cov neeg siv loj ntawm titanium thiab titanium steel sib xyaw.