Vim tias nws cov thermodynamically tsis ruaj khov, yog li ntawd, titanium ntshiab tsis muaj nyob hauv qhov xwm txheej. Nrog rau tus qauv electrode muaj peev xwm ntawm -1.63V, titanium thiab nws cov alloys yooj yim tsim ib qho kev tiv thaiv thiab zoo heev oxide zaj duab xis (tsuas yog TiO2) nyob rau hauv atmospheric thiab aqueous ib puag ncig. Qhov no oxide zaj duab xis tso titanium nyob rau hauv lub xeev passivated, ua rau nws heev corrosion-resistant nyob rau hauv ntau corrosive ib puag ncig.
Tom qab passivation, tus kheej-corrosion peev xwm ntawm titanium thiab nws cov alloys ho nce. Lub ntuj corrosion muaj peev xwm ntawm titanium hauv dej hiav txwv ntawm 25 degree yog nyob ib ncig ntawm 0.1V. Cov zaj duab xis passivation ntawm titanium muaj qhov zoo ntawm tus kheej zoo. Yog tias cov zaj duab xis passivation puas lawm, nws tuaj yeem kho tau sai (hauv 10 vib nas this) kho nws tus kheej, tsim cov yeeb yaj kiab tiv thaiv tshiab.
Cov oxide zaj duab xis tsim ntawm qhov kub qis dua 300 degree yog tuab heev thiab muab kev tiv thaiv zoo tiv thaiv corrosion. Titanium lub peev xwm los tiv thaiv corrosion nyob rau hauv marine ib puag ncig, ua ke nrog nws cov cim passivation zog, ua rau nws yog ib qho khoom tsim nyog rau ntau yam kev siv, tshwj xeeb tshaj yog nyob rau hauv kev lag luam uas muaj kev nyuaj corrosive tej yam kev mob.
Kev ua tau zoo ntawm Kev Siv Hluav Taws Xob Loj Loj
Tsis muaj kev siv thev naus laus zis rau kev siv loj ntawm titanium alloys hauv marine engineering.
Vuam Teebmeem
On-site vuam ntawm titanium alloys tsis muaj teeb meem loj. Cov txheej txheem vuam hauv tsev rau titanium alloys yog cov paub tab, tshwj xeeb tshaj yog rau qib naval-qib titanium alloys xws li TA2, Ti50, Ti75, thiab lwm yam.
Teeb meem tshuaj xyuas
Welded pob qij txha ntawm titanium alloys thiab lwm yam khoom muaj feem xyuam nrog kev soj ntsuam raws li cov qauv sib xws thiab muaj cov khoom siv txav tau yooj yim, ua kom muaj kev soj ntsuam zoo ntawm qhov chaw.
Kev pom zoo rau Seawater Pipeline Alloys
Nyob rau hauv cov xwm txheej uas tsis tshua muaj siab nyob rau hauv seawater pipelines, TA2 alloy yog pom zoo. Cov alloy no nthuav tawm cov ntsuas kev ua haujlwm ntawm Rm Ntau dua lossis sib npaug rau 400MPa, Rp0.2 Ntau dua lossis sib npaug rau 320MPa, A Ntau dua lossis sib npaug li 20%. TA2 alloy yog ib qho ntawm cov qib titanium feem ntau siv tam sim no. Nws muaj peev xwm ua tau zoo heev, cov txheej txheem ua tiav, thiab cov nqi tsim khoom qis dua.
Rau cov xwm txheej uas muaj kev ntxhov siab ntau dua, lwm cov titanium alloys uas muaj zog sib txawv tuaj yeem raug txiav txim siab raws li qhov ntsuas siab, xws li Ti50, Ti75, thiab cov alloys zoo sib xws. Cov alloys no kuj muaj cov cuab yeej zoo machining thiab tuaj yeem ua tiav hauv cov kav dej.
Qhov ntom ntawm titanium alloys me me, tsuas yog 0.577 npaug ntawm cov hlau. Nyob rau tib lub sijhawm, kev siv cov khoom siv titanium alloy tuaj yeem tshem tawm cov nqi kho thiab hloov pauv tom ntej, nrog rau cov nqi pheej hmoo siab dua cuam tshuam nrog corrosion.
Tam sim no, titanium alloy cov ntaub ntawv nqi yog nyob rau hauv keeb kwm qis. Tus nqi ntawm daim txhuam cev titanium tau poob los ntawm 200, 000 yuan/ton hauv 2006 mus rau 46, 000 yuan/ton. Nrog rau kev txhim kho tas mus li hauv kev muaj peev xwm ua tiav, cov nqi ua haujlwm ntawm titanium alloy kav kuj tau txo qis. Cov xwm txheej no nthuav tawm txoj hauv kev zoo rau kev siv dav dav ntawm titanium alloys.
