titanium hlau muaj zog npaum li cas?
Qhia
Titanium yog cov khoom siv tshuaj nrog cov cim tshuaj Ti, atomic tooj 22, thiab atomic hnyav 47.867 u. Titanium yog ib qho nyiaj-dawb hloov hlau uas muaj lub cev nyhav, lub zog siab, nws yog xim hlau luster, thiab zoo corrosion kuj (xws li dej hiav txwv, aqua regia thiab chlorine). Vim nws cov khoom siv tshuaj ruaj khov, kev ua haujlwm zoo rau qhov kub thiab txias, tsis tshua muaj kub, muaj zog acid thiab alkali tsis kam, nrog rau lub zog siab thiab qhov ntom ntom, nws feem ntau siv los ua cov foob pob hluav taws thiab cov khoom siv dav hlau, yog li nws yog hu ua "qhov chaw hlau" .
titanium hlau muaj zog npaum li cas?
Titanium yog cov khoom siv hlau nrog cov khoom siv zoo, thiab nws cov Rockwell hardness feem ntau yog nyob nruab nrab ntawm 200-300. Tus nqi tshwj xeeb yuav raug cuam tshuam los ntawm yam xws li titanium alloy muaj pes tsawg leeg thiab cov txheej txheem kho cua sov. Feem ntau hais lus, Rockwell hardness ntawm ntshiab titanium yog hais txog 200, thaum Rockwell hardness ntawm titanium alloys ncav cuag ntau tshaj 250.
Qhov ceev ntawm titanium alloys feem ntau yog nyob ib ncig ntawm 4.5g / cm3, uas tsuas yog 60% ntawm cov hlau. Lub zog ntawm ntshiab titanium yog ze rau lub zog ntawm cov hlau zoo tib yam. Qee qhov muaj zog titanium alloys siab tshaj lub zog ntawm ntau cov qauv hlau alloy. Yog li ntawd, lub zog tshwj xeeb (lub zog / ntom) ntawm titanium alloy yog ntau dua li ntawm lwm cov khoom siv hlau, raws li qhia hauv lub rooj. Cov khoom thiab cov khoom siv nrog lub zog siab, zoo rigidity, thiab lub teeb yuag tuaj yeem tsim tau. Tam sim no, titanium alloys yog siv nyob rau hauv aircraft engine Cheebtsam, ncej, tawv, fasteners thiab tsaws iav.
Titanium hlau lub cev muaj zog
Ntawm cov khoom siv hlau, titanium muaj lub zog tshwj xeeb. Nws yog cov hlau uas muaj zog heev tab sis tsis tshua muaj hlau uas yog cov ductile heev (tshwj xeeb tshaj yog thaum tsis muaj oxygen). Qhov saum npoo ntawm titanium muaj silvery dawb metallic luster. Nws cov ntsiab lus melting yog siab heev (tshaj 1,649 degrees Celsius), yog li nws yog cov khoom siv hlau refractory zoo. Nws yog paramagnetic thiab muaj hluav taws xob tsawg heev thiab thermal conductivity.
Titanium hlau chemical zog
Reactivity: Reactivity zoo heev, tab sis kuj ruaj khov nyob rau hauv ib txwm tej yam kev mob. Nws tsis yooj yim oxidized nyob rau hauv cov huab cua vim hais tias ib tug nyias tiv thaiv zaj duab xis ntawm titanium oxide (TiO2) yog tsim los tiv thaiv oxidation ntxiv. Txawm li cas los xij, ntawm qhov kub thiab txias, titanium tuaj yeem ua rau cov khoom xws li oxygen, nitrogen thiab carbon.
Cov tshuaj tiv thaiv nrog acids: zoo corrosion kuj, resistant rau cov acids thiab alkalis. Qhia tau hais tias muaj zog corrosion kuj nyob rau hauv feem ntau non-oxidizing acids, xws li sulfuric acid thiab hydrochloric acid.
Oxidizing zog: Titanium muaj siab oxidizing zog thiab tuaj yeem tsim ntau yam oxidation xeev. Cov xeev oxidation muaj xws li +2, +3+4. Qhov no ntau yam oxidation xeev feature tso cai rau titanium tiv nrog ntau yam tshuaj ib puag ncig nyob rau hauv ntau yam kev mob.
Solubility: Titanium yog insoluble nyob rau hauv feem ntau cov kuab tshuaj. Qhov no muab nws superior stability nyob rau hauv ntau industrial thiab lab daim ntaub ntawv.
Cov khoom siv hlau: Nws yog cov hlau hloov pauv nrog cov khoom siv hlau, suav nrog hluav taws xob thiab thermal conductivity. Txawm li cas los xij, piv rau qee qhov kev hloov pauv hlau, titanium yog qhov hnyav dua thaum tuav lub zog siab.
Alloy forming: Titanium feem ntau yog siv los tsim ntau yam alloys, xws li titanium alloys, uas feem ntau muaj lub zog zoo, corrosion kuj, thiab tsis tshua muaj ntom, ua rau lawv siv dav hauv aerospace, kev kho mob, thiab tshuaj lom neeg kev lag luam.
Cov ntsiab lus
Hauv cov ntsiab lus, nrog kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis tsis tu ncua, kev tshawb fawb thiab kev siv cov titanium hlau hauv cov ntaub ntawv tshawb fawb yuav txuas ntxiv mus ntxiv. Nws cia siab tias nrog kev tsim kho tshiab hauv kev tsim cov thev naus laus zis, peb yuav pom kev siv titanium hauv ntau qhov chaw los txhim kho cov khoom lag luam thiab kev ruaj khov. Lub zog zoo tshaj ntawm titanium ua rau nws yog qhov kev xaiv zoo tshaj plaws hauv ntau qhov chaw, ua kom pom qhov ntxim nyiam ntawm cov tawv tawv loj ntawm lub teeb thiab lub teeb.
