Titanium M3 M4 M6 M8 Hex Titanium Bolts

Qhov ceev ntawm titanium yog 4.51g / cm3, uas yog 57% ntawm cov hlau. Titanium tsawg dua ob zaug hnyav li txhuas thiab peb zaug muaj zog dua li txhuas. Lub zog tshwj xeeb (lub zog / qhov sib piv) ntawm titanium alloy yog qhov loj tshaj plaws ntawm cov khoom siv feem ntau siv (saib Table 2-1). Lub zog tshwj xeeb ntawm titanium alloy yog 3.5 npaug ntawm stainless hlau; 1.3 npaug ntawm aluminium alloy; 1.7 npaug ntawm magnesium alloy. Yog li ntawd, nws yog ib qho khoom siv tsis tseem ceeb rau kev lag luam aerospace.

Lub passivity ntawm titanium nyob ntawm seb lub neej ntawm oxide zaj duab xis, thiab nws cov corrosion kuj nyob rau hauv oxidizing nruab nrab yog zoo dua li nyob rau hauv txo qhov nruab nrab. Cov nqi siab ntawm corrosion tshwm sim hauv kev txo cov xov xwm. Titanium tsis corroded nyob rau hauv ib co corrosive media, xws li seawater, ntub chlorine, chlorite thiab hypochlorite daws, nitric acid, chromic acid, hlau chlorides, sulfides thiab organic acids. Txawm li cas los xij, nyob rau hauv nruab nrab (xws li hydrochloric acid thiab sulfuric acid) uas reacts titanium los tsim hydrogen, titanium feem ntau muaj tus nqi loj corrosion. Txawm li cas los xij, yog tias ib qho me me ntawm oxidant ntxiv rau cov kua qaub, ib zaj duab xis passivation yuav tsim rau ntawm titanium nto. Yog li ntawd, titanium yog corrosion-resistant nyob rau hauv ib tug sib tov ntawm muaj zog sulfuric acid-nitric acid los yog hydrochloric acid-nitric acid, txawm nyob rau hauv hydrochloric acid muaj dawb chlorine. Titanium's tiv thaiv oxide zaj duab xis yog feem ntau tsim thaum cov hlau los rau hauv kev sib cuag nrog dej, txawm nyob rau hauv me me dej los yog chav. Yog tias titanium raug rau qhov chaw muaj zog oxidizing yam tsis muaj dej, nws yuav oxidize sai thiab ua rau muaj kev kub ntxhov, thiab txawm tias combustion feem ntau tshwm sim. Cov xwm txheej zoo li no tau tshwm sim nrog cov tshuaj tiv thaiv ntawm titanium nrog fuming nitric acid uas muaj ntau tshaj nitrogen oxides thiab nrog cov roj chlorine qhuav. Yog li txhawm rau tiv thaiv cov tshuaj tiv thaiv zoo li no, yuav tsum muaj qee qhov dej.

Feem ntau txhuas poob nws cov khoom qub ntawm 150 degree, stainless hlau ntawm 310 degree, thiab titanium alloys tseem tuav cov khoom zoo ntawm li 500 degree. Thaum qhov ceev ntawm lub dav hlau mus txog 2.7 npaug ntawm lub suab ceev, qhov kub ntawm lub dav hlau qauv nce mus txog 230 degree, aluminium alloys thiab magnesium alloys tsis tuaj yeem siv, thaum titanium alloys tuaj yeem ua tau raws li qhov yuav tsum tau ua. Titanium muaj cua sov zoo, thiab nws yog siv nyob rau hauv cov discs thiab hniav ntawm aeroengine compressors thiab daim tawv nqaij ntawm lub rear fuselage ntawm aircraft.

Siv cov titanium thiab lwm yam khoom siv hlau (tooj liab, hlau) los ua lub tswb nrog cov duab zoo ib yam thiab loj. Yog tias koj ntaus txhua lub tswb nrog lub zog tib yam, koj yuav pom tias lub suab ntawm lub tswb ua los ntawm titanium oscillates tau ntev, uas yog, los ntawm lub zog muab rau lub moos los ntawm khob tsis yooj yim ploj, yog li peb hais tias titanium. muaj tsawg damping kev ua tau zoo.

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