Aluminium yog ib qho khoom siv hlau yog cov nyiaj dawb-dawb lub teeb hlau uas yog malleable.Cov khoom lag luam feem ntau yog ua los ntawm cov pas nrig, cov ntawv, cov ntawv ci, hmoov, ribbons thiab filaments.Nyob rau hauv cov huab cua ntub, nws tuaj yeem tsim cov oxide zaj duab xis uas tiv thaiv hlau corrosion.Cov hmoov txhuas tuaj yeem kub hnyiab tau thaum cua sov hauv huab cua, thiab emit ib tug dazzling dawb nplaim taws.Soluble nyob rau hauv dilute sulfuric acid, nitric acid, hydrochloric acid, sodium hydroxide thiab poov tshuaj hydroxide tov, insoluble nyob rau hauv dej.Tus txheeb ze ntom ntom 2.70.Melting point 660 ℃.Kub taw tes 2327 ℃.Cov ntsiab lus ntawm txhuas nyob rau hauv lub ntiaj teb crust yog thib ob tsuas yog oxygen thiab silicon, qeb thib peb, thiab nws yog cov hlau ntau tshaj plaws nyob rau hauv lub ntiaj teb crust.Txoj kev loj hlob ntawm peb txoj kev lag luam tseem ceeb ntawm kev lag luam aviation, kev tsim kho thiab tsheb yuav tsum muaj cov khoom siv kom muaj cov khoom tshwj xeeb ntawm txhuas thiab nws cov alloys, uas txhawb kev tsim khoom thiab kev siv ntawm cov hlau tshiab no.Daim ntawv thov yog dav heev.
01. Lub teeb yuag, muaj zog tshwj xeeb thiab corrosion kuj ntawm txhuas yog cov yam ntxwv zoo ntawm nws cov kev ua tau zoo.Aluminium muaj qhov ntom ntom ntawm 2.7 g / cm3
Txawm hais tias nws yog mos, nws tuaj yeem ua rau ntau yam aluminium alloys, xws li tawv txhuas, super tawv aluminium, xeb-pov thawj aluminium, cam khwb cia txhuas, thiab lwm yam. Cov txhuas alloys no tau siv dav hauv dav hlau, tsheb, tsheb ciav hlau, nkoj thiab lwm yam. kev lag luam.Tsis tas li ntawd, qhov chaw foob pob hluav taws, qhov chaw shuttles, thiab cov khoom siv satellites kuj tseem siv ntau ntawm txhuas thiab nws cov aluminium alloys.
02. Lub zog tshwj xeeb ntawm aluminium alloy yog siab
03. Zoo corrosion kuj
Aluminium yog cov hlau reactive heev, tab sis nws ruaj khov nyob rau hauv oxidizing ib puag ncig.Qhov no yog tsim los ntawm oxide zaj duab xis rau saum npoo ntawm txhuas hauv cov pa oxygen, oxygen thiab lwm yam oxidants.Aluminium oxide zaj duab xis tsis tsuas yog muaj zog tiv thaiv corrosion, tab sis kuj muaj qee qhov kev rwb thaiv tsev.
04. Lub conductivity ntawm txhuas yog thib ob tsuas yog nyiaj, tooj liab thiab kub
Txawm hais tias nws cov conductivity tsuas yog 2/3 ntawm tooj liab, nws qhov ceev tsuas yog 1/3 ntawm tooj liab, yog li kom xa cov hluav taws xob tib yam, qhov zoo ntawm txhuas hlau tsuas yog ib nrab ntawm cov tooj liab hlau.Yog li ntawd, txhuas muaj ntau yam kev siv hauv kev lag luam khoom siv hluav taws xob, kev lag luam hlau thiab cable thiab kev lag luam hauv xov tooj cua.
05. Aluminium yog ib tug zoo conductor ntawm tshav kub
Nws cov thermal conductivity yog 3 zaug ntau dua li cov hlau thiab 10 npaug ntawm cov hlau tsis muaj steel.Aluminium tuaj yeem siv rau hauv kev lag luam los tsim ntau yam khoom siv hluav taws xob, cov khoom siv hluav taws xob thiab cov khoom siv ua noj.
06. Aluminium muaj ductility zoo
Nws yog qhov thib ob tsuas yog kub thiab nyiaj hauv ductility thiab tuaj yeem ua rau hauv foils thinner dua 0.006 hli.Cov aluminium foils no tau dav siv rau ntim cov luam yeeb, khoom qab zib, thiab lwm yam. Lawv tuaj yeem ua rau hauv txhuas hlau thiab strips, extruded rau ntau yam khoom tshwj xeeb, thiab tuaj yeem dov rau hauv ntau yam khoom txhuas.Aluminium tuaj yeem txiav, drilled thiab welded los ntawm cov txheej txheem pa.
07. Aluminium tsis sib nqus
Nws tsis tsim cov hlau nplaum ntxiv thiab tsis cuam tshuam nrog cov cuab yeej precision.
08. Txhuas muaj suab-absorbing zog, thiab lub suab nyhuv kuj zoo dua
Yog li ntawd, aluminium kuj tseem siv rau cov ceilings hauv chav tshaj tawm thiab cov tsev loj loj niaj hnub.
Post lub sij hawm: Lub Xya hli ntuj-28-2022