Lub cev thiab tshuaj lom neeg ntawm Cov Hlau Txhuas

Aluminium yog nyiaj-dawb lub teeb hlau. Nws yog malleable. Cov khoom lag luam feem ntau ua rau hauv kab, pas nrig, ntawv, ntawv ci, hmoov, ribbons thiab filaments. Nyob rau hauv cov huab cua ntub tuaj yeem tsim ib txheej ntawm oxide zaj duab xis los tiv thaiv hlau corrosion. Aluminium hmoov kho nrog acid yog rhuab nyob rau hauv cov huab cua thiab kub hnyiab, emitting ib tug blinding dawb nplaim taws. Soluble nyob rau hauv dilute sulfuric acid, dilute nitric acid, hydrochloric acid, sodium hydroxide thiab poov tshuaj hydroxide tov, insoluble nyob rau hauv dej, tab sis muaj peev xwm reacts maj mam nrog dej kub los tsim aluminium hydroxide, txheeb ze ntom ntom 2.70, elastic modulus 7{{ 9}}Gpa, Poisson tus piv 0.33. Melting point 660 degree. Kub taw tes 2327 degree. Nws yog dav siv rau nws lub teeb yuag, zoo hluav taws xob thiab thermal conductivity, siab reflectivity thiab oxidation kuj. Cov txhuas siv rau niaj hnub siv feem ntau hu ua "steel essence" lossis "steel seed". Lub thermal expansion coefficient ntawm Al ntawm (chav kub) 25 degree yog 0.0000236mm / degree los yog 23.6ppm * k-1.

Aluminium yog ib qho khoom siv hlau. Nyob rau hauv cov huab cua qhuav, ib tug tuab oxide zaj duab xis ntawm txog 50 angstroms (1 angstroms =0.1 nm) yog tsim tam sim ntawd rau saum npoo ntawm txhuas, thiaj li hais tias txhuas yuav tsis tau oxidized ntxiv thiab tiv taus dej. Tab sis hmoov txhuas, thaum tov nrog cua, hlawv yooj yim; Molten aluminium ib qho hlau uas tuaj yeem sib haum nrog dej; Aluminium yog amphoteric thiab soluble nyob rau hauv muaj zog bases thiab dilute acids.