Lub cev muaj zog ntawm aluminium
Nov 19, 2022
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{{ 8}}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 (chaw kub) 25 degree yog 0.0000236mm / degree los yog 23.6ppm * k-1.








