Ntev npaum li cas aluminium oxidize thiab corrode tom qab siv?
Lub ntsiab tseem ceeb ntawm aluminium yog aluminium thiab ib qho me me ntawm cov khoom siv alloy.Qee tus neeg xav tias txhuas tsis yooj yim rau oxidize vim tias muaj cov xim hloov me ntsis.Qhov tseeb, txhuas yog cov hlau nquag, yooj yim rau oxidize dua hlau.Qhov laj thawj yog vim li cas nws tsis pom yog vim qhov txhuas oxide tsim tom qab oxidation tsis muaj xim thiab pob tshab.Thiab txheej txheej ntawm oxide zaj duab xis no cais cov aluminium sab hauv thiab huab cua sib cuag, yog li nws yuav tsis txuas ntxiv mus rau oxidize, thiab yog li tiv thaiv aluminium substrate.Yog li aluminium yog ruaj txawm tias tsis muaj kev kho deg.
Tab sis oxide zaj duab xis yog tsis invulnerable, txhuas oxide yog active rau acid thiab alkali, nyob rau hauv ib puag ncig nrog corrosive huab cua, oxide zaj duab xis yog yooj yim puas, ua rau corrosion ntawm aluminium substrate, puas.Yog tias siv sab nraum zoov, lub hnub raug, thiab cov dej acidic los nag yuav ua rau lub zog ntawm txhuas.Yog li ntev npaum li cas cov txhuas profile yuav oxidize thiab corrode thaum siv kuj yog nyob ntawm ib puag ncig thiab nws cov kev kho deg.Kev kho saum npoo ntawm aluminium profiles suav nrog anodic oxidation, electrophoresis, txau, electroplating, thiab lwm yam. Anodic oxidation yog ib txoj hauv kev electrochemical uas tsim cov oxide zaj duab xis rau saum npoo ntawm aluminium profiles, uas yog thicker dua li cov khoom tsim oxide zaj duab xis thiab nws yog. resistant rau corrosion txawm nyob rau hauv qhov hnyav sab nraum zoov ib puag ncig, thiab cov kev pab cuam lub neej yuav ncav cuag 25 xyoo.
Post lub sij hawm: Aug-25-2022
