Cov txheej txheem anodizing ntawm aluminium thiab aluminium alloys yog dav siv hauv kev lag luam. Nws tuaj yeem siv los tiv thaiv corrosion ntawm cov khoom lossis ua tiav ob lub hom phiaj ntawm kev tiv thaiv thiab kho kom zoo nkauj, xws li tshuaj tsuag pleev xim thiab electroplating.
1. Tiv thaiv corrosion ntawm aluminium khoom
Txij li cov zaj duab xis txheej tau los ntawm anodization nws tus kheej muaj kev ruaj ntseg txaus nyob rau hauv cov huab cua, oxide zaj duab xis ntawm aluminium nto tuaj yeem siv los ua cov txheej txheem tiv thaiv. Cov oxide zaj duab xis tau los ntawm anodizing aluminium nyob rau hauv cov tshuaj chromic acid yog ntom thiab muaj corrosion kuj zoo; oxide zaj duab xis tau los ntawm cov tshuaj sulfuric acid muaj qhov pores loj dua li qub, tab sis nws cov zaj duab xis txheej yog thicker thiab muaj zog adsorption muaj peev xwm. Yog tias nws yog Nrog kev kho kom zoo thiab sealing, nws cov kev tiv thaiv corrosion kuj zoo heev.
2. Cov khoom siv kho kom zoo nkauj tiv thaiv
Rau feem ntau cov txhuas thiab nws cov khoom siv hlau uas yuav tsum tau ua kom tiav, tom qab tshuaj lom neeg lossis electrochemical polishing thiab tom qab ntawd anodizing nrog sulfuric acid tov, oxide zaj duab xis nrog ntau dua pob tshab tuaj yeem tau txais. Cov oxide zaj duab xis no tuaj yeem nqus tau ntau yam organic dyes thiab inorganic dyes, ua rau muaj ntau yam xim ci. Cov yeeb yaj kiab uas muaj xim no yog ob qho tib si los tiv thaiv corrosion txheej thiab txheej zoo nkauj. Nyob rau hauv qee qhov txheej txheem tshwj xeeb, kev tiv thaiv thiab kho kom zoo nkauj oxide zaj duab xis nrog cov tsos zoo li cov plooj (porcelain) kuj tuaj yeem tau txais.
3.Ua ib txheej txheej rau cov xim pleev xim
Vim lub porosity thiab zoo adsorption muaj peev xwm ntawm cov yeeb yaj kiab anodized, nws tuaj yeem siv los ua cov txheej hauv qab ntawm cov xim pleev xim thiab lwm cov yeeb yaj kiab organic kom khov kho cov xim zaj duab xis thiab cov yeeb yaj kiab organic nrog cov khoom, yog li ua rau nws cov corrosion kuj.
4. Raws li txheej hauv qab ntawm electroplating
Ua ntej electroplating, aluminium thiab aluminium alloy cov khoom yuav tsum tau coated nrog lub hauv paus txheej ua ntej electroplating. Muaj ntau txoj hauv kev los thov ib txheej hauv qab ntawm qhov chaw ntawm lub substrate. Ntxiv rau electro-galvanizing, immersion zinc, thiab electroless npib tsib xee plating, anodizing kuj yog ib txoj hauv kev tseem ceeb.
