Los ntawm qhov pom ntawm microscopic, muaj ntau lub pinholes nyob rau hauv txheej, thiab qhov luaj li cas ntawm cov pinholes yog txaus los tso cai rau sab nraud corrosive media (dej, oxygen, chloride ions, thiab lwm yam) nkag mus rau hauv lub substrate, thiab nyob rau hauv ib tug tej yam. txheeb ze humidity, filamentous corrosion tshwm sim.Lub thicker lub txheej, tsawg pinholes, thiab qhov zoo dua corrosion kuj ntawm substrate.Raws li pom nyob rau hauv daim duab, txawv txheej thicknesses cuam tshuam rau corrosion kuj.Cov txiaj ntsig kev ntsuam xyuas pom tau tias thaum cov txheej tuab yog siab dua 20μm, cov nyhuv corrosion kuj yog qhov ruaj khov.
Txheej tiv thaiv:
Txheej zoo thiab kev ua haujlwm tseem cuam tshuam rau qhov kawg corrosion kuj ntawm cov khoom xim txheej.Yog hais tias lub teeb yog ua los ntawm txias dov puag phaj (tsis suav nrog plating) ncaj qha rau MCL, vim yog cov khoom siv corrosion ntawm hlau xoob yooj yim nqus ntawm noo noo, thiab tsis muaj kev tiv thaiv theem nrab, yog li nws cov corrosion ceev ceev, yog tias cov tuab tuab ntawm galvanized zinc. (aluminium plating zinc / aluminium magnesium) substrate, nws tuaj yeem ua lub luag haujlwm ntawm "firewall", yuav ua kom zoo dua corrosion ntawm cov khoom.
Lub sij hawm xa tuaj: Jun-10-2022