Kev ua haujlwm hlau yog daim teb ntxim nyiam uas encompasses tsim qauv, chaw tsim khoom, thiab kev siv cov khoom siv ntawm cov khoom siv hlau. Los ntawm cov duab puab intricate kom ruaj khov rau cov tshuab, cov hlau ua lub luag haujlwm tseem ceeb hauv ntau yam kev lag luam. Txawm li cas los xij, ib qho kev nyuaj siab tseem ceeb ntsib kev ua haujlwm hlau yog corrosworking yog corrosworking yog corrosworking yog corrosion, tshwj xeeb yog corrosion los ntawm oxidation khoom. Cov ntawv no tshawb txog kev sib txheeb ntawm oxidants thiab cov hlau thiab cov lus teb cov lus nug hauv qab no: Ua cov khoom siv oxidation corode?
Nkag siab oxidation thiab corrosion
Oxidation yog tshuaj lom neeg cov tshuaj tiv thaiv uas tshwm sim thaum ib yam khoom siv nrog oxygen. Nyob rau hauv cov ntaub ntawv ntawm cov hlau, cov txheej txheem no ua rau muaj kev xeb, uas yog qhov qeeb me ntsis tawg ntawm cov hlau vim tias cov tshuaj tiv thaiv nws ib puag ncig. Cov hlau oxidize thaum lawv raug cov dej noo, huab cua lossis qee yam tshuaj lom neeg, ua cov oxides. Piv txwv li, hlau oxidizes los ua cov xeb (hlau oxide), uas tuaj yeem ua rau cov hlau ua kom tsis muaj zog.
Corrosion yog ntau tshaj li qhov teeb meem kom hniav zoo nkauj; Nws kuj tseem tuaj yeem hais daws cov qauv kev ncaj ncees ntawm cov hlau seem. Hauv kev ua haujlwm hlau, nkag siab txog qhov uas ua rau muaj kev xeb yog qhov tseem ceeb los ua kom muaj kev ua kom ntev thiab ruaj khov ntawm koj cov khoom lag luam hlau.
Qhov cuam tshuam ntawm cov khoom lag luam oxidation ntawm cov hlau
Cov khoom lag luam oxidation, xws li cov kua qaub, ntsev, thiab cov roj av, ua kom nrawm rau cov txheej txheem xeb. Thaum cov tshuaj no tuaj rau hauv kev sib cuag nrog cov hlau sib tsoo, lawv pib lossis txhim kho oxidation kev tawm tsam. Piv txwv li, hydrochloric acid yog ib tug muaj zog oxidant uas muaj peev xwm sai npaum corals xws li steel thiab txhuas. Ib yam li ntawd, sodium chloride (cov ntsev ntau) tuaj yeem tsim kom muaj kev thaj chaw muaj kev tiv thaiv corrosive, tshwj xeeb tshaj yog tias nws yog noo, ua rau pitting thiab xeb.
Tus nqi ntawm cov khoom siv oxidation corrode ntawm ntau yam, suav nrog hom hlau, muaj xws li cov oxidant, ntsuas kub thiab muaj cov txheej txheem tiv thaiv. Qee cov hlau, xws li stainless hlau, yog cov tiv taus corrosion vim yog tsim ntawm ib txheej oxide uas tiv thaiv cov khoom hauv qab. Txawm li cas los xij, txawm tias stainless hlau tuaj yeem corrode nyob rau hauv huab cua sov lossis nrog ntev raug rau corrosive oxidants.
Tiv thaiv cov khoom lag luam hlau los ntawm kev ua xeb
Txhawm rau txo cov txiaj ntsig ntawm cov khoom lag luam oxidation ntawm cov hlau, ntau cov tswv yim tuaj yeem ua haujlwm hauv cov khoom hlau. Ib qho ntawm cov hau kev zoo tshaj plaws yog txhawm rau siv cov txheej tiv thaiv kev tiv thaiv xws li pleev xim, galvanizing, lossis hmoov txheej. Cov txheej txheej no tsim cov thaiv ntawm cov hlau thiab ib puag ncig, txo qhov ntxim nyiam ntawm oxidation.
Tsis tas li ntawd, kev saib xyuas thiab kev tshuaj xyuas ib txwm tuaj yeem pab txheeb xyuas cov cim thaum ntxov ntawm kev xeb yog li ntawd kev cuam tshuam raws sijhawm yog tias muaj kev cuam tshuam kom raws sijhawm yog li ntawd. Nyob rau hauv ib cheeb tsam uas muaj cov hlau muaj cov tshuaj muaj kuab lom lossis noo noo, siv cov tshuaj tiv thaiv corrosion, siv cov tshuaj tiv thaiv corrosion lossis siv cov tshuaj haloyscic tuaj yeem txhim kho durability.
Hauv cov ntsiab lus, cov khoom lag luam oxidation tuaj yeem noj kom deb ntawm cov hlau, ua rau kev mob hnyav thiab kev ua kom muaj kev puas tsuaj. Nkag siab cov qauv ntawm oxidation thiab corrosion yog qhov tseem ceeb heev rau txhua tus neeg ua haujlwm nrog hlau. Los ntawm kev tiv thaiv kev tiv thaiv thiab xaiv cov ntaub ntawv raug cai, cov neeg ua haujlwm hlau tuaj yeem txo cov teebmeem ntawm oxidants thiab xyuas kom meej ntawm lawv txoj haujlwm. Raws li thev naus laus zis kev nce qib, txuas ntxiv cov ntaub ntawv-resistant cov ntaub ntawv thiab txheej txheem tseem ceeb yuav txuas ntxiv mus ua lub luag haujlwm ntawm cov qauv hlau rau ntau xyoo tom ntej.
Lub Sijhawm Post: Dec-07-2024
