Kev ntsuam xyuas acid-base ntawm DINSENcam khwb cia hlau kav(tseem hu ua SML yeeb nkab) feem ntau yog siv los ntsuas nws cov corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv acidic thiab alkaline ib puag ncig. Cov kav dej cam khwb cia hlau yog dav siv hauv cov dej, cov kav dej thiab cov kav dej ua haujlwm vim lawv cov khoom siv zoo heev thiab kev tiv thaiv corrosion. Cov hauv qab no yog cov kauj ruam dav dav thiab kev ceev faj rau kev kuaj cov kua qaub-puag ntawm SML kav:
Lub hom phiaj ntawm qhov kev sim
Ntsuam xyuas qhov kev tiv thaiv corrosion ntawm cov kav hlau kav hauv cov kua qaub thiab alkaline ib puag ncig.
Txiav txim siab nws cov tshuaj stability nyob rau hauv txawv pH tej yam kev mob.
Muab cov ntaub ntawv siv rau kev xaiv cov khoom siv hauv kev siv.
Cov khoom siv sim
Cam khwb cia hlau yeeb nkab qauv (txiav rau hauv qhov loj me).
Cov tshuaj acidic (xws li dilute sulfuric acid, dilute hydrochloric acid, pH tus nqi tuaj yeem hloov kho raws li xav tau).
Alkaline daws (xws li sodium hydroxide tov, pH tus nqi tuaj yeem hloov kho raws li xav tau).
Thawv (acid-resistant iav los yog yas ntim).
Cov cuab yeej ntsuas (pH meter, hluav taws xob sib npaug, vernier caliper, thiab lwm yam).
Cov khoom siv ntsuas qhov ntsuas corrosion (xws li lub qhov cub kom qhuav thiab qhov sib npaug yuav tsum muaj rau txoj kev poob phaus).
Cov khoom siv tiv thaiv ( hnab looj tes, looj tsom iav dub, lub tsho tiv no, thiab lwm yam).
Kev sim cov kauj ruam
Kev npaj ua piv txwv:
Txiav cov qauv SML yeeb nkab thiab xyuas kom meej tias qhov chaw huv si thiab tsis muaj roj.
Ntsuas thiab sau thawj qhov loj thiab qhov hnyav ntawm tus qauv.
Npaj cov tshuaj:
Npaj cov kua qaub thiab alkaline tov ntawm tus nqi pH xav tau.
Siv lub ntsuas pH los ntsuas pH ntawm cov tshuaj.
Kev sim immersion:
Raus cov DINSEN cam khwb cia hlau yeeb nkab qauv hauv cov kua qaub thiab cov alkaline tov.
Xyuas kom meej tias cov qauv no tau muab tso rau hauv lub cev thiab sau lub sijhawm rau kev nkag mus (xws li 24 teev, 7 hnub, 30 hnub, thiab lwm yam).
Kev soj ntsuam thiab sau cia:
Saib xyuas qhov hloov pauv ntawm tus qauv tsis tu ncua (xws li corrosion, discoloration, nag lossis daus, thiab lwm yam).
Sau cov xim hloov ntawm kev daws teeb meem thiab tsim cov nag lossis daus.
Tshem tawm cov qauv:
Tom qab lub sijhawm tau teem tseg, tshem tawm cov qauv thiab yaug nws nrog dej distilled.
Qhuav tus qauv thiab ntsuas nws qhov hnyav thiab qhov hloov pauv loj.
Corrosion rate xam:
Tus nqi corrosion yog xam siv txoj kev poob phaus, thiab cov mis yog:Corrosion tus nqi = thaj tsam × lub sijhawm
Poob poob:
Sib piv cov nqi corrosion hauv acidic thiab alkaline ib puag ncig.
Kev txheeb xyuas qhov tshwm sim:
Txheeb xyuas qhov kev tiv thaiv corrosion ntawm cov kav hlau hlau nyob rau hauv qhov sib txawv pH.
Ntsuam xyuas nws qhov kev siv tau hauv kev siv tswv yim.
Cov kev ceev faj
Kev tiv thaiv kev nyab xeeb:
Cov kua qaub thiab alkali daws yog corrosive, thiab cov neeg sim yuav tsum hnav cov khoom tiv thaiv.
Qhov kev sim yuav tsum tau ua nyob rau hauv ib qho chaw zoo ventilated.
Kev daws concentration:
Xaiv qhov tsim nyog acid thiab alkali concentration raws li qhov tseeb daim ntawv thov scenario.
Qauv ua:
Xyuas kom meej tias tus qauv saum npoo huv si kom tsis txhob muaj impurities cuam tshuam rau qhov kev sim.
Lub sijhawm sim:
Teem lub sij hawm rau immersion tsim nyog raws li lub hom phiaj ntawm kev sim kom tag nrho cov kev ntsuam xyuas corrosion.
Kev sim cov txiaj ntsig thiab kev siv
Yog hais tias cov yeeb nkab hlau yeeb nkab qhia tau hais tias tsis tshua muaj corrosion nyob rau hauv ib puag ncig acid-puag, nws txhais tau hais tias nws muaj corrosion kuj zoo thiab haum rau complex tshuaj ib puag ncig.
Yog hais tias tus nqi corrosion yog siab, ntxiv kev tiv thaiv corrosion (xws li txheej los yog cathodic tiv thaiv) yuav tsum tau.
Los ntawm kev sim acid-puag, cov tshuaj ruaj khov ntawm cov kav hlau hlau tuaj yeem nkag siab tag nrho, muab lub hauv paus kev tshawb fawb rau lawv daim ntawv thov hauv ib puag ncig tshwj xeeb.
Post lub sij hawm: Feb-28-2025
