Cov khoom siv anticorrosive Lub ntsiab kev ua haujlwm yog los tiv thaiv kev kub ntxhov, ua tiav lub hom phiaj ntawm kev siv lub cuab yeej mus sij hawm ntev. Tab sis vim lawv tus kheej cov ntaub ntawv tsim khoom thiab txoj siv ntawm lub chaw, uas tseem tso cai rau cov cuab yeej corrosion tsis txhob muaj qhov kev pheej hmoo ntawm corrosion, yog li peb yuav tsum to taub qee cov laj thawj rau corrosion corrosion khoom thiaj li to taub zoo tiv thaiv corrosion cov khoom siv los kho tus kab mob corrosion.
Corrosion ntawm cov cuab yeej corrosion, feem ntau, vim yog Electrochemical Device corrosion ntawm hlau. Thiab Electrochemical Device Ntaus ntawm cov kua hluav taws xob yog hu ua Electrochemical Device corrosion. Nyob rau hauv qhov chaw ib puag ncig thiab cov hlau tawg muaj tshwm sim tuaj, feem coob yog Electrochemical Device corrosion. Xws li hlau nplaum, carbon steel, txhua hom tsis muaj hlau tsis muaj hlau, tsis tshua muaj hlau hlau, tooj liab, txhuas, txhuas thiab nws cov thooj nquag siv hauv cov hlau, ntau yam alkali, kua qaub, kua ntsev; cua, av; Cov dej hauv dej, Cov ntxhua hluav taws xob, Hluav taws xob txhuam, hluav taws xob, txhuam kev txhuam, tawg ua kom tawg, thiab lwm qhov chaw ntawm qhov txhooj yog qhov tshwj xeeb ntawm Electrochemical Device corrosion. Cov khoom siv anticorrosive yog rau Electrochemical Device corrosion thiab corrosion.
Vim koj paub cov corrosion ntawm corrosion khoom, ces yuav ua li cas nrog? Cov khoom siv anticorrosion kom tsis txhob txhuam tau? Cov nram qab no txoj kev yuav siv los txo cov ntxhiab tsw:
1, yuav yog cov khoom siv tiv thaiv corrosion, corrosive tshuaj nyob rau hauv ib puag ncig kom tshem lwm yam khoom xyaw cov teeb meem kom tshem, thiaj li tsis tsim cov roj ntsha corrosive. Piv txwv: cov dej tshem tawm - tiv thaiv kom tsis zoo hauv qhov athospheric corrosion, tshem tawm ntawm cov dej oxygen hauv cov dej - kev tiv thaiv ntawm cov dej tsis zoo uas tshwm sim los ntawm cov pa roj carbon.
2, ntxiv cov tshuaj txhuam, ntxiv cov tshuaj txhuam kom tsis txhob txhuam cov khoom siv corrosion los ntawm kev ntxiv txoj kev ua kom tsis txhob muaj kev phom sij los kho tus nqi ph. Nyob rau hauv corrosive ib puag ncig kom ntxiv me me ntawm corrosion inhibitor, thiaj li hais tias hlau nto tsim ib tug yeeb yam tiv thaiv, uas muaj peev xwm significantly txo qhov nqi ntawm corrosion ntawm hlau. Muaj peev xwm tau txais ib cov teeb meem los tiv thaiv corrosion. Xws li hlau tsis muaj hlau, titanium thiab lwm yam hydrochloric acid, sulfuric acid thiab zoo li non-oxidizing acid corrosion kuj tseem txom nyem, koj ntxiv tau oxygen thiab nitric acid thiab lwm cov oxidants tsawg kom txo tau cov corrosion corrosion khoom thiab li on.
Anti-corrosion khoom rau txhua tus txoj hauj lwm kom yooj yim, peb kuj yuav tsum tiv thaiv cov khoom tiv thaiv corrosion tiv thaiv corrosion ntawm Electrochemical ntaus cim corrosion khoom, peb to taub cov lus saum toj no, kuv ntseeg tias lub siab ntawm lub kua. Tsis tas li ntawd, Rui tuaj yeem hais qhia rau koj kom yuav khoom siv los tiv thaiv corrosion, kom zoo rau cov khoom siv zoo, txo qhov kev pheej hmoo ntawm cov cuab yeej corrosion.
Electrochemical Ntaus kev paub txog kev ntsuam xyuas, feem ntau yog siv cov kua nplaum (ion flow) thiab cov teeb meem hluav taws xob hauv hluav taws xob, xws li cov teeb meem yoojyim, feem ntau cov tub ntxhais kawm siv txoj kev rote tseem tuaj yeem tau cov ntsiab lus; tab sis muaj ntau tus tub ntxhais kawm sib xyaw, qhov laj thawj no yog: Tsis muaj kev nkag siab zoo ntawm kev tsim tawm tam sim no.
Peb faib ob lub roj teeb thiab electrolytic cell nyob rau hauv ob seem rau kev ntsuam xyuas
1. Rau cov thawj roj teeb, peb yuav tsum to taub: qhov kev sab nraud sab nraud (piv txwv li, lub xov hlau), kev tsim ntawm qhov tam sim no yog qhov tshwm sim ntawm cov hluav ncaig, lub voj voog sab hauv (ie, electrolyte solution), qhov tsim ntawm qhov tam sim no yog ion khiav.
Nyob hauv Circuit Court External, qhov tam sim no ntws los ntawm cov ncej zoo rau tus ncej tsis zoo. Yog li, qhov kev coj ntawm cov electrons yog los ntawm kev tsis pom zoo rau qhov zoo (vim tias cov electrons raug negatively them, thiab qhov kev taw qhia ntawm qhov tam sim no yog txawv rau qhov tam sim no). Ntawd yog, peb hais tias qhov tsis zoo electrons ntws tawm, Inflow.
Hauv Internal Circuit, qhov tam sim no ntws los ntawm tus ncej tsis zoo rau qhov zoo electrode. Yog li, qhov cation ntws tawm ntawm qhov tsis zoo electrode mus rau qhov zoo electrode (cov ntaub ntawv yog qhov zoo thiab tus nqi tam sim no). Cov pob txha muaj zog los ntawm cov pa electrode rau qhov tsis zoo electrode (qhov anode yog qhov tsis muaj nqi thiab qhov nws tam sim no yog txawv rau qhov tam sim no).
2. Rau ib lub xuab zeb electrolytic, tam sim no ntws los ntawm qhov zoo ntawm lub hwj chim muab rau qhov tsis zoo ntawm lub hwj chim.
Qhov zoo ntawm lub hwjchim ntawm lub hwjchim yog txuas nrog lub anode, qhov tsis zoo ntawm lub hwjchim uas txuas nrog lub cathode, qhov kev taw qhia ntawm qhov tam sim no nyob rau hauv lub xov hlau: ib kawg yog qhov zoo ncej ntawm lub hwj chim rau lub anode thiab lwm qhov kawg: lub cathode ntws mus rau qhov tsis zoo ntawm lub hwj chim khoom. Raws li cov electrons raug cuam tshuam them, lawv khiav hauv cov hlau yog cov lus rov qab xwb: cov electrons ntws los ntawm qhov tsis zoo ntawm lub hwj huam mov mus rau lub cathode thiab los ntawm cov anode mus rau qhov zoo mov.
Nyob rau hauv lub tshuab electrolytic, cov tshuaj kua txiv electrolyte kuj yog ib feem ntawm cov khoom siv sab nraud ntawm lub hwj chim. Cov kev taw qhia tam sim no yog los ntawm cov anode txuas nrog lub ncej ntawm lub hwj huam tuaj rau lub cathode txuas nrog tus ncej tsis zoo ntawm lub hwj chim. Vim li no, qhov khiav ntawm lub cation tseem ntws los ntawm lub anode mus rau cathode, Charge, uas flows nyob rau hauv lub rov qab coj mus rau tam sim no, los ntawm cathode mus rau anode.