Covxim hlau phajnyob rau hauv atmospheric ib puag ncig raug tshav ntuj, cua, xuab zeb, nag, daus, Frost thiab dew, nrog rau cov kev hloov nyob rau hauv kub thiab av noo nyob rau hauv lub xyoo.Cov no yog txhua yam uas ua rau cov xim hlau vuas corrode.Yog li yuav tiv thaiv lawv li cas?
1. Thermal spray aluminium composite txheej
Qhov no yog ib txoj kev ntev-ntev los tiv thaiv corrosion uas zoo li kub-dip galvanizing.Txoj kev tshwj xeeb yog ua ntej sandblast thiab tshem tawm xeb ntawm qhov chaw ntawm cov khoom siv hlau kom nthuav tawm cov xim hlau nplaum thiab ua kom tawv nqaij.Tom qab ntawd siv cov nplaim hluav taws xob acetylene-oxygen kom yaj cov hlau tsis tu ncua, thiab siv cov cua compressed los tshuab rau saum npoo ntawm cov hlau tivthaiv los tsim cov honeycomb-zoo li aluminium spray txheej.Thaum kawg, capillary pores tau ntim nrog cov xim xws li epoxy resin lossis neoprene xim los tsim cov txheej txheem sib xyaw.Txoj kev no tsis tuaj yeem siv rau ntawm phab ntsa sab hauv ntawm tubular Cheebtsam, yog li ob qhov kawg ntawm cov tubular Cheebtsam yuav tsum tau airtightly kaw kom lub puab phab ntsa yuav tsis corrode.
2. Txheej txheej
Cov khoom tiv thaiv corrosion ntawm txheej txheej feem ntau tsis zoo li txoj kev tiv thaiv corrosion mus ntev.Yog li ntawd, muaj ntau cov qauv hlau sab hauv tsev lossis sab nraum zoov steel qauv uas yooj yim los tiv thaiv.Thawj kauj ruam hauv kev tsim cov txheej txheem txheej yog xeb tshem tawm.Cov txheej txheem zoo nyob ntawm kev tshem tawm xeb.Yog li ntawd, coatings nrog siab thov feem ntau siv sandblasting thiab tua blasting kom tshem tawm xeb, nthuav tawm cov luster ntawm cov hlau, thiab tshem tawm tag nrho cov xeb thiab roj stains.Cov txheej uas siv rau ntawm qhov chaw tuaj yeem raug tshem tawm ntawm tes.Qhov kev xaiv ntawm txheej yuav tsum coj mus rau hauv tus account ib puag ncig ib puag ncig.Cov txheej txheej sib txawv muaj qhov sib txawv rau qhov sib txawv corrosion.Coatings feem ntau muaj xws li primer thiab topcoat.Cov primer muaj cov hmoov ntau dua thiab cov khoom siv qis dua.Zaj duab xis yog ntxhib, muaj zog adhesion rau hlau, thiab muaj zoo adhesion rau topcoat.Lub topcoat muaj ntau cov ntaub ntawv hauv paus thiab zaj duab xis yog ci, uas tuaj yeem tiv thaiv cov primer los ntawm atmospheric corrosion thiab tiv taus huab cua.
Muaj lus nug txog kev sib raug zoo ntawm cov txheej txheem sib txawv.Thaum xaiv cov coatings sib txawv ua ntej thiab tom qab, koj yuav tsum tau them sai sai rau lawv cov compatibility.Cov txheej yuav tsum tau siv nrog qhov tsim nyog kub thiab av noo.Cov txheej txheej tsim ib puag ncig yuav tsum tsis tshua muaj plua plav thiab yuav tsum tsis muaj condensation ntawm qhov chaw ntawm cov khoom.Tsis txhob cuam tshuam los nag hauv 4 teev tom qab pleev xim.Cov txheej txheem feem ntau ua 4 mus rau 5 zaug.Tag nrho cov tuab ntawm cov xim pleev xim qhuav yog 150μm rau cov haujlwm sab nraum zoov thiab 125μm rau cov haujlwm sab hauv tsev, nrog kev tso cai yuam kev ntawm 25μm.Nyob rau ntawm ntug dej hiav txwv los yog hauv hiav txwv los yog nyob rau hauv ib qho chaw corrosive heev, tag nrho cov tuab ntawm cov xim qhuav tuaj yeem nce mus rau 200 ~ 220μm.
3. Cathodic tiv thaiv txoj kev
Txuas ntxiv vivid hlau rau saum npoo ntawm cov qauv steel hloov qhov corrosion ntawm cov hlau.Feem ntau siv nyob rau hauv underwater los yog underground lug.Cov xim hlau vuas yog cov khoom siv tau zoo heev.Txawm hais tias thawj lub peev peev yuav zoo li me ntsis ntau, hais txog cov nqi siv mus sij hawm ntev, nws yog tus nqi-txuag vim tias cov khoom muaj lub neej ua haujlwm ntev thiab tsis muaj chaw.Muaj qhov xwm txheej hloov.Rau peb, nws txuag kev ua haujlwm, kev siv zog thiab nyiaj txiag.
Kuv vam tias tsab xov xwm no yuav pab tau koj.Thov kaw lub vev xaib no kom tau txais xov xwm tshiab.
Post lub sij hawm: Dec-08-2023