1.Vim li cas ho tsis pom zoo?
Muaj kev pheej hmoo ntawm tshuaj lom neeg corrosion:
Txheej tsis ua hauj lwm: Cov tshuaj khib nyiab feem ntau muaj cov kua qaub (xws li SO₂, HCl, NOx), alkali pos huab (xws li NH₃), organic hnyav vapor (xws li benzene, esters, ketones), thiab lwm yam. Cov tshuaj no yuav nkag mus, o, thiab decompose cov organic txheej txheej ntawm cov xim coated {{1}, board, thiab lwm yam. nws cov nyhuv tiv thaiv.
Kev nrawm nrawm ntawm lub substrate: Thaum cov txheej txheej puas lawm, cov txheej hauv galvanized lossis txhuas txheej yuav raug ncaj qha rau corrosive gases lossis condensate. Nyob rau hauv ib puag ncig tshuaj, corrosion kuj ntawm galvanized txheej yog deb ntawm txaus, uas yuav ua rau lub substrate sai xeb thiab perforate, ua rau cov khoom to.
Kub thiab condensate teeb meem:
Qhov kub thiab txias tuaj yeem hloov pauv thaum cov txheej txheem kev kho cov pa khib nyiab, thiab cov condensation tuaj yeem tshwm sim tau yooj yim. Condensate yog ib tug concentrated kua ntawm corrosive tshuaj. Nws yog corrosive heev thiab yuav tsub zuj zuj nyob rau hauv qab los yog phab ntsa ntawm cov khoom, ua rau ntev - lub sij hawm thiab tuag immersion corrosion ntawm cov ntaub ntawv. Xim- cov boards coated yog unbearable kiag li.
Tsis zoo mechanical thiab hnav tsis kam:
Cov khoom siv yuav raug tsoo thaum lub sijhawm teeb tsa, ua haujlwm, thiab tu. Thaum cov xim txheej yog khawb, corrosion yuav kis tau los ntawm kos.
2.Dab tsi yog qhov ua tau, txwv tsis pub siv cov xwm txheej?
High- xim zoo-coated yob (xws li cov txheej tuab, PVDF topcoats) tsuas yog txiav txim siab yog tias tag nrho cov xwm txheej hauv qab no tau ua tiav:
Cov pa roj uas kho tau yog huv si kiag li: tsuas yog qhov kub thiab txias, tsis yog - corrosive, thiab tshuaj lom neeg - cov khoom tsis huv raug tshem tawm (xws li cov ntoo yooj yim ua hmoov av, hmoov nplej hmoov nplej), thiab xyuas kom meej tias cov pa roj tsis muaj cov kua qaub, cov kuab tshuaj organic, thiab lwm yam.
Qhuav kiag li: Tsis muaj qhov ua tau ntawm condensation nyob rau hauv cov txheej txheem, thiab cov av noo ntawm cov pa tawm yog tsawg.
Cov cuab yeej nyob hauv tsev lossis hauv qhov dej -ib puag ncig tiv thaiv thiab tsis cuam tshuam los ntawm cov nag lossis ultraviolet rays.
Siv los ua vaj huam sib luag tiv thaiv sab nraud rau cov khoom siv: tsuas yog tsis yog - thauj khoom- cov kabmob, tsis yog- kaw kev kho kom zoo nkauj sab nraud lossis tiv thaiv npog, tsis tiv nrog cov pa roj. Tab sis txawm li ntawd los, kev saib xyuas yuav tsum tau them rau cov roj corrosive uas tuaj yeem tawg mus rau hauv lub rooj cob qhia thiab corrode nws sab nrauv.
3.Dab tsi yog cov ntaub ntawv pom zoo rau cov khoom siv tshuaj khib nyiab kho?
Fiberglass Reinforced Plastic (FRP): Ib qho yooj yim heev thiab raug nqi -kev xaiv zoo. Zoo heev acid thiab alkali corrosion kuj, lub teeb yuag, yooj yim rau txheej txheem thiab zoo li. Muaj feem xyuam rau feem ntau cov kua qaub thiab alkaline pov tseg roj ntub cov cuab yeej kho mob.
Stainless hlau:
304 stainless hlau: haum rau qhov chaw tsis muaj zog corrosion.
316L stainless hlau: Molybdenum keeb txhim khu kev tiv thaiv corrosion ntawm chloride ions thiab tsim nyog rau cov pa pa uas muaj chloride ions (xws li HCl).
Duplex Stainless Steel: Ntau dua corrosion resistant thiab muaj zog, siv nyob rau hauv ntau qhov chaw hnyav.
Carbon steel lined nrog tiv thaiv -corrosion txheej:
Rubber hauv ob sab phlu, yas hauv ob sab phlu (PP / PE / PO): Muab cov tshuaj tiv thaiv corrosion zoo heev.
Txheej nrog hnyav los tiv thaiv- coatings coatings: xws li epoxy resin, iav flake txheej, thiab lwm yam, yuav tsum tau nruj kev kho deg thiab kev tsim kho.
Yas (PP / PVC / FRPP): Cov yas xws li polypropylene muaj cov kua qaub zoo thiab alkali tsis kam thiab feem ntau siv rau hauv cov khoom me me los yog hauv ob sab phlu.
Tshwj xeeb alloys: siv nyob rau hauv huab cua ua hauj lwm tej yam kev mob xws li kub thiab siab corrosion, tab sis tus nqi yog heev siab.
4.Cov ntsiab cai tseem ceeb yog dab tsi?
"Chemical anti-corrosion, kev nyab xeeb ua ntej." Kev xaiv cov khoom siv yuav tsum yog raws li cov lus qhia ntxaws txog cov pa roj carbon monoxide thiab cov kev ua haujlwm.
5.Txhua yam lus qhia?
Rau cov qauv tseem ceeb ntawm cov cuab yeej siv tshuaj khib nyiab kho (ib feem ntawm kev sib cuag ncaj qha nrog cov pa khib nyiab), kev siv cov xim -coated yob yuav tsum zam. Nws thawj zaug kev txuag nqi yog nyob deb ntawm kev tsim kho, kev tsim khoom kaw thiab kev nyab xeeb txaus ntshai los ntawm nws qhov tsis ua tiav ntxov.
Qhov tsim nyog yuav tsum tau ua: Tham nrog ib tus kws tshaj lij ib puag ncig cov cuab yeej siv tshuab lossis cov khoom siv ua haujlwm los ua cov ncauj lus kom ntxaws corrosion thiab xaiv cov ntaub ntawv pov thawj xws li FRP, stainless hlau, yas-lined carbon steel, thiab lwm yam.