Lub hauv paus rau phau ntawv
Xuas yog qhov teeb meem muaj xeb uas cuam tshuam cov hlau nyom, ua rau muaj kev txhawj xeeb txog kev nyab xeeb thiab kev nyab xeeb kev nyab xeeb. Cov txheej txheem ntawm kev xeb, lossis xeb, tsis zoo rau cov qauv kev ncaj ncees ntawm cov khoom siv hlau, ua rau lawv tsis muaj zog thiab nquag ua tiav. Kev lag luam xws li kev tsim kho, tsheb, thiab cov tubrog nkoj muaj ntau yam uas muaj xeb, ua rau nrhiav kev tsis sib xws zoo tshaj plaws. Nkag siab txog kev tiv thaiv xeb feem ntau yog qhov tseem ceeb rau kev ncua lub neej ntawm cov khoom lag luam ntawm cov khoom lag luam thiab cov txhab.
Ib qho ntawm cov kev daws teeb meem hauv kev sib txuas xeb yog kev siv Anti-xeb txheej txheem ntawm steel. Cov txheej txheej no muab cov txheej tiv thaiv uas tiv thaiv cov ntsiab lus corrosive los ntawm kev ncav cuag cov hlau nto. Tsab ntawv no rho tawm cov kev xaiv xeb ntau yam, muab piv rau lawv cov txiaj ntsig, cov hau kev, thiab haum rau cov chaw sib txawv.
Nkag siab xeb thiab corrosion
Rust, kev paub txog hlau oxide, cov ntaub ntawv thaum hlau reacts nrog oxygen thiab noo noo. Qhov txheej txheem hauv tshuab hluav taws xob no ua rau muaj kev cuam tshuam ntawm cov hlau. Corrosion tsis tsuas yog cuam tshuam cov hlau tab sis kuj lwm cov hlau, txhua tus reacting sib txawv raws li ib puag ncig. Raws li lub koom haum hauv ntiaj teb, lub ntiaj teb tus nqi ntawm kev txhim kho hauv ntiaj teb yog kwv yees $ 2.5 trillion txhua xyoo, sib npaug rau 3.4% ntawm lub ntiaj teb GDP. Qhov no nkag siab qhov tseem ceeb ntawm kev ua haujlwm tiv thaiv xeb zoo.
Yam khoom xws li cov av noo, ntsuas kub, raug rau ntsev, thiab kev siv cov qias tuaj ua kom nrawm nrawm nrawm nrawm txheej txheem xeb. Cov hlau siv hauv cov ntug hiav txwv lossis cov chaw muaj kev muaj zog yog qhov tshwj xeeb. Yog li ntawd, xaiv ib txoj kev tiv thaiv xeb yog nyob ntawm cov xwm txheej uas hlau yuav ntsib.
Cov Txheej Txheem Tawm Tsam Los Tiv Thaiv
Galvanization
Galvanization cuam tshuam nrog cov txheej hlau lossis hlau nrog ib txheej ntawm zinc. Cov Zinc ua raws li kev ua kom muaj kev ua txhaum cai, corroding hloov chaw ntawm cov hlau hauv qab. Kub-DIP galvanizing yog ib txoj kev uas cov hlau yog submerged nyob rau hauv Molten Zinc, kom ua tiav cov kev pab them tag nrho. Galvanized steel yog dav siv vim nws lub durability thiab nqi-ua hauj lwm zoo.
Kev tshawb fawb qhia tau tias cov txheej txheem pleev xim galvanized tuaj yeem pab tau kev tiv thaiv li 50 xyoo hauv ib puag ncig. Qhov ua tau zoo nyob ntawm qhov tuab ntawm zinc txheej thiab qhov hnyav ntawm cov kev mob.
GalvalUM Txheej
Galvalume yog ib qho txheej txheem ntawm zinc, txhuas, thiab silicon. Qhov kev sib xyaw no muab cov tshuaj tiv thaiv corrosion tsis kam piv rau cov malvanization tsoos. Cov txhuas nyob rau hauv lub txheej muaj kev tiv thaiv barrier, thaum zinc muab kev tiv thaiv galvanic. Galvalume-coated steel yog qhov tseem ceeb tshaj plaws hauv cov tub rog thiab chaw muaj kev lag luam uas cov nqi corrosion yog siab.
Kev tshawb fawb pom tias Galvalume tau kav ntev txog cuaj npaug ntev dua galvanized txheej ntawm qee yam xwm txheej. Nws cov kev ua tau zoo tshaj plaws ua rau nws xaiv qhov kev xaiv ua kom zoo rau cov vov tsev, tog, thiab lwm yam kev siv rau qhov twg thiav nyob ntev.
Stainless hlau
Stainless hlau muaj chromium, uas ua rau ib txheej oxide passive uas txwv tsis pub corrosion ntxiv. Txoj kev kho tus kheej ntawm cov txheej no thaum khawb ua rau cov hlau stainless rog heev tiv taus. Ntau qib ntawm stainless hlau muaj cov corrosion sib txawv, nrog cov ntsiab lus chromium ntau dua thiab Molybdenum cov ntsiab lus muab kev tiv thaiv zoo.
Thaum stainless hlau yog ib qho kev tiv thaiv cov xeb zoo nkauj, nws tus nqi yog qhov siab dua li lwm txoj kev xaiv. Yog li ntawd, feem ntau nws tshwj tseg rau kev siv ob lub zog thiab siab corrosion tsis kam, xws li hauv cov cuab yeej kho mob, cov cuab yeej siv high-ill).
Cov xim tiv thaiv thiab txheej txheej
Ua ntawv thov cov xim tiv thaiv thiab cov txheej txheem yog cov qauv ntau ntau yam kom tiv thaiv xeb. Cov txheej txheej no ua raws li txoj kev thaiv, tiv thaiv ya raws thiab oxygen los ntawm mus txog rau saum npoo hlau. Epoxy Txheej ci, penurethane pleev xim, thiab hmoov txheej txheej yog cov nquag siv hauv kev lag luam ntau yam.
Kev nce qib hauv txheej teating thev naus laus zis tau coj mus rau kev txhim kho cov xim tiv thaiv corrosive tshwj xeeb uas muaj xeb inibitors. Ib qho ntxiv, cov txheej txheem tuaj yeem raug txiav kom muab cov tshuaj pleev ib ce muaj kev tiv thaiv, ua rau lawv haum rau cov neeg siv khoom thiab cov ntawv thov ua vajtsev.
Lub tswv yim tsim hluav taws xob thev naus laus zis
Cathodic Kev Tiv Thaiv
Cathodic tiv thaiv yog cov qauv electroficical siv los tswj lub corrosion ntawm lub hlau saum npoo hlau los ntawm kev ua nws cathode ntawm ib qho hluav taws xob hauv tshuab hluav taws xob. Qhov no yog tiav los ntawm txuas ntxiv yooj yim corroded 'kev txi hlau ' los ua lub anode. Feem ntau siv hauv Pipelines, nkoj Hulls, thiab Offshore cov qauv, cov txheej txheem ntawm cov xeb no tiv thaiv cov ntawv thov tseem ceeb.
Kev tiv thaiv tam sim no tam sim no (ICCP) yog ntau nrawm dua, siv hluav taws xob hluav taws xob los muab cov khoom tsim nyog tam sim no. Cov kab ke no muaj kev tswj hwm zoo dua thiab tsim nyog rau cov qauv loj uas muaj kev tiv thaiv tsis zoo.
Vapor corrosion inhibitors (VCIS)
VCIS yog cov tshuaj uas tsis txaus ntseeg thiab tsim cov txheej tiv thaiv ntawm cov hlau sib nraus. Lawv feem ntau siv rau hauv kev tiv thaiv cov khoom hlau thaum lub sijhawm ntim khoom thiab kev thauj mus los. VCIS muaj txiaj ntsig zoo vim tias lawv tuaj yeem tiv thaiv thaj chaw tsis tau thiab tsis tas yuav tsum tau thov ncaj qha rau cov hlau nto.
Qhov ua tau zoo ntawm VCIS tau pom nyob hauv ntau txoj kev tshawb fawb, qhia kev txo qis hauv cov neeg corrosion. Lawv yog cov txiaj ntsig tshwj xeeb rau kev tiv thaiv cov khoom seem, cov khoom siv tub rog, thiab hauv kev lag luam automotive.
Nanotechnology txheej
Nanotechnology tau qhib txoj hauv kev tshiab hauv kev tiv thaiv corrosion. Nano-txheej txheej tsim cov txheej txheem ultra uas muab kev tiv thaiv zoo dua yam tsis muaj kev cuam tshuam rau qhov hnyav lossis cov hlau. Cov txheej txheej no tuaj yeem yog hydrophobic, tiv thaiv cov dej noo los ntawm kev ua yeeb yam rau saum npoo av, yog li txo qhov kev pheej hmoo ntawm xeb.
Kev tshawb fawb hauv daim teb no yog txuas ntxiv, nrog cov txiaj ntsig kev ua tau zoo uas qhia txog kev ua haujlwm ruaj khov thiab ua haujlwm. Kev lag luam xws li Aerospace thiab hluav taws xob yog tshawb nrhiav cov txheej txheej no rau cov khoom sib xyaw uas yuav tsum muaj qhov ntsuas siab thiab kev tiv thaiv siab.
Piv piv kev tsom xam ntawm cov tshuaj tiv thaiv xeb
Thaum xaiv qhov zoo tshaj plaws tiv thaiv xeb, yam xws li ib puag ncig, tus nqi, cov txheej txheem thov, thiab thoj yuav tsum tau txiav txim siab. Galvanization thiab Galvalume txheej muaj kev pheej yig thiab kev tiv thaiv zoo rau cov qauv hlau. Stainless hlau muab kev ua kom muaj corrosion zoo heev tab sis ntawm tus nqi siab dua.
Cov xim tiv thaiv thiab cov pleev xim muab cov versatility thiab kev xaiv tshuaj pleev ib ce, haum rau cov khoom uas pom yog qhov tseem ceeb. Cov thev naus laus zis zoo li Nanotechnology txheej thiab Cathodic kev tiv thaiv yog qhov zoo rau cov ntawv thov tshwj xeeb.
Kev sab laj nrog cov tuam ntxhab thiab cov kws tshaj lij tuaj yeem pab rau kev xaiv cov kev daws teeb meem uas tsim nyog tshaj plaws. Cov tuam txhab tshwj xeeb hauv Cov tshuaj tiv thaiv kev xeb muab cov kev pom zoo rau hauv kev nce qib tshiab kawg thiab cov khoom lag luam.
Kawm Txog Cov Ntaub Ntawv
Cov phiaj xwm kev ua haujlwm
Golden Gard Choj underwent ib tug tseem ceeb los tiv thaiv corrosion overhaul siv zinc-folled txheej. Txoj haujlwm no qhia qhov ua tau zoo ntawm kev tiv thaiv xeb tam sim no hauv kev ncua sijhawm ntawm lub neej ntawm iconic qauv qauv. Kev siv cov txheej txheem ua tau zoo txo tus nqi kho thiab txhim kho kev nyab xeeb.
Ib yam li ntawd, xa xov hauv cov roj thiab roj kev lag luam yuav tau txais kev tiv thaiv Cathohodic los tiv thaiv kom tsis txhob muaj kev phom sij. Cov kab ke no tseem ceeb hauv kev saib xyuas kev ncaj ncees ntawm cov pipeline network ntau.
Kev Lag Luam Automotive
Automvakers siv galvanized thiab golvalume steel sib txawv ntau hauv tsheb lub cev kom tiv thaiv xeb. Qhov kev txhim kho corrosion tsis tau coj mus rau lub tsheb ntev lifespans thiab zoo dua resale qhov tseem ceeb. Kev nrhav kev tsim kho hauv kev ua haujlwm tau tso cai rau cov khoom sib zog yog tsis muaj kev tiv thaiv.
Cov hluav taws xob tsheb hluav taws xob, uas feem ntau muaj cov khoom siv hluav taws xob tshwj xeeb, tau txais txiaj ntsig los ntawm kev tiv thaiv cov xeb uas muaj kev tiv thaiv thiab muaj kev nyab xeeb.
Kev coj ua zoo tshaj plaws rau kev tiv thaiv xeb
Txhawm rau ua kom zoo tshaj plaws ntawm kev tawm tsam kev tiv thaiv xeb, daim ntawv thov kom tsim nyog thiab txij nkawm yog qhov tseem ceeb. Kev npaj saum npoo, suav nrog kev tu thiab tshem cov xeb uas twb muaj lawm, ua kom pom tseeb tias ua tiav kom raug. Kev tshawb xyuas ib txwm thiab kev pab kho kom zoo nkauj hauv kev kuaj xyuas thiab daws kev txhim kho corrosion thaum ntxov.
Kev txiav txim siab ib puag ncig yuav tsum tseem coj cov kev xaiv ntawm kev tiv thaiv xeb. Piv txwv li, hauv ib puag ncig marine, cov tsho tiv no yuav tsum tiv thaiv kom muaj kev zom zaub. Hauv cov chaw muaj kev nyab xeeb, tiv taus rau cov tshuaj lom neeg thiab cov pa ua paug.
Tag
Kev txiav txim siab qhov zoo tshaj plaws tiv thaiv xeb yuav tsum muaj ntau txoj kev sib xyaw ua ke, txiav txim siab cov khoom siv, kev raug mob ib puag ncig, thiab cov txheej txheem kev thov. Thaum Galvanization thiab Galvalume txheej muaj kev tiv thaiv txhim khu kev qha thiab kev lag luam zoo li Nanotechnology txheej rau kev xav tau zoo tshaj plaws.
Nkag siab txog cov kev xav tau ntawm txhua daim ntawv thov yog tus yuam sij rau xaiv cov qauv xeb feem ntau. Kev sib koom tes nrog cov kws tshawb fawb thiab kev tshawb fawb txuas ntxiv mus rau cov thev naus laus zis tshiab yuav txuas ntxiv txhim kho Corrosion cov tswv yim. Thaum kawg, lub hom phiaj yog kom ncua lub neej ntawm cov khoom hlau thiab cov qauv siv, kom muaj kev nyab xeeb, kev cia siab, thiab cov nqi txuag tau.
Yog xav paub ntxiv txog cov kev tshiab Cov tub ceev xwm tiv thaiv xeb , cov kws tshaj lij kev lag luam tuaj yeem muab cov kev taw qhia ua rau cov kev xav tau.
