Puas yog cov khoom xaiv ntawm cov hlau uas tsim nyog rau kev xeb ib puag ncig?
Apr 25, 2025
Tso lus
Kev xaiv ntawm cov khoom siv hlau yog qhov tseem ceeb hauv cov chaw muaj teeb meem. Txhawm rau kom ntseeg tau tias kev ua haujlwm ntev ruaj khov ntawm cov cuab yeej siv thiab tsis ua tiav vim yog corrosion, nws yog qhov tsim nyog los kho cov khoom tsim nyog. Nyob rau hauv ib puag ncig corrosive, lub tsev hlau yuav tsum tsis tsuas yog muaj cov tshuab hluav taws xob muaj zog, tab sis kuj tseem muaj cov tshuaj lom neeg los ntawm tshuaj lom neeg, noo noo thiab lwm yam. Kab lus no yuav tshawb txog yuav ua li cas xaiv cov khoom kom haum rau vaj tse raws li cov khoom siv tshwj xeeb kom ntseeg tau tias kev ntseeg tau thiab siv sijhawm ntev ntawm cov khoom siv.
Zoo siab
1. Pib
2. Kev faib tawm thiab cov kev sib tw ntawm cov chaw muaj teeb meem
3. Cov hauv paus ntsiab lus rau xaiv cov ntaub ntawv hlau
4. Anticorrosion thev naus laus zis thiab cov txheej txheem
5. Kev tsom xam thiab cov ntaub ntawv tsis pom tseeb
Corrosion muaj qhov cuam tshuam tseem ceeb ntawm lub neej thiab kev txij nkawm cov nqi ntawm cov cuab yeej siv, tshwj xeeb tshaj yog nyob rau qhov chaw xaiv hlau yog qhov tseem ceeb. Cov tsev yuav tsum tsuas yog muaj cov tshuab hluav taws xob muaj zog, tab sis kuj corrosion tsis kam tiv thaiv yaig los ntawm lwm cov tshuaj lom neeg, tsuag tsuag, thiab noo noo. Corrosion tsis tsuas yog cuam tshuam rau cov khoom siv ntawm cov khoom siv, tab sis kuj tseem tuaj yeem ua rau kev ua tsis zoo, ua tsis tiav, lossis cov khoom siv tsis ua tiav, nce tus nqi kho thiab hloov. Yog li ntawd, xaiv cov khoom siv hlau txoj cai tuaj yeem txuas lub neej ntawm cov cuab yeej, txo qis kev pab kho lub sijhawm ntev ntawm cov khoom siv.
Peb yuav tshawb cov ntsiab lus xaiv, tiv thaiv cov cuab yeej siv, thiab cov tswv yim kev siv ntawm cov ntaub ntawv hlau vaj hauv cov khoom muaj hlau. Los ntawm kev txheeb xyuas qhov yoog raws li cov ntaub ntawv hauv kev kho cov khoom sib txawv xws li txheej txheem sib txawv, thiab anodizing txhawm rau txhim kho cov kev tiv thaiv kev tiv thaiv ntawm lub vaj tse. Kev tsom xam ntawm cov ntaub ntawv thov cov ntaub ntawv yuav pab nkag siab cov khoom siv sib txawv, thiab muab cov kev tiv thaiv txhim khu kev qha ntawm cov khoom siv lag luam.
2. Kev faib tawm thiab cov kev sib tw ntawm cov chaw muaj teeb meem
Hauv cov ntawv thov muaj kev muaj, ib puag ncig muaj xeb uas muaj peev xwm faib ua ntau hom, thiab txhua qhov chaw muaj cov khoom sib txawv ntawm cov ntaub ntawv corrosion thiab qib hlau. Cov xov xwm corrosive feem ntau yuav faib rau hauv kev tshaj tawm tshuaj lom neeg, thiab kuj qhia meej txog kev pabcuam lub neej thiab kev saib xyuas ntawm lub casing.
- Tshuaj Muaj Tshuaj: Tshuaj Corrosion hais txog cov tshuaj tiv thaiv ntawm cov hlau nrog cov tshuaj nyob hauv ib puag ncig ib puag ncig, ua rau muaj kev rhuav tshem cov ntaub ntawv hlau.
- Kev mob lub cev: yam ntxwv zoo li ya raws, kev hloov kom sov, thiab cov tshuaj ntsev kuj tseem tuaj yeem ua rau xeb ntawm cov kab mob hlau.
- Kev ntxhov siab corrosion: kev nyuaj siab corrosion yog hais txog qhov sib xyaw los ntawm kev sib cuam tshuam ntawm cov hlau nrog cov xov xwm kev ntxhov siab sab nraud.
Nyob rau hauv raug thov cov xwm txheej, marine engineering ntsej muag ntsev thiab dej hiav txwv corrosion; Cov kav dej chipelines feem ntau yog cov roj ntsha yog cov kua qaub thiab alkali; Cov chaw nyob hauv av tau cuam tshuam los ntawm kev ya raws thiab cov av, ua rau muaj cov hlau nrawm corrosion.
- Marine Engineering: Hauv qhov chaw marine, lub corrosion chaw ntsib los ntawm cov cuab yeej hlau muaj xws li chloride ions thiab ntsev txau hauv dej hiav txwv. Ntsev txau corrosion yog loj heev rau cov chaw hlau, tshwj xeeb tshaj yog nyob rau hauv cov chaw xws li ntug dej tawm thiab submarine pipelines. Cov ntaub ntawv hlau yuav tsum muaj cov khoom lag luam tsis kam ua kom zoo, thiab cov hlau tsis muaj zog, corrosion-resistant alloys thiab txheej thev naus laus zis feem ntau siv rau kev tiv thaiv.
- Chemelines: cov raj xa dej hauv cov nroj tsuag tshuaj yog feem ntau raug rau cov xov xwm corrosive xws li muaj zog acids, muaj zog alkalis, thiab cov kuab tshuaj. Hlau NYig yog nquag rau tshuaj corrosion, tshwj xeeb tshaj yog rau cov cuab yeej xws li cov kev hloov cua sov thiab cov tshuaj ntsuam. Lub sij hawm ntev sib cuag nrog cov tshuaj xeb yuav ua kom muaj cov hlau corrosion. Nyob rau hauv xws li cov xwm txheej, kev xaiv ntawm cov ntaub ntawv hlau yuav tsum tau them nyiaj tshwj xeeb rau corrosion tsis kam. Cov ntaub ntawv nrog cov kua qaub zoo thiab alkali tsis kam, xws li fluorocarbon txheej lossis titanium alloys, feem ntau raug xaiv.
- Cov chaw nyob hauv av: Cov chaw hauv av xws li cable thiab qhov chaw qhov chaw nquag thiab cov av acidic tau ntev. Cov chaw ib puag ncig no muaj kev cuam tshuam zoo rau kev xeb ntawm cov hlau plhaub. Yam khoom xws li cov roj av noo thiab cov pa roj av tsis txaus ntseeg yuav ua rau lub plhaub hlau maj mam ua rau cov khoom siv noo noo thiab noo noo thiab xeb-resistant lub luag haujlwm. Galvanized steel kav lossis alloys tshwj xeeb feem ntau siv los txuas lub neej pabcuam.
Nyob rau hauv dav dav, sib txawv corrosive ib puag ncig muaj cov kev sib txawv ntawm cov khoom plhaub hlau. Thaum xaiv cov ntaub ntawv pov thawj hlau, nws yog qhov tsim nyog los xaiv cov ntaub ntawv tsim nyog thiab kev tiv thaiv kev ntxhov siab ntev thiab ruaj khov ntawm cov cuab yeej siv nyob hauv ib puag ncig hnyav.
3. Cov hauv paus ntsiab lus rau xaiv cov ntaub ntawv hlau
Efficievies leap precision thiab ruaj khov
Thaum xaiv cov ntaub ntawv hlau, cov ntsiab lus tseem ceeb yog cov khoom lag luam xeb, cov khoom siv tshuab, raug nqi, thiab cov xwm txheej ib puag ncig ib puag ncig ntawm cov ntaub ntawv. Cov ntaub ntawv hlau sib txawv muaj cov yam ntxwv sib txawv ntawm corrosion tsis kam, lub zog, nqi, thiab lwm yam rau cov kev siv corrosive sib txawv thiab kev lag luam. Raws li cov khoom no, tsim cov kev xaiv tsim nyog siv cov hom phiaj tsim nyog yog tus yuam sij los ua haujlwm ntev kev ua haujlwm ntev ntawm cov khoom siv.
- Stainless hlau: Stainless hlau yog dav siv nyob rau hauv cov dej hiav txwv loj xws li dej hiav txwv thiab tshuaj lom vim nws txoj kev txhim kho corrosion zoo thiab muaj zog.
- Aluminium Alloy: Txhuas Alloy muaj cov zoo corrosion tsis kam, lub teeb thiab tus nqi qis.
- Titanium alloy: titanium alloy muaj cov kev ua haujlwm siab heev, tab sis yog kim.
- Cov ntaub ntawv sib xyaw: cov khoom siv sib xyaw feem ntau yog suav nrog cov khoom siv hlau thiab txhawb nqa cov khoom siv, thiab muaj cov yam ntxwv muaj zog thiab cov yam ntxwv me me.
Efficievies leap precision thiab ruaj khov
Thaum xaiv cov ntaub ntawv hlau, cov ntaub ntawv tuaj yeem sib phim raws li qib corrosion ntawm ib puag ncig. Cov qib corrosion feem ntau muab faib ua C1 mus rau C5 raws li ISO 9223 tus qauv. Qhov siab dua qib, corrosive ntau ib puag ncig. Cov tswv yim sib txuam tshwj xeeb yog raws li hauv qab no:
- C1: Siv tau rau txhuas alloy los yog galvanized steel, feem ntau yog siv nyob rau hauv lub tsev ib puag ncig hauv tsev lossis cov chaw tsis raug, tus nqi qis.
- C2: Siv rau cov hlau tsis muaj hlau thiab txhuas alloy, muaj ntau yam nyob rau hauv av noo ib puag ncig, yuav tsum muaj muaj nruab nrab corrosion tsis kam.
- C3: Siv rau cov hlau tsis muaj hlau thiab titanium alloy, haum rau cov tubrog nkoj, tshuaj thiab lwm thaj chaw, cov ntaub ntawv yuav tsum muaj zog corrosion tsis kam.
- C4: Siv tau rau Titanium alloy thiab tshwj xeeb stainless hlau, xav tau cov neeg muaj kev lag luam tsis tshua muaj zog, feem ntau siv hauv kev siv hnyav.
- C5: Siv tau rau cov khoom siv titanium alloy thiab cov khoom siv sib xyaw, haum rau cov platform corrosion xws li cov tshuaj tiv thaiv kab mob caj dab thiab tshuaj lom neeg tso tsheb hlau luam, xav tau super corrosion tsis kam.
Los ntawm kev xaiv cov ntaub ntawv hlau raws li theem sib txawv, kev pabcuam lub neej tuaj yeem raug txo kom zoo, thiab cov haujlwm txij nkawm yuav raug txo kom zoo tuaj yeem ua haujlwm hauv ib puag ncig hnyav tuaj yeem ua kom tiav.
4. Anticorrosion thev naus laus zis thiab cov txheej txheem
Txhawm rau txhim kho cov xeb pheej tiv thaiv ntawm cov xwm txheej hlau, cov thev naus laus zis deg thiab cov qauv tsim kho cov qauv kev tsim kho feem ntau siv. Cov txheej txheem kho cov dej sib xws muaj xws li kev siv hluav taws xob, txau thiab cov tshuaj lom neeg hloov roj. Electroplilating zoo corrosive corrosive thiab nce corosion tsis kam los ntawm txheej txheej txheej tiv thaiv ntawm cov hlau nto. Txau tshuab cov yeeb yaj kiab tiv thaiv los ntawm cov kab mob loj heev los tiv thaiv cov hlau saum npoo av, uas yog ob qho tib si tiv thaiv corrosive thiab zoo nkauj. Kev hloov pauv kev hloov pauv zaj duab xis ua yeeb yaj kiab ua ke ntawm cov hlau sib hloov, xws li cov yeeb yaj kiab txhuas los ntawm cov yeeb yaj kiab txhuas, uas muaj cov khoom siv tshuaj tiv thaiv corrosion thiab antioxidant.
Nyob rau hauv cov nqe lus ntawm qhov tsim nyog tsim qauv, kev tsim hluav taws xob yuav ua rau muaj kev sib txuam ntawm kev corrosion thiab txo cov khoom tshwm sim ntawm kev corrosion, uas yog tsim nyog rau haum rau cov chaw ib puag ncig. Kev txhim kho kev sib khi yuav pab tiv thaiv kev nkag mus ntawm corrosive sab nraud thiab nyob sab hauv cov khoom siv qhuav, uas yog tsim rau cov khoom siv dej thiab cov khoom siv plua plav. Kev ntxhov siab txog kev txhim kho kev ntxhov siab hauv cheeb tsam kev tsim kho hauv cheeb tsam, thiab ua kom muaj kev ntxhov siab ntev thiab ua haujlwm ruaj khov ntawm cov khoom siv. Kev sib xyaw ua ke cov thev naus laus zis thiab tsim qauv txhim kho tuaj yeem txhim kho cov khoom siv hlau, txuas ntxiv cov cuab yeej kev pabcuam, thiab txo tus nqi kho.
5. Kev tsom xam thiab cov ntaub ntawv tsis pom tseeb
Daim ntawv thov ntawm stainless hlau tej yam nyob rau hauv lub pob zeb ntug dej yog ua kom pom zoo corrosion, uas tuaj yeem tiv thaiv lub neej ntawm cov cuab yeej siv los ntawm kwv yees li 50%. Aluminium ib txwm muaj cov khoom siv tshuaj lom thiab muaj kua qaub zoo thiab alkali corrosion tsis kam. Piv nrog cov ntaub ntawv ib txwm muaj, lawv lub neej pabcuam tau nce los ntawm kwv yees li 40%, ua pov thawj qhov ua tau zoo ntawm corrosion, ua pov thawj zoo tshaj plaws corrosion ntawm aluminium alloys hauv cov pej xeem ib puag ncig.
Hydrogen embrittlement thiab Crevice corrosion yog ib qho tsis tau ua tsis tau ntawm cov hlau. Hydrogen embrittlement tshwm sim hauv ib puag ncig hydrogen, ua rau cov hlau embrittlement, tshwj xeeb tshaj yog nyob rau hauv cov kev mob siab lossis kub siab. Txhawm rau tiv thaiv cov zaub mov tsis tiav, cov ntaub ntawv ntau uas tiv taus hydrogen maj mam yuav tsum tau xaiv. Crevice corrosion feem ntau tshwm sim ntawm pob qij txha lossis ntsaws ruaj ruaj, tshwj xeeb hauv txhuas cov kab ke. Los ntawm kev txhim kho cov qauv tsim, tsis txhob siv cov khoob me me thiab kho kom muaj kev phom sij ntawm kev kho mob corrosion tuaj yeem kho tau zoo thiab lub zog ntawm cov khoom siv tuaj yeem hloov kho.
Qhov yoog tau ntawm cov ntaub ntawv cas hlau ua haujlwm tsis yog tsuas yog ntawm corrosion tsis kam ntawm cov ntaub ntawv, tab sis kuj ntawm cov khoom siv, tus nqi thiab kev pabcuam lub neej. Tam sim no, cov kev txwv ntawm cov khoom siv lub neej nyob ib puag ncig zoo thiab qhov nyuaj ntawm kev txhawb nqa ib puag ncig kev siv thev naus laus zis yuav tsum daws. Yav tom ntej kev tshawb fawb tshiab yuav tsum tsom rau kev txiav cov tshuab xws li ntse kho tus kheej kho cov txheej txheem zoo ntxiv ntawm kev siv. Ib qho ntxiv, kev txheeb xyuas tus nqi tswj hwm lub neej yuav dhau los ua tus qauv tseem ceeb rau kev ntsuas cov khoom siv. Cov kev tiv thaiv ntau yam kev tiv thaiv, sib xyaw ua ke nrog cov khoom tsim kho tshiab thiab kev txhim kho cov ntsiab lus tseem ceeb, yuav yog tus yuam sij rau yav tom ntej ntawm cov hlau cas ua xeb tshuab.
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