Dab tsi yogcorrosion ntawm filiform
Filiform corrosion (FFC), tseem hu ua underfilm corrosion, yog ib hom corrosion uas tshwm sim nyob rau hauv coated hlau, feem ntau nyob rau hauv cov organic coatings xws li xim. Nws zoo nkaus li me me, cab-zoo li filaments rau ntawm cov hlau, thiab kis tau rau hauv cov txheej tiv thaiv los yog xim zaj duab xis, uas tuaj yeem ua rau cov txheej txheem tsis zoo thiab ua rau cov hlau hauv qab ua kom corrosion ntxiv.
Filiform corrosion yog pib los ntawm kev nkag mus ntawm noo noo thiab oxygen los ntawm kev puas tsuaj los yog ntxeem tau txheej, uas ua rau lub zoo meej ib puag ncig rau corrosion tshwm sim. Cov txheej txheem corrosion pib ntawm qib microscopic thiab tuaj yeem sib kis tau sai, ua rau muaj kev puas tsuaj loj rau saum npoo ntawm cov hlau.
Hom corrosion no feem ntau pom nyob rau hauv marine ib puag ncig, qhov twg cov dej ntsev thiab cov av noo ntau. Nws tuaj yeem tshwm sim hauv thaj chaw uas muaj cov pa phem ntau, xws li thaj chaw muaj kev lag luam thiab hauv nroog.
Txhawm rau tiv thaiv lossis txo qis filiform corrosion, nws yog ib qho tseem ceeb uas yuav tsum tau siv cov txheej txheem siab - zoo rau cov hlau nto uas muab kev tiv thaiv zoo tiv thaiv ya raws thiab oxygen nkag mus. Tsis tas li ntawd, kev saib xyuas tsis tu ncua thiab kev tshuaj xyuas cov chaw coated tuaj yeem pab txheeb xyuas thiab daws txhua yam teeb meem ua ntej lawv hnyav dua.
Zuag qhia tag nrho, filiform corrosion yog ib hom kev xeb uas tuaj yeem ua rau cov hlau tsis zoo yog tias tsis kho. Nws yog ib qho tseem ceeb kom nkag siab thiab txheeb xyuas cov cim ntawm filiform corrosion los tiv thaiv kev puas tsuaj ntxiv thiab ua kom lub neej ntev ntawm cov hlau nto.
Cov yam ntxwv cuam tshuam ntawm filiformcorrosion
Filiform corrosion feem ntau yog tshwm sim los ntawm kev npaj tsis txaus ntawm cov hlau nto ua ntej siv txheej, uas tso cai rau cov dej noo nkag mus rau txheej txheej thiab ua rau cov hlau nto. Cov tshuaj tiv thaiv no tsim cov hlau oxide, uas rhuav tshem cov txheej thiab ua rau filiform corrosion. Lwm yam tseem ceeb uas tuaj yeem ua rau muaj kev txhim kho filiform corrosion xws li raug dej ntsev, acidic lossis alkaline ib puag ncig, cov av noo siab, thiab kub siab.
- Cov av noo yog ib qho tseem ceeb uas cuam tshuam rau FFC. Cov av noo siab tuaj yeem ua rau muaj qhov tshwm sim ntawm FFC. Lub xub ntiag ntawm noo noo ntawm cov hlau nto yog qhov tseem ceeb rau kev pib ntawm FFC. Cov dej noo kuj tuaj yeem tsim cov pa oxygen- ib puag ncig nplua nuj uas tuaj yeem ua kom cov txheej txheem corrosion. Yog li ntawd, tswj cov av noo nyob ze ntawm cov hlau saum npoo yog qhov tseem ceeb hauv kev tiv thaiv FFC.
- Kub yog lwm yam tseem ceeb uas cuam tshuam rau FFC. FFC feem ntau tshwm sim ntawm qhov kub thiab txias. Ntawm qhov kub siab, cov txheej txheem ntawm cov hlau tuaj yeem o tuaj yeem ua rau cov kab nrib pleb thiab qhov tsis xws luag hauv txheej thiab tso cai rau cov dej noo thiab lwm yam corrosive nkag mus rau saum npoo. Yog li ntawd, kev saib xyuas qhov kub ntawm ib puag ncig ntawm qhov chaw hlau yog qhov tseem ceeb hauv kev tiv thaiv FFC. Kev sib koom ua ke ntawm qhov kub thiab av noo ntawm kev sib cuam tshuam ntawm filiform corrosion yog qhov tseem ceeb tshaj qhov cuam tshuam ntawm ib qho av noo, nrog rau qhov kub thiab txias 40 degree, txheeb ze av noo 70% thiab kub yog 20 degree, txheeb ze av noo 95% ob qho tib si filiform corrosion ib puag ncig yog tsim rau qhov tsim nyog tshaj plaws.
- Cov ntsiab lus oxygen hauv ib puag ncig ib puag ncig kuj ua lub luag haujlwm tseem ceeb hauv FFC. Corrosion yog txheej txheem electrochemical uas yuav tsum muaj cov pa oxygen molecules. Ib qho dhau ntawm cov pa oxygen molecules hauv ib puag ncig ib puag ncig tuaj yeem ua kom tus nqi ntawm FFC. Atmospheric oxygen cov ntsiab lus (21%) feem ntau suav hais tias yog qhov qis tshaj plaws rau filamentous corrosion. Filiform corrosion yog qhov zoo tshaj plaws los ntawm cov ntsiab lus oxygen ntawm li 50%. Kev tshawb fawb qhia tau hais tias cov filamentous corrosion tuaj yeem nrawm nrawm thaum cov ntsiab lus oxygen nce mus rau ntau dua 35%. Kev siv cov roj inert nyob rau hauv cov huab cua nyob ib ncig ntawm cov hlau nto tuaj yeem pab tiv thaiv FFC los ntawm kev txo qis cov pa oxygen hauv ib puag ncig.
- Txheej txheej kuj tseem ceeb rau kev tiv thaiv FFC. Cov txheej txheej tsis zoo, xws li cov uas muaj cov hnab ntim cua, tuaj yeem ua rau cov dej noo nkag mus rau saum npoo, ua rau corrosion. Cov txheej uas muaj qhov ntxeem tau dhau los lossis tuab dhau tuaj yeem ua rau muaj qhov ua rau FFC. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tau xaiv cov txheej txheem uas muaj kev tiv thaiv zoo rau FFC thiab xyuas kom meej tias cov txheej txheem siv tau raug.
- Thaum kawg, kev kho hlau saum npoo tuaj yeem cuam tshuam kev tiv thaiv FFC. Kev npaj deg, xws li ntxuav thiab tshem tawm cov kab mob ua ntej txheej, tuaj yeem tiv thaiv FFC. Kev kho tshuaj lom neeg kuj tseem siv tau los tsim kev thaiv ntawm cov hlau nto thiab txheej txheej, tiv thaiv cov dej noo thiab lwm yam corrosive los ntawm kev nkag mus rau saum npoo.
Hauv kev xaus, ntau yam cuam tshuam rau qhov tshwm sim ntawm FFC, suav nrog qhov kub thiab txias, av noo, cov ntsiab lus ntawm cov pa oxygen, txheej txheej, thiab kev kho cov hlau. Los ntawm kev ua raws li kev tswj hwm ib puag ncig kom zoo, xaiv cov qib siab - cov txheej txheem zoo, thiab ua cov txheej txheem hlau zoo, FFC tuaj yeem tiv thaiv.
Filiform Accelerate Test Chamber
Filiform Accelerated Corrosion Tester
NrogFiliform Accelerate Corrosion Test Chamber, koj tuaj yeem kuaj qhov kev loj hlob ntawm FFC ntawm qhov sib txawv ntawm qhov kub, av noo thiab ntsev concentrations.
LIB Salt Mist Corrosion Test Chamber for Filiform Corrosion
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LIB Salt Mist Corrosion Test Chamber
Hauv LIB's Salt Mist Corrosion Test Chamber, thawj 6 teev simulate tooj liab-accelerated acetic acid ntsev tsuag (CASS):
Kev daws:5 % NaCl + 0.26 g/L CuCl₂ ntawm pH 3.1–3.3
Kub:35 ± 2℃(PT100 Class A sensor raug ± 0.5 degree)
Txau Siab:83kp ua
Deposition Rate:1-2 mL / 80 cm² / h
Lub tshuab xa tshuaj muaj zog muaj zog- suav nrog cov tshuaj tiv thaiv corrosion-resistant quartz nozzles thiab kev tswj pH meej- xyuas kom muaj huab cua ntom ntom. Tsis siv neeg ntsuas dej-theem thiab kev tiv thaiv kev kub hnyiab ua kom tsis muaj kev cuam tshuam kev ua haujlwm, yog li koj ua tiav kev ua raws li ISO 9227 thiab txhim khu kev qha pib cov xwm txheej rau kev loj hlob filiform.
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LIB Temperature and Humidity Test Chamber
Kauj Ruam 2 - Kub-kub, High-Humidity raug
Muab cov qauv sau rau hauv LIB's Temperature & Humidity Environmental Chamber los tsav filiform propagation nyob rau hauv kev ntxhov siab:
Kub:65 ± 1 degree
Humidity:85 ± 3% RH
Airflow:6-24 m / min ntawm kev sib xyaw centrifugal ntxuam
Vim li cas LIB's Chambers Workflow muab cov txiaj ntsig zoo dua?
- Unmatched Tswj & Uniformity
LIB cov chav siv PT100 Class A kub sensors nrog ± 0.001℃daws teeb meem, nrog rau precision RH controllers uas tuav cov av noo nyob rau hauv ± 2.5% RH. Hauv chav dej ntsev, corrosion- tiv thaiv quartz nozzles xa cov nplua, zoo li huab cua ntawm qhov tso nyiaj ntawm 1-2 mL / 80 cm² / h, thaum pH kev tswj xyuas kom zoo ib yam tshuaj tsuag. Kev tswj theem no tshem tawm qhov kub thiab txias, huab cua tsis sib xws, thiab ib puag ncig drift- kom ntseeg tau tias koj cov ntaub ntawv kuaj corrosion yog qhov tseeb thiab rov tsim dua tshiab.
- Ceev Tsis Muaj Teeb Meem
LIB qhov kub thiab av noo chamber nta kev lag luam- cov nqi nce qib: 3℃/ min cua sov thiab 1℃/ min txias, tso cai rau kev hloov pauv sai ntawm kev sim. Hauv cov tshuaj tsuag ntsev, cov dej tsis siv neeg - nrhiav kom tau qib thiab qhuav - tiv thaiv kub hnyiab txo qis sijhawm. Ua ke, cov yam ntxwv no tso cai rau koj lub chaw kuaj sim ntau dua hauv lub sijhawm tsawg, txhim kho cov txheej txheem txheej txheem sai dua, thiab txo qis kev loj hlob yam tsis muaj kev sim siab.
- Ntev - Lub Sijhawm Kev Ntseeg
Tsim los ntawm SUS304 stainless-steel interiors thiab A3-steel sab nrauv, LIB qhov kub thiab av noo chamber yog tsim los tiv thaiv corrosion nyob rau lub sij hawm ntev kev sim. Integrated centrifugal kiv cua muab cov huab cua tsis tu ncua ntawm 6-24 m / min, txhawb nqa kev nthuav tawm zoo ib yam ntawm filiform tshaj 672-teev sim ua ntu zus. Tus kheej-Kev ntxuav cov dej lim dej txo cov kev xav tau ntawm kev saib xyuas, ua rau kev ua haujlwm txuas ntxiv, tsis muaj neeg saib xyuas rau ob qho tib si luv luv thiab mus sij hawm ntev.
- Comprehensive Safety & Service
Txhua chav suav nrog kev ntsuas kev nyab xeeb xws li kev tiv thaiv tam sim no thiab theem- kev soj ntsuam raws li. Cov qauv tsim qauv muab kev yooj yim - nkag mus rau cov chaw nres nkoj pabcuam thiab kev kuaj xyuas tsis siv neeg. LIB txhawb nqa txhua lub tsev nrog 3- xyoo lav, kev txhawb nqa kev mus ntev, thiab kev nkag mus rau cov khoom seem thoob ntiaj teb - muab kev ntseeg siab rau koj ob qho tib si koj cov khoom siv thiab koj cov ntaub ntawv.
- Txhim kho koj qhov kev kuaj Corrosion-Testing
Los ntawm kev sib koom ua ke LIB's Salt Mist Corrosion Test Chamber rau nrawm CASS raug nrog nws Qhov Kub & Humidity Test Chamber rau kev nthuav tawm filiform, koj tau txais ib qho kev daws teeb meem raws li SAE J2635 thiab ISO 9227 tus qauv. Qhov no ob chav chamber txoj kev ua kom zoo dua qhov raug, txo lub sij hawm voj voog, thiab xa cov ntaub ntawv koj tuaj yeem ntseeg tau -ua kom koj cov txheej txheem ua tau zoo hauv thaj chaw.
Hu rauLIBniaj hnub no los tsim ib qho kev tsim kho Filiform Corrosion Test teeb uas ua tau raws li koj qhov nyuaj tshaj R & D, kev tswj kom zoo, thiab kev ua raws cai.
