Q1: Dab tsi yog ib qho kev tawm tsam dab tsi - Cov yeeb nkab corrosion rau s460NH cov yeeb nkab? Kuv yuav xaiv li cas?
Cov tshuaj tiv thaiv kev tiv thaiv kab mob sib xyaw rau S460NH Steel Yeeb, kub} Primcoat, thiab peb {}}}} txheej polyethylene (3lpe). Epoxy Zinc -} Primer nplua nuj (50}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}. Polyurethane Topcoat (50μm) muaj huab cua thiab UV tsis kam, ua rau nws haum rau cov qauv raug cai kom ntev li ntawd. Kub {{{}} dip galvanizing (zinc txheej ntau dua los yog sib npaug rau ib puag ncig uas muaj cov av noo lossis kev tiv thaiv kev nyab xeeb, muab kev tiv thaiv tau ntau dua 30 xyoo. Lub 3lpe tshuaj tiv thaiv corrosion (epoxy hmoov luj + intermediatic txheej) yog feem ntau siv rau cov kav dej tawg thiab muaj cov muaj zog rau cov av hauv av. Thaum xaiv ib txheej, xav txog thaj chaw ib puag ncig qib, tsim lub neej, thiab tus nqi.
Q2: Dab tsi anti {{- Corrosion ntsuas muaj rau S460NH cov yeeb nkab hauv cov dej hiav txwv? Nyob rau hauv cov av marine ib puag ncig, s460NH cov kav hlau yuav tsum muaj ntau txoj kev tiv thaiv corrosion Kev tiv thaiv kab mob uas raug mob rau kev tua tsiaj (xws li zinc lossis txhuas anodes) mitigates galvanic corrosion thiab yog tshwj xeeb yog tsim rau hauv underwater qauv. High -} Perform Ua Ntej Txheej Txheej (xws li Epoxy Iav Flake Xim) Tiv thaiv nthwv yaig thiab UV Kev Nyab Xeeb. Cov qauv tsim yuav tsum zam cov dej waterlogging thiab siv cov hlau stainless footeners kom tiv thaiv kev tiv thaiv Galvanic. Tsis tas li ntawd, kev tshuaj xyuas thiab kev saib xyuas ib txwm thiab txij nkawm (xws li recoating txhua tsib xyoos) yog qhov tseem ceeb rau kev ua haujlwm ntev.
Q3: Cov khoom siv Welds li cas ntawm S460NH hlau kav tiv thaiv tiv thaiv kev tiv thaiv corrosion?
Welded thaj chaw yuav tsum muaj kev tiv thaiv corrosion tshwj xeeb. Tom qab vuam, Weld Slag, Nthuav, thiab cov nplai yuav tsum tau muab tshem tawm kom huv si kom paub tseeb. High - draws epoxy lossis Elastomeric Txheej Txheem tau pom zoo rau Weld thaj chaw kom haum thiab kev cog lus. Rau cov qauv tseem ceeb, ua ntej {{4 4}} txheej corrosion}} Corrosion Primer tuaj yeem siv ua ntej part {} weld recoll recorts. Yog tias kub {- dip galvanizing yog siv, lub galvanizing ob} {} Tsuag Galvanizing kho kom muaj tom qab vuam. Tsis tas li, txheej txheej txheej txheej ntawm Welds yuav tsum yog 20% thicker tshaj li cov khoom siv los them rau cov peev xwm tsis muaj peev xwm.
Q4: Dab tsi yog qhov corrosion tsis kam ntawm s460NH cov yeeb nkab hauv cov khoom lag luam tshuaj lom neeg?
S460NH steel yeeb yeeb tshuaj ua tau zoo nyob rau hauv cov acids tsis muaj zog, xws li sulphuric acid nrog pH <4- chloride ib puag ncig. Rau cov khoom siv tshuaj lom neeg, yas li pp, PTFE) lossis roj hmab tau pom zoo kom cais cov xov xwm corrosive. Nyob rau hauv ib puag ncig muaj cov sulrod sulfide (h₂s), tiv taus sulfide kev ntxhov siab tawg (SSC) cov ntaub ntawv qib yuav tsum raug xaiv, thiab siab dua}. Tsim nyog. Kev kho cov npoo npoo (xws li passivation lossis plating) tuaj yeem txhim kho luv {} Lub sij hawm termosion tsis kam, tab sis ntev}}} lub sij hawm raug kuaj xyuas.
Q5: Yuav ua li cas txoj kev tiv thaiv corrosion ntawm S460NH cov yeeb nkab tau kuaj xyuas thiab tswj hwm?
Kev soj ntsuam txoj kev muaj xws li ultrasonic thickness ntsuas poob), EIS) los ntsuas kev pheej hmoo, thiab kev tshuaj ntsuam xyuas (rau xeb, thiab lwm yam). Thaum lub sijhawm saib xyuas, kho cov txheej ua kom puas hnyav yuav tsum tau ua ntej. Hauv zos Sandblasting thiab txuas ntxiv nrog cov txheej txheem txheej txheem qub tau pom zoo. Rau galvanized txheej, txias zinc txau tuaj yeem siv los kho cov kev puas tsuaj hauv zos. Tsim cov digosion corrosion tswj cov ntaub ntawv thiab kev saib xyuas txij nkawm tuaj yeem ua kom cov tswv yim corrosion thiab txuas lub neej ntawm cov qauv.
