1.} Dab tsi yog corrosion load ntawm cov tub rog marine?
Lub nkoj marine yog "ntuj raug txim-theem" scene rau hlau corrosion:
Ntsev tshuaj tsuag / chloride ions: chloride ions (clj) nyob rau hauv seabaterwater corrosion .
Cov av noo: Nrig ua tsis tu ncua av txhawb nqa oxidation kev hloov pauv .
Cov kab mob microbial (xws li sulfate-txo tus kab mob): accelerates hauv zos corrosion {}}
Kev sib txig thaj chaw + chaw ua haujlwm
2. Dab tsi yog qhov tsis txaus ntseeg ntawm Galvanized steel hauv cov av marine chaw?
Cov txheej zinc tau nrawm nrawm hauv cov tshuaj ntsev (feem ntau lifespan <5 xyoos), thiab ib zaug zinc txheej yuav xeb yuav xeb sai thiab cov.
{{0 {}} Dab tsi yog cov tseem ceeb ntawm cov tub rog hauv marine chaw?
Chloride ion corrosion tsis kam
Molybdenum (Mo) Txhawb Nqa: 316 Stainless Hlau muaj 2 ~ 3% molybdenum, uas txhim kho kev muaj peev xwm tiv thaiv pitting thiab crevice corrosion.
Kev sim ua piv txwv: hauv 3 {{{{{{{{}} 2% tus nqi ntsev, tsuas yog 1/3 ntawm 304 stainless hlau thiab 1/20 ntawm cov hlau galvanized.
Passivation zaj duab xis tswj hwm tus kheej: txawm hais tias cov chromium oxide (cr₂o₃) zaj duab xis puas ntsoog, nws tuaj yeem hloov ceev ceev rau hauv cov pa dej oxygen}
Cov cuab yeej muaj me nyuam
Lub zog khaws cov nqi: Lub zog tensile ntawm 316 txo qis dua 5% tom qab tau muab raus hauv hiav txwv galvanized yog nquag
Kev ntxhov siab corrosion cracking (SCC) Kuj: 316L (qis carbon hom) tau yuav luag tsis muaj kev pheej hmoo SCC nyob rau ib puag ncig dej hiav txwv 80.
4. Dab tsi yog cov kev txwv ntawm cov hlau galvanized hauv marine engineering?
Cov txheej zinc tab tom noj dhau sai: cl⁻ hauv dej hiav txwv thiab zawm tshuaj (xws li zinc rau soluble tshuaj (uas tsis tuaj yeem tsim cov txheej tiv thaiv .
Thaj chaw vuam dub: Tom qab zinc txheej nyob rau hauv tshav kub-cuam tshuam ntau dua 5 zaug ntawm cov duab ntawm niam txiv (saib daim duab hauv qab).
Galvanic corrosion kev pheej hmoo: yog hais tias nyob rau hauv kev sib cuag nrog stainless hlau / tooj liab, galvanized steel raws li anode yuav ua kom nrawm dua kev npau taws {}}
{{0 {}} Cov ntaub ntawv Engineering dab tsi ntawm cov hlau stainless?
Cov Txheej Txheem Tseem Ceeb: Platform Thauj Tog Hlua, Cov Yeeb Nkab, Kev Pab Cuam Tshuam, Kev Saib Xyuas Kev Tiv Thaiv Hluav Taws Kub (316L Ceg Rau Seabater Twj) {4 4}}
Qhov Chaw Tshwj Xeeb: Submarine Cable Armor (316L Hlau Anti-microbial corrosion), tshuaj ntsuab evaporator .