S355J2W steel phaj puas tuaj yeem siv rau hauv thaj chaw marine?

Dec 15, 2025 Tso lus

S355J2W steel phaj tsis pom zoo rau kev siv ncaj qha nyob rau hauv ib puag ncig marine hnyav, tab sis nws tuaj yeem siv rau hauv cov xwm txheej me me hauv hiav txwv nrog cov phiaj xwm tiv thaiv.
 

Cov kev txwv nyob rau hauv Severe Marine Environments

 

S355J2W yog huab cua qib steel qib optimized rauatmospheric corrosion kujnyob rau hauv cov cheeb tsam nyob deb nroog, suburban, los yog me me industrial cheeb tsam. Marine ib puag ncig yog tus cwj pwm los ntawm cov ntsiab lus ntawm cov tshuaj chloride ions (los ntawm cov tshuaj tsuag ntsev, dej hiav txwv txaws, los yog tidal immersion), uas tuaj yeem nkag mus rau cov hlau lub ntuj patina thiab ua raupitting corrosionthiabcorrosion kuj.

Rau thaj tsam li ntawm 1 km ntawm ntug dej hiav txwv (muaj cov ntsev ntsev ntau) lossis thaj chaw tidal (kev sib cuag dej hiav txwv ncaj qha), patina ntawm S355J2W tsis tuaj yeem tsim ib qho kev thaiv txaus tiv thaiv chloride nres. Qhov no yuav ua rau kom ceev substrate corrosion, txo cov kev pab cuam lub neej ntawm steel phaj ho.

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Kev siv tau hauv Mild Marine Scenarios + Kev Tiv Thaiv Kev Ntsuas

 

S355J2W tuaj yeem siv hauvthaj chaw ntug dej hiav txwv ntau tshaj 3 km deb ntawm ntug dej(tsawg ntsev tsuag concentration) yog siv cov kev tiv thaiv nram qab no:

Ua ntej -patination kho: Ua lub Hoobkas- tswj patination ua ntej kev teeb tsa los tsim cov txheej txheem oxide tuab uas ua kom muaj zog tiv thaiv cov tshuaj tsuag ntsev.

Ntug sealing: Siv lub tshuab ua pa tawm los tiv thaiv-corrosion sealant los txiav cov npoo, welds, thiab lwm qhov chaw tsis zoo los thaiv cov tshuaj chloride ion infiltration.

Tus qauv tsim optimization: Tsis txhob muab cov crevices los yog cov dej nkag; xyuas kom zoo airflow nyob ib ncig ntawm cov hlau phaj kom tsis txhob ya raws thiab ntsev tsub zuj zuj.

Kev saib xyuas tsis tu ncua: Yaug qhov chaw nrog dej tshiab txhua 1-2 lub hlis kom tshem tawm cov ntsev deposits; kho patina puas nrog lub xeb accelerator tam sim ntawd.

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Alternative rau Severe Marine Environments

 

Yog tias siv ncaj qha rau hauv thaj chaw tidal lossis siab - thaj chaw ntsev dej hiav txwv, nws yog qhov zoo dua los xaivmarine- qib stainless hlau (piv txwv li, 316L)los yogcarbon steel nrog hnyav-lub luag haujlwm tiv thaiv-corrosion txheejes tsis txhob S355J2W, raws li cov ntaub ntawv no muaj zog chloride corrosion kuj.

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