Kev siv cov yeeb nkab steel hauv marine engineering yog ntau heev.Muaj kwv yees li peb hom ntawm cov kav hlau steel hauv ob lub tshuab loj ntawm shipbuilding thiab marine engineering: steel kav hauv cov pa system, steel kav siv hauv kev tsim kho, thiab cov kav hlau steel rau lub hom phiaj tshwj xeeb. Cov nkoj sib txawv thiab cov phiaj xwm dej hiav txwv muaj ob qho tib si cov pa thiab cov tshuab tshwj xeeb.

Kev pabcuam lub neej ntawm cov nkoj feem ntau yog kwv yees li 20 xyoo, thiab kev pabcuam lub neej ntawm cov kav dej steel hauv marine engineering tuaj yeem ncav cuag tsawg kawg 40 xyoo. Ntxiv nrog rau cov txheej txheem ib txwm siv, tseem muaj cov cuab yeej tshwj xeeb drilling thiab cov cuab yeej tsim khoom, nrog rau kev ua haujlwm ntws rau cov roj av, cov roj av liquefied thiab liquefied natural gas hauv offshore engineering.
Los ntawm kev suav, nws pom tias kev noj txhua xyoo ntawmLoj-inch ncaj seam steel kav (LSAW)rau kev siv dej hiav txwv yog 5 lab tons, txog 500,000 cov kav dej, ntawm 70% ntawm cov kav hlau txuas nrog. Tsuas yog 300,000-tuj super-loj roj tanker tuaj yeem siv ntau ntau mais ntawm cov kav hlau thiab cov yeeb nkab fittings, thiab cov ntsiab lus ntawm cov yeeb nkab steel ib leeg yog nyob ib ncig ntawm 1,000-1,500 tons. Tau kawg, tus nqi ntawm cov kav hlau siv hauv cov qauv hull ntawm 40,000 tons tseem tsis tshua muaj. Tsis tas li ntawd, xav txog tib hom nkoj, muaj ntau lub nkoj tsim. Rau 300,000-tuj super-loj FPSO, cov kav dej ntau tshaj 40,000 thiab qhov ntev tshaj 100 km, uas yog 3-4 npaug ntawm tib lub tonnage. Yog li ntawd, kev lag luam shipbuilding tau dhau los ua tus neeg siv khoom loj ntawm kev lag luam steel yeeb nkab.

Lub hom phiaj tshwj xeeb steel yeeb nkab: yog hais txog cov yeeb nkab tshwj xeeb uas siv rau hauv qhov chaw ua haujlwm tshwj xeeb thiab nruab nrab ua haujlwm. Cov kav dej submarine roj yog cov yeeb nkab tshwj xeeb tshwj xeeb, uas yog qhov xav tau zoo thiab muaj cov yam ntxwv ntawm lub zog siab, me me kam rau ua thiab zoo corrosion kuj.

Ntxiv nrog rau cov pa thiab cov tshuab tshwj xeeb uas tau hais los saum no, cov kav dej tuab-walled ncaj seam steel kav yog siv rau hauv ntau cov qauv, xws li cov tsho, cov kab hauv qab steel, casings, mooring brackets, helicopter channels, flare towers, thiab lwm yam. walled ncaj seam steel yeeb nkab muaj ntau yam specifications, siab raw khoom, thiab muaj tib txoj kab uas hla, txawv txoj kab uas hla, txawv phab ntsa thickness, Y-hom, K-hom, T-hom yeeb nkab pob qij txha. Xws li cov tsho, steel pawg, lub taub hau dej tsho, thiab lwm yam, feem ntau loj-inch tuab-walled ncaj seam steel kav, feem ntau dov los ntawm steel daim hlau.

Ntxiv nrog rau qhov yuav tsum tau ua ntawm tuab-walled ncaj seam steel kav, nws cov kev xav tau corrosion kuj tseem siab heev. Vim tias cov yeeb nkab steel raug dej thiab ntau yam xov xwm hauv dej rau lub sijhawm ntev, kev xeb ntawm cov yeeb nkab steel yog qhov hnyav heev, yog li cov tuab-walled ncaj seam steel yeeb nkab yuav tsum tau kho nroganti-corrosionua ntej siv.