Cov yeeb nkab ERW thiab cov yeeb nkab LSAW yog ob qho tib si cov yeeb nkab ncaj nraim, uas feem ntau yog siv rau kev thauj cov kua dej, tshwj xeeb tshaj yog cov kav dej ntev rau roj thiab roj av. Qhov sib txawv tseem ceeb ntawm ob qho yog cov txheej txheem vuam. Cov txheej txheem sib txawv ua rau cov yeeb nkab muaj cov yam ntxwv sib txawv thiab tsim nyog rau cov xwm txheej siv sib txawv.

Lub raj ERW siv cov vuam uas tsis kam siab thiab siv cov hlau kub-dov broadband ua cov khoom siv raw. Raws li ib qho ntawm cov kav dej siv dav tshaj plaws niaj hnub no, vim yog kev siv cov hlau dov / kauj nrog cov qhov ntev sib xws thiab meej ua cov khoom siv raw, nws muaj qhov zoo ntawm qhov tseeb siab, phab ntsa tuab sib xws, thiab qhov zoo ntawm qhov chaw. Cov yeeb nkab muaj qhov zoo ntawm cov xov luv luv thiab siab siab, tab sis cov txheej txheem no tsuas yog tsim cov yeeb nkab me me thiab nruab nrab-txoj kab uas hla nyias-phab ntsa (nyob ntawm qhov loj ntawm cov hlau lossis phaj hlau siv ua cov khoom siv raw). Cov xov vuam yog qhov yooj yim rau cov xim grey, tsis muaj fused, grooves thiab cov teeb meem corrosion. Cov chaw siv dav dav tam sim no yog cov roj hauv nroog thiab cov khoom siv roj nyoos.

Cov yeeb nkab LSAW siv cov txheej txheem vuam submerged arc, uas siv ib lub phaj nruab nrab-tuab ua cov khoom siv raw, thiab ua cov vuam sab hauv thiab sab nraud ntawm qhov chaw vuam thiab nthuav dav txoj kab uas hla. Vim muaj ntau yam khoom tiav siv cov phaj hlau ua cov khoom siv raw, cov vuam muaj cov tawv zoo, plasticity, uniformity thiab compactness, thiab muaj qhov zoo ntawm cov yeeb nkab loj txoj kab uas hla, phab ntsa yeeb nkab tuab, tiv taus siab siab, tiv taus kub qis thiab tiv taus corrosion. Thaum tsim cov kav dej roj thiab roj av ntev-lub zog, siab-toughness, zoo, feem ntau ntawm cov yeeb nkab hlau xav tau yog cov yeeb nkab loj-txoj kab uas hla tuab-phab ntsa ncaj-seam submerged arc welded. Raws li tus qauv API, hauv cov kav dej roj thiab roj loj, thaum hla dhau Class 1 thiab Class 2 thaj chaw xws li thaj chaw alpine, seabeds, thiab thaj chaw nroog uas muaj neeg nyob coob, cov yeeb nkab ncaj-seam submerged arc welded yog tib hom yeeb nkab xaiv.