Submerged Arc Welded (SAW) steel yeeb nkab yog ib hom yeeb nkab uas yog welded siv hluav taws xob arc submerged nyob rau hauv granular flux. Txoj kev vuam no feem ntau yog siv rau kev tsim cov kav hlau loj loj rau ntau yam kev lag luam. SAW steel yeeb nkab muaj ntau lub cev thiab qhov zoo uas ua rau nws xaiv tau rau ntau daim ntawv thov, suav nrog kev tsim kho, roj thiab roj, kev thauj mus los, thiab kev kho dej.

Cov kav dej no feem ntau yog tsim los ntawm ob hom kev siv vuam:ob submerged arc vuamthiabelectroslag vuam. Lawv tuaj nyob rau hauv ntau hom thiab specifications raws li ib tug yuav tsum tau ntawm daim ntawv thov tshwj xeeb.

Cov specifications ntawm SAW kav feem ntau muab faib ua ob hom: ncaj seam welded kav thiab kauv welded kav.

Ncaj seam welded kav feem ntau siv hauv kev lag luam xws li kev tsim kho, kev thauj mus los, thiab roj thiab roj,

whereas kauv welded kav yog nyiam nyob rau hauv kev kho dej thiab dej phwj industries.

Cov qauv thoob ntiaj teb rau SAW kav suav nrog API 5L, ASTM A53, ASTM A252, ASTM A139, thiab ASME B36.10M. Cov qauv no qhia qhov ntev, tshuaj muaj pes tsawg leeg, thiab cov khoom siv kho tshuab ntawm SAW kav. Lawv kuj txhais cov kev cai rau kev kuaj, tshuaj xyuas, thiab ntawv pov thawj ntawm cov kav dej.

Cov qib steel siv hauv SAW cov kav dej sib txawv nyob ntawm qhov kev thov tshwj xeeb. Piv txwv li, ASTM A53 qib B feem ntau siv rau cov kab dej, thaum API 5L qib X65 yog qhov nyiam rau cov kav dej thiab roj. Lwm cov qib steel siv feem ntau suav nrog ASTM A252 qib 2 thiab 3, thiab ASTM A139 qib B.

Ib qho ntawm cov khoom tseem ceeb ntawm SAW steel yeeb nkab yog nws lub zog siab. Hom yeeb nkab no yog tsim los ntawm cov hlau zoo uas tau raug kho los txhim kho nws lub zog thiab kav ntev. SAW kav dej muaj peev xwm tiv taus siab, ua rau lawv zoo tagnrho rau kev siv hauv kev thauj mus los ntawm cov kua thiab roj.

Lwm qhov kom zoo dua ntawm SAW steel yeeb nkab yog nws zoo heev corrosion kuj. Cov kua dej granular siv thaum lub sijhawm vuam tsim cov txheej txheem tiv thaiv ntawm cov hlau nto, uas tiv thaiv xeb thiab lwm yam corrosion. Qhov no ua rau cov kav dej SAW zoo tagnrho rau siv nyob rau hauv ib puag ncig hnyav, xws li offshore roj rigs lossis tshuaj ua cov nroj tsuag.

Ntxiv rau nws cov khoom siv lub cev, SAW steel yeeb nkab muaj ob peb lwm yam zoo. Piv txwv li, nws yog ib qho yooj yim los tsim nyob rau hauv ntau qhov ntau, ua rau nws muaj txiaj ntsig zoo xaiv rau ntau daim ntawv thov. SAW kav dej kuj muaj lub neej ua haujlwm ntev, uas yuav pab txo qis kev txij nkawm thiab hloov cov nqi.

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