Carbon steel welded kav Feem ntau muab faib ua peb txheej txheem: hluav taws xob tiv thaiv vuam (ERW), muab kauv submerged arc vuam (SSAW) thiab ncaj seam submerged arc vuam (LSAW). Cov pa roj carbon steel welded kav uas tsim los ntawm peb cov txheej txheem no muaj lawv tus kheej qhov chaw nyob rau hauv daim ntawv thov teb vim lawv cov khoom sib txawv, tsim cov txheej txheem, caliber loj thiab zoo.

1. Ncaj seam hluav taws xob kuj welded yeeb nkab (ERW)

Hluav taws xob kuj welded yeeb nkab yog hom ntxov tshaj plaws ntawm cov yeeb nkab steel uas tsim nyob rau hauv kuv lub teb chaws, nrog rau cov kev siv dav tshaj plaws, cov khoom siv ntau tshaj plaws (ntau tshaj 2,000), thiab cov khoom siv ntau tshaj plaws (suav txog li 80% ntawm tag nrho cov khoom muaj peev xwm. ntawm welded kav). Cov khoom specification yog Ф20 ~ 610mm. ua lub luag haujlwm tseem ceeb. Txij li thaum xyoo 1980, txog 30 teeb ntawm ERW219-610mm units tau raug xa los ntawm txawv teb chaws. Tom qab xyoo ntawm kev xyaum ntau lawm, cov cuab yeej thev naus laus zis qib tau ua tiav zoo, thiab cov khoom lag luam zoo kuj tseem txhim kho tas li. Vim nws cov peev nyiaj tsawg, cov txiaj ntsig ceev thiab cov ntawv thov dav dav, nws tau tsim sai heev. Nrog rau kev tsim cov txheej txheem ntawm phaj CSP, nws muab cov nqi qis, txhim khu kev qha zoo raw cov ntaub ntawv, thiab tsim cov kev mob zoo rau nws txoj kev loj hlob ntxiv rau yav tom ntej. Ib feem ntawm cov khoom no tau tsim los ntawm kev ua haujlwm ntawm kev thauj mus los ntawm cov dej thiab cov qauv mus rau cov kav dej zoo thiab cov kab yeeb nkab hauv thaj tsam ntawm seamless yeeb nkab daim ntawv thov.

2. Kauv submerged arc welded yeeb nkab (SSAW)

Cov cuab yeej siv peev ntawm kauv submerged arc welded yeeb nkab yog tsawg dua, vim tias kev siv cov nqi qis qis (phaj) coil txuas txuas txuas los tsim cov kab loj (Ф1016 ~ 3200mm) welded yeeb nkab, cov txheej txheem ntau lawm yog yooj yim, kev khiav hauj lwm tus nqi yog qis, thiab nws muaj qhov zoo ntawm kev ua haujlwm qis. kuv lub teb chaws cov roj thiab cov roj kis tau tus mob kauv welded yeeb nkab tau tsim ib qho yooj yim hom raws li cov steel yeeb nkab Hoobkas koom nrog rau cov roj av system. Kev siv cov thev naus laus zis zoo xws li qhov tsis tshua muaj kev ntxhov siab tsim thiab cov yeeb nkab kawg mechanical expansion, qhov zoo ntawm cov kauv welded yeeb nkab uas tau dhau los ua kev tswj hwm nruj yog piv rau cov ncaj seam welded yeeb nkab. Nws yog hom yeeb nkab tseem ceeb siv nyob rau hauv kuv lub teb chaws cov roj thiab cov kav dej ntev ntev. Nws lub peev xwm tsim tau muaj peev xwm ua tau raws li qhov xav tau ntawm kuv lub teb chaws txoj kev siv roj thiab roj kav ntev, thiab tau raug xa tawm mus rau ntau qhov ntau.

3. Ncaj seam submerged arc welded yeeb nkab (LSAW)

Longitudinal submerged arc welding yog ib qho kev ua yeeb yaj kiab siab tshaj plaws uas tsim tawm lig hauv kuv lub teb chaws, thiab UOE thev naus laus zis tau siv yav dhau los. Nyob rau hauv xyoo tas los no, kev vam meej JCOE tau maj mam dhau los ua lwm yam thev naus laus zis tshiab hauv kuv lub tebchaws thiab ntiaj teb. Longitudinal submerged arc welded kav yog txhim khu kev qha zoo thiab yog dav siv nyob rau hauv high-pressure roj thiab roj tsheb thauj mus los kab. Vim muaj peev txheej loj ntawm chav tsev welded yeeb nkab no, cov khoom siv raw siv yog ib qho dav thiab tuab daim hlau nrog tus nqi siab, cov txheej txheem yog complex, ntau lawm efficiency yog tsawg, thiab cov khoom raug nqi siab.