Ncaj seam welded yeeb nkab (ERW ncaj seam welded steel yeeb nkab) yog tsim los ntawm kub dov phaj ntawm lub tshuab tsim, cov nyhuv ntawm daim tawv nqaij thiab cov nyhuv sib thooj ntawm qhov muaj zaus tam sim no, melting ntawm cov yeeb nkab ntug cua sov rau lub extrusion roller siab vuam kom ua tiav ntau lawm.

Daim ntawv thov ntawm high-frequency kuj welding txoj kev nyob rau hauv pipeline ntau lawm nyob rau hauv lub xyoo 1950s tau pom ntau thiab paub tab ntau lawm technology thiab nruam txhim kho cov khoom zoo nyob rau hauv lub xyoo dhau los los yog li ntawd.

Ua ntej ntawm tag nrho cov, nyob rau hauv qhov zoo ntawm raw cov ntaub ntawv, zus tau tej cov ERW steel yeeb nkab tau zoo txhim khu kev qha, muaj pes tsawg leeg ntawm steel tsim ntawm tsawg carbon, tsawg P, S, micro-alloying; smelting txheej txheem smelting, ladle refining, nqus degassing, nruam casting thiab lwm yam tshiab technologies Ntxiv nrog rau cov ERW tswj dov thiab txias dov txheej txheem, lub tshuab tau enabled qhov luaj li cas ntawm kub dov steel strips loj thiab nruab nrab caliber ERW steel hlab rau yuav tau zoo heev nyob rau hauv tsos zoo, lub cev muaj zog thiab chemical zog. Cov raj xa dej uas tsim los ntawm Baoshan Hlau thiab Hlau Tuam Txhab, qib siab tshaj plaws ntawm kub dov sawb hlau hauv kuv lub teb chaws, tau ntsib American Petroleum Institute API 5L tus qauv thiab yog nyob rau qib siab thoob ntiaj teb.

Ua raws li qhov nruab nrab thiab loj txoj kab uas hla ERW molding vuam thiab kev kho cua sov txheej txheem ntawm cov txheej txheem ntau lawm kom ua tiav lub computer tsis siv neeg tswj, siab zaus thiab lub computer tsis siv neeg them nyiaj system vuam txheej txheem cua sov input zog yog zoo tswj los tiv thaiv vuam kub input vuam txias los ntawm qis. welding tshav kub input thiab ntau combustion tshwm sim los ntawm lub zog siab. Kev tswj xyuas qhov kub thiab txias tso cai rau cov txheej txheem kho cua sov kom ua tiav cov txiaj ntsig zoo tshaj plaws raws li cov txheej txheem yuav tsum tau ua, ua kom muaj txiaj ntsig zoo ntawm cov yeeb nkab steel vuam thiab thaj chaw muaj cua sov.

Tsis tas li ntawd, kev nce qib ntawm ERW raj ncaj seam welded yeeb nkab tshuaj xyuas tshuab tau ua tiav hauv online lossis offline ultrasonic lossis eddy tam sim no weld kev pheej hmoo puas tsuaj, thiab kev ntsuas hydraulic siab yuav nyob rau hauv kev saib xyuas ntawm lub computer, kev ntsuam xyuas kev ntxhov siab thiab kev tswj hwm. Kev nce qib thiab kev siv ntawm tus qauv thiab specification APIQ1 ISO9000 series kom muaj kev ruaj ntseg zoo nyob rau hauv tag nrho cov txheej txheem ntawm ntau lawm, tshuaj xyuas, muag thiab kev pab cuam ntawm nruab nrab thiab loj calibre ERW ncaj seam steel kav.

Nyob rau hauv xyoo tas los no, ntau lub teb chaws tau nquag siv ERW ncaj seam welded yeeb nkab thiab kauv welded yeeb nkab seamless yeeb nkab nyob rau hauv qhov chaw, nyob rau hauv industrialized lub teb chaws, ERW ncaj seam yeeb nkab txoj kab uas hla Ф610mm tsawg, ERW steel yeeb nkab tau txog li 70% ntawm qhov kev faib ua feem. Peb lub peev xwm ntau lawm ntawm ERW Longitudinal kuj muaj lub sijhawm txhim kho.