LSAW simbi pombii pombi yesimbi inowirirana kwenguva refu. Kazhinji yakakamurwa kuita metric welded simbi pombi, welded dzakatetepa-rusvingo pombi, transformer kutonhora mafuta pombi uye zvichingodaro. Iyo yakatwasuka seam welded pombi ine yakapusa kugadzirwa maitiro, yakakwirira kugadzirwa kwehunyanzvi, mutengo wakaderera, uye kukurumidza kusimudzira. LSAW simbi pombi zvinoenderana nemaitiro ekugadzira inogona kukamurwa kuita yakakwirira-frequency yakatwasuka musono simbi pombi uye yakanyura arc welded yakatwasuka musono simbi pombi. Submerged arc welded straight seam simbi mapaipi akakamurwa kuita UOE, RBE, uye JCOE mapombi esimbi zvinoenderana nenzira dzakasiyana dzekuumba. Inotevera inotsanangura yakajairika yakakwirira-frequency yakatwasuka seam simbi pombi uye yakanyura arc yakakwenenzverwa yakatwasuka musono simbi pombi yekugadzira maitiro.

• Kurova: Mushure mekunge ndiro yesimbi inoshandiswa kugadzira yakakura-diameter yakanyura-arc welded yakatwasuka-yakabatana mapaipi esimbi inopinda mumutsara wekugadzira, yakazara-plate ultrasonic inspection inotanga kuitwa;

 

• Mupendero wekugaya: Kuburikidza nemuchina wekugaya, mipendero miviri yendiro yesimbi inogayiwa kaviri kuti iwane hupamhi hweplate inodiwa, plate edge parallelism uye groove chimiro;

 

• Pre-bend: Pre-bending machine for pre-bending the edge kuitira kuti mupendero webhodhi uve ne curvature inosangana nezvinodiwa;

 

• Kugadzira: Chekutanga, hafu yeplate yesimbi isati yabhenda inodhindwa uye inodhindwa kuita "J" chimiro pamushini wekugadzira JCO. Imwe hafu yeplate yesimbi zvakare yakakotama uye yakatsikirirwa mu "C" chimiro kuti iite kuvhura. Chimiro che "O".

 

• Pre-welding: Mushure mekugadzirwa kweiyo yakatwasuka musono yakakwenenzverwa simbi pombi majoini uye inopfuurira welding uchishandisa gasi shielded welding (MAG);

 

• Welding yemukati: Shandisa vertical multi-waya undermerged arc welding (kusvika kune ina waya) kupinza mukati meiyo yakatwasuka musono pombi yesimbi;

 

• Outer welding: Shandisa vertical-multi-waya yakanyura arc welding kuti weld kunze kweLSAW simbi pombi;

 

• Ultrasonic inspection I: 100% kuongororwa kwemukati nekunze welds ye longitudinal welded steel pipe uye nheyo yesimbi kumativi ose maviri e weld;

 

• X-ray yekuongorora I: 100% X-ray yeindasitiri yekuongorora terevhizheni yemukati nekunze welds, uchishandisa masisitimu ekugadzirisa mifananidzo kuti ave nechokwadi chekunzwa kwekunzwa;

 

• Yakawedzera dhayamita: Iyo yakazara-yakareba-yakadzika-arc welded yakatwasuka seam simbi pombi inowedzerwa kuti ivandudze dimensional kurongeka kwepombi yesimbi uye kugoverwa kwemukati kushushikana kwepombi yesimbi kunovandudzwa;

 

• Hydraulic pressure test: Iyo dhayamita yemudzi wepombi yesimbi yakawedzerwa inoedzwa pamushini we hydrostatic yekuyedza kuti ive nechokwadi chekuti pombi yesimbi inosangana neinodiwa yekumanikidza. Muchina wacho une otomatiki kurekodha uye kuchengetedza mabasa;

 

• Chamfering: Mushure mokupfuura kuongororwa, pombi yesimbi inogadziriswa nekuguma kwepombi kusvika kune inodiwa pombi yekupedzisira groove saizi;

 

• Ultrasonic inspection II: Ultrasonic inspection inoitwa imwe neimwe zvakare kutarisa kukanganisa kunogona kuitika mune yakatwasuka musono welded simbi mapaipi mushure mekuwedzera kwedhayamita uye kumanikidza kwemvura.

 

• X-ray bvunzo II: X-ray indasitiri terevhizheni yekuongorora uye chubhu-yekupedzisira weld seam kuongororwa kwesimbi machubhu mushure mekuwedzera kwedhayamita uye hydrostatic pressure test;

 

• Tube end magnetic particle inspection: Kuongorora uku kunoitwa kuti uwane kukanganisa kwechubhu;

 

• Anti-corrosion uye coating: Iyo inokwanisa simbi pombi inorwisa-kuora uye kupfekedza zvinoenderana nezvinodiwa nemushandisi.