LSAW steel yeeb nkabyog longitudinally parallel steel yeeb nkab. Feem ntau muab faib ua metric welded steel yeeb nkab, welded nyias-walled yeeb nkab, transformer txias roj yeeb nkab thiab lwm yam. Qhov ncaj seam welded yeeb nkab muaj cov txheej txheem tsim khoom yooj yim, kev ua haujlwm siab, tus nqi qis, thiab kev loj hlob sai. LSAW steel yeeb nkab raws li cov txheej txheem ntau lawm tuaj yeem muab faib ua qhov siab ncaj seam steel yeeb nkab thiab submerged arc welded ncaj seam steel yeeb nkab. Submerged arc welded ncaj seam steel kav tau muab faib ua UOE, RBE, thiab JCOE steel kav raws li lawv txoj kev sib txawv. Cov nram qab no piav qhia txog cov feem ntau cov high-frequency ncaj seam steel yeeb nkab thiab submerged arc welded ncaj seam steel yeeb nkab txoj kev.

• Striking: Tom qab cov hlau phaj siv rau kev tsim cov kab loj-ntev submerged-arc welded ncaj-joint steel kav nkag mus rau hauv cov kab ntau lawm, tag nrho-phaj ultrasonic tshuaj xyuas yog thawj zaug;

 

• Milling ntug: Los ntawm lub ntug milling tshuab, ob lub npoo ntawm cov phaj steel yog ob sab milled kom ua tiav cov phaj dav, phaj ntug sib npaug thiab cov duab zawj;

 

• Pre-bending: Pre-bending tshuab rau pre-bending ntug kom lub ntug ntawm lub rooj tsavxwm muaj ib tug curvature raws li qhov yuav tsum tau;

 

• Kev Tsim Kho: Ua ntej, ib nrab ntawm cov hlau phaj ua ntej yog thwj thiab stamped rau hauv "J" zoo ntawm lub tshuab JCO. Lwm ib nrab ntawm cov hlau phaj kuj yog khoov thiab nias rau hauv "C" zoo los tsim qhov qhib. Qhov "O".

 

• Pre-welding: Tom qab tsim cov seam ncaj welded steel yeeb nkab txuas thiab txuas txuas txuas txuas nrog siv roj tiv thaiv vuam (MAG);

 

• Internal welding: Siv ntsug multi-wire submerged arc vuam (txog plaub lub xov hlau) los txuas rau hauv cov yeeb nkab ncaj seam steel;

 

• Sab nrauv vuam: Siv ntsug multi-wire submerged arc vuam rau vuam sab nraud LSAW steel yeeb nkab;

 

• Ultrasonic soj ntsuam I: 100% kev soj ntsuam ntawm cov welds sab hauv thiab sab nraud ntawm lub longitudinal welded steel yeeb nkab thiab lub hauv paus hlau ntawm ob sab ntawm lub vuam;

 

• X-ray tshuaj ntsuam I: 100% X-ray industrial TV tshuaj xyuas ntawm cov welds sab hauv thiab sab nrauv, siv cov duab ua tshuab los xyuas kom meej qhov kev pom zoo;

 

• Kev nthuav dav txoj kab uas hla: Qhov ntev-ntev ntawm submerged-arc welded ncaj seam steel yeeb nkab tau nthuav dav los txhim kho qhov tseeb qhov tseeb ntawm cov yeeb nkab steel thiab kev faib tawm ntawm kev ntxhov siab sab hauv ntawm cov yeeb nkab steel yog txhim kho;

 

• Hydraulic siab test: Lub hauv paus txoj kab uas hla ntawm cov yeeb nkab nthuav dav yog kuaj ntawm lub tshuab ntsuas hydrostatic kom ntseeg tau tias cov yeeb nkab steel ua tau raws li qhov yuav tsum tau ua. Lub tshuab muaj cov ntaub ntawv tsis siv neeg thiab khaws cia;

 

• Chamfering: Tom qab dhau qhov kev tshuaj xyuas, cov yeeb nkab steel yog ua tiav los ntawm cov yeeb nkab kawg kom ncav cuag qhov xav tau cov yeeb nkab kawg zawj loj;

 

• Kev tshuaj xyuas Ultrasonic II: Kev tshuaj xyuas ultrasonic yog ua ib qho los ntawm ib qho ntxiv los kuaj xyuas qhov tsis xws luag uas yuav tshwm sim hauv cov seam ncaj nraim welded steel kav tom qab txoj kab uas hla expansion thiab dej siab.

 

• Kev kuaj X-ray II: X-ray muaj TV tshuaj xyuas thiab lub raj-kawg weld seam kuaj ntawm cov hlab steel tom qab txoj kab uas hla expansion thiab hydrostatic siab kuaj;

 

• Tube kawg magnetic particle soj ntsuam: Qhov kev tshuaj ntsuam no yog ua kom pom qhov kawg ntawm lub raj;

 

• Anti-corrosion thiab txheej: Cov yeeb nkab steel tsim nyog yog los tiv thaiv corrosion thiab txheej raws li tus neeg siv yuav tsum tau ua.