Kauv welded steel kav tag nrho txais yuav cov txheej txheem submerged arc vuam, ncaj seam welded steel kav muaj submerged arc welded ncaj seam steel kav rau luv UOE, thiab ncaj seam high-frequency kuj welding rau luv ERW.
Piv nrog submerged arc welding, lub high-frequency resistance welded steel yeeb nkab (ERW steel yeeb nkab) tsis ntxiv cov khoom siv vuam thaum lub sij hawm vuam txheej txheem.Yog li ntawd, tsim weld yog tag nrho raws li cov tshuaj muaj pes tsawg leeg ntawm lub hauv paus hlau.Tom qab cov yeeb nkab steel yog welded, nws yog annealed ua rau cov kev ntxhov siab sab hauv ntawm kev ua haujlwm txias, thiab cov kev ntxhov siab sab hauv ntawm cov vuam zoo tuaj, yog li cov khoom siv dav dav ntawm ERW steel yeeb nkab zoo dua.Tab sis tam sim no, cov tuam txhab sawv cev los ntawm Shanghai Ellison thiab Guangdong Panyu Zhujiang Steel Pipe Factory tsuas yog tsim cov kav dej hauv qab φ355mm, thiab cov kav dej loj loj tsis tuaj yeem xaiv.Longitudinal submerged arc vuam (UOE steel yeeb nkab) siv cov txheej txheem tom qab vuam txias kom nthuav dav cov yeeb nkab, yog li qhov loj me ntawm UOE steel yeeb nkab yog qhov tseeb, thiab qhov zoo ntawm cov khoom sib txuas thaum UOE steel yeeb nkab txuas yog zoo. los xyuas kom meej qhov vuam zoo.Ib feem ntawm kev ntxhov siab sab hauv raug tshem tawm.Tsis tas li ntawd, ntau txoj hlua vuam (peb-xaim, plaub-xaim) yog siv rau UOE steel yeeb nkab vuam.Cov txheej txheem vuam no ua rau cov kab hluav taws xob tsawg dua thaum lub sij hawm vuam thiab tsis tshua muaj kev cuam tshuam rau thaj tsam kub ntawm cov hlau puag.Cov xaim xaim xaim xaim xaim ntawm ntau cov hlau vuam tuaj yeem ua lub luag haujlwm hauv kev tshem tawm cov kev ntxhov siab uas tshwm sim thaum vuam mus rau yav dhau los vuam hlau, yog li txhim kho cov khoom siv ntawm cov yeeb nkab steel.
Piv nrog rau cov kauv welded yeeb nkab, qhov ntev ntawm lub vuam seam ntawm cov ncaj seam submerged arc welded steel yeeb nkab yog luv dua, yog li cov vuam tsis xws luag thiab cuam tshuam me me.Nyob rau hauv lub high-pressure pipeline, lub hauv paus hlau ntawm lub ncaj seam yeeb nkab yuav ua tau 100% ultrasonic flaw nrhiav kom tau ntawm steel daim hlau ib tug los ntawm ib tug, ua tau raws li qhov yuav tsum tau ntawm high-pressure pipeline rau lub hauv paus hlau.Txawm li cas los xij, txawm hais tias qhov kev ua tau zoo ntawm UOE steel yeeb nkab yog qhov zoo dua li lwm cov kav hlau, nws cov nqi siab ua rau cov neeg siv nyiaj luv luv poob siab.Cov welds ntawm kauv steel yeeb nkab yog faib nyob rau hauv ib tug kauv zoo.Feem ntau hais lus, thaj chaw weld ntawm cov yeeb nkab steel, suav nrog thaj tsam kub-tshem ntawm vuam, yog ib feem nrog cov khoom siv tsis zoo ntawm cov yeeb nkab steel, thaum lub siab tshaj plaws hauv kev ntxhov siab ntawm cov yeeb nkab siab yog faib raws cov kev taw qhia axial, thiab cov kauv welded yeeb nkab yuav Cov tsis muaj zog qhov chaw tsis txhob muaj cov kev taw qhia ntawm qhov siab tshaj plaws nyob rau hauv kev ntxhov siab, yog li txhim kho kev ua tau zoo ntawm cov yeeb nkab steel.Tsis tas li ntawd, vim lub vuam seam tsim ntawm kauv steel yeeb nkab thiab qhov siab ntawm vuam seam, nws yog qhov nyuaj dua los ua lwm yam kev tiv thaiv corrosion, thiab qhov sib txawv yuav raug tsim ntawm ob lub vuam seams.Cov thev naus laus zis tuaj yeem daws qhov kev tiv thaiv corrosion ntawm kauv steel yeeb nkab.
Post lub sij hawm: Nov-02-2022