Hauv ntiaj teb kev tsim khoom lag luam, tshwj xeeb tshaj yog nyob rau hauv lub zog fais fab, qhov zoo ntawm cov welds hauv cov kav dej tsim khoom yog qhov tseem ceeb heev. Qhov no yog qhov tseeb tshwj xeeb rau cov kav dej roj, qhov twg kev ncaj ncees ntawm cov weld tuaj yeem txhais tau tias qhov sib txawv ntawm kev nyab xeeb thiab kev puas tsuaj. Ntawm peb lub Hoobkas hauv Cangzhou, Hebei Xeev, peb nkag siab txog lub luag haujlwm tseem ceeb uas cov weld zoo ua si hauv kev ua kom ntseeg tau tias muaj kev ntseeg siab thiab kev nyab xeeb ntawm peb cov khoom. Peb lub tuam txhab tau tsim tsa xyoo 1993 thiab tau loj hlob los npog thaj tsam ntawm 350,000 square meters, tag nrho cov cuab tam ntawm RMB 680 lab, thiab 680 tus neeg ua haujlwm mob siab rau.
Ib qho ntawm cov yam tseem ceeb uas yuav tsum xav txog thaum arc welding natural gas pipelines yog hom kev siv tshuab vuam. Raukauv welded yeeb nkab, txoj kev siv ntau tshaj plaws yog txoj kev siv submerged arc welding (SAW). Cov txheej txheem no tau txais kev nyiam vim nws muaj peev xwm tsim cov vuam zoo, ruaj khov, thiab zoo. Cov txheej txheem submerged arc welding cuam tshuam nrog kev tsim ntawm arc ntawm lub electrode pub tas li thiab cov khoom ua haujlwm, uas raug submerged nyob rau hauv ib txheej ntawm cov kua dej granular. Qhov no tsis yog tsuas yog tiv thaiv cov vuam los ntawm kev ua qias tuaj, tab sis kuj txhim kho qhov zoo ntawm cov vuam los ntawm kev muab cov arc ruaj khov thiab txo qis spatter.
Qhov tseem ceeb ntawmcov kav dejQhov zoo ntawm kev vuam tsis tuaj yeem hais ntau dhau. Hauv kev thauj mus los ntawm cov roj av, txhua qhov kev vuam tsis ua haujlwm tuaj yeem ua rau muaj kev puas tsuaj loj heev, suav nrog kev xau, kev tawg thiab kev puas tsuaj rau ib puag ncig. Yog li ntawd, kev ua kom peb cov txheej txheem vuam ua tau raws li cov qauv siab tshaj plaws yog qhov tseem ceeb tshaj plaws. Peb txoj kev cog lus rau qhov zoo pib nrog kev xaiv cov khoom siv raw thiab txuas ntxiv mus txog txhua theem ntawm cov txheej txheem tsim khoom, suav nrog kev sim thiab kev tshuaj xyuas cov vuam.
Hauv peb lub chaw ua haujlwm Cangzhou, peb siv cov thev naus laus zis siab heev thiab cov kws tshaj lij txawj ntse los xyuas kom meej tias peb cov txheej txheem vuam submerged arc tsim cov txiaj ntsig zoo tshaj plaws. Peb pab neeg tau kawm los saib xyuas thiab tswj cov kev vuam kom zoo, xyuas kom meej tias txhua qhov vuam ua tau raws li cov kev cai nruj uas cov qauv kev lag luam tau teev tseg. Qhov kev saib xyuas kom meej no tsis yog tsuas yog txhim kho kev ruaj khov ntawm peb cov kav dej roj xwb, tab sis kuj tau txais kev ntseeg siab ntawm peb cov neeg siv khoom, uas vam khom peb cov khoom rau kev thauj mus los hluav taws xob kom muaj kev nyab xeeb thiab ua haujlwm tau zoo.
Tsis tas li ntawd xwb, qhov zoo ntawm cov kav dej txuas ncaj qha cuam tshuam rau tag nrho kev ua tau zoo thiab lub neej ntawm cov kav dej.raj vuamtxo qhov yuav muaj teeb meem txij nkawm thiab ntev lub neej ntawm cov kav dej, thaum kawg txuag cov nqi rau peb cov neeg siv khoom. Hauv kev lag luam uas kev ntseeg siab yog qhov tseem ceeb, kev nqis peev rau qhov zoo tshaj plaws ntawm kev vuam yog ntau dua li tsuas yog ib qho kev xaiv xwb; nws yog qhov tsim nyog.
Xaus lus, qhov tseem ceeb ntawm kev vuam zoo ntawm cov kav dej hauv kev tsim cov kav dej roj av tsis tuaj yeem tsis quav ntsej. Ua ib lub tuam txhab tsim khoom lag luam, peb txoj kev cog lus los siv cov thev naus laus zis vuam siab heev xws li kev vuam submerged arc thiab peb qhov kev tsom mus rau kev tswj xyuas zoo ua rau peb yog tus khub ntseeg siab rau peb cov neeg siv khoom. Nrog ntau tshaj peb xyoo caum ntawm kev paub dhau los thiab cov neeg ua haujlwm mob siab rau, peb txuas ntxiv muab qhov tseem ceeb rau kev nyab xeeb thiab kev ntseeg siab ntawm peb cov khoom, kom ntseeg tau tias peb ua tau raws li qhov xav tau ntawm kev lag luam hluav taws xob uas hloov pauv. Thaum peb txav mus tom ntej, peb tseem nyob ruaj khov hauv peb lub hom phiaj los muab cov kav dej roj av zoo tshaj plaws, vim tias thaum nws los txog rau kev thauj mus los hluav taws xob, qhov zoo tsis yog qhov tseem ceeb xwb; nws yog qhov tseem ceeb.
Lub sijhawm tshaj tawm: Lub Ib Hlis-07-2025