1. Lub hauv paus ntsiab lus tseem ceeb ntawm arc vuam nrog electrodes
Rau kev txhim kho thiab vuam ntawm cov kav dej uas nws txoj kab uas hla tsis loj heev (xws li hauv qab 610mm) thiab qhov ntev ntawm cov kav dej tsis ntev heev (xws li hauv qab 100km), electrode arc vuam yuav tsum raug suav tias yog thawj qhov kev xaiv.Nyob rau hauv cov ntaub ntawv no, electrode arc welding yog txoj kev pheej yig tshaj vuam.
Piv nrog cov vuam tsis siv neeg, nws yuav tsum muaj cov cuab yeej siv tsawg dua thiab kev ua haujlwm, txo tus nqi kho, thiab pab pawg tsim kho ntau dua.
Electrode arc vuam tau siv rau kev teeb tsa thiab vuam rau ntau tshaj 50 xyoo.Ntau yam electrodes thiab ntau txoj kev ua haujlwm yog qhov paub tab hauv tshuab.Muaj ntau cov ntaub ntawv, kev ntsuam xyuas zoo yog yooj yim.
Tau kawg, rau kev vuam ntawm cov kav hlau uas muaj zog siab, yuav tsum tau them nyiaj rau kev xaiv thiab tswj cov vuam rods thiab cov txheej txheem ntsuas.Thaum welding ua raws li tus qauv kav dej specification AP1STD1104-2005 "Vuam ntawm cov kav dej thiab cov khoom siv cuam tshuam), siv cov khoom siv vuam tsim nyog uas tau kawm thiab sim.Thaum 100% kev tshuaj xyuas hluav taws xob tau ua tiav, nws muaj peev xwm tswj tau qhov kho tus nqi ntawm txhua qhov vuam hauv qab 3%.
Vim yog tus nqi qis thiab kev saib xyuas.Ua ke nrog kev lav zoo, electrode arc vuam yog thawj qhov kev xaiv ntawm feem ntau cov neeg cog lus yav dhau los.
2. Submerged arc tsis siv neeg vuam qhov tseem ceeb hauv paus ntsiab lus
Raws li tau hais ua ntej, lub submerged arc tsis siv neeg vuam ntawm cov kav dej yog nqa tawm hauv cov yeeb nkab vuam chaw tshwj xeeb tsim rau cov kav dej.Yog hais tias ob lub kav dej yog welded ze rau ntawm qhov chaw (ob lub yeeb nkab vuam), tus naj npawb ntawm cov welds ntawm cov kab tseem ceeb tuaj yeem raug txo los ntawm 40% mus rau 50%, uas ua rau lub voj voog qis heev.
Kev ua haujlwm siab thiab ua haujlwm zoo ntawm submerged arc tsis siv neeg vuam rau kev teeb tsa vuam yog qhov pom tseeb, tshwj xeeb tshaj yog rau cov kav dej uas muaj txoj kab uas hla loj (siab dua 406mm) thiab phab ntsa tuab tshaj 9.5mm, thaum qhov kev ncua deb ntev, rau kev lag luam, feem ntau, txoj kev ntawm Tsis siv neeg submerged arc vuam yog suav tias yog ua ntej.
Txawm li cas los xij, qhov kev pov npav ib leeg yog seb txoj kev thauj ob lub kav dej puas ua tau, txawm tias txoj kev muaj kev tso cai, thiab seb puas muaj cov xwm txheej rau kev thauj ob lub kav dej ntev dua 25m.Txwv tsis pub, kev siv cov arc vuam tsis siv neeg yuav tsis muaj nuj nqis.
Yog li ntawd, rau cov kav dej ntev ntev nrog txoj kab uas hla ntawm ntau dua 406mm thiab cov phab ntsa loj, thaum tsis muaj teeb meem hauv kev thauj mus los thiab txoj kev, txoj kev vuam ob lossis peb npaug ntawm cov kav dej tsis siv neeg submerged arc vuam yog qhov kev xaiv zoo tshaj plaws rau cov neeg ua haujlwm cog lus.
3.Flux cored hlausemi-automatic vuam qhov tseem ceeb hauv paus ntsiab lus
Ua ke nrog electrode arc vuam, flux cored hlau semi-automatic vuam yog ib qho zoo vuam txheej txheem rau txhaws vuam thiab npog vuam ntawm loj-inch thiab tuab-walled steel kav.
Lub hom phiaj tseem ceeb yog los hloov cov txheej txheem vuam sib txuas mus rau hauv kev ua haujlwm tas mus li, thiab vuam tam sim no ceev yog siab dua li ntawm electrode arc vuam, vuam hlau melts sai dua, thiab cov khoom ua tau zoo tuaj yeem yog 3 mus rau 5 npaug ntawm electrode arc. welding, yog li cov khoom siv tau zoo heev.
Tam sim no, tus kheej-shielded flux-cored hlau semi-automatic vuam yog dav siv nyob rau hauv teb pipeline vuam vim nws muaj zog cua tsis kam, tsis tshua muaj hydrogen ntsiab lus nyob rau hauv lub vuam, thiab high efficiency.Nws yog txoj kev nyiam rau kev tsim cov kav dej hauv kuv lub tebchaws.
4. Lub hauv paus tseem ceeb ntawm MIG tsis siv neeg vuam
Rau cov kav dej ntev ntev nrog txoj kab uas hla ntau dua 710mm thiab cov phab ntsa loj, thiaj li yuav tau txais kev tsim kho kom zoo thiab zoo, MIGA tsis siv neeg vuam feem ntau suav tias yog thawj.
Txoj kev no tau siv rau 25 xyoo, thiab nws tau txais kev lees paub dav dav rau cov kav dej loj hauv ntiaj teb, suav nrog cov pab pawg ntawm cov kav dej thiab cov dej hauv qab, thiab feem ntau muaj nuj nqis hauv Canada, Europe, Middle East thiab lwm lub tebchaws thiab cheeb tsam.
Qhov laj thawj tseem ceeb vim li cas txoj kev no tau siv dav yog qhov zoo ntawm kev teeb tsa thiab vuam tuaj yeem lav tau, tshwj xeeb tshaj yog thaum vuam cov kav dej muaj zog.
Vim tias cov ntsiab lus tsis tshua muaj hydrogen ntawm txoj kev vuam no, thiab cov kev cai nruj heev ntawm kev muaj pes tsawg leeg thiab kev tsim cov vuam hlau, yog tias qhov yuav tsum tau muaj zog yog siab lossis cov raj xa dej siv los thauj cov kua qaub tawm, vuam cov kav hlau qib siab nrog qhov no. txoj kev tuaj yeem tau txais kev vuam zoo.
Nws yog ib qho tsim nyog sau cia tias piv nrog electrode arc vuam, kev nqis peev hauv cov hlau arc vuam yog qhov loj, thiab cov kev xav tau ntawm cov khoom siv thiab cov neeg ua haujlwm siab.Yuav tsum tau saib xyuas kom zoo yuav tsum tau txiav txim siab, thiab cov khoom siv thiab cov roj sib xyaw uas ua tau raws li kev nyiam huv yuav tsum tau txiav txim siab.muab.
Post lub sij hawm: Jun-20-2023