1
A: Thaum vuam cov ntaub ntawv no, lub hom phiaj tseem ceeb yog kom tsis txhob muaj kev kub ntxhov ntawm weld tshav kub kub (hz), yog li txo nruj. Thib ob, nws yog qhov tseem ceeb rau xaiv cov qes- hydrogen welrodes lossis consabables arc fluxes, los tiv thaiv hydrogen {}}} qhov ua rau tawg. Qhov thib peb, preheating rau kwv yees li 100 {{{{}}}}}} 150 qib yog xav tau qeeb cua txias thiab kev ntxhov siab. Thaum kawg, tom qab Weld kev kho cua sov (duab) tsis yog yuav tsum tau ua, tab sis kev ntxhov siab yuav tsim nyog nyob ntawm tuab thiab cov kev cai tshwj xeeb.
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A: Lub ntsiab cai tseem ceeb rau kev xaiv Vuam Consumabables yog "sib npaug lub zog phim" lossis "kev sib tw" tawv. " Qhov no txhais tau hais tias tus weld hlau lub zog yuav tsum tsis pub tsawg tshaj li ntawm lub hauv paus hlau, thiab nws txoj kev nruj yuav tsum tau zoo li sai tau. Tsawg - Hydrogen Potassium Electrodes xws li AWS AUTRERGED AR cov hlau vuam thiab cov hmoov sib xyaw ua ke, feem ntau pom zoo. Vuam celumables specifications feem ntau qhia cov haum rau tsawg- kub ultrasonic vuam. Qhov tseem ceeb, cov consumables yuav tsum cia kom qhuav thiab ci thiab insulated raws li cov chaw tsim khoom siv tshwj xeeb. Qhov no yog qhov tseem ceeb rau kev ua kom muaj kev vam meej qis- hydrogen welding thiab zam cov kab nrib pleb.
3. Q: Yuav tsum ceev faj dab tsi thaum khoov txias lossis machining antm A333 GR.1 steel yeeb nkab?
A: Vim tias nws yog nyob rau hauv ib txwm muaj, nws muaj kev sib luag zoo thiab ua haujlwm, ua rau nws haum rau kev sib tsoo txias. Txawm li cas los xij, nws yuav tsum raug sau tseg tias ntau deformation tuaj yeem qhia qhov kev ua haujlwm tawv thiab muaj kev nyuaj siab, tshwj xeeb thaum siv, tshwj xeeb yog thaum kub tsawg. Yog li ntawd, nws pom zoo kom tswj cov bend radius thiab zam dhau deformation. Rau machteting, nws kev ua haujlwm ib txwm muaj- Tus yam ntxwv yuav tsum tau them rau cov khoom siv ua kom tau zoo thiab txiav kom ua tiav qhov chaw ua tiav zoo. Qhov xav tau ntawm kev ntxhov siab nyem yuav tsum tau ntsuas tom qab kev ua haujlwm txias txias.
4. Q: Puas yog tshaj tawm - Weld Kev Kho Mob Kub (PWHT) yuav tsum tau rau ASTM A333 GR.1 steel yeeb nkab?
A: Cov ATTM A333 nws tus kheej tsis yuam kev tshaj tawm - Weld Kev Kho Tshav Kub (PWHT). Txawm li cas los xij, qhov xav tau ntawm pWtht nyob ntawm feem ntau yog cov qauv ntawm lwm cov qauv, xws li ASME B31.3 txheej txheem kav dej tshwj xeeb. Qhov kev qhia no feem ntau txiav txim siab seb puas yuav tsum tau daws Weld seem kev nyuaj siab thiab qauv tsim qauv. Txawm hais tias tsis tas yuav los ntawm tus qauv, muaj ntau txoj haujlwm nyuaj xaiv xaiv kev ntxhov siab ua kom muaj kev ntxhov siab thaum ua kom ruaj khov thiab ntxhov siab corrosion.
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A: Qhov zoo ntawm welded pob qij txha yog kuaj los ntawm kev sim ua tsis muaj kev sim siab (NDT) thiab kev sim ua phem. NDT yog 100% yuav tsum tau ua thiab feem ntau suav nrog 100% kev sim ua kom pom kev sab hauv xws li porosity, tsis ua tiav kev nkag, thiab tawg. Nto kuaj xws li sib nqus Martle kuaj (MT) lossis kev sim ntsuas (PT) yog siv los tshawb xyuas qhov chaw saum npoo thiab cov khoom siv hauv qab. Ib qho ntxiv, kev sim tshuaj ntsuam xyuas cov ntawv yuav tsum tau ua rau cov txheej txheem vuam siv thiab kev tshuaj ntsuam
