Q1: Dab tsi yog cov ntsiab lus mob tseem ceeb hauv cov kav dej txuas hnub no?
A:Kev lag luam ntsib ntau qhov kev sib tw, suav nrog kev tsim khoom qis qis, cov nqi neeg ua haujlwm siab vim yog qhov nyuaj ntawm kev ntiav cov kws txawj welders, kev tswj xyuas kev sib koom ua ke, thiab feem ntau tsis tshua muaj kev ua tau zoo thiab cov nyiaj tau los-5.
Q2: Vim li cas girth weld tsis ua haujlwm yog ib qho kev txhawj xeeb loj rau cov roj thiab cov kav dej?
A:Girth weld tsis ua hauj lwm yog ib qho tseem ceeb ntawm cov kav dej tsis ua hauj lwm. Nws tshwm sim los ntawm kev sib koom ua ke ntawm kev thauj khoom ntxiv, qhov tsis xws luag, kev ua haujlwm degradation, thiab strain concentration. Cov teeb meem xws li misalignment thiab tsis muaj zog sib txuam hauv cov vuam lossis cua sov- thaj chaw cuam tshuam (HAZ) yog qhov tseem ceeb ntawm cov khoom siv-6.
Q3: Yuav ua li cas tsis sib xws cov qauv ntawm cov yeeb nkab tsim thiab kev tsim kho ua rau muaj teeb meem?
A:Cov qauv kev tsis sib xws tuaj yeem ua rau muaj teeb meem xws li cov yeeb nkab kawg tsis xws luag (concavity lossis convexity), misalignment, thiab tsis muaj kev nkag mus rau hauv welds. Qhov no tuaj yeem ua rau tsis yog -ua raws li kev soj ntsuam welds thiab kev lag luam loj-1.
Q4: Dab tsi yog lub hauv paus ua rau muaj xwm txheej hauv cov kav dej qub?
A:Kev tsis zoo ntawm - qhov chaw vuam zoo tau pom tias yog qhov ua rau muaj kev sib tsoo loj hauv cov kav dej qub-3.
Q5: Dab tsi yog qee qhov pom qhov tsis xws luag hauv cov kav dej welds?
A:Feem ntau pom qhov tsis xws luag muaj xws li:
Undercut:Ib tug zawj melted rau hauv lub hauv paus hlau nyob ib sab ntawm cov ntiv taw weld uas tsis tau sau los ntawm weld hlau-7.
Sib tshooj:Kuj tseem hu ua "weld hlaws," nws tshwm sim thaum molten hlau ntws mus rau hauv cov hlau tsis muaj hlau los yog protrudes los ntawm lub hauv paus ntawm weld-7.
Concavity (Suck-up):Kev nyuaj siab ntawm qhov chaw weld los yog hauv paus ntawm lub weld-7
