1. Q: Cov txheej txheem tsim khoom ntawm ERW yeeb nkab cuam tshuam li cas?
A:Cov txheej txheem ERW siv hluav taws xob tiv thaiv los tsim cov seam. Weld zoo yog siab, tab sis cov txheej txheem tuaj yeem tsim HAZ nrog cov khoom sib txawv me ntsis dua li cov niam txiv hlau.
2. Q: Dab tsi yog qhov kev txhawj xeeb ntawm "raws li -welded" hauv qee qib yeeb nkab?
A:Nyob rau hauv "raws li{0}}welded", lub weld thiab HAZ khaws cov kev ntxhov siab seem thiab tej zaum yuav muaj cov khoom siv hluav taws xob tsawg dua, uas tuaj yeem ua rau muaj kev puas tsuaj rau qee yam kev pabcuam. Normalizing los yog kev ntxhov siab yuav tsum tau.
3. Q: Dab tsi yog qhov kev txwv tseem ceeb ntawm kev txuas ntxiv -welded (CW) yeeb nkab rau ASTM A53?
A:CW yeeb nkab tsis haum rau dabtsi yog khoov, flanging, los yog zoo sib xws kev ua hauj lwm, raws li cov weld yuav puas. Nws yog rau qhov yooj yim, qis -stress conduit.
4. Q: Cov pa roj carbon steel qib twg yuav raug teev tseg rau qis - kev pabcuam kub mus txog -46 degree?
A:ASTM A333 Qib 6 yog seamless / welded carbon steel yeeb nkab tshwj xeeb rau qis- qhov kub thiab txias, nrog rau kev ntsuas cuam tshuam.
5. Q: Dab tsi yog qhov tseem ceeb ntawm "L" hauv qib zoo li A106 Gr. B vs A106 Gr. B(L)?
A:Qhov "(L)" txhais tau hais tias cov yeeb nkab tau muab los ua kom tau raws li cov ntsiab lus qis tshaj plaws rau kev txhim kho weldability, feem ntau ua raws li qhov siab tshaj ntawm 0.30% Carbon rau B(L).
