Q: Cov yeeb nkab qib / hom twg yog qhov yuav tsum tau ua rau kev pabcuam qaub (H2S muaj ib puag ncig)?
A: Cov kav dej ua tau raws li qhov yuav tsum tau ua rau cov kev pabcuam qaub, xws li cov uas tswj cov tawv tawv, cov ntsiab lus sulfur, thiab pov thawj HIC (Hydrogen Induced Cracking) tsis kam. Cov qauv zoo li ISO 3183 lossis NACE MR0175 / ISO 15156 muab cov lus qhia.
Q: Vim li cas galvanized welded yeeb nkab tsis pom zoo rau qee qhov dej haus?
A: Kev txhawj xeeb txog qhov muaj peev xwm ua paug ntawm cov zinc txheej thiab zinc tso rau hauv dej. Lwm txheej txheej los yog stainless hlau (xws li, 304/316) feem ntau siv.
Q: Dab tsi yog qhov tseem ceeb ntawm kev xaiv ERW vs. CW (Cold Worked / Welded) yeeb nkab rau kev siv tshuab?
A: Dimensional precision thiab nto tiav. CW cov kav dej muaj kev tiv thaiv nruj dua thiab qhov chaw du, haum rau kev siv xws li hydraulic kheej kheej.
Q: Thaum twg koj yuav qhia ASTM A333 qib rau welded yeeb nkab?
A: Rau qhov qis - qhov kub thiab txias qhov kev cuam tshuam yog qhov tseem ceeb. Qib zoo li A333 Gr. 6 (-45 degree) muaj ntau.
Q: Dab tsi yog daim ntawv thov raug rau ASTM A513 Hom 5 welded mechanical tubing?
A: Nws yog hluav taws xob tsis kam welded thiab ces kos rau qhov tseeb qhov ntev. Cov ntawv thov feem ntau suav nrog cov khoom siv tsheb, cov khoom siv tshuab, thiab rooj tog zaum.
