1. Lub hom phiaj ntawm galvanized welded yeeb nkab yog dab tsi?
Galvanized txheej tiv thaiv xeb thiab corrosion. Siv rau:
Hluav taws kub sib tua pipelines
Kev muab dej
Conduit thiab structural kav
2. Dab tsi yog dub welded yeeb nkab?
Cov yeeb nkab dub yog uncoated welded yeeb nkab, feem ntau yog xim hlau qub. Siv rau roj, chav, qauv, thiab ua.
3. Dab tsi ua rau weld defects hauv ERW kav?
Feem ntau ua rau:
Tsis ruaj tsis khov vuam kub
Ntug trimming tsis zoo
Kev sib sau tsis tsim nyog
Cov impurities rau ntawm daim tawv nqaij
4. Yuav tsum kuaj xyuas dab tsi rau cov kav dej welded?
Kev tshuaj ntsuam xyuas:
Kev tshuaj xyuas qhov muag
Dimensional check
Hydrostatic xeem
Kev kuaj ultrasonic (UT)
X-Kev kuaj kab hluav taws xob (RT)
Mechanical Properties Test
5. Kev ntsuam xyuas hydrostatic yog dab tsi?
Nws puv cov yeeb nkab nrog siab - dej siab los kuajto, siab tsis kam, thiab structural stability.
