1. NDT yog dab tsi hauv welded yeeb nkab?
NDT=Tsis yog-Kev kuaj kev puas tsuaj, suav nrogultrasonic, eddy tam sim no, X-raytxhawm rau txheeb xyuas qhov teeb meem sab hauv lossis saum npoo yam tsis muaj kev puas tsuaj.
2. Vim li cas peb thiaj li tshem cov burrs hauv cov yeeb nkab?
Internal burrs cuam tshuamdej ntws, siab poob, thiab kev sib txuas ntawm cov kav dej, thiab tej zaum yuav ua rau muaj kev puas tsuaj rau cov ntsaws ruaj ruaj lossis cov twj paj nruag.
3. Cov ntaub ntawv dab tsi yog siv rau qis -kub welded yeeb nkab?
Cov qhab nia:16MnDG, Q355ND, Q355MD, A333 Qib 6rau qis-kub los tiv thaiv.
4. Pre-coated yeeb nkab yog dab tsi?
Cov yeeb nkab coated nrog3 PE, FBE, epoxylos yog polyethylene los tiv thaiv -corrosion nyob rau hauv faus pipelines.
5. Dab tsi yog 3PE txheej?
3PE=peb- txheej polyethylene txheej. Nws muab zoo heevcorrosion kujrau faus roj / roj / dej pipelines.
