Q: Dab tsi yog qhov kev kuaj xyuas vuam vuam rau API 5L X80 welded yeeb nkab?A: API 5L X80 welded yeeb nkab yuav tsum tsis muaj -kev kuaj kev puas tsuaj (NDT), suav nrog kev kuaj ultrasonic (UT) rau vuam seam kev ncaj ncees, kev kuaj hluav taws xob (RT) rau kev puas tsuaj sab hauv, thiab kev ntsuas siab kom tsis txhob xau.
Q: Cov khoom siv ntawm ASTM A333 Qib 3 welded yeeb nkab yog dab tsi?A: ASTM A333 Qib 3 yog cov pa roj carbon steel welded yeeb nkab uas muaj qhov tsawg kawg nkaus lub zog ntawm 276 MPa, tsim los rau qis - kev pabcuam kub (tsawg kawg -101 ° C), tsim rau cov khoom siv cryogenic thiab cov kav dej thauj mus los.
Q: GB / T 9711.2 Qib L360 welded yeeb nkab puas tuaj yeem siv rau siab - cov roj kav dej siab?A: Yog, GB/T 9711.2 Qib L360 (sib npaug rau API 5L X52) muaj qhov tsawg kawg nkaus yield zog ntawm 360 MPa, uas ua tau raws li cov kev xav tau ntawm siab - siab roj xa mus kav dej (siab ≥10 MPa).
Q: Ntev npaum li cas ntawm API 5L welded kav?A: API 5L welded kav feem ntau muab nyob rau hauv ntev ntawm 6 meters, 12 meters, los yog 18 meters. Kev cai ntev tuaj yeem tsim tau raws li cov neeg siv khoom xav tau, tab sis qhov ntev tshaj plaws feem ntau tsis tshaj 24 meters.
Q: Dab tsi yog qhov txawv ntawm kub -dip galvanized thiab electro-galvanized GB / T 3091 welded kav?A: Kub-dip galvanized kav muaj cov zinc txheej tuab (86-100 μm) thiab zoo dua corrosion kuj, haum rau kev siv sab nraum zoov thiab hauv av. Electro- cov kav dej galvanized muaj cov txheej nyias nyias (10-30 μm) thiab siv rau qhov chaw nyob sab hauv tsev uas tsis muaj corrosion.
