1. Q: "Casing" thiab "Tubing" yog dab tsi?
A: Ob leeg yog roj lub teb chaws tubular khoom (OCTG). Casing (API 5CT) kab lub qhov dej. Tubing (API 5CT) yog nyob rau hauv lub casing coj roj / roj. Lawv yog seamless rau lub zog thiab kev ncaj ncees.
2. Q: API 5CT Qib J55 yog dab tsi?
A: Ib qib zoo rau cov casing thiab tubing hauv qhov dej ntiav mus rau nruab nrab qhov tob. Nws muaj lub zog nruab nrab thiab feem ntau siv nyob rau hauv tsis yog -ib puag ncig qaub.
3. Q: "P110" txhais li cas hauv API 5CT?
A: P110 yog qib siab - lub zog rau cov casing, qhov "P" sawv cev rau "Pipe" thiab "110" qhia tias qhov muaj zog tsawg kawg nkaus ntawm 110,000 psi. Nws yuav tsum muaj kev tswj xyuas nruj.
4. Q: Qhov txawv ntawm "Seamless" thiab "ERW" hauv kab yeeb nkab yog dab tsi?
A: Seamless tsis muaj longitudinal weld, muab lub zog zoo ib yam. ERW (Electric Resistance Welded) muaj qhov vuam seam. Seamless yog qhov zoo dua rau kev siab dua, corrosive media, lossis cov haujlwm tseem ceeb.
5. Q: Dab tsi yog "Finned Tube"?
A: Ib qho tshwj xeeb seamless raj (pib yeeb nkab zoo li A106 B) nrog rau qhov chaw txuas (fins) welded los yog extruded rau nws. Nws zoo heev ua kom cov cua sov hloov mus rau hauv boilers thiab cua sov.
