1. Q: Dab tsi yog qhov tseem ceeb thaum xaiv cov yeeb nkab seamless rau siab - daim ntawv thov siab?
A:Cov ntsiab lus tseem ceeb yog cov yeeb nkab lub zog tawm los, phab ntsa tuab (seem), cov khoom siv qib, cuam tshuam rau qhov hnyav ntawm kev ua haujlwm kub, thiab nws cov ntawv pov thawj rau cov qauv tsim (xws li API, ASTM). Ib qho kev nthuav dav tsim xam raws li ASME B31 code series yog qhov tseem ceeb.
2. Q: Qhov txawv ntawm "Yield Strength" thiab "Tensile Strength" yog dab tsi?
A: Yield zogyog qhov kev ntxhov siab uas cov khoom pib deform plastically (mus tas li).Tensile zogyog qhov siab tshaj plaws cov khoom siv tuaj yeem tiv taus ua ntej tawg. Rau siab- muaj cov qauv tsim, lub zog tawm los feem ntau yog qhov tseem ceeb tshaj qhov ntsuas.
3. Q: Vim li cas traceability tseem ceeb rau cov kav dej seamless?
A:Traceability, los ntawm cov xov tooj cua sov thiab cov cim tshwj xeeb, tso cai rau kev taug qab cov yeeb nkab txoj kev taug kev los ntawm steel zeb mus rau qhov kawg installation. Qhov no yog qhov tseem ceeb rau kev tswj xyuas kom zoo, ntawv pov thawj, thiab ua cov hauv paus hauv paus kev txheeb xyuas thaum muaj qhov tsis ua tiav.
4. Q: Dab tsi yog cov teeb meem tseem ceeb hauv machining thiab threading carbon seamless kav?
A:Cov ntsiab lus ntawm cov pa roj carbon ntau tuaj yeem ua rau cov khoom siv tawv thiab ua rau cov khoom siv ntau dua, yuav tsum tau txiav nrawm thiab cov khoom siv. Kev tuav cov xov qhov ntev thiab qhov chaw tiav rau OCTG daim ntawv thov yog ib qho tseem ceeb kom ntseeg tau tias kev sib txuas ua pov thawj.
5. Q: Lub ntiaj teb cov khoom siv thiab kev thov rau cov kav dej seamless hloov pauv li cas?
A:Kev ua lag luam yog kev sib tw heev thiab ncaj qha mus rau kev siv peev hauv Cov Roj & Roj thiab Hluav Taws Xob Hluav Taws Xob. Cov nqi roj siab feem ntau ua rau muaj kev ua haujlwm drilling thiab kev thov ntau dua rau cov khoom lag luam OCTG, thaum kev lag luam poob qis ua rau cov khoom siv glut thiab qis dua.
