1. Q: Lub hom phiaj ntawm kev kuaj tsis zoo (NDT) zoo li UT ntawm cov kav dej seamless yog dab tsi?
A:Ultrasonic Testing (UT) yog siv los txheeb xyuas qhov tsis zoo ntawm sab hauv thiab sab nraud (xws li laminations, suav nrog, pits) hauv cov yeeb nkab phab ntsa yam tsis muaj kev puas tsuaj rau cov khoom, ua kom zoo thiab kev ncaj ncees.
2. Q: Qhov txawv ntawm "Yield Strength" thiab "Tensile Strength" yog dab tsi?
A:Yield Strength yog qhov kev ntxhov siab uas cov khoom pib deform plastically (mus tas li). Tensile Strength yog qhov kev ntxhov siab tshaj plaws uas cov khoom tuaj yeem tiv taus thaum raug ncab ua ntej caj dab thiab tawg.
4. Q: "D" thiab "L" txhais li cas hauv kev npaj cov yeeb nkab xaus?
A:"D" sawv rau Plain End (cut square). "L" feem ntau yog hais txog Longitudinally SAW txiav xaus, tab sis nyob rau hauv threading ntsiab lus, nws txhais tau tias Threaded & Coupled (feem ntau abbreviated li T&C). Beveled End (BE) yog siv rau vuam.
5. Q: Daim ntawv pov thawj PED yog dab tsi?
A:PED sawv cev rau Cov Khoom Siv Hluav Taws Xob (2014/68/EU). Daim ntawv pov thawj PED qhia tias cov chaw tsim khoom siv yeeb nkab zoo thiab cov khoom ua tau raws li European Union txoj cai lij choj kev nyab xeeb rau cov cuab yeej ua haujlwm hauv siab.
